Up to 100 Watts

Ultra-wide Input Range

OFQC100 Series DC-DC Converters

Polytron Devices’ OFQC100 Series of isolated 100-Watt DC-DC converters come in a quarter-brick package and are available in two ultra-wide 12:1 input ranges of 9-75V and 14-160V DC tohandle a variety of railway power systems. The series offers high efficiency up to 90 percent, nominimum load requirement, low standby power and remote ON/OFF control for energy savings. The units offer 3000V AC reinforced insulation and 2250V DC basic insulation. OFQC100 DC-DC converters meet the IEC/UL/EN62368-1 standard as well as EN50155 and EN45545-2 standards for railway applications. Built-in safeguards include over temperature, overcurrent, overvoltage, short circuit and undervoltage protections. A six-sided continuous shield minimizes noise leakage. The units comply with RoHS and REACH, and they carry the CE Mark.

INPUT

Operating input voltage range, Vdc
- 9 Min., 36 Typ., 75 Max.; 36Vin(nom)
- 14 Min., 72 Typ., 160 Max.; 72Vin(nom)
Start up voltage, Vdc
- 9 Max.; 36Vin(nom)
- 14 Max.; 72Vin(nom)
Shutdown voltage, Vdc
- 7.3 Min., 7.7 Typ., 8.1 Max.; 36Vin(nom)
- 10 Min., 11 Typ., 12 Max.; 72Vin(nom)
Start up time, ms
- 75 Typ., 100 Max.; Constant resistive load, Power up
- 75 Typ., 100 Max.; Remote ON/OFF
Input transient voltage, Vdc
- 8.1 Max.; 36Vin(nom), 100 mS, Max.
- 12 Max.; 72Vin(nom)
Input surge voltage, Vdc
- 100 Max.; 36Vin(nom), 1 second, Max.
- 185 Max.; 72Vin(nom)
Input filter: Pi type
Remote ON/OFF Control, Vdc
- Referred to -Vin pin
- Short or 0 - 1.2; Negative logic DC-DC ON
- Open or 3 - 12; (Standard) DC-DC OFF
- Open or 3 - 12; Positive logic DC-DC ON
- Short or 0 - 1.2; (Option) DC-DC OFF
- -0.5 Min., 1 Max., mA; Input current of Ctrl pin
- 3 Typ., mA; Remote off input current

OUTPUT

Voltage accuracy, %: -1 Min., 1 Max.
Line regulation, %
- -0.1 Min., 0.1 Max.; Low line to high line at full load
Load regulation, %
- -0.1 Min., 0.1 Max.; No load to full load
Voltage adjustability, %
- -20 Min., 10 Max.; Max. output deviation is inclusive of remote sense
Remote sense, %
- 10 Max.; % of Vout(nom). If remote sense is not being used, SENSE pins should connect to corresponding polrity OUTPUT pins.
Ripple and noise, mVp-p
- 20MHz bandwidth
- 75 Typ.; 5Vout, with a 1μF/25V X7R MLCC and a 22μF/25V POS-CAP
- 100 Typ.; 12Vout, 15Vout, with a 22μF/25V X7R MLCC
- 200 Typ.; 24Vout, 28 Vout, with a 4.7μF/50V X7R MLCC
- 300 Typ.; 48Vout, 53 Vout, with a 2.2μF/100V X7R MLCC
Temperature coefficient, %/°C: -0.02 Min., 0.02 Max.
Transient response recovery time, μs
- 250 Typ.; 25% load step change
Over voltage protection, Vdc
- 120 Min., 135 Max.; % of Vout(nom); Hiccup mode
Over load protection, %
- 110 Min., 130 Max.; % of lout rated; Hiccup mode
Short circuit protection: Continuous, automatic recovery

GENERAL

Isolation voltage
- 1 minute, 72Vin(nom); Input to output; 3,000 Min. Vac
- (Reinforced insulation); Input (output) to Base-Plate; 1,500 Min. Vac
- 1 minute, 36Vin(nom); Input to output; 2,250 Min., Vdc
- (Basic insulation); Input (output) to Base-Plate; 1,600 Min., Vdc
Isolation resistance, GΩ: 500Vdc; 1 Min.
Isolation capacitance, pF: 1,000 Max.
Switching frequency, kHz: 160 Min.; 180 Typ.; 200 Max.

