REFRIGERATOR Model : SR-608EV Model : SR-648EV SR-688EV SERVICE Manual REFRIGERATOR CONTENTS 1. Safety Precautions And Warnings 2. Product Specifications 3. Electrical Part Specifications & Standard 4. Electric Diagram 5. Outer Package Specification 6. Air Circulation Route 7. Functions And Directions 8. Circuit Operating Theory "A" 9. Failure Diagnosis And Repairment 10. Disassemble & Assemble Drawing And Part Lists 11. Disassemble & Assemble Method 12.
1. Safety precautions and warnings Read all instructions before using this appliance in order to aboid risk of accident or possible damage. Warning/Caution Description of symbols Indicates prohibition This symbol is intended to Warning alert the user to the possible death or injury. Do not disassemble Do not contant Caution This symbol is intended to alart the user to the possible injury or damage.
Caution Do not store bottled food or drinks in the freezer compartment. • Bottles may explode causing personal injury. Prohibition Do not put anything on top of the refrigerator. • Opening or closing the door may trigger loose items to slip and cause injury. Do not store food in an unstable manner. • Opening the door may trigger loose items to slip and cause injury. Prohibition Do not store anything other than food in the refrigerator.
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2. Product Specifications ITEM STANDARD Model Name SR-606EV SR-608EV SR-646EV SR-648EV SR-686EV SR-688EV Total 504 499 544 538 581 575 Freezer 153 153 165 165 165 165 Refrigerator 351 346 379 373 416 410 Net Capacity (l /CU.FT) Net dimension (WxHxD) 840X726X1753.5 840X726X1803.5 840X726X1847.5 Regular Frequency 115/60, 127/60, 240/50.
7. Function and Directions 7-1 The outer size a b 8 Model A B C D Remark SR-606EA 1066.5 580 1736.5 1753.5 ‘a’ applied SR-608EA 1066.5 580 1736.5 1753.5 ‘b’ applied SR-646EA 1096.5 600 1766.5 1803.5 ‘a’ applied SR-648EA 1096.5 600 1766.5 1803.5 ‘b’ applied SR-686EA 1140.5 600 1810.5 1847.5 ‘a’ applied SR-688EA 1140.5 600 1810.5 1847.
-2 The name of each parts and disassemble method • Push to direction Freezer shelf • Up the front of shelf to direction pull and apart to direction 2 . 1 1 and apart to direction 2. then 2 1 1 2 Chilled room shelf • Pull to the arrow direction then up and apart at the locking point. • Up and apart as showed. (concerned model : SR5066/5466/5866) Shelf REF. Vegetable box and cover • Pull with both hands as showed. • The height can be adjusted according to the stored bowls.
7-3 Freezing cycle COMPRESSOR → SUB CONDENSER → CLUSTER PIPE → HOT PIPE → DRYER →CAPILLARY TUBE →REFRIGERATOR EVAPORATOR → FREEZER EVAPORATOR → A C C U M U L A T O R →SUCTION PIPE → COMPRESSOR 10 Samsung Electronics
7-4 PANEL display QUICK REF. LO QUICK REF. LO REF. CONTROL FRE CONTROL DOOR DOOR QUICK ALARM FREE FRE. HI QUICK HI-MOISTURE FRE. HI FRE, CONTROL 7-5 Temperature control 1) Freezer temperature control 1. It consists of five steps as follows and selected by one button. Mid Æ Mid.High Æ High Æ Low Æ Low.Mid 2. It is circulated and displayed one by one by pressing the button. 3.
7-6. Power freeze and Power • Selected by additional quick freeze & refrigeration button. • The lamp of quick freeze and refrigeration circulated everytime it pushed. • No change of setting temperature occured during quick freeze and refrigeration selected. • Temperature of freezer and refrigerator can be re-setted while quick freeze and refrigeration operates. 1) Quick freeze (1)Comp. and F-fan runs continuously for two and a half hours when quick freeze selected.
7-8 Defrosting 1) From the first power on, defrosting started after 4 hours of total Comp on time. 2) After that defrosting cycle can be varied from 6 hours to 32hours. (Comp on time) 7-9 Testing • Testing is for PCB, product, function and service. • After testing, turn the power on to start self diagnosis. 1) Forced operating (1) As the button on PCB pushed once, Comp starts immediately without 5 minutes delay.
