dc to dc converter
[ Typical performance ]
  • ◆ Narrow Range Input
  • ◆ Typical Efficiency （60%）
  • ◆ Switching frequency：50 ~ 100 KHz
  • ◆ No Short-Circuit Protection
  • ◆ Input-output isolate
  • ◆ PCB Board in-line type installs
  • ◆ Metal case, Low Output Ripple
[ Temperature graph ]
dc to dc converter
Input Min Nom Max Notes
Input voltage 4.75 5 5.25 ±5%
  5.70 6 6.30 ±5%
11.40 12 12.60 ±5%
14.25 15 15.75 ±5%
22.80 24 25.20 ±5%
45.60 48 50.40 ±5%
Remote ON/OFF Non
[ Output ]
Voltage accuracy Vo1,Vo2 ±3.0%
Line regulation Nominal Load，full voltage range Vo1,Vo2 ±1.0%
Load regulation 20% ~ 100% rated voltage Vo1,Vo2 ±1.0%
Ripple and noise 20MHz BM Full Load Vo≤50mVp-p
Start delay time Typical value ≤200mS
[ General ]
Efficiency Nominal input,Full load Vo≤5.0V,50%（Typical） Vo>5.0V，60%（Typical）
Switching frequency 50~100KHz （Typical） (Max)120KHz
Operating temperature Free air -25℃ ~ +65℃
Storage temperature -40℃ ~ +120℃
Max case temperature +90℃
Relative humidity 10%~90%
case material Metal case
Isolation Voltage Input-case Input-output 500Vdc ≤0.5mA/1min
MTBF 200000Hrs
[ Product Nomination Method ]
① Narrow range voltage input; ±5% of nominal voltage
② Power convert mode D (DC-DC)
③ Output Watt
④ Input voltage
⑤ S:Single output D: dual output
⑥ Output voltage
[ Typical product tabulates ]
Output voltage / current
  • VO1
  • VO2
  • VO3
  • V
  • mA
  • V
  • mA
  • V
  • mA
ND1-□S05A 5V（4.75~5.25）
6V（5.70~6.30）
12V（11.40~12.60）
15V（14.25~15.75）
24V（22.80~25.20）
48V（45.60~50.40）		 5V 100mA
ND1-□S12A 12V 100mA
ND1-□S15A 15V 100mA
ND1-□S24A 24V 50mA
ND3-□S05A 5V 200mA
ND3-□S12A 12V 200mA
ND3-□S05B 5V 500mA
ND3-□S12B 12V 250mA
ND3-□S15B/A 15V 200mA
ND3-□S24B/A 24V 125mA
ND1-□D05A +5V 100mA -5V 100 mA
ND1-□D12A +12V 50mA -12V 50 mA
ND1-□D15A +15V 50mA -15V 50 mA
ND1-□D24A +24V 20mA -24V 20 mA
ND3-□D12A +12V 100mA -12V 100 mA
ND3-□D05B +5V 200mA -5V 200 mA
ND3-□D012B +12V 100mA -12V 100 mA
ND3-□D15B/A +15V 100mA -15V 100 mA
ND3-□D24B/A +24V 60mA -24V 60 mA
[ Mechanical Graph ]
[ Mechanical Size ]
Package Code L x W x H  (unit)：mm Package No
A 25.40 x 25.40 x 10.16 100100DC
B 50.80 x 25.40 x 10.16 200100DC
[ Pin Assignments ]
  1 2 3 4 5
Single -Vin +Vin +Vout NP GND
Dual -Vin +Vin +Vout1 COM -Vout2
*Note：The power modules such as the definition of the pin does not match with the data sheet,please refer to the actual item.