BUL743

Manufacturer Part NumberBUL743
DescriptionTRANSISTOR NPN 500V 12A TO-220
ManufacturerSTMicroelectronics
BUL743 datasheet
 


Specifications of BUL743

Transistor TypeNPNCurrent - Collector (ic) (max)12A
Voltage - Collector Emitter Breakdown (max)500VVce Saturation (max) @ Ib, Ic1.5V @ 2.5A, 10A
Current - Collector Cutoff (max)250µADc Current Gain (hfe) (min) @ Ic, Vce24 @ 2A, 3V
Power - Max100WMounting TypeThrough Hole
Package / CaseTO-220Lead Free Status / RoHS StatusLead free / RoHS Compliant
Frequency - Transition-  
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Features
Low spread of dynamic parameters
High voltage capability
Minimum lot-to-lot spread for reliable operation
Very high switching speed
Applications
Electronic ballast for fluorescent lighting up to
256 W (8 x 32 W)
Switch mode power supplies
Description
The device is manufactured using the diffused
collector in planar technology adopting new and
enhanced high voltage structure. It has an
intrinsic ruggedness which enables the transistor
to withstand an high collector current level during
breakdown condition, without using the transil
protection usually necessary in typical converters
for lamp ballast.
Table 1.
Device summary
Order code
Marking
BUL743
BUL743
May 2009
High voltage fast-switching
NPN power transistor
Figure 1.
Internal schematic diagram
Package
TO-220
Doc ID 15263 Rev 3
BUL743
3
2
1
TO-220
Packaging
Tube
1/10
www.st.com
10

BUL743 Summary of contents

  • Page 1

    ... Table 1. Device summary Order code Marking BUL743 BUL743 May 2009 High voltage fast-switching NPN power transistor Figure 1. Internal schematic diagram Package TO-220 Doc ID 15263 Rev 3 BUL743 TO-220 Packaging Tube 1/10 www.st.com 10 ...

  • Page 2

    Electrical ratings Table 2. Absolute maximum ratings Symbol V Collector-emitter voltage (V CES V Collector-emitter voltage (I CEO V Emitter-base voltage (I EBO I Collector current C I Collector peak current ( Base current B I Base ...

  • Page 3

    Electrical characteristics ( °C unless otherwise specified) case Table 4. Electrical characteristics Symbol Collector cut-off current I CES ( Collector cut-off current I CEO ( Emitter base breakdown V (BR)EBO voltage ...

  • Page 4

    Electrical characteristics (curves) Figure 2. Safe operating area Figure 4. DC current gain (V Figure 6. Collector-emitter saturation voltage 4/10 Figure Figure 5. CE Figure 7. Doc ID 15263 Rev 3 Derating curve DC current ...

  • Page 5

    Figure 8. Output characteristics Figure 10. Resistive load switching time (on) Figure 9. Reverse biased safe operating area Figure 11. Resistive load switching time (off) Doc ID 15263 Rev 3 5/10 ...

  • Page 6

    Test circuits Figure 12. Energy rating test circuit Figure 13. Resistive load switching test circuit 1. Fast electronic switch 2. Non-inductive resistor 6/10 Doc ID 15263 Rev 3 ...

  • Page 7

    Package mechanical data 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. ® ...

  • Page 8

    Dim L20 L30 ∅P Q 8/10 TO-220 mechanical data mm Min Typ Max 4.40 4.60 0.61 0.88 1.14 1.70 0.48 0.70 15.25 15.75 1.27 10 10.40 ...

  • Page 9

    Revision history Table 5. Document revision history Date Revision 09-Dec-2008 20-Mar-2009 25-May-2009 1 First release Added Section 2.1Section 2.1: Electrical characteristics (curves page 4 3 Document status promoted from preliminary data to datasheet Doc ID 15263 Rev ...

  • Page 10

    ... 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. ...