BD435G.
Transistor, NPN, 32 V, 4 A, 150 DEG C, 36 W, TO-225, 3 MHz
- Manufacturer: ONSEMI
- Product type: Single Bipolar Junction Transistors - BJT
- SVHC: No SVHC (15-Jan-2018)
- No. of Pins: 3Pins
- Product Range: -
- Qualification: -
- Power Dissipation: 36W
- Transistor Mounting: Through Hole
- Transistor Polarity: NPN
- Transition Frequency: 3MHz
- Transistor Case Style: TO-225
- DC Current Gain hFE Min: 85hFE
- Operating Temperature Max: 150°C
- Continuous Collector Current: 4A
- Collector Emitter Voltage Max: 32V
| Delivery and price | |
|---|---|
| Units per pack | 1000 |
| Price | 0.296 € |
| Current stock | 10+ |
| Lead time | 30 days |
## BD435G, BD437G, BD439G, BD441G ## Plastic Medium-Power Silicon NPN Transistors This series of plastic, medium−power silicon NPN transistors can be used for amplifier and switching applications. ## **Features** - Complementary Types are BD438 and BD442 - These Devices are Pb−Free and are RoHS Compliant* ## **http://onsemi.com** ## **4.0 AMPERES POWER TRANSISTORS NPN SILICON** **MAXIMUM RATINGS** COLLECTOR 2, 4 **Rating Symbol Value Unit** Collector−Emitter Voltage VCEO Vdc BASE 3 BD435G 32 BD437G 45 BD439G 60 BD441G 80 EMITTER 1 Collector−Base Voltage VCBO Vdc BD435G 32 BD437G 45 BD439G 60 BD441G 80 **TO−225** Emitter−Base Voltage VEBO 5.0 Vdc **CASE 77−09 STYLE 1** Collector Current IC 4.0 Adc Base Current IB 1.0 Adc 1 2 3 Total Device Dissipation PD @ TDerate above 25C = 25 ° C ° C 28836 W/W ° C **MARKING DIAGRAM** Operating and Storage Junction TJ, Tstg –55 to +150 ° C Temperature Range YWW ~~a 6~~ BD4xxG Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. Y = Year WW = Work Week **THERMAL CHARACTERISTICS** BD4xx = Device Code **Characteristic Symbol Max Unit** xx = 35, 37, 37T, 39, 41 ° G = Pb−Free Package |**THERMAL CHARACTERISTICS**|||| |---|---|---|---| |**Characteristic**|**Symbol**|**Max**|**Unit**| |Thermal Resistance, Junction−to−Case|R JC|3.5|°C/W| **ORDERING INFORMATION Device Package Shipping** BD435G TO−225 500 Units/Box (Pb−Free) BD437G TO−225 500 Units/Box (Pb−Free) BD437TG TO−225 50 Units/Rail (Pb−Free) BD439G TO−225 500 Units/Box (Pb−Free) *For additional information on our Pb−Free strategy and soldering details, please BD441G TO−225 500 Units/Box download the ON Semiconductor Soldering and Mounting Techniques (Pb−Free) Reference Manual, SOLDERRM/D. ~~ab~~ Publication Order Number: **1** © Semiconductor Components Industries, LLC, 2013 **December, 2013 − Rev. 17** **BD437/D** **BD435G, BD437G, BD439G, BD441G** |**ELECTRICAL CHARACTERISTICS**(TC= 25°C unless otherwise noted)|**ELECTRICAL CHARACTERISTICS**(TC= 25°C unless otherwise noted)|**ELECTRICAL CHARACTERISTICS**(TC= 25°C unless otherwise noted)|||| |---|---|---|---|---|---| |**Characteristic**|**Symbol**|**Min**|**Typ**|**Max**|**Unit**| |Collector−Emitter Breakdown Voltage<br>(IC= 100 mA, IB= 0)<br>BD435G<br>BD437G<br>BD439G<br>BD441G|V(BR)CEO|32<br>45<br>60<br>80|−<br>−<br>−<br>−|−<br>−<br>−<br>−|Vdc| |Collector−Base Breakdown Voltage<br>(IC= 100�A, IB= 