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Littelfuse Inc. 1.5KE220C-B — Circuit Protection

Littelfuse 1.5KE220C-B TVS Diode, 1.5kW, 185V, DO-201

MPN1.5KE220C-B
Obsolete

Littelfuse 1.5KE series bidirectional Zener TVS diode, 1.5KE220C-B, 1500W peak pulse power, 185V reverse standoff, DO-201AA axial through-hole, bulk.

Littelfuse Inc. 1.5KE220C-B datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE220C-B specifications
ParameterValue
TypeZener
Series1.5KE
MountingThrough Hole
Voltage - breakdown198V
Voltage - clamping (Max) @ ipp344.4V
Voltage - reverse standoff185V
Current - peak pulse (10/1000μs)4.6A
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

DO-201 axial TVS — board-fit and parametric baseline

The 1.5KE220C-B: The 1500W (1.5kW) peak pulse power rating at 10/1000µs waveform defines its transient energy-handling capability for a single surge event. The 185V standoff means the TVS draws negligible leakage below normal line voltage, making it suitable for 120VAC or 170VDC rail protection where the steady-state rail stays under the standoff threshold. The single bidirectional channel protects against both positive and negative transients without needing two diodes back-to-back — a space-saving advantage on the board.

Obsolete — sourcing through independent channels

Littelfuse has marked the 1.5KE220C-B as Obsolete. No official successor order code is recorded in the lifecycle data. A board-level qualification of any alternative is recommended before substitution.

Frequently asked questions

What package does the 1.5KE220C-B use?

It uses a DO-201AA (DO-27) axial-lead through-hole package, supplied in bulk. The supplier device package is designated DO-201.