(6) When refrigerator repaired, sure to power off and on to run self diagnosis. (7) Refer to belows for problems and related displays. No Item Display LED Symptom Remark 1 R1-Sensor Refrigerator “Low” • R-room left sensor housing disconnection. • Faulty connection. • Wire open or short. • Faulty sensor. R1-Sensor temperature is over +50˚C or below –50˚C. 2 R2-Sensor Refrigerator “Low · Mid” • R-room left right sensor housing disconnection. • Faulty connection. • Wire open or short.
7-11 Load status display 1) Press power F/R key for five seconds then press temperature control key in the refrigerator after temperature display lamps on and off three times. 2) This mode shows which load is being sourced signal from MICOM currently. This doesn’ t mean the load is operating but just show MICOM signal output. The Compressor may not operate due to the open wire or relay missing though the display shows the Compressor operating.
11. Disassemble and assemble method 11-1 Refrigerator inside lamp replacement 1) Remove the screw with (+) driver and push the cover to the arrow direction and apart. 2) Remove out the lamp to the arrow direction and replace with new one. ( Left & Right ) 3) Insert the front of the cover first and screw it. 11-2 Freezer inside lamp replacement • Grab the the salient part of cover and pull it down to apart. Replace the 220V/15W lamp and insert front of cover first and then fix it.
11-3 Disassemble of refrigerator cooling part 1) Remove foods and shelves inside the refrigerator. 2) Pull out the chilled room box to the arrow direction and pul it up to apart at the locking point. 3) Push the right arrow part of the chilled room inside and apart the chilled room cover. 4) Up the cover of vegetable box and pull apart then pull it out. 5) Remove the screws with (-) driver. 2 screws 6) Release the locking part using (-) driver as shown. 7) Pull out the cover front part.
8) Disassemble the wire housing of motor in the center. 9) Pull the housing part and disassemble the wire terminal. 10) Remove screws of duct and pull apart. Remove 2 screws 11) Release wire terminal on top of the left. 12) Remove screws of evap. Cover rear and release the locking part of both left and right using (-) driver.
♦ Cooling cycle unit assembly in the refrigerating compartment (Groove for preventing small ice when defrosting) ♦ Cooling cycle unit cover assembly in the refrigerating compartment 44 Samsung Electronics
♦ Rotating duct assembly in the refrigerating compartment Samsung Electronics 45
11-4 Disassemble of cooling part in the freezing room 1) Pull out the shelf. 1 2 2) Remove screws of evap cover and pull apart. 3) Disconnect the each terminal of wire housing on top of the left side. 4) Remove screws of evap. Cover rear and release the locking point using (-) driver.
♦ Assembly of the cooling cycle unit in the freezer Maintains 45˚ (Coolant & noise reduction) Samsung Electronics 47
11-5 Assembling specifications of machinery room 1. remove screws of compressor cover 2.
11-6 Assembling specifications of power supply part 1. Turn off the power of refrigerator. 2. Remove the cover using (-) driver. 3.
11-7 Disassembling method and order of water dispenser 1. Disassembling method and order of cock part 1-1. Open the door and detach the water tank. Throw away waters in the tank. 1-2. Turn the cock on the bottom of the water tank to counterclockwise and apart. 1-3. Push part 6 to arrow direction and apart part 2 then part 5,6 automatically aparted. Puch the locking point to arrow direcion to apart part 3. 1) Be careful not to damage the parts 1,2,5,7 ( It may cause a leak of water.
11-8 The operating theory and order of water dispenser 1. Push the knob lever(1-1) to the arrow direction. 2. Lever dispenser(1-2) rotates around spring-lever(13) to the counterclockwise and push guide pin(2-1) and press the spring dispenser(2-2) vertically. 3. O-ring(big)(2-4) inserted in guide-push(2-3) moves vertically and aparts from cock-dispenser(2-5) then water flows through path of guide-pin(2-1) to the cup. 4.
