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Vishay General Semiconductor - Diodes Division 1.5SMC6.8CA-E3/9AT — Circuit Protection

Vishay 1.5SMC6.8CA-E3/9AT TVS Diode, 5.8V Standoff, 1.5kW

MPN1.5SMC6.8CA-E3/9AT
Active

Vishay General Semiconductor 1.5SMC TransZorb® bidirectional TVS diode, 5.8V reverse standoff, 6.45V minimum breakdown, 10.5V maximum clamping, 143A peak pulse (10/1000µs), 1500W peak pulse power, DO-214AB surface-mount, Tape & Reel.

$0.2462Ref. price · indicative, final on quote
Vishay General Semiconductor - Diodes Division 1.5SMC6.8CA-E3/9AT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMC6.8CA-E3/9AT specifications
ParameterValue
TypeZener
Series1.5SMC, TransZorb®
MountingSurface Mount
Voltage - breakdown6.45V
Voltage - clamping (Max) @ ipp10.5V
Voltage - reverse standoff5.8V
Current - peak pulse (10/1000μs)143A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-214AB, SMC
Bidirectional channels1

Product details

What the 1.5SMC6.8CA clamping chain means for your board

The 1.5SMC6.8CA-E3/9AT: Rated 1500 W peak pulse power across the 1.5SMC series — the CA bidirectional polarity covers AC rails or lines that can swing either polarity during a surge event.

DO-214AB package and SMT assembly notes

The DO-214AB (SMC) package is the standard JEDEC SMC footprint — the cathode bar marks polarity on the unidirectional orientation; the CA variant is bidirectional and has no polarity stripe. Supplied in Tape & Reel (/9AT suffix) — compatible with standard SMT pick-and-place lines.

Frequently asked questions

How do I select the right standoff voltage for a TVS on my rail?

Pick a standoff voltage above the maximum working voltage of the line — the 5.8 V standoff on this part suits 5 V nominal rails with sufficient margin for normal operating variation, leaving the 6.45 V breakdown as the first-conducting threshold under a surge.

What is the difference between a unidirectional and bidirectional TVS — does the CA suffix matter for my AC line?

The CA suffix designates the bidirectional polarity variant. It clamps both positive and negative transients on the same two terminals, making it the correct choice for AC rails or any signal line that can ring below ground during a surge event.