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TIP31C / TIP32C / TIP41C / TIP42C / LM317T / IRF3205 TO-220 Power Transistor & Regulator IC (5-Pack)
TIP31C / TIP32C / TIP41C / TIP42C / LM317T / IRF3205 TO-220 Power Transistor & Regulator IC (5-Pack)
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TIP31C / TIP32C / TIP41C / TIP42C / LM317T / IRF3205 — TO-220 Power Components
A selection of essential TO-220 package power transistors and voltage regulator ICs covering NPN/PNP bipolar transistors, N-channel MOSFETs, and adjustable linear regulators. Each listing is a 5-pack of the same part — choose the specific component from the variant selector. All are new, original parts in the standard TO-220 through-hole package.
Component Variants & Key Specifications
| Part | Type | VCEO / VDS | IC / ID | Key Feature |
|---|---|---|---|---|
| TIP31C | NPN BJT | 100V | 3A | Complementary to TIP32C |
| TIP32C | PNP BJT | -100V | -3A | Complementary to TIP31C |
| TIP41C | NPN BJT | 100V | 6A | Higher current, complementary to TIP42C |
| TIP42C | PNP BJT | -100V | -6A | Complementary to TIP41C |
| LM317T | Adjustable Voltage Regulator | Input up to 40V | 1.5A | 1.25V–37V adjustable output |
| IRF3205 | N-Channel MOSFET | 55V | 110A | Ultra-low RDS(on) = 8mΩ |
Why Choose These TO-220 Components?
- Industry-standard parts — TIP3x/TIP4x and LM317T are universally available and well-documented
- TO-220 package — easy heatsink mounting for high-power dissipation
- Complementary pairs — TIP31C/TIP32C and TIP41C/TIP42C for push-pull amplifier stages
- IRF3205 ultra-low RDS(on) — 8mΩ for minimal conduction loss in high-current switching
- LM317T adjustable — set any output voltage from 1.25V to 37V with two resistors
- 5-pack value — enough for prototyping and small production runs
Typical Applications
- TIP31C/TIP32C — audio amplifier output stages, motor driver H-bridge, relay driver
- TIP41C/TIP42C — higher-current amplifier stages, power supply pass transistors
- LM317T — adjustable linear voltage regulator, battery charger, LED current source
- IRF3205 — high-current motor control, DC-DC converter switch, battery management
Compatible With
TIP31C/TIP32C are drop-in replacements for BD135/BD136, BD139/BD140 in many designs. LM317T is pin-compatible with LM338T (higher current version). IRF3205 is compatible with IRLB3034, IRFZ44N in many switching applications (verify VGS(th)).
FAQ
Q: Do TIP31C and TIP32C form a complementary pair?
A: Yes. TIP31C (NPN) and TIP32C (PNP) are complementary transistors with matched characteristics, ideal for push-pull amplifier output stages.
Q: What output voltage range does LM317T support?
A: LM317T adjusts from 1.25V to 37V using two external resistors. Output voltage = 1.25V × (1 + R2/R1).
Q: What is the maximum current for IRF3205?
A: 110A continuous drain current (with adequate heatsinking). RDS(on) = 8mΩ at VGS=10V.
Package Contents
- 5× Selected TO-220 Component (new, original)
