The PSCZM20 series of medical AC/DC power supplies offers 20 watts of output power in a compact 2.07” x 1.08” x 0.93” fully encapsulated plastic case. This series consists of single output models with a universal input range of 90~264VAC (or 120~370VDC). Each model in this series has low ripple & noise, low standby, and over power, over voltage, and short circuit protection. This series has CE, CB, UL, and cUL approvals.

• 90~264VAC or 120-370VDC Input Voltage • Fully Encapsulated Plastic Case • Switching Power Module for PCB Mountable • Optional Screw Terminal Available (“-A” Suffix) • Isolation Class II • Regulated Output • Low Standby <0.1 W • Low Ripple & Noise • Over Power, Over Voltage, and Short Circuit Protection • CE, CB, UL, and cUL Approvals
Power (W)
Case Size  
PSCZM20-12S Input Voltage: 90~264 Output Voltage: 12 Output Current: 1667mA Output Power (W): 20 No. Outputs: S Case: PCB Mount Size: 2.07" x 1.08" x 0.93" Get a Quote
PSCZM20-24S Input Voltage: 90~264 Output Voltage: 24 Output Current: 833mA Output Power (W): 20 No. Outputs: S Case: PCB Mount Size: 2.07" x 1.08" x 0.93" Get a Quote
Specification Value
Input Voltage (Nominal): 115/230
Input Voltage Range: 90~264
Input Frequency: 47 to 440Hz
Output Voltage: 12, 24
Voltage Accuracy: ±2%
Output Current: 1667mA, 833mA
Output Power (Watts): 20
Short Circuit Protection: Automatic Recovery
Over Voltage Protection: Zener Diode Clamp
Efficiency: 83%
Isolation: 4000VAC
Operating Temperature: -40 to +80ºC
Storage Temperature: -40 to +90ºC
Weight: 1.83oz (52g)
Dimensions: Standard: 2.07in x 1.08in x 0.93in
Screw Terminal: 3.78in x 2.12in x 1.14in
Case Material: Plastic Resin (Flammability to UL 94V-0)
Notes & safety
Notes: 1. This product is not designed for use in critical life support systems, equipment used in hazardous environments, nuclear control systems, or other such applications which necessitate specific safety and regulatory standards other than the ones listed in this datasheet.
2. Ripple & Noise are measured at 20MHz bandwidth with a 0.1uF & 47uF parallel capacitor
3. Natural convection is about 20LFM but is not equal to still air (0 LFM)
4. Safety Approvals cover frequency 47-63Hz.
5. It is recommended to add Varistor 14S471K at L/N input side in parallel.
6. In order to indicate Screw Terminal option, add –A to model number. Ex. PSCZM20-12S-A
7. This product is Listed to applicable standards and requirements by UL.
*Due to advances in technology, specifications subject to change without notice.
Safety Approvals: UL 60950-1, CAN/CSA C22.2 No. 60950-1-07, ANSI/AAMI ES60601-1 (2005 + C1:09 + A2:10), CAN/CSA-C22.2 No. 60601-1 (2008), 2 x MOPP, CB, IEC 60950-1:2005 (2nd Edition) + Am 1:2009 + Am 2:2013, IEC 60601-1: 2005 (3rd Edition) + CORR. 1 (2006) + CORR. 2 (2007) + AM1 (2012) or IEC 60601-1 (2012 reprint), 2 x MOPP

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