0)<br>BD435G<br>BD437G<br>BD439G<br>BD441G|V(BR)CBO|32<br>45<br>60<br>80|−<br>−<br>−<br>−|−<br>−<br>−<br>−|Vdc| |Emitter−Base Breakdown Voltage<br>(IE= 100�A, IC= 0)|V(BR)EBO|5.0|−|−|Vdc| |Collector Cutoff Current<br>(VCB= 32 V, IE= 0)<br>BD435G<br>(VCB= 45 V, IE= 0)<br>BD437G<br>(VCB= 60 V, IE= 0)<br>BD439G<br>(VCB= 80 V, IE= 0)<br>BD441G|ICBO|−<br>−<br>−<br>−|−<br>−<br>−<br>−|0.1<br>0.1<br>0.1<br>0.1|mAdc| |Emitter Cutoff Current<br>(VEB= 5.0 V)|IEBO|−|−|1.0|mAdc| |DC Current Gain<br>(IC= 10 mA, VCE= 5.0 V)<br>BD435G<br>BD437G<br>BD439G<br>BD441G|hFE|40<br>30<br>20<br>15|−<br>−<br>−<br>−|−<br>−<br>−<br>−|−| |DC Current Gain<br>(IC= 500 mA, VCE= 1.0 V)<br>BD435G<br>BD437G<br>BD439G, BD441G|hFE|85<br>85<br>40|−<br>−<br>−|475<br>375<br>475|−| |DC Current Gain<br>(IC= 2.0 A, VCE= 1.0 V)<br>BD435G<br>BD437G<br>BD439G<br>BD441G|hFE|50<br>40<br>25<br>15|−<br>−<br>−<br>−|−<br>−<br>−<br>−|−| |Collector Saturation Voltage<br>(IC= 2.0 A, IB= 0.2 V)<br>BD435G<br>(IC= 3.0 A, IB= 0.3 A)<br>BD437G, BD439G, BD441G|VCE(sat)|−<br>−|−<br>−|0.5<br>0.8|Vdc| |Base−Emitter On Voltage<br>(IC= 2.0 A, VCE= 1.0 V)|VBE(on)|−|−|1.1|Vdc| |Current−Gain − Bandwidth Product<br>(VCE= 1.0 V, IC= 250 mA, f = 1.0 MHz)|fT|3.0|−|−|MHz| Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. **http://onsemi.com 2** **BD435G, BD437G, BD439G, BD441G** **==> picture [484 x 188] intentionally omitted <==** **----- Start of picture text -----**<br> 2.0<br>1.6<br>IC = 10 A 100 mA 1.0 A 3.0 A<br>1.2<br>0.8<br>TJ = 25 ° C<br>0.4<br>00.05 0.070.1 0.2 0.3 0.5 0.7 1.0 2.0 3.0 5.0 7.0 10 20 30 50 70 100 200 300 500<br>IB, BASE CURRENT (mA)<br>VCE, COLLECTOR−EMITTER VOLTAGE (VOLTS)<br>**----- End of picture text -----**<br> **Figure 1. Collector Saturation Region** **==> picture [490 x 392] intentionally omitted <==** **----- Start of picture text -----**<br> 200<br>180<br>BD433, 435, 437<br>160<br>140<br>120 BD439, 441<br>100<br>80<br>60<br>40<br>20<br>0<br>0.01 0.02 0.03 0.05 0.1 0.2 0.3 0.5 1 2 3 5<br>IC, COLLECTOR CURRENT (AMP)<br>Figure 2. Current Gain<br>2.0 10<br>TJ = 25 ° C<br>1.6 4.0 5 ms<br>1.2 TJ = 150 ° C dc<br>1.0 SECONDARY BREAKDOWN<br>0.8 VBE(sat) @ IC/IB = 10 THERMAL LIMIT TC = 25°C<br>VBE @ VCE = 2.0 V 0.5 BONDING WIRE LIMIT<br>CURVES APPLY BELOW RATED VCEO<br>0.6 BD437<br>VCE(sat) @ IC/IB = 10 BD439<br>BD441<br>0 0.1<br>0.0050.01 0.02 0.030.05 0.1 0.20.3 0.5 1.0 2.0 3.0 4.0 1.0 2.0 5.0 10 20 50 100<br>IC, COLLECTOR CURRENT (AMP) VCE, COLLECTOR−EMITTER VOLTAGE (VOLTS)<br>hFE, CURRENT GAIN (NORMALIZED)<br>VOLTAGE (VOLTS)<br>IC, COLLECTOR CURRENT (AMP)<br>**----- End of picture text -----**<br> **Figure 3. “On” Voltage** **Figure 4. Active Region Safe Operating Area** **http://onsemi.com** **3** MECHANICAL CASE OUTLINE **PACKAGE DIMENSIONS** **==> picture [472 x 503] intentionally omitted <==** **----- Start of picture text -----**<br> TO−225<br>CASE 77−09<br>4 ISSUE AD<br>DATE 25 MAR 2015<br>1 3<br>2 3 2 1<br>FRONT VIEW BACK VIEW<br>SCALE 1:1<br>E NOTES:<br>1. DIMENSIONING AND TOLERANCING PER<br>A1 ASME Y14.5M, 1994.<br>2. CONTROLLING DIMENSION: MILLIMETERS.<br>Q A 3. NUMBER AND SHAPE OF LUGS OPTIONAL.<br>a<br>PIN 4 MILLIMETERS<br>BACKSIDE TAB DIM MIN MAX<br>A 2.40 3.00<br>A1 1.00 1.50<br>b 0.60 0.90<br>D b2 0.51 0.88<br>P c 0.39 0.63<br>D 10.60 11.10<br>E 7.40 7.80<br>1 2 3<br>a t e 2.04 2.54<br>L 14.50 16.63<br>Jt L1 1.27 2.54<br>P 2.90 3.30<br>L1 Q 3.80 4.20<br>GENERIC<br>L<br>MARKING DIAGRAM*<br>YWW<br>XX<br>XXXXXG<br>2X b2 Y = Year<br>WW = Work Week<br>2X e XXXXX = Device Code<br>b c G = Pb−Free Package<br>*This information is generic. Please refer to<br>FRONT VIEW SIDE VIEW<br>device data sheet for actual part marking.<br>Pb−Free indicator, “G” or microdot “ ”,<br>may or may not be present.<br>STYLE 1: STYLE 2: STYLE 3: STYLE 4: STYLE 5:<br>PIN 1. EMITTER PIN 1. CATHODE PIN 1. BASE PIN 1. ANODE 1 PIN 1. MT 1<br>2., 4. COLLECTOR 2., 4. ANODE 2., 4. COLLECTOR 2., 4. ANODE 2 2., 4. MT 2<br>3. BASE 3. GATE 3. EMITTER 3. GATE 3. GATE<br>STYLE 6: STYLE 7: STYLE 8: STYLE 9: STYLE 10:<br>PIN 1. CATHODE PIN 1. MT 1 PIN 1. SOURCE PIN 1. GATE PIN 1. SOURCE<br>2., 4. GATE 2., 4. GATE 2., 4. GATE 2., 4. DRAIN 2., 4. DRAIN<br>3. ANODE 3. MT 2 3. DRAIN 3. SOURCE 3. GATE<br>**----- End of picture text -----**<br> DATE 25 MAR 2015 Electronic versions are uncontrolled except when accessed directly from the Document Repository. **DOCUMENT NUMBER: 98ASB42049B** Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red. **DESCRIPTION: TO−225 PAGE 1 OF 1** ~~re~~ ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor reserves the right to make changes without further notice to any products herein. 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Updated at March 22, 2026
onsemi is a premier global supplier of intelligent power and sensing technologies, driving disruptive innovations across the automotive, industrial, and cloud infrastructure markets. Recognized for their commitment to sustainability and reliable supply chains, the company accelerates advancements in vehicle electrification, industrial automation, and 5G networks by solving the industry's most complex design challenges. At the core of their portfolio is an industry-leading selection of discrete semiconductors. This extensive range features thousands of high-performance bipolar transistors, single and dual MOSFETs, and a comprehensive array of diodes, including Zener, Schottky, and fast-recovery rectifiers. Engineered for superior thermal performance and energy efficiency, these foundational components are critical for demanding power conversion, switching, and signal conditioning applications. Beyond essential discretes, onsemi provides a robust suite of advanced power management and circuit protection solutions. Their lineup includes intelligent power modules, single IGBTs, and transient voltage suppression (TVS) diodes designed to safeguard sensitive circuitry. Complimented by integrated passive filters, AC/DC LED driver ICs, and specialized sub-2.4GHz RF transceivers, onsemi equips engineers with the scalable, high-quality technologies needed to build a cleaner, smarter, and more connected world.
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