Contact us | +1 973.345.5885 |

20 Watt

Single and Dual Output DIN Rail, Wide Input


Reliable snap-on for DIN rail

Our 20 watt single and dual output DC-DC converter has overload and short circuit protection, a reliable snap-on for DIN Rail TS-35/7.5 or TS-35/15 and internal input fuse and reverse polarity protection. The model has case protection that meets IP 20 (IEC60529) and an internal input in-rush current limit circuit.

INPUT

  • Voltage Range
    • 24 Vdc nominal input: 9.5 - 36 Vdc
    • 48 Vdc nominal input: 18 - 75 Vdc
  • Input Surge Voltage
    • 24 Vdc input: 50 Vdc 100 ms. max
    • 48 Vdc input: 100 Vdc 100 ms. max
  • Input fuse (slow blow)
    • 24 Vdc input: 6A
    • 48 Vdc input: 4A
  • In-rush current: 15A
  • Input reflected ripple current: 10 mAp-p
  • Start up time
    • Nominal input and Power Up: 100 mS
    • Constant resistive load
  • Startup Voltage
    • 24 Vdc input: 9.5 Vdc
    • 48 Vdc input: 18 Vdc
  • Shutdown Voltage
    • 24 Vdc input: 7.5 Vdc
    • 48 Vdc input: 15 Vdc
  • Remote ON/OFF
    • Positive logic
      • DC-DC ON: Open or 3 V<Vr<12V
      • DC-DC OFF: Short or 0 V<Vr<1.2V
  • Negative Logic
    • DC-DC ON: Short or 0V<Vr<1.2V
    • DC-DC OFF: Open or 3V<Vr<12V
  • Input current of Remote control pin
    • Nominal Input: 0.5 mA.
  • Remote off state input current
    • Nominal input: 2.5 mA.

OUTPUT

  • Output power: 20 Watts Max.
  • Voltage accuracy
    • 3.3 Vout: ±2.0%
    • Others: ±1.2%
  • Minimum Load: 0%
  • Line Regulation
    • LL to HL at Full Load
      • Single: ±0.2%
      • Dual: ±0.5%
  • Load Regulation
    • No load to Full Load
      • 3.3 Vout: ±2.0%
      • Others: ±1.5%
  • Load Cross Regulation
    • Dual: ±5%
  • Ripple and Noise (20 mHZ Bandwidth): 50 - 75 mVp-p
  • Temperature Coefficient: ±0.02%/°C Max.
  • Transient Response recovery time
    • 25% load step change: 250µS
  • Over voltage protection
    • 3.3 Vdc Output: 3.9 Vdc
  • Zener diode clamp
    • 5 Vdc Output: 6.2 Vdc
    • 12 Vdc Output: 15 Vdc
    • 15 Vdc Output: 18 Vdc
  • Output Indicator: Green LED
  • Over load protection
    • 0% of FL at nominal input: 150%
  • Short circuit protection: Hiccup, automatic recovery

GENERAL

  • Efficiency: 83 - 87%
    • Isolation Voltage
      • Input to Output: 1600 Vdc, min. 1 minute
      • Input (Output) to Chassis: 1600 Vdc, min. 1 minute
  • Isolation resistance: 109 ohms, min.
  • Isolation capacitance: 4000 pF, max.
  • Switching frequency: 400 KHz ±10%
  • Design meets safety standard: IEC60950-1, UL60950-1, EN60950-1
  • Chassis material: Aluminum
  • Dimensions: 4.2 x 2.27 x 0.97 (125.0 x 57.6 x 24.5 mm)
  • Weight: 5.19 oz. (147.5 g)
  • MTBF
    • BELLCORE TR-NWT-000332: 1.289 x 106 hrs.
    • MIL-HDBK-217F: 9.197 x 105 hrs.

ENVIRONMENTAL

  • Operating ambient temperature: -40 to 85°C without derating
  • Storage temperature range: -40 to 105°C
  • Thermal Shock: MIL STD 810F
  • Vibration: MIL STD 810F
  • Relative Humidity: 5 - 95% RH

EMC CHARACTERISTICS

  • EMI
    • EN55022: Class B
  • ESD:
    • EN61000-4-2, Perf. Criteria A
      • Air: ±8KV
      • Contact: ±6KV
  • Radiated Immunity
    • EN61000-4-3: 10 V/m, Perf. Criteria A
  • Fast Transient
    • EN61000-4-4: ±2KV, Perf. Criteria A
  • Surge
    • EN61000-4-5: ±0.5KV, Perf. Criteria A
  • Conducted Immunity
    • EN61000-4-6: 10 Vrms, Perf. Criteria A
    Output Current (mA)   Input Current (mA)        
Input Voltage
Range (Vdc)
Output Voltage
(Vdc)
Min. load Full load Output Ripple
& Noise
No load Full load Efficiency (%) Model Number Case Capacitor Load x.
Single Output
9.5 - 36 3.3 0 5500 60mVp-p 52 957 83 DMWB20-24S5 DR 18000μF
5 0 4800 75mVp-p 67 1016 86 DMWB20-24S5.1 DR 9600μF
12 0 1670 75mVp-p 26 1043 84 DMWB20-24S12 DR 1650μF
15 0 1330 75mVp-p 27 1039 84 DMWB20-24S15 DR 1050μF
18 - 75 3.3 0 5500 60mVp-p 37 473 83 DMWB20-48S3.3 DR 18000μF
5 0 4000 75mVp-p 37 508 86 DMWB20-48S5 DR 9600μF
12 0 1670 75mVp-p 18 515 85 DMWB20-48S5.1 DR 1650μF
15 0 1330 75mVp-p 18 513 85 DMWB20-48S15 DR 1050μF
Dual Output
9.5 - 36 ±5 0 ±2000 100mVp-p 59 1016 86 DMWB20-24-5 DR ±4800μF
±12 0 ±833 100mVp-p 34 1028 85 DMWB20-24-12 DR ±825μF
±15 0 ±667 100mVp-p 35 1029 85 DMWB20-24-15 DR ±525μF
18 - 75 ±5 0 ±2000 100mVp-p 37 502 87 DMWB20-48-5 DR ±4800μF
±12 0 ±833 100mVp-p 20 508 86 DMWB20-48-12 DR ±825μF
±15 0 ±667 100mVp-p 20 508 86 DMWB20-48-15 DR ±525μF