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| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
17 pcs
|
17 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Collector Cutoff Current (ICBO) | |
| Collector-Base Breakdown Voltage (VCBO) | |
| Current | |
| DC Current Gain (hFE) (Min) @ Ic, Vce | |
| DC Current Gain (hFE) (Minimum @ IC=10 mA, VCE=5 V) | |
| DC Current Gain (hFE) (Minimum/Maximum @ Ic = 500 mA, Vce = 1 V) | |
| Emitter Cutoff Current (Iebo) | |
| Emitter-Base Breakdown Voltage (VEBO) | |
| Frequency | |
| Medical Grade | |
| Mounting Type | |
| Operating Temperature | |
| Power | |
| SVHC Present | |
| Standard Package Quantity | |
| Storage Temperature | |
| Supplier Device Package | |
| Tape & Reel | |
| Termination Style | |
| Thermal Resistance Junction-to-Case (RθJC) | |
| Transistor Type | |
| Vce Saturation (Max) @ Ib, Ic | |
| Voltage |
The BD438 is a PNP silicon medium power transistor from On Semiconductor (onsemi) designed for general-purpose amplifier and switching circuits. It features a collector-emitter breakdown voltage of 45V and a continuous collector current rating of 4A, with a total device dissipation of 36W when the case temperature is maintained at 25°C.
Electrical characteristics include a DC current gain (hFE) of 85 to 475 at 500 mA and 1V, ensuring consistent performance in linear applications. The collector-emitter saturation voltage is a maximum of 700 mV at 3A collector current, contributing to low on-state losses. Transition frequency is specified at 3 MHz, making it suited for low-frequency switching and amplification tasks.
The device is housed in a TO-225AA (TO-126-3) through-hole package, with an operating junction temperature range of -55°C to +150°C. It is available in Pb-Free and RoHS Compliant versions, supporting environmental compliance requirements in new designs or replacements.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.85 | $0.85 |
| 10+ | $0.60 | $0.60 |
| 100+ | $0.42 | $0.42 |
| 500+ | $0.32 | $0.32 |
| 1,000+ | $0.27 | $0.27 |
| 2,500+ | $0.24 | $0.24 |
| 6,000+ | $0.21 | $0.21 |
| 12,000+ | $0.19 | $0.19 |
| 30,000+ | $0.17 | $0.17 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The minimum collector-emitter breakdown voltage (VCEO) is 45V.
The maximum collector current (IC) is 4A.
The BD438 is available in a TO-225AA (TO-126-3) through-hole package.
The operating junction temperature range is -55°C to +150°C.
Yes, the BD438 is RoHS3 compliant and Pb-Free as stated in the datasheet.