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Microchip Technology 1N6043A/TR — Circuit Protection

1N6043A/TR Zener TVS Diode – 1500 W, 12 V Standoff, DO-13

MPN1N6043A/TR
Active

Microchip Technology 1N6043A/TR, Zener TVS diode, bidirectional, 1500 W peak pulse power, 12 V reverse standoff, 14.3 V breakdown min, 21.2 V clamping, DO-13 through-hole package, Tape & Reel.

$20.7001Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1N6043A/TR specifications
ParameterValue
TypeZener
MountingThrough Hole
Voltage - breakdown14.3V
Voltage - clamping (Max) @ ipp21.2V
Voltage - reverse standoff12V
Current - peak pulse (10/1000μs)71A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C ~ 175°C (TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-13
Bidirectional channels1

Product details

Transient suppressor for 12 V rails

Breakdown voltage is guaranteed at 14.3 V minimum, with clamping at 21.2 V maximum at the 71 A peak pulse current. The 12 V reverse standoff voltage means the part does not conduct at normal rail levels, only during an overvoltage event.

Junction temperature and package

The DO-13 through-hole package (supplier device package DO-13) is a hermetic metal can suited for high-reliability and long-life applications. The Tape & Reel (TR) suffix indicates delivery on reel for automated assembly, though the through-hole package is hand-inserted or wave-soldered.

Active production, sourced per RFQ

The DO-13 package is a legacy footprint; verify board clearance and lead forming before committing. No AEC-Q qualification is cited, so this part is not formally automotive-grade.

Frequently asked questions

Can 1N6043A/TR be used for 24 V systems?

No. The reverse standoff is 12 V and breakdown starts at 14.3 V. A 24 V rail would keep the diode in continuous breakdown. For 24 V buses, select a TVS with standoff voltage above 24 V.