Skip to main content
Taiwan Semiconductor Corporation 1.5KE9.1CA B0G — Circuit Protection

1.5KE9.1CA B0G TVS Diode, 1500W, 7.78V Standoff, DO-201

MPN1.5KE9.1CA B0G
Active

Taiwan Semiconductor Corporation 1.5KE series Zener TVS diode, bidirectional, 1500W peak pulse power, 7.78V reverse standoff, 13.4V clamp, DO-201AA axial, bulk.

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

Specifications

1.5KE9.1CA B0G specifications
ParameterValue
TypeZener
Series1.5KE
MountingThrough Hole
Voltage - breakdown8.65V
Voltage - clamping (Max) @ ipp13.4V
Voltage - reverse standoff7.78V
Current - peak pulse (10/1000μs)117A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~175°C(TJ)
PackageBulk
ApplicationsGeneral Purpose
CaseDO-201AA, DO-27, Axial
Bidirectional channels1

Product details

1.5 kW bidirectional transient suppressor

The 1.5KE9.1CA B0G: The single bidirectional channel replaces two unidirectional devices in antiparallel, saving board space and reducing part count on AC-coupled signal lines or power rails that see both positive and negative surges.

Clamp voltage and pulse current at 10/1000 µs

The 8.65 V minimum breakdown voltage gives a tight guard band — the device starts conducting well before the protected node sees damaging overvoltage. The 1500 W rating is derated linearly above 25°C; at 175°C the peak pulse capability drops to roughly 25% of the 25°C value, so thermal margin matters in high-ambient designs.

DO-201 axial package and through-hole mounting

Housed in the DO-201AA (DO-27) axial-lead package, the 1.5KE9.1CA B0G is a through-hole part suited for point-to-point wiring, terminal blocks, or PCB mounting with 0.040-inch diameter leads. The axial form factor allows it to be soldered directly into a board or wired as a free-hanging component in a panel harness. Supplied in bulk packaging, it is a practical choice for manual assembly or low-volume production runs where tape-and-reel feed is unnecessary.

Active production — sourcing posture

The part carries no known PCN activity; date codes are fresh production.

Frequently asked questions

What package does 1.5KE9.1CA B0G come in?

It is supplied in a DO-201AA (DO-27) axial-lead through-hole package, in bulk packaging.