Cincon EC7AW18-ECRT/EDRT Series DC/DC Converter
The Cincon EC7AW18 ECRT/EDRT Series is a compact, railway-approved isolated DC/DC converter range delivering 10 W of regulated output power from an ultra-wide 16:1 DC input range. Designed for harsh industrial and transport environments, the series provides reliable auxiliary power for control electronics, signalling, communications, and onboard...
Read MoreThe Cincon EC7AW18 ECRT/EDRT Series is a compact, railway-approved isolated DC/DC converter range delivering 10 W of regulated output power from an ultra-wide 16:1 DC input range. Designed for harsh industrial and transport environments, the series provides reliable auxiliary power for control electronics, signalling, communications, and onboard systems.
Supporting 10–160 Vdc input (72 Vdc nominal), the EC7AW18 series is available in single or dual output configurations with 5 Vdc, 12 Vdc, or 15 Vdc outputs, allowing flexibility across a wide range of low-voltage loads. High efficiency of up to 87%, low no-load power consumption, and fully regulated outputs ensure stable performance even under fluctuating supply conditions.
Housed in a rugged aluminium chassis with baseplate cooling, the EC7AW18 series is available in chassis-mount (ECRT) or DIN-rail mount (EDRT) versions. Compliance with EN50155, EN50121-3-2, EN45545-2, and IEC/EN/UL 62368-1 makes it well suited for railway, industrial automation, utilities, and infrastructure applications where safety and reliability are critical.
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Features
- Input voltage: 10–160 Vdc (72 Vdc nominal)
- Output voltage options: Single output (5 Vdc, 12 Vdc, or 15 Vdc), Dual output (±5 Vdc, ±12 Vdc, or ±15 Vdc)
- Output current up to 0.835 A
- DC/DC converter power rating: 10 W
- Galvanically isolated input and output (3000 Vac I/O isolation)
- High efficiency: up to 87%
- Wide operating case temperature: –40 °C to +100 °C
- Fully protected: OCP, OVP, UVLO, short-circuit protection
Specifications
| ABSOLUTE MAXIMUM RATINGS | ||||||
|---|---|---|---|---|---|---|
| Parameter | Notes and Conditions | Device |
Min. |
Typ. |
Max. |
Units |
| Input Voltage | Continuous | All | -0.3 | 160 | Vdc | |
| Input Surge Voltage | 100ms max. | All | 200 | Vdc | ||
| Operating Case Temperature | At the center part of case plate | All | -40 | 100 | ℃ | |
| Storage Temperature | All | -40 | 105 | ℃ | ||
| INPUT CHARACTERISTICS | ||||||
|---|---|---|---|---|---|---|
| Parameter | Notes and Conditions | Device | Min. | Typ. | Max. | Units |
| Operating Input Voltage | All | 10 | 72 | 160 | Vdc | |
| Input Under Voltage Lockout | ||||||
| Turn-On Voltage Threshold | 80% Load | All | 8.5 | 9.1 | 9.8 | Vdc |
| Turn-Off Voltage Threshold | 80% Load | All | 7.9 | 8.4 | 9.0 | Vdc |
| Lockout Hysteresis Voltage | 80% Load | All | 0.7 | Vdc | ||
| Maximum Input Current | Vin=14V, Full load | All | 1.0 | A | ||
| Maximum Input Inrush Current | Vin=160V, Full load | All | 15 | A | ||
| No-Load Input Current | Vin=72V, Io=0A | See Model Number Table | mA | |||