ENVIRONMENTAL

Operating base-plate temperature, °C: With derating; -40 Min.; 105 Max.
Max. case temperature, °C: 105 Max.
Over temperature protection, °C: 110 Typ.
Storage temperature range, °C: -55 Min.; 125 Max.
Thermal impedance, °C/W
- Module without assembly option; 8.3 Typ.
- Only mount on the iron base-plate; 2.5 Typ.
- Heat-sink type with 0.24” height; 7.4 Typ.
- Heat-sink type with 0.5” height; 6.2 Typ.
- Heat-sink type with 0.65” height; 4.4 Typ.
- Heat-sink type with 1” height; 3.6 Typ.
Thermal shock: MIL-STD-810F
Shock: EN61373, MIL-STD-810F
Vibration: EN61373, MIL-STD-810F
Relative humidity: 5% to 95% RH

PHYSICAL

Design meet safety standard: IEC/UL/EN6236801, EN50155, EN45545-2
Case material: Aluminum base-plate with plastic case
Potting material: Silicone (UL94 V-0)
Weight, g: 64g (2.26oz)
Dimensions: 2.28” × 1.45” × 0.50” (57.9mm × 36.8mm × 12.7mm)
MTBF: 4.208 × 10⁵ hrs , MIL-HDBK-217F, Full load

EMC SPECIFICATIONS

EMI
- Conditions: EN55032, EN50121-3-2; With external components. Level: Class A, Class B
EMS
- Conditions: EN55024, EN50121-3-2
ESD
- Conditions: EN61000-4-2; Air ±8kV and Contact ±6kV. Level: Perf. Criteria A
Radiated immunity
- Conditions: EN61000-4-3; 20V/m. Level: Perf. Criteria A
Fast transient
- Conditions: EN61000-4-4; ±2KV. Level: Perf. Criteria A
- Conditions: OFQC60-36S; With 2pcs of aluminum electrolytic capacitor
- Conditions: OFQC60-72S; With 2pcs of aluminum electrolytic capacitor
Surge
- Conditions: EN61000-4-5; EN55024: ±1kV and EN50155:±2kV. Level: Perf. Criteria A
- Conditions: OFQC60-36S; With 2pcs of aluminum electrolytic capacitor.
- Conditions: OFQC60-72S; With 2pcs of aluminum electrolytic capacitor.
Conducted immunity
- Conditions: EN61000-4-6; 10 Vr.m.s. Level: Perf. Criteria A
Power frequency magnetic field
- Conditions: EN61000-4-8; 100 A/m continuous; 1,000 A/m 1 second. Level: Perf. Criteria A

Input Range Vdc	Output Voltage Vdc	Output Current at Full Load A	Input Current at No Load mA	Efficiency %	Model Number	Maximum Capacitor Load μF
9 - 75	5	20.0	20	88	OFQC100-36S5	46,000
9 - 75	12	8.35	30	88	OFQC100-36S12	7,000
9 - 75	15	6.7	30	89	OFQC100-36S15	4,500
9 - 75	24	4.2	20	88	OFQC100-36S24	1,800
9 - 75	28	3.6	20	88	OFQC100-36S28	1,300
9 - 75	48	2.1	20	90	OFQC100-36S48	430
9 - 75	53	1.92	20	90	OFQC100-36S53	370
14 - 160	5	20.0	15	88	OFQC100-72S5	40,000
14 - 160	12	8.35	20	88	OFQC100-72S12	7,000
14 - 160	15	6.7	20	88	OFQC100-72S15	4,500
14 - 160	24	4.2	15	88	OFQC100-72S24	1,800
14 - 160	28	3.6	15	88	OFQC100-72S28	1,300
14 - 160	48	2.1	15	89	OFQC100-72S48	430
14 - 160	53	1.92	15	89	OFQC100-72S53	370

Download Data Sheet | Get A Quote Now

Power (Watts)

Input Voltage (Vdc)

Output Voltage (Vdc)

Output Current

Dimensions

Package