11-9 Dispenser unit list NO CODE-NO PART 1 DA63-10905C ASS’Y-COVER DISPENSER M-PROJECT 1 1-1 DA64-40173B KNOB(LEVER) ABS 1 1-2 DA32-10105G LEVER-DISPENSER POM(TP-20) 1 1-3 DA61-20146A SPRING(LEVER) STS-304(WPB) 1 1-4 DA64-90138B KEY(LEVER) ABS(HG-0760) 1 1-5 DA64-10896B COVER-DISPENSER ABS(HG-0760) 1 2 DA64-90136A TANK-WATER ASS’Y M-PROJECT 1 2-1 DA71-70158A GUIDE-PIN PC 1 2-2 DA61-20147A SPRING-DISPENSER STS-304(WPB) 1 2-3 DA71-70159A GUIDE-PUSH PC 1 2-4
11-10 General diagnosis of water dispenser No water or too little water flow out Check the water in the water tank Fill in the water tank Normal Normal Check the fixed state of water tank ( If the fixed state is bad the guide-pin doesn’ t work due to the wrongly positioned cock-ass’ y) Normal Fix the water tank correctly ( Check guide-variety ) Water falls continueously Check the contact state of o-ring ( burr, eveness, etc) (It acn cause a leak of water.
8. Circuit operating theory 8-1 Power supply part Circuit used Voltage (DC 12V) Relay Operation Vcc (DC 5V) Power around MICOM & Sensor Detector V12 (DC 12V) LED Display & S/W Detector Secondary voltage output of DC trans is sourced 1~3 and 5~7 about 15V. On the ’a’ part, input is rectified and regulated by MC 7812 and is about DC12V. This voltage is applied for relay running and regulated again by 7805 to transformer. DC 5V is applied to display part after rectified and regulated by MC7812.
8-3 Door S/W sensing part DOOR F R Door Conditions Door S/W Contact CLOSE CLOSE OPEN OPEN CLOSE CLOSE OPEN OPEN CON06 PIN NO Micom Input Voltage “HIGH” 1 “LOW” “HIGH” 3 “LOW” 1) When the door is opened, the door S/W closed and MICOM input is ‘Low’. Then the door-open is sensed. 2) When the door is closed, the door S/W is opened and MICOM input is ‘high’. Then the door closed is sensed. 8-4 “V” motor, location sensing part ( Reed S/W) 1) “V” motor’s location sensing which is for G.A.
8-5. Temp. sensing part (Room Temp Sensor) When Sensor is opened When sensor is cut off MICOM input “HIGH” MICOM input “LOW” 1) Thermistor is used for sensing which has negative resistance coffiecient to the temperature. 2) MICOM input voltage, VF of sensor is VF= RTH xVcc RTH + R24 ( Vcc: 5V, Rth : Sensor resistance ) 3) Refer to conversion table for VF and RTH according to temperature.
8-6 Comp and defrosting heater operating As it is seen above block diagram, 220V line is connected to the commons of Comp relay, Ry78 and defrosting heater relay, Ry77, Ry71. When those relays are off state Comp and defrosting heater are also off. As Comp relay moves to on and AC 220V applied to Comp load it starts operating. On the other hand defrost heater runs if defrost heater relay moves to on. There is no chance that both Comp and defrost heater runs together so it’s useful for safety aspect.
9. Failure diagnosis and repairment Main PCB check • Turn the power off and on again for self diagnosis check. • Refer to belows for error code table ♦ Error code table Item Display “LOW” “LOW.Mid” “Mid” “Mid.HIGH” “LOW” Refrigerator R1 sensor R2 sensor R Defro. sensor – Swing fan motor Freezer Room Temp sensor F sensor F Defro. sensor – – V(v) T(˚C) R(ohm) CONTROL BOX Room TEMP-Sensor F Sensor F Defro. Sensor Freezer R1 Sensor R Defro.
Check in advance 1. Check the power of consent and power code. 2. Check it based on the “References” on the next pages.
9-2 Self diagnosis failure 1) Outer temperature sensor failure Start Is main PCB connection (CON 5) O.K. ? N Connection failure Y N Is outertemp sensor O.K. Change sensor Y Is input vltg of CON 05 pin2 O.K. N Wire open Change main PCB ass’ y 2) R1, R2, refrigerator temp. sensor failure Start Is temp. sensor O.K. ? N Change sensor Y Is main PCB connection (CON02) O.K. ? N Connection failure Y Is input vltg of CON 02 pin1,2 O.K.
