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Littelfuse Inc. 5.0SMDJ6.0AS — Circuit Protection

Littelfuse 5.0SMDJ6.0AS TVS Diode, 5kW, 6V standoff

MPN5.0SMDJ6.0AS
Active

Littelfuse Inc. 5.0SMDJxxS series, unidirectional Zener TVS diode, 5.0SMDJ6.0AS, 6V reverse standoff, 10.3V clamping, 485.4A peak pulse, DO-214AB SMC surface-mount package.

$1.5200Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5.0SMDJ6.0AS specifications
ParameterValue
TypeZener
Series5.0SMDJxxS
MountingSurface Mount
Voltage - breakdown6.67V
Voltage - clamping (Max) @ ipp10.3V
Voltage - reverse standoff6V
Current - peak pulse (10/1000μs)485.4A
Power - peak pulse5000W (5kW)
Power line protectionNo
Operating temperature-65°C ~ 150°C (TJ)
PackageTape & Reel (TR) Cut Tape (CT)
ApplicationsTelecom
CaseDO-214AB, SMC
Unidirectional channels1

Product details

Clamping performance — the numbers that protect the line

The 5.0SMDJ6.0AS: The standoff voltage of 6 V defines the working voltage the protected line sits at during normal operation — the TVS stays invisible until a transient pushes it above that threshold. 5000 W peak pulse power dissipation in the 10/1000 µs window tells you the device survives the classic telecom surge event — a 6 V working line drawing 485 A through the clamping impedance produces that 5 kW transient without degradation. Rate the line accordingly; the 150°C junction ceiling gives thermal headroom above most enclosed telecom cabinet profiles.

Package and telecom board integration

Tape-and-reel packaging suits high-volume pick-and-place assembly, while cut tape covers lower-run production spins. Telecom applications are the stated use case for this series — power-fed line cards, DSLAM inputs, and similar customer-premises equipment where 48 V or 60 V nominal rails often feed into lower-voltage ASIC domains. A 6 V standoff aligns with secondary protection zones on those rails.