HP 87421A Power Supply, +/-12 VDC, 25 W

Product Summary

The HP 87421A is a universal input, dc switching power supply designed to provide the bias voltages needed to operate HP microwave system amplifiers. These compact power supplies are ideal for integration into a system or for use on a bench top. The two-meter dc bias cable permits the amplifier to be remotely located, allowing it to be placed out of the way or where space is not critical. The HP 87421A is a 25 watt, 12V dc power supply designed to power the HP 83006A, 83017A, 83018A, 83050A, 83051A, and 87415A microwave system amplifiers. A two-meter cable is included for direct connection to the amplifier. The HP 87421A may also be used to provide bias voltages for the HP 83440C high speed lightwave converter. Using the HP 83440-60009 lightwave converter power supply adapter, the HP 87421A becomes a compact, convenient power supply for use with the lightwave converter.

Product Features

• Designed specifically for HP microwave system amplifiers

• Bias cable permits remote placement

• Compact size for easy system integration

Product Specifications

DC Output Voltage/Current:	+12 V at 2.0 A, -12 V at 200 mA

Output Power:			25 W maximum

Line Regulation:		0.1%

Load Regulation (20% to full load):
				2.0%

Output Ripple:			25 mV RMS maximum

Output Noise:			2% peak-to-peak maximum

Overvoltage Limit Protected:	Yes

Short Circuit Protection:	Current limited for overload and short circuit
				protection.  Normal operation returns upon
				removal of overload.

General Specifications
AC Input Voltage:		100 to 240 Vac
				50/60 Hz

Fuse:				1 A, slow blow

Size:				57 mm H, 114 mm W, 176 mm W
				2.3 in, 4.5 in, 6.9 in
Weight
Net:				0.9 kg (2.0 lb)
Shipping:			1.8 kg (4.0 lb)

Temperature
Operating:			0 to 50° C full load
Storage:			-40 to 70° C

Product Ordering Information

HP 87421A	Power Supply, +/-12 VDC, 25 W

All orders include the following:

A two-meter bias cable (HP 83006-60005) with a 3-pin connector on one
end and a D-subminiature connector on the other end for direct
connection between the power supply and an HP 83006A, 83017A,
or 83018A microwave system amplifier.

To help you make the right instrument choices

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