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Vishay PLZ12B-HG3_A/H
Vishay

PLZ12B-HG3_A/H Zener Diode, 12 V, 500 mW, AEC-Q101, DO-219AC

MPNPLZ12B-HG3_A/H
End of Life

Vishay Automotive AEC-Q101 PLZ series, PLZ12B-HG3_A/H, Zener Diode 12 V, 500 mW, ±3% Tolerance, Surface Mount DO-219AC (microSMF), 150°C Operating Temperature.

$0.37Ref. price · indicative, final on quote
PLZ12B-HG3_A/H datasheet
PackagingDO-219AC
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

PLZ12B-HG3_A/H Technical Specifications
ParameterValue
SeriesAutomotive, AEC-Q101, PLZ
Mounting typeSurface Mount
Voltage - zener (Nom)12 V
Voltage - forward (Vf) (Max) @ if900 mV @ 10 mA
Current - reverse leakage @ vr200 nA @ 9 V
Power - max500 mW
Operating temperature150°C
PackageTape & Reel (TR); Cut Tape (CT)
Tolerance±3%
CaseDO-219AC
Impedance (Max)12 Ohms

Product details

12 V clamp for automotive rails

The PLZ12B-HG3_A/H is a 12 V zener diode from Vishay's PLZ series, qualified to AEC-Q101 for automotive applications. It delivers a nominal zener voltage of 12 V with ±3% tolerance, rated for 500 mW continuous power dissipation in the DO-219AC (microSMF) surface-mount package.

What the 500 mW rating means for your board

At 12 V nominal, 500 mW translates to roughly 42 mA continuous zener current before hitting the thermal ceiling at 25°C ambient. In a 105°C under-hood environment, the allowable dissipation drops to about 60% of the 500 mW rating, so budget the clamp current accordingly.

Frequently asked questions

What is the closest pin-compatible alternative to PLZ12B-HG3_A/H?

No official cross-reference or second-source alternate is listed in the available records. The Vishay PLZ series includes other voltage options in the same DO-219AC package, but a direct 12 V ±3% replacement is not confirmed.