Polytron OFQC60 Series DC-DC Converters, 60 Watt, 12:1 Extremely Wide Input Range, 2.28" X 1.45" X 0.50"

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Item Number: OFQC60

OFQC60 DC-DC Converters

Our OFQC60 Series of isolated 60-W single output DC-DC converters is available in two extremely wide 12:1 input ranges of 9-75V and 14-160V DC, with each offering output voltages of 5, 12, 15, 24, 28, 48 or 53V DC. The units come in a plastic case with aluminum baseplate and have an industry-standard quarter-brick footprint. Featuring efficiencies as high as 92 percent, up to 3000V AC isolation voltage, and remote ON/OFF, these DC-DC converters meet EN 50155 standards for railway applications. Built-in safeguards include over temperature, overcurrent, overvoltage, undervoltage and short circuit protections. The operating baseplate temperature range is -40°C to +105°C, and heat sink options are available. OFQC60 DC-DC converters comply to RoHS and REACH, with CE Mark pending.

OFQC60 Series Specification Sheet PDF

Daburn Part Number	Input Voltage Range (Vdc)	Output Voltage (Vdc)	Output Current Full Load (A)	Input Current No Load (mA)	Efficiency %	Max. Capacitor Load µF
OFQC60-36S5	9 - 75	5	12	20	89	24000 μF
OFQC60-36S12		12	5	20	89	4200μF
OFQC60-36S15		15	4	20	89	2700μF
OFQC60-36S24		24	2.5	20	90	1100μF
OFQC60-36S28		28	2.15	20	90	780μF
OFQC60-36S48		48	1.25	20	92	260μF
OFQC60-36S53		53	1.14	20	90	220μF
OFQC60-72S5	14 - 160	5	12	20	89	24000 μF
OFQC60-72S12		12	5	12	89	4200μF
OFQC60-72S15		15	4	15	89	2700μF
OFQC60-72S24		24	2.5	15	90	1100μF
OFQC60-72S28		28	2.15	12	90	780μF
OFQC60-72S48		48	1.25	12	90	260μF
OFQC60-72S53		53	1.14	12	90	220μF

Input and Output Specifications:

INPUT

Operating Input voltage range, Vdc
- 9 Min., 36 Typ., 75 Max. - 36 Vin(nom)
- 14 Min., 72 Typ., 160 Max. - 72 Vin(nom)
Start up voltage, Vdc
- 9 Max. - 36 Vin(nom),
- 14 Max. - 72 Vin(nom)
Shutdown voltage, Vdc
- 7.3 Min., 7.7 Typ., 8.1 Max. - 36 Vin(nom)
- 10 Min., 11 Typ., 12 Max. - 72 Vin(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.
  - 36 Vin(nom), 100 mS, Max.
- 12 Max.
  - 72 Vin(nom)
Input surge voltage, Vdc
- 100 Max.
  - 36 Vin(nom), 100 mS, Max.
- 185 Max.
  - 72 Vin(nom)
Input filter(1)
- 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 of 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, %
- 120 Min., 140 Max.: % of lout rated; Hiccup mode
Short circuit protection: Continuous, automatic recovery

More Specifications:

GENERAL

Isolation voltage
- 1 minute, 72Vin(nom)
- Input to output
- 3000 Min. Vac
Isolation resistance, GΩ
- 500Vdc
- 1 Min.
Isolation capacitance, pF
- 1000 Max.
Switching frequency, kHz: 180 Typ.

ENVIRONMENTAL

Operating case temperature, °C
- With derating: -40 Min. 105 Max.
Max. case temperature, oC: 105 Max.
Over temperature protection, oC: 110 Typ.
Storage temperature range, oC: -55 Min. 125 Max.
Thermal impedance, oC/W
- DC-DC module: 8.27 Typ.
- Only mount on the iron base-plate: 2.43 Typ.
- Heat-sink type with 0.24” height: 7.40 Typ.
- Heat-sink type with 0.5” height: 6.16 Typ.
Thermal shock: EN61373, MIL-STD-810F
Vibration: EN61373, MIL-STD-810F
Relative humidity: 5% to 95% RH

PHYSICAL

Safety standards: IEC/UL/EN60950-1, IEC/UL/EN62368-1, EN50155, EN45545-2
Case material: Aluminum base-plate with plastic case
Potting material: Silicone (UL94 V-0)
Weight: 64g (2.26oz)
7.381 × 105 hrs , MIL-HDBK-217F, Full load

EMC CHARACTERISTICS

EMI
- EN55011, EN55032: With external components Class A Class B
ESD: EN61000-4-2 Air ±8kV and Contact ±6kV Perf. Criteria A
Radiated immunity
- EN61000-4-3 20V/m Perf. Criteria A
Fast transient
- EN61000-4-4 ±2KV Perf. Criteria A
- OFQC60-36S With 2pcs of aluminum electrolytic capacitor
- OFQC60-72S With 2pcs of aluminum electrolytic capacitor
Surge(1)
- EN61000-4-5 EN55024: ±1kV and EN50155:±2kV Perf. Criteria A
- OFQC60-36S With 2pcs of aluminum electrolytic capacitor
- OFQC60-72S With 2pcs of aluminum electrolytic capacitor
Conducted immunity
- EN61000-4-6 10 Vr.m.s Perf. Criteria A
Power frequency magnetic field
- EN61000-4-8 100 A/m continuous; 1000 A/m 1 second Perf. Criteria A

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