3) Refrigerator’ s defrosting sensor failure Start Is main PCB connection (CON 5) O.K. ? N Connection failure Y Is defrosting sensor O.K. N Change sensor Y Is connection of defrosting sensor O.K. N Connection failure Y Is input vltg of CON 03 pin4 O.K. N Wire open Y Change main PCB ass’ y 4) F1, Freezer temp. sensor failure Start Is main PCB connection (CON03) O.K. ? N Connection failure Y Is temp. sensor O.K. N Change sensor Y Is connection of temp. sensor O.K.
5) Freezer’ s defrosting sensor failure Start N Is main PCB connection (CON03) O.K. ? Connection failure Y N Is defrosting sensor O.K. Change sensor Y Is connection of defrosting sensor O.K. N Connection failure Y Is input vltg of CON 03 pin5 O.K.
9-3 In case of continuous alarming references • F/R door open alarms for ten seconds after 2 minutes later. If door opens continuously, door open alarms for ten seconds with one minute cycle. ( ten times of “Ding-Dong”) • If there is moisture in door S/W, it is shorted and alarms due to the MICOM’s misjudgement. In this case the inside lamps of freezer and refrigerator turns off so the lamp do not turns on though you open the door.
2) In case of “Beep-Beep” alarming Start Is forced operating / frosting selected ? N Cancel forced oper./defro. Y Is it the same when power on again? N Main PCB O.K. Y CON04 shorted. or touched references • There is no “beep-beep” alarming except the forced deforst or sensing trouble during self diagnosis. • If self diagnosis sensed trouble, it is displayed on the panel PCB, so easy to check. If not , the forced deforst or forced operation is selected the notch status are “High”-“Mid.
4) In case of the panel PCB key selection is impossible Start Is the connection of cover O.K. ? N Connection failure Y Is main PCB connection (CON07) O.K. ? N Re-connection Y Is panel PCB connection O.K. ? N Connection failure Y Are there any keys already pressed ? Y N Re-assemble panel PCB Change panel PCB 9-4 In case of fan do not run references ‘Be sure to check cooling fan under forced operation.’ 1. F-fan, R-fan and Comp cooling fan are off when Comp is off. 2.
9-5 In case of swing fan in the refrigerator doesn’ trun. Start Does it run for 30 seconds when the door open? Y Swing fan O.K. N Is the door S/W O.K. ? N Change door S/W Y Is the connection of CON09 O.K. ? N Connection failure Y Is the vltg of both ends of motor 220V N Y Motor failure Change main PCB ass’ y references 1. Swing fan doesn’ t run at the off state of R-fan. ( door closed) 2.
1) In case of F-fan doesn’ t run Start Is it forced operation ? Forced operation Y Does it run 1 min after the door S/W pressed? Y F-fan O.K. N Is the connection of CON10 O.K.
2) In case of R-fan doesn’ trun Start Select forced operation. Does it run 1 min after the door S/W pressed? Y R-fan O.K. N Does the door S/W works normally N Change door S/W Y Is the connection of CON09 O.K.
