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Taiwan Semiconductor Corporation 1.5SMC68CA R7G — Circuit Protection

1.5SMC68CA R7G TVS Diode, 1500W, 58.1V

MPN1.5SMC68CA R7G
Active

Taiwan Semiconductor Corporation 1.5SMC68CA R7G, 1500W unidirectional TVS diode, DO-214AB SMC, 58.1V reverse standoff, 64.6V min breakdown, 92V clamping, 17A peak pulse, -55°C to 150°C junction, tape & reel.

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMC68CA R7G specifications
ParameterValue
TypeZener
Series1.5SMC
MountingSurface Mount
Voltage - breakdown64.6V
Voltage - clamping (Max) @ ipp92V
Voltage - reverse standoff58.1V
Current - peak pulse (10/1000μs)17A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-214AB, SMC
Bidirectional channels1

Product details

1500W TVS diode in DO-214AB SMC

The 1.5SMC68CA R7G: The CA suffix designates the bidirectional variant — one bidirectional channel clamps both polarities of a transient surge. That clamping ceiling at 92V is the figure that protects downstream circuitry — a 12V rail sees roughly a 7.5× ratio from standoff to clamp, which is typical for this series.

Junction temperature range and rework profile

Delivered on tape and reel (TR), which suits high-volume pick-and-place lines. For rework, a hot-air gun at 350-380°C with flux preform will lift the body without disturbing adjacent components on a populated board.

Where the 1.5SMC family fits

General-purpose TVS diodes like the 1.5SMC68CA protect signal lines, low-power rails, and discrete FET gates from ESD and surge transients. This part is classified as not suitable for power-line protection (flags Power Line Protection: No) — for AC line duty the 1.5SMC series is not the right fit; look to the P6SMB or SMBJ families instead.

Frequently asked questions

What series does the 1.5SMC68CA R7G belong to, and how is it different from other 1.5SMC TVS diodes?

It belongs to the 1.5SMC series — a 1500W peak-pulse TVS family in the DO-214AB SMC package. The voltage rating is set by the base number 1.5SMC68, where 68 denotes the approximate standoff voltage in volts. Choosing between CA (bidirectional) and A (unidirectional) variants depends on whether the protected line is symmetric (AC, bidirectional signal) or DC-biased.

What is the 1.5SMC68CA R7G's listed type on the Circuit Protection line?

The device is classified as a Zener type, which in the TVS context means it operates as a Zener breakdown clamp — the bidirectional CA variant uses two Zener junctions back-to-back to clamp both polarities.