| OUTPUT CHARACTERISTICS | ||||||
|---|---|---|---|---|---|---|
| Parameter | Notes and Conditions | Device | Min. | Typ. | Max. | Units |
| Voltage Set Point Accuracy | Vᵢₙ=72V, Full load, Tc=25℃ | All | -1.2 | +1.0 | % | |
| Output Voltage Balance | Vᵢₙ=72V, Full load, Tc=25℃ | Dual | -1.0 | +1.0 | % | |
| Output Voltage Regulation | ||||||
| Load Regulation | Full load to no load | Single | ±1.5 | % | ||
| Dual | ±1.0 | % | ||||
| Line Regulation | Vᵢₙ=High line to low line, full load | All | ±0.2 | % | ||
| Cross Regulation | Load cross variation 25%/100% | Dual | ±5.0 | % | ||
| Temperature Coefficient | Tc=-40℃ to 100℃ | All | ±0.02 | %/℃ | ||
| Output Voltage Ripple and Noise (5Hz to 20MHz bandwidth) | ||||||
| Peak-to-Peak RMS. |
Full load, 1uF ceramic capacitors | All | 100 40 |
mV | ||
| Output Current Range | Vin= 10 to 160V | See Model Number Table & Power Derating Curve | mA | |||
| Over Current Protection | Hiccup Mode. Auto recovery | All | 110 | 150 | 180 | % |
| Short Circuit Protection | All | Continuous, Auto Recovery. | ||||
| External Load Capacitance | Full load (resistive) | See Model Number Table | uF | |||
| Over Voltage Protection | Zener clamp | 12Vo 15Vo ±5Vo ±12Vo ±15Vo |
15 18 ±6.2 ±15 ±18 |
Vdc | ||
| EFFICIENCY | |||||||
|---|---|---|---|---|---|---|---|
| Parameter | Notes and Conditions | Device | Min. | Typ. | Max. | Units | |
| 100% Load | Vin=72V | See Model Number Table | % | ||||
| DYNAMIC CHARACTERISTICS | ||||||
|---|---|---|---|---|---|---|
| Parameter | Notes and Conditions | Device | Min. | Typ. | Max. | Units |
| Output Voltage Current Transient | ||||||
| Error Band | 75% to 100% of Iₒ_ₘₐₓ step load change di/dt=0.1A/us (within 1% Vout nominal) |
All | ±5 | % | ||
| Recovery Time | 250 | us | ||||
| Turn-On Delay and Rise Time | Full load (Constant resistive load) | |||||
| Turn-On Delay Time, From On/Off Control | Vₒₙ/ₒff to 10%Vo_set, Remote on | All | 30 | ms | ||
| Turn-On Delay Time, From Input | Vᵢₙ_ₘᵢₙ to 10%Vo_set, Power up | All | 30 | ms | ||
| Output Voltage Rise Time | 10%Vo_set to 90%Vₒ_ₛₑₜ | All | 10 | ms | ||
| ISOLATION CHARACTERISTICS | |||||||
|---|---|---|---|---|---|---|---|
| Parameter | Notes and Conditions | Device | Min. | Typ. | Max. | Units | |
| Isolation Voltage (100% factory Hi-Pot tested @2sec.) |
1 Minute; Input to output 1 Minute; Input to case 1 Minute; Output to case |
All | 3000 2000 1000 |
Vac Vac Vac |
|||
| Isolation Resistance | Input to output | All | 1000 | MΩ | |||
| Isolation Capacitance | Input to output Input to case Output to case |
All | 2000 780 1120 |
pF | |||
| FEATURE CHARACTERISTICS | |||||||
|---|---|---|---|---|---|---|---|
| Parameter | Notes and Conditions | Device | Min. | Typ. | Max. | Units | |
| Switching Frequency | Pulse wide modulation (PWM), Fixed | All | 230 | 255 | 280 | KHz | |
| On/Off Control, Remote On/Off Logic, Refer to –Vin pin | |||||||
| Logic High (Module Off) | Von/off at Ion/off>0.3mA | All | 3.5 | 12 | V | ||