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NO CODE-NO ITEM SPECIFICATIONS Q’TY REMARK DA63-11041B COVER LAMP FRE ASSY 220V, 240V 1 DA63-11041C COVER LAMP FRE ASSY 110V, 127V 1 1-1 DA32-10109A SENSOR FRE 502AT 1 1-2 DA63-11030A COVER LAMP FRE MIPS 1 1-3 DA47-40112R LAMP HOLDER PBT 1 1-4 4713-000213 LAMP-INCANDESCENT 220V~240V/15W 1 4713-001035 LAMP-INCANDESCENT 110V~127V/15W 1 1-5 6002-000215 SCREW TAP TH 1-4X16FE, FXY 2 2 DA67-20163N SHELF FRE ASSY GPPS 1 2-1 DA67-20135D SHELF FRE GPPS 1 2-2 DA67-
10-2 Refrizerating Compartment Samsung Electronics 33
NO CODE-NO 1 1-1 1-2 1-3 2 2-1 2-2 DA59-40238C, E, A, B DA47-10148D DA32-10105G DA63-40001A DA63-11040D, C DA63-11031A 4713-000213 4713-001035 DA47-40112T DA61-70266A DA02-90106E DA63-11036A DA67-40300D DA66-10104A DA71-20145A DA64-20205A DA64-20204A DA63-11020D DA63-10467A DA32-10105B DA63-10534L, R, J, K DA63-10216A DA63-10364A DA31-20103A DA31-0109D, W, B, F DA61-20128A DA72-60042A 6002-000224 DA63-40119A 6002-000215 DA72-40484A DA39-20122E DA63-10235F DA67-30266D 6002-000215 DA67-20172B DA63-10384G D
NO CODE-NO 17-6 17-7 DA72-60161D DA31-10107D DA31-10107E DA60-40104A DA31-20132A DA63-40133A DA31-20132A DA63-11024A DA67-10227F DA67-10228A DA66-10104A DA71-20145A 17-8 17-9 17-10 17-11 17-12 18 18-1 18-2 18-3 Samsung Electronics DESCRIPTION SEAL DUCT, AIR GEARD MOTOR GEARD MOTOR WASHER BLADE-AIR GUIDE GROMMET MOTOR BLADE CONNECTING COVER DUCT, FR CASE-VEG ASSY CASE VEG ROLLER-FRE FIXER ROLLER SPECIFICATIONS PVC-FOAM AC220V~240V AC110V~127V ID 04, T0.
10-3 Cabinet and Unit Compartment 36 Samsung Electronics
NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 CODE-NO DA90-10230P DA61-40115B DA61-10145D DA61-30127B DA59-50021A DA59-50033A DA59-50014A DA59-50015A DA34-10003P DA34-10003P DA34-10003W DA34-10003G DA35-10003H DA35-10003H DA35-10003L DA35-10003N DA63-10352A DA32-10105F DA65-20101A DA63-40234C DA34-10122D DA73-30102A DA60-10104B DA60-10110A DA62-20001C DA63-40171B DA67-30218P DA39-10123 6002-000216 DA71-60123F DA60-90101A DA61-40101C DA66-20112A DA60-1
NO 35 36 37 38 39 40 41 42 43 44 45 38 CODE-NO DA72-60019A 6002-000213 DA63-11029A DA67-10105G DA63-10212H DA41-20146A DA41-20105F DA41-20146B DA41-20105G DA61-10205A DA63-10920G DA63-50145A DA61-10146C DA63-50146A ITEM SEAL PAM ABSORB SCREW TAPPING COVER LEG, FRONT CASE CONTROL BASE COVER-PCB PANEL ASSY-MAIN PCB ASSY-MAIN PCB ASSY-MAIN PCB ASSY-MAIN PCB HINGE-UPP COVER-HINGE UPP SHIM-HINGE UPP HINGE-MID ASSY SHIM-HINGE, LOW SPECIFICATIONS T10, W170, L170 TH 4X12FR, FZY PP PP-VO PP SR-606(8)EV SR-606(8
10-4 Door Parts Samsung Electronics 39
NO CODE-NO DESCRIPTION 1 (1)(2)(3)(4) DA91-10258L, M, N, P ASS’Y FOAM DOOR FRE ASS’Y FOAM DOOR FRE ASS’Y FOAM DOOR FRE ASS’Y FOAM DOOR FRE ASS’Y FOAM DOOR FRE ASS’Y FOAM DOOR FRE ASS’Y FOAM DOOR FRE(WITHDISPENSER) ASS’Y FOAM DOOR FRE ASS’Y FOAM DOOR FRE(WITHDISPENSER) ASS’Y FOAM DOOR FRE ASS’Y FOAM DOOR FRE(WITHDISPENSER) GASKET DOOR FRE ASS’Y GASKET DOOR FRE ASS’Y GUARD FRE GUARD VARIETY ,A GUARD VARIETY ,B GUARD BOTTLE GUARD REF LOW STOPPER MID GROMMET HINGE MID ASS’Y AUTO CLOSE STOPPER DOOR MID STOP
12. Packaging method ♦ Packaging specifications of door and inside of cab ♦ Completed packaging specification Tape:W50X100(2EA) Tape:W50XL150(1EA) PriamentTape:W50XL100 P.
