1N5221B-1 thru 1N5281B-1 Available on commercial .
1N5253B - Zener Diodes
1N5253B - ZENER DIODES
1N5253B - SILICON ZENER DIODES
1N5253B - Silicon Zener Diodes
1N5253B - 500mW EPITAXIAL ZENER DIODE
1N5253B - 500mW ZENER DIODE
1N5253B - Zener Diode
1N5253B - 500mW 5% DO-35 ZENER DIODE
1N5253BUR-1 - METALLURGICALLY BONDED GLASS SURFACE MOUNT 500mW ZENERS
1N5253B - 0.5W Hermetically Sealed Glass Zener Diodes
1N5253B-1 - ZENER DIODES
1N5253B - Voltage regulator diodes
1N5253B - Small Signal Zener Diodes
1N5253B-G - Glass Silicon Zener Diode
1N5253B - SILICON PLANAR ZENER DIODES