Transient suppressor for legacy through-hole designs
The 1.5KE160A-B: It clamps transients at 219 V maximum while standing off 136 V continuously, making it a fit for 120 VAC or 130 VDC rail protection in signal and low-power circuits. With a breakdown voltage range starting at 152 V minimum, the device triggers before the protected circuitry sees damaging overvoltage. The 6.8 A peak pulse current rating at the clamping voltage confirms the energy-handling capacity for repetitive surge events in industrial control and telecom line cards.
Package and replacement fit
Housed in the DO-201AA (DO-27) axial-lead package, the 1.5KE160A-B is a through-hole component with a 0.052-inch diameter lead. The DO-201 footprint is a standard across the 1.5KE series — any replacement TVS in the same package and power class will share the same hole pattern and lead spacing, simplifying board rework during sustainment. The wide margin above 125°C allows derating for high-ambient or confined enclosures without exceeding the silicon limit.
Sourcing an obsolete protection diode
The DO-201 package and 1500 W power class are common enough that a parametric cross-reference from another TVS family may exist, but no pin-compatible second source is documented by the OEM.