TIP122 5A 100V NPN Transistor for High-Current Applications
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TIP122 NPN Darlington Transistor – 5A 100V TO-220
The TIP122 is a classic NPN Darlington power transistor rated 5A continuous collector current at 100V Vceo in a TO-220 package. High DC current gain (β typically 1000+) from the integrated Darlington pair lets you switch high-current loads from logic-level base drive — perfect for relay drivers, solenoid drivers, motor control, audio output stages, and general-purpose power switching on miner PSU + control board sub-circuits.
Stocking part for repair shops + maker bench inventory. TO-220 leaded package suits both through-hole PCB work and heatsink-mounted designs.
Typical Use Cases
- Relay / solenoid driver — MCU GPIO → high-current coil load.
- DC motor speed control — PWM Darlington-driven motor stage.
- PSU repair — drop-in replacement on damaged control circuits.
- Audio power amplifier — low-cost class-AB output transistor.
TIP122 Specifications
| Specification | Detail |
|---|---|
| Item | TIP122 NPN Darlington power transistor |
| Type | NPN Darlington |
| Vceo | 100V |
| Ic | 5A continuous |
| hFE | 1000+ (typ.) |
| Package | TO-220 (3-lead, leaded) |
| Condition | Brand New |
FAQ — TIP122 Darlington Transistor
Q: TIP122 vs TIP120?
A: Same package + family. TIP120 = 60V variant, TIP122 = 100V variant. Choose by Vceo headroom required.
Q: PNP complement?
A: TIP127 is the PNP Darlington complement (100V / 5A) for push-pull or H-bridge stages.
Q: Bulk pricing?
A: Yes — email contact@lys-sz.com.
Related products
- 2SC5200 NPN Power Audio Transistor
- 2SA1943 PNP Power Audio Transistor
- BCX56 NPN Power Transistor
- JQC-3F-1C 12VDC Power Relay
Repair shops stocking TIP122 Darlington transistors? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouses.
Buying in bulk for a mining farm or repair shop?
Get dedicated B2B pricing on this part and across our full catalog — quote response within 24 hours, payment by T/T USD bank wire, and DDP delivery available for US & EU customers (and other lanes on request).