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13 PCB Diagram circuit Samsung Electronics 55
13-2 Part list NO SPEC. CODE-NO TMP87PH40AN CST4.00MGWTF01 VSB-12TB JZ1 aFS-12V ULN2981A UDN2003A 135*197 FR-1 MC7812CT KIA7805PI AL L30 FH-51H 500mA/250V KA7533 RCN-10 SQ1201 CBE2220BA SKHV 10910A UZ 5.1B, 5.1V TA0.6PI/52mm KSR1005 LM324 75mH/10% PH-2S 3*8 1N4004 2200uF 35V 1000uF 35V 1uF 50V 470uF 25V 33uF 25V 104Z 3.9K-F 1/4W 1.
NO PART SPEC. CODE-NO Q’TY UNIT 37 R-CARBON 10K-J 1/4W 41018-227-103 16 38 39 40 41 42 43 44 45 46 47 48 49 50 51 12K-J 1/4W 47K-J 1/4W 4.
4. Electric Diagram 1.
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15. Main components specifications 1) REGULATOR 3-TERMINAL 1A POSITIVE VOLTAGE GRGULATORS The MC78XX/MC78XXA series of three-terminal positive regulators are available in the TO-220 package and with several fixed output voltaes, making it useful in a wide range of applicationes. These regulaators can provide local oncard regulation, eliminating the distribution problems assciated with single point regulation.
2) REGULATOR(MC7812C) ELECTRICAL CHARACTERISTICS MC7812 (Refer to test circuit, T min < Ti < T max, Vi = 500mA, Vi = 19V, Ci = 0.33µF, Co = 1.0µFunless otherwise specified) MC7805C Characteristic Symbol Test Conditions Typ Max 11.5 12 12.5 11.4 12 12.6 V i = 14.5V to 30V 10 240 Vi = 16V to 22V 3.0 120 Io = 5.0mA to 1.5V 12 240 Io = 250mA to 750mA 4.0 120 Ti = 25°C Output Voltage Unit Min 5.0mA≤Io≤1.0A, P≤15W Vo Vin = 14.5V to 27V V V i = 15.
MC 7805 AC(T) ELECTRICAL CHARACTERISTICS MC7805 (Refer to test circuit, Tmin < Ti < Tmax, Io = 500mA, Vi = 10V, Ci = 0.33ßfi, unless otherwise specified) MC7805C Characteristic Symbol Test Conditions Ti = 25°C Output Voltage Unit Min Typ Max 4.8 5.0 5.2 4.75 5.0 5.25 5.0mA ≤ Io ≤ 1.0A, Po ≤ 15W Vo V i = 7V to 20V V V i = 8V to 20V Line Regulation Load Regulation Quiescent Current Quiescent Current Change ∆Vo Ti = 25°C ∆Vo Ti = 25°C Id ∆‚Id V i = 7V to 25V 5.
HIGH-VOLTAGE, HIGH-CURRENT SOURCE DRIVERS Series UDS2980H and UDS2980R hermetically sealed source drivers link standard low-power digital logic and relays, solenoids, magnetic print hammers, stepping motors, LEDs, and lamps in applications requiring separate logic and load grounds, load supply voltages to +80V, and load currents to 500 mA. Types UDS2981H/R and UDS2983H/R are intended for use with 5v logic systems(TTL, Schottky TTL. DTL and 5V CMOS).
ELECTRICAL CHARACTERISTICS from -55°c to +125°c (unless otherwise specified). Applicable Chracteristic Symbol Devices Maximum Output Leakage Current ICEX UDS2981/82 UDS2981/84 Maximum Collector-Emitter Saturain Voltage VCE(SAT) Fig. Limit VIN = 0.25 V, VS = 50 V 1 200 µA VIN = 0.25V, VS = 80 V 1 200 µA VIN = 2.4 V, IOUT = -100 mA 2 2.0 V VIN = 2.4 V, IOUT = -200 mA 2 2.1 V +25˚C VIN = 2.4 V, IOUT = -350 mA 2 2.0 V +125˚C VIN = 2.4 V, IOUT = -100 mA 2 1.8 V VIN = 2.
NPN EPITAXIAL SILICON TRANSISTOR KSR1005 SWITCHING APPLICATION (Bias Resistor Built In) TO-92 •Switching Circuit, Inverter, Interface circuit Driver circuit. •Built in bias Resistor (R,=4.
