Power Supply User's Manual 87421A 87422A

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Product specifications
Agilent 87421A Agilent 87422A
Output voltage/current +12V at 2 A +15V at 4.0 A
–12V at 200 mA –15V at 200 mA
+12V at 2 A
–12V at 200 mA
Output power 25 W 90 W
Line regulation 0.1% 0.1%
Load regulation (20% to full load) 2.0% 1.0%
Output ripple 25 mV RMS max 25 mV RMS max
Output noise 2% peak to peak max 2% peak to peak max
Overvoltage limit protected Yes Yes
Short circuit protection Current limited for overload and shod Current limited for overload and short
circuit protection. Normal operation circuit protection. Normal operation
returns upon removal of overload. returns upon removal of overload.
General specifications
AC input voltage 90–250 VAC, 50/60 Hz 90–240 VAC, 50/60 Hz
Fuse 1 A, slow blow T 3.15 A
Weight 0.9 kg (2.0 lb) 2.1 kg (4.6 lb)
Shipping weight 1.8 kg (4.0 lb) 3.2 kg (7.0 lb)
Environmental specifications
Operating temperature 0° to +55° C full load 0° to +55° C full load
Storage temperature –40° to +70° C –40° to +70° C