| Logic Low (Module On) | Von/off at Ion/off=0.0uA, Pin open=on | All | 0 | 1.2 | V | ||
| On/Off Current (for both remote on/off logic) | Ion/off at Von/off=3.5-12V | All | 0.3 | 2.4 | mA | ||
| Off Converter Input Current | Shutdown input idle current | All | 3 | 5 | mA | ||
| GENERAL SPECIFICATIONS | |||||||
|---|---|---|---|---|---|---|---|
| Parameter | Notes and Conditions | Device | Min. | Typ. | Max. | Units | |
| MTBF | Iₒ=100% of Io_max; MIL-HDBK - 217F_Notice 1, GB, 25℃ |
72S12 72S15 72D05 72D12 72D15 |
982 1000 797 902 970 |
K hours |
|||
| Weight | -ECRT -EDRT |
103 |
grams | ||||
| Case plate Material | Aluminum | ||||||
| Potting Material | UL 94V-0 (DC Module) | ||||||
| Shock/Vibration | EN50155 (EN61373) Compliant | ||||||
| Humidity | 95% RH max. Non Condensing | ||||||
| Altitude | 5000m Operating Altitude, 12000m Transport Altitude | ||||||
| Thermal Shock | MIL-STD-810F | ||||||
| Fire & Smoke | EN45545-2 Compliant | ||||||
| EMI | EN55032 & EN50155 Compliant | Class A | |||||
| ESD | EN61000-4-2 | Level 3: Air ±8kV, Contact ±6kV | Perf. Criteria A | ||||
| Radiated immunity | EN61000-4-3 | Level 3: 80~1000MHz, 20V/m | Perf. Criteria A | ||||
| Fast Transient | EN61000-4-4 |
Level 3: On power input port, ±2kV (EN50155) Level 3: On power input port, ±2kV (EN55035) |
Perf. Criteria A | ||||
| Surge | EN61000-4-5 | Level 4: Line to earth, ±4kV, Line to line, ±2kV (EN50155) Level 3: Line to earth, ±2kV, Line to line, ±1kV (EN55035) |
Perf. Criteria A | ||||
| Conducted immunity | EN61000-4-6 | Level 3: 0.15~80MHz, 10V | Perf. Criteria A | ||||
| Interruptions of Voltage Supply | EN50155 | Class S3: 20ms interruptions | Perf. Criteria A | ||||
| Supply Change Over | EN50155 | Class C2: During a supply break of 30ms | Perf. Criteria A | ||||
| Application Note Link EC7AW18-72S EC(D)RT Series App Notes Packaging Information Link Packaging Information |
|||||||
| IMMUNITY TO ENVIRONMENTAL CONDITIONS | ||||
|---|---|---|---|---|
| Phenomenon | EN50155; 2017 Reference Clause(s) |
Reference Standard | Test Conditions | Result |
| Low Temperature Start-up test |
13.4.4 | EN 60068-2-1 | Class OT4 Temperature: -40℃ Duration: 2 hrs |
Pass |
| Dry Heat Test | 13.4.5 | EN 60068-2-2 |
Class OT4 & Cycle B |
Pass |
| Low Temperature Storage Test | 13.4.6 | EN 60068-2-1 | Temperature: -40℃ Duration: 16 hrs |
Pass |
| Cyclic Damp Heat Test | 13.4.7 | EN 60068-2-30 | Temperature: 25℃ - 55℃ Humidity: 90% RH Duration: 48 hrs |
Pass |
| Random Vibration Test | 13.4.11 | EN 61373 | Temperature: 25℃ +/- 10℃ Humidity: 50% +/-25% RH Frequency range: 5 ~ 150 Hz Vertical: 1.01 𝑚⁄𝑠² Transverse: 0.450 𝑚⁄𝑠² Longitudinal: 0.700 𝑚⁄𝑠² Duration: 10 min / axis |
Pass |
| Simulated Long Life Test at Increased Random Vibration Levels |
13.4.11 | EN 61373 | Temperature: 25℃ +/-10℃ Humidity: 50% +/-25% RH Frequency range: 5 ~ 150 Hz Vertical: 5.72 𝑚⁄𝑠² Transverse: 2.55 𝑚⁄𝑠² Longitudinal: 3.96 𝑚⁄𝑠² Duration: 5 hrs / axis |
Pass |
