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| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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20 pcs
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20 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Collector Current (Maximum @ actual current-handling capability) | |
| Collector-Base Voltage (VCBO) | |
| Current | |
| DC Current Gain (hFE) (Min) @ Ic, Vce | |
| Emitter-Base Voltage (VEBO) | |
| Frequency | |
| Mounting Type | |
| Operating Temperature | |
| Power | |
| Supplier Device Package | |
| Tape & Reel | |
| Thermal Resistance - Junction to Case | |
| Transistor Type | |
| Vce Saturation (Max) @ Ib, Ic | |
| Voltage |
The 2N4918 is a PNP medium-power silicon transistor from ON Semiconductor, part of the 2N4918-2N4920 series. It is designed for general-purpose power switching and amplification in through-hole mounted applications.
This transistor features a maximum collector-emitter voltage (Vceo) of 40V, a continuous collector current of 1A (with a capability of up to 3A), and a maximum power dissipation of 30W at 25°C case temperature. It offers a DC current gain (hFE) of at least 30 at 500mA collector current, and a low saturation voltage of 600mV at 1A collector current.
The device is suitable for driver circuits, switching regulators, and amplifier output stages. Its complement NPN transistors (2N4921, 2N4922, 2N4923) allow for push-pull configurations. The TO-126 package provides good thermal performance with a junction-to-case thermal resistance of 4.16°C/W.
The 2N4918 is available in a through-hole TO-225AA / TO-126-3 package, with the supplier device package designated as TO-126. It is listed as RoHS3 compliant (unverified) and has an operating junction temperature range of -65°C to 150°C.
The maximum collector-emitter voltage (Vceo) is 40V, collector-base voltage (Vcbo) is 40V, and emitter-base voltage (Vebo) is 5V.
The 2N4918 is available in a through-hole TO-225AA / TO-126-3 package, with the supplier device package designated as TO-126.
The operating junction temperature range is -65°C to 150°C.
The part is listed as RoHS3 compliant, but this status is unverified. The datasheet mentions a Pb-Free option but does not explicitly state RoHS compliance.
The minimum DC current gain is 30 at Ic=500mA and Vce=1V.
The maximum collector-emitter saturation voltage is 600mV at Ib=100mA and Ic=1A.
The maximum power dissipation is 30W at 25°C case temperature.