Datasheet

ManualsBrandsST ManualsDiodesRectifier Diode 1A 1.2kV DO-214AC, SMA

October 2009 Doc ID 9343 Rev 5 1/8

STTH112

High voltage ultrafast rectifier

Features

■ Low forwarded voltage drop

■ High reliability

■ High surge current capability

■ Soft switching for reduced EMI disturbances

■ Planar technology

Description

The STTH112, which is using ST ultrafast high

voltage planar technology, is specially suited for

free-wheeling, clamping, snubbering,

demagnetization in power supplies and other

power switching applications

Table 1. Device summary

Symbol Value

F(AV)

1 A

RRM

1200 V

j (max)

175 °C

F (max)

1.65 V

DO-41

STTH112

SMA

STTH112A

SMB

STTH112U

www.st.com

Summary of content (8 pages)

PAGE 1
STTH112 High voltage ultrafast rectifier Features ■ Low forwarded voltage drop ■ High reliability ■ High surge current capability ■ Soft switching for reduced EMI disturbances ■ Planar technology DO-41 STTH112 Description The STTH112, which is using ST ultrafast high voltage planar technology, is specially suited for free-wheeling, clamping, snubbering, demagnetization in power supplies and other power switching applications SMA STTH112A Table 1.
PAGE 2
Electrical characteristics 1 STTH112 Electrical characteristics Absolute ratings (limiting values) Symbol Parameter Value Unit VRRM Repetitive peak reverse voltage 1200 V V(RMS) Voltage rms 850 V 1 A Tl = 85°C IF(AV) Average forward current δ =0.5 DO-41 Tl = 115°C δ =0.5 SMA Tl = 125°C δ =0.5 SMB DO-41 IFSM Forward surge current t = 8.3 ms 20 SMA A 18 SMB Tstg Tj Table 2. Storage temperature range Table 3. Symbol IR VF Table 4.
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STTH112 Figure 1. Electrical characteristics Conduction losses versus average Figure 2. current Forward voltage drop versus forward current IFM(A) P(W) 2.2 2.0 δ = 0.05 δ = 0.1 100.0 δ = 0.2 δ = 0.5 Tj=125°C (maximum values) 1.8 1.6 δ=1 1.4 Tj=125°C (typical values) 10.0 1.2 Tj=25°C (maximum values) 1.0 0.8 1.0 0.6 T 0.4 IF(AV)(A) 0.2 δ=tp/T 0.0 0.0 0.1 Figure 3. 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 VFM(V) tp 0.1 1.0 1.1 1.2 0.0 0.
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Electrical characteristics Figure 7. STTH112 Thermal resistance junction to ambient versus copper surface under each lead (epoxy printed circuit board FR4, copper thickness: 35µm) (SMA) Rth(j-a)(°C/W) 140 130 120 110 100 90 80 SMA 70 60 50 40 30 20 S(cm²) 10 0 0.0 4/8 0.5 1.0 1.5 2.0 2.5 3.0 Doc ID 9343 Rev 5 3.5 4.0 4.5 5.
PAGE 5
STTH112 2 Package information Package information ● Epoxy meets UL 94, V0 ● Band indicates cathode ● Bending method (DO-41): see Application note AN1471 In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Table 5. SMA dimensions Dimensions Ref.
PAGE 6
Package information Table 6. STTH112 SMB dimensions Dimensions Ref. Millimeters Inches E1 D E A1 A2 C L Figure 9. b Min. Max. Min. Max. A1 1.90 2.45 0.075 0.096 A2 0.05 0.20 0.002 0.008 b 1.95 2.20 0.077 0.087 c 0.15 0.40 0.006 0.016 D 3.30 3.95 0.130 0.156 E 5.10 5.60 0.201 0.220 E1 4.05 4.60 0.159 0.181 L 0.75 1.50 0.030 0.059 Footprint (dimensions in mm) 1.62 2.60 1.62 2.18 5.84 Table 7. DO-41 (plastic) dimensions Dimensions Ref.
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STTH112 3 Ordering information Ordering information Table 8. 4 Ordering information Order code Marking Package Weight Base qty Delivery Mode STTH112 STTH112 DO-41 0.34 g 2000 Ammopack STTH112A H12 SMA 0.068 g 5000 Tape and reel STTH112U U12 SMB 0.11 g 2500 Tape and reel STTH112RL STTH112 DO-41 0.34 g 5000 Tape and reel Revision history Table 9. Document revision history Date Revision Changes Jan-2003 2 Initial release.
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STTH112 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale.