40 Watt
Single and Dual Output DIN Rail, Wide Input
DIN rail with reverse polarity protection
With a reliable snap-on for DIN rail and internal input fuse protection, our 40 watt single and dual DC-DC converter features case protection that meets IP 20, an output DC-OK indicator and internal input reverse polarity protection. This design also has an internal input in-rush current limit circuit, overload and short circuit protection and over voltage protection.

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: 8A
- 48 Vdc input: 4A
- In-rush current: 15A
- Input reflected ripple current: 15 mAp-p
- Start up time
- Nominal input and Constant Resistive Load
- Power Up: 100 mS
- Remote On/Off: 20 mS
- Nominal input and Constant Resistive Load
- Startup Voltage
- 24 Vdc input: 9.5 Vdc
- 48 Vdc input: 18 Vdc
- Shutdown Voltage
- 24 Vdc input: 8 Vdc
- 48 Vdc input: 16 Vdc
- Remote ON/OFF
- Positive logic (Standard)
- DC-DC ON: Open or 3 V <Vr <12V
- DC-DC OFF: Short or 0 V < Vr < 1.2V
- Negative Logic (Option)
- 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. - 0.5 mA.
- Remote off state input current
- 24 Vdc input: 10 mA
- 48 Vdc input: 5 mA.
OUTPUT
- Output power: 40 Watts Max.
- Voltage accuracy
- 3.3 Vout: ±1.5%
- Others: ±1%
- Minimum Load: 0 mA
- Voltage adjustability
- Single 28 Vout: -3% - 17%
- Single Others: ±10%
- Line Regulation
- LL to HL at Full Load
- Single: ±0.5%
- LL to HL at Full Load
- Load Regulation
- No load to Full Load
- 3.3 Vou: ±2.0%
- Others: ±1%
- No load to Full Load
- Load Cross Regulation
- Dual: ±5%
- Ripple and Noise (20 mHZ Bandwidth): 50 - 100 mVp-p
- Temperature Coefficient: ±0.02%/°C Max.
- Transient Response recovery time
- 25% load step change: 250µS
- Overvoltage Protection: Zener Diode Clamp
- 3.3 Vdc Output: 3.9 Vdc
- 5 Vdc Output: 6.2 Vdc
- 12 Vdc Output: 15 Vdc
- 15 Vdc Output: 18 Vdc
- 24 Vdc Output: 30 Vdc
- 28 Vdc Output: 36 Vdc
- Output Indicator: Green LED
- Over load protection
- 0% of FL at nominal input: 150%
- Short circuit protection: Hiccup, automatic recovery
GENERAL
- Efficiency: 83 - 86%
- 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: 4.92 x 2.27 x 0.97 (125.0 x 57.6 x 24.5 mm)
- Weight: 170 g (5.19 oz.)
- MTBF
- BELLCORE TR-NWT-000332: 1.289 x 10^6 hrs.
- MIL-HDBK-217F: 9.197 x 10^5 hrs.
ENVIRONMENTAL
- Operating ambient temperature:
- -40 to 66°C without derating
- -40 to 85°C with 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
- Air: ±8KV
- Contact: ±6KV, Perf. Criteria A
- 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(4) Ripple & Noise | No load(3) | Full load(2) | Efficiency(4) (%) | Model Number | Case | Capacitor Load max.(5) |
9.5 - 36 | 3.3 | 0 | 1000 | 50mVp-p | 83 | 1741 | 83 | DMWB40-24S33 | DR | 25750μF |
5 | 0 | 8000 | 50mVp-p | 103 | 2083 | 84 | DMWB40-24S5 | DR | 13600μF | |
5.1 | 0 | 333 | 75mVp-p | 56 | 2083 | 84 | DMWB40-24S12 | DR | 2360μF | |
12 | 0 | 2666 | 75mVp-p | 56 | 2083 | 84 | DMWB40-24S15 | DR | 1510μF | |
15 | 0 | 1667 | 100mVp-p | 76 | 2083 | 84 | DMWB40-24S24 | DR | 600μF | |
18 - 75 | 3.3 | 0 | 1333 | 100mVp-p | 82 | 1944 | 84 | DMWB40-24S28 | DR | 375μF |
5 | 0 | 1000 | 100mVp-p | 63 | 859 | 84 | DMWB40-48S33 | DR | 25750μF | |
5.1 | 0 | 8000 | 50mVp-p | 68 | 1029 | 84 | DMWB40-48S5 | DR | 13600μF | |
12 | 0 | 3333 | 75mVp-p | 34 | 1029 | 84 | DMWB40-48S12 | DR | 2360μF | |
15 | 0 | 2666 | 75mVp-p | 34 | 1029 | 86 | DMWB40-48S15 | DR | 1510μF | |
9.5 - 36 | 28 | 0 | 1667 | 75mVp-p | 41 | 1042 | 85 | DMWB40-48S24 | DR | 600μF |
±12 | 0 | ±1333 | 100mVp-p | 41 | 972 | 85 | DMWB40-48S28 | DR | 375μF | |
±15 | 0 | ±1667 | 100mVp-p | 65 | 2083 | 84 | DMWB40-24-12 | DR | ±1200μF | |
18 - 75 | ±5 | 0 | ±1333 | 100mVp-p | 76 | 2083 | 84 | DMWB40-24-15 | DR | ±750μF |
±12 | 0 | ±1667 | 100mVp-p | 34 | 1042 | 84 | DMWB40-48-12 | DR | ±1200μF | |
±15 | 0 | ±1333 | 100mVp-p | 34 | 1042 | 84 | DMWB40-48-15 | DR | ±750μF |
Notes
1. BELLCORE TR-NWT-000332. Case 1: 50% Stress, Temperature at 40°C. MIL-HDBK-217F Notice2 @Ta=25 °C, Full load(Ground, Benign, controlled environment).
2. Maximum value at nominal input and full load.
3. Typical value at nominal input and no load.
4. Typical value at nominal input and full load.
5. Test by minimum input and constant resistive load.
6. The output requires minimum loading on the ou tput to maintain specified regulation. Operation under no-load condition will not damage these devices, however, they may not meet all listed specification.
7. Single output installs a potentiome ter to adjust the output voltage.
8. Load regulation for dual output: Min load to 100% load balanced on all outputs.
9. Cross regulation for dual output: asymmetrical load 25% / 100% FL
10. The ON/OF F voltage is referenced to -INPUT To order negative logic ON/OFF control add the suffix -N.