2SD882T-P NPN Semiconductor Triode for Avalon Miner

2SD882T-P NPN Transistor (Silk H82P) | SOT-89 BJT for Avalon Miner Repair

The 2SD882T-P NPN bipolar transistor, marked with silk code "H82P", is a surface-mount NPN BJT in the SOT-89 package — used widely across Avalon miner hashboards and control boards as a low-power switching transistor in fan drive, LED indicator, and auxiliary-rail circuits. The part is part of the broader 2SD882 family but specifically the T-P / SOT-89 variant for high-density PCB layouts.

Built around the standard NPN epitaxial planar architecture, the 2SD882T-P offers a 30V collector-emitter breakdown voltage (Vceo), 3A continuous collector current, and 500mW power dissipation at room temperature. The SOT-89 footprint provides better thermal handling than SOT-23 thanks to the larger collector tab, making the part suitable for fan-drive and small motor-control applications where the transistor sees continuous current.

Where the 2SD882T-P Fits on Avalon Hardware

• Fan drive circuits on Avalon hashboards and control boards — switches the 12V fan supply.
• LED indicator drive — switches status LEDs from the controller MCU.
• Audio amplifier output stage — class-A or class-B small-signal amplification (general application).
• Voltage regulator pass element — series-pass transistor on auxiliary linear regulators.
• Power conversion auxiliary circuits — gate-drive boost or bias supply switching.

When to Replace a 2SD882T-P

• Fan on a hashboard or control board fails to spin up while 12V supply is present at the fan connector.
• Status LED stays off or stuck on regardless of MCU control.
• Multimeter diode-test shows no junction drop in either direction across the transistor.
• Visible physical damage — burned, cracked, or lifted from PCB.

2SD882T-P NPN Transistor Specifications

FAQ — 2SD882T-P NPN Transistor

Q: Is "H82P" the same as 2SD882T-P?
A: Yes — H82P is the SMD silk marking convention for the 2SD882T-P part. Different manufacturers (Rohm, Mospec, etc.) may use slightly different marking codes — always cross-check the datasheet pinout before substituting.

Q: Can I use 2SD882 (TO-92 leaded) as a substitute?
A: Electrically yes, mechanically no — the TO-92 version is the leaded through-hole package, and the SOT-89 footprint won't accept it. For repair on Avalon SMD boards, you need the T-P / SOT-89 variant.

Q: How do I test a SOT-89 NPN transistor in-circuit?
A: Use a multimeter in diode-test mode: probe Base → Emitter (should read 0.6-0.7V forward); Base → Collector (should also read 0.6-0.7V forward); Collector → Emitter (should read OL both ways). Any short or open indicates failure.

Q: What's the rework profile?
A: Standard SOT-89 SMD rework — flux pad, preheat 150°C, hot-air gun at 350°C with controlled airflow, lift with tweezers. Place fresh part with correct orientation (silk-marked side up) and reflow.

Q: Bulk pricing for repair benches?
A: Yes — email contact@lys-sz.com for tape-and-reel quantities.

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Avalon repair benches stocking 2SD882T-P transistors in volume? Email contact@lys-sz.com for bulk pricing and matched repair-kit options. Worldwide shipping from our Shenzhen warehouse.