| Shock Test | 13.4.11 | EN 61373 | Temperature: 25℃ +/-10℃ Humidity: 50% +/-25% RH Frequency range: 5 ~ 150 Hz +/-Vertical: 30 m⁄s2 +/-Transverse: 30 𝑚⁄𝑠² +/-Longitudinal: 50 𝑚⁄𝑠² Duration: 30ms x18 (Each axis 3 shocks) |
Pass |
| EN45545-2 FIRE & SMOKE TEST CONDITIONS | |||
|---|---|---|---|
| Item | Notes and Conditions | Standard | Hazard Level |
| R22 | Oxygen Index Test | EN 45545-2: 2013 EN ISO 4589-2: 2006 |
HL1, HL2, HL3 |
| Smoke Density Test | EN 45545-2: 2013 EN ISO 5659-2: 2013 |
HL1, HL2, HL3 | |
| Smoke Toxicity Test | EN 45545-2: 2013 NF X70-100: 2006 |
HL1, HL2, HL3 | |
| R23 | Oxygen Index Test | EN 45545-2: 2013 EN ISO 4589-2: 2006 |
HL1, HL2, HL3 |
| Smoke Density Test | EN 45545-2: 2013 EN ISO 5659-2: 2013 |
HL1, HL2, HL3 |
|
| Smoke Toxicity Test | EN 45545-2: 2013 NF X70-100: 2006 |
HL1, HL2, HL3 |
|
| R24 | Oxygen Index Test | EN45545-2: 2013 EN ISO 4589-2 |
HL1, HL2, HL3 |
| R25 | Glow - Wire Test | EN 45545-2:2013 EN 60695-2-11:2001 |
HL1, HL2, HL3 |
| R26 | Vertical Flame Test | EN 45545-2: 2013 EN 60695-11-10: 2013 |
HL1, HL2, HL3 |
Selection Table
| MODEL NUMBER | INPUT VOLTAGE | OUTPUT VOLTAGE | OUTPUT CURRENT | INPUT CURRENT | % EFF. | CAPACITOR LOAD MAX | ||
|---|---|---|---|---|---|---|---|---|
| MIN. | MAX. | NO LOAD | FULL LOAD | |||||
| EC7AW18-72S12-ZZZZW |
10-160 VDC |
12 VDC |
0 mA | 835 mA | 6 mA | 160 mA | 87 | 835uF |
| EC7AW18-72S15-ZZZZW |
10-160 VDC |
15 VDC |
0 mA | 668 mA | 6 mA | 160 mA | 87 | 668μF |
| EC7AW18-72D05-ZZZZW |
10-160 VDC |
±5 VDC |
0 mA | ±1000 mA | 6 mA | 170 mA | 81 | 1000μF |
| EC7AW18-72D12-ZZZZW |
10-160 VDC |
±12 VDC |
0 mA | ±416 mA | 6 mA | 163 mA | 85 | 416μF |
| EC7AW18-72D15-ZZZZW |
10-160 VDC |
±15 VDC |
0 mA | ±333 mA | 6 mA | 163 mA | 85 | 333μF |
NOTE:
1. Nominal Input Voltage 72 VDC.
2. Refer to Application Note for Thermal Resistance and Derating Information.
3. TVS is Included for Input Surge Voltage Protection.
4. Fuse & Shunt Diode is Include Inside for Input Reverse Polarity Protection.
5. CN1 & CN2 Connection: DINKLE 0137-1103 Series or Equivalent, Suitable Electric Wire: 26~16AWG (IEC 0.2~1.5mm2).
6. EC7AW18-72OXX-ZZZZW has De-Rating by Input Voltage is Required See Power Derating Curve.
7. EDRT with Din Mount, the Clip is Suitable for TS-35 Din Rail.
PART NUMBER
| SERIES | NOMINAL INPUT VOLTAGE | NUMBER OF OUTPUTS | NOMINAL OUTPUT VOLTAGE | CHASSIS MOUNT TYPE | COATING |
|---|---|---|---|---|---|
| EC7AW18- | II | O | XX | -ZZZ | +W |
| EC7AW18 |
72 : 72 VDC |
S：Single D : Dual |
12 : 12Vdc |
ECRT ：Enclosed Chassis Mount + Railway Turnkey EDRT：Enclosed Chassis Mount + Din Rail + Railway Turnkey |
None：Without Protective Coating P：With Protective Coating |
Part Number Example:
EC7AW18-72S12-EDRTP: Enclosed Chassis Mount + Din Rail, 10W, 16:1 10-160Vdc Input, Single 12Vdc Output, With Protective Coating
Technical Drawings
Warranty & Returns
Warranty periods vary by product. Please refer to the Powerbox Warranty Policy for the applicable coverage period against manufacturing defects from date of purchase. For returns and RMA requests, please visit our RMA support page or contact our support team directly.