SS8050 Plastic-Encapsulate Power Transistor NPN
KSH 5.00
In Stock
The SS8050 is a widely used NPN bipolar junction transistor (BJT) designed for generalpurpose switching and amplification applications [citation:8]. This mediumpower transistor is commonly available in both TO92 and SOT23 packages, making it suitable for throughhole and surfacemount designs [citation:7][citation:1].
| Parameter | Value |
|---|---|
| Transistor Type | NPN |
| Collector Current (IC) | 1.5A maximum |
| Collector-Emitter Voltage (VCEO) | 25V maximum |
| Collector-Base Voltage (VCBO) | 40V maximum |
| Emitter-Base Voltage (VEBO) | 5V maximum |
| DC Current Gain (hFE) | 85 to 400 (varies by rank) [citation:13] |
| Transition Frequency (fT) | 100MHz minimum [citation:6] |
| Power Dissipation | 300mW (SOT23) / 1W (TO92) |
| Operating Temperature | -55°C to +150°C [citation:13] |
| Package Options | TO92, SOT23, SOT-89 |
= hFE Classification Ranks (TO-92 Package) =
| Rank | hFE Range |
|---|---|
| B | 85-160 [citation:13] |
| C | 120-200 [citation:13] |
| D | 160-300 [citation:13] |
| D3 | 300-400 [citation:13] |
> For SOT23 package, hFE ranks are typically 120200, 200350, and 300400 [citation:6]
When viewing the flat side with leads pointing downward, the pinout from left to right is:
| Pin | Function |
|---|---|
| 1 | Emitter (E) [citation:7] |
| 2 | Base (B) [citation:7] |
| 3 | Collector (C) [citation:7] |
> Always verify pinout with the manufacturer's datasheet as variations may exist
+High Collector Current - 1.5A for driving relays, motors, and LEDs
+Low Saturation Voltage - VCE(sat) of 0.5V at 800mA for efficient switching [citation:6]
+Fast Switching 100MHz transition frequency for highspeed applications
+Complementary PNP Pair Use with SS8550 for pushpull circuits [citation:12]
√ Direct substitutes include S8050, 2N3904, BC547, MPS650 [citation:4]
√ Complementary pair: SS8550 PNP transistor
√ Widely available and well-documented
Transistor not switching:
Excessive heat:
