VD/WRF series DC-DC
Isolation module power supplyMade using reliable processes such as ceramic substrates and printed resistors, it can meet the requirements of industrial grade vibration, humidity, electrostatic interference, wide temperature range (-45 to+85 ℃), and other harsh environments. The product has SIP single column and DIP dual column packaging options. Main application areas: suppression of ground wire interference in electrical equipment, external port power isolation and transformation of instruments and meters (RS485/RS232/RS422/USB/IEEE 1394 communication interfaces, etc.), safety high isolation/anti surge/anti-static isolation of exposed metal parts of instrument housing interface terminals (national safety standard: 8KV or above).
Electrical Characteristics
Unless otherwise specified, the following data were measured at TA=25 ° C, nominal input voltage, and rated output current
Input characteristics
Voltage range:+/-10% * nominal value
Filter: Ceramic capacitor
Isolation characteristics
Rated voltage: 3000 VAC
Leakage current: 1 mA
Resistance: 09Ohm
Capacitor: 60 pTYP
output characteristics
Anti static pulse: 8000VAV
Voltage accuracy:+/-2% * nominal value Max
(20 MHz BW) Ripple and Noise: 0mV p-p, Max
Sustainable short-circuit time: Long term
Linear voltage calibration:+/-1.2%/1.0% of Vin
Load voltage calibration:+/-8%, load=20~100
Temperature coefficient:+/-0.02%/° C
一般特性
Efficiency: 70% to 80%
Switching frequency: 80-125KHz
Environmental characteristics
Working temperature (environment): -40 ° C to+85 ° C
Storage temperature: -55 ° C to+125 ° C
Reduce the quota value: see the temperature characteristic curve graph
Humidity: ≤ 90%, non compressed
Cooling method: natural air cooling
Volume characteristics
SIP encapsulation size:
1W：19.60 x 6,00 x 10,00 mm 0,77 x 0,23 x 0,39 英寸
2W：19.60 x 7,00 x 10,00 mm 0,77 x 0,28 x 0,39 英寸
DIP package size: 1W/2W: 2.4 x 10.00 x 8.2 mm 0.8 x 0.39 x 0.32 inches
Weight: 2.5-3.5 g
Shell material: non-conductive flame-retardant black plastic