Browse Categories
PayPal Accept credit cards with QuickBooks Payments
Mailing Lists

Polytron HWB75 Series, DC-DC Converters, 75 Watt, Half Brick, 4:1 Ultra Wide Input Range, 2.28" x 1.45" x 0.50"


Price (Each): Call or e-mail for quotes or to order.
Available to Order
Item Number: HWB75

Half-brick for railway applications

Ideal for railways applications, our 75 watt half-brick DC-DC converter features high efficiency up to 91%, 3000 Vac reinforced insulation and no minimum load required. This series meets EN50155, EN50121-3 and EN61373 requirements and UL60950-1, EN60950-1 and IEC60950-1 safety standards.

HWB75 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
Single Output
HWB75-24S33 9 – 36 3.3 20 85 87 60600μF
HWB75-24S5 5 15 120 88 30000μF
HWB75-24S12 12 6.3 185 88 5250μF
HWB75-24S15 15 5 185 88 3330μF
HWB75-24S24 24 3.2 85 87 1330μF
HWB75-24S28 28 2.7 85 87 960μF
HWB75-24S48 48 1.6 85 87 330μF
HWB75-48S33 18 - 75 3.3 20 60 88 60600μF
HWB75-48S5 5 15 60 90 30000μF
HWB75-48S12 12 6.3 90 90 5250μF
HWB75-48S15 15 5 50 89 3330μF
HWB75-48S24 24 3.2 50 88 1330μF
HWB75-48S28 28 2.7 50 88 960μF
HWB75-48S48 48 1.6 50 87 330μF
HWB75-110S33 43 - 160  3.3 20 10 89 60600μF
HWB75-110S5 5 15 10 91 30000μF
HWB75-110S12 12 6.3 10 91  5250μF
HWB75-110S15 15 5 10 91 3330μF
HWB75-110S24 24 3.2 10 90 1330μF
HWB75-110S28  28 2.7 10 90 960μF
HWB75-110S48  48 1.6 10 90 330μF 



Input and Output Specifications:


INPUT

  • Voltage range
    • 24 Vdc nominal input: 9 to 36 Vdc
    • 48 Vdc nominal input: 18 to 75 Vdc
    • 110 Vdc nominal input: 43 to 160 Vdc
  • Start up voltage
    • 24 Vdc nominal input: 9 Vdc
    • 48 Vdc nominal input: 18 Vdc
    • 110 Vdc nominal input: 43 Vdc
  • Shutdown voltage
    • 24 Vdc nominal input: 7.5 Vdc
    • 48 Vdc nominal input: 16 Vdc
    • 110 Vdc nominal input: 36 Vdc
  • Start up time
    • Power up, 110 Vdc nominal input: 60 mS
    • Power up, others: 25 mS
    • Remote ON/OFF, 110 Vdc nominal input: 60 mS
    • Remote ON/OFF, others: 25 mS
  • Input surge voltage
    • 24 Vdc nominal input: 50 Vdc
    • 48 Vdc nominal input: 100 Vdc
    • 110 Vdc nominal input: 185 Vdc
  • Input filter: Pi type
  • Remote ON/OFF
    • Positive logic (Option)
      • DC-DC ON: Open or 3 to 12 Vdc
      • DC-DC OFF: Short or 0 to 1.2 Vdc
    • Negative logic (Standard)
      • DC-DC ON: Short or 0 to 1.2 Vdc
      • DC-DC OFF: 3 to 12 Vdc
  • Input current of control pin: -0.5 to 1 mA
  • Remote off input current: 3 mA

OUTPUT

  • Voltage accuracy: ±1%
  • Line regulation
    • Low line to high line at full load: ±0.1%
  • Load regulation
    • No load to full load: -20 to 10%
  • Voltage and adjustability: -20 to 10%
    • Maximum output deviation inclusive of remote sense
  • Remote sense: 10%
  • Ripple and noise (measured by 20 MHz bandwidth)
    • 3.3 and 5 Vout: 75 to 100 mVp-p
    • 12 and 15 Vout: 100 to 125 mVp-p
    • 24 and 28 Vout: 200 to 250 mVp-p
    • 48 Vout: 300 to 350 mVp-p
  • Temperature coefficient: ±0.02%/°C
  • Transient response recovery time
    • 25% load step change: 200 to 250μS
  • Over voltage protection: 115 to 130%
  • Over load protection
    • Percent of lout rated, hiccup mode, 110Vin(nom): 150%
    • Others: 110 to 140%
  • Short circuit protection: continuous, automatic recovery

 

 

More Specifications: 

GENERAL

  • Efficiency: 87 to 91%
  • Isolation voltage
    • Input to output: 3000 Vac, min. 1 minute
    • Input to case: 1500 Vac, min. 1 minute
  • Isolation voltage
    • Input to output: 2250 Vdc, min. 1 minute
    • Input to case: 1600 Vdc, min. 1 minute
  • Isolation resistance: 500 Vdc
  • Isolation capacitance: 2500 pF
  • Switching frequency
    • 110 Vdc nominal input: 270 to 330 kHz

 

ENVIRONMENTAL

  • Operating case temperature
    • Base-plate: -40 to 105°C
  • Over temperature protection: 115°C
  • Short temperature range
    • Terminal block type: -40 to 105°C
    • Others: -55 to 125°C
  • Thermal impedance
    • Module without assembly option: 6.7°C/W
    • Heat sink type with 0.25" height: 5.4°C/W
    • Heat sink type with 0.45" height: 4.7°C/W
  • Thermal shock: MIL-STD-810F
  • Shock: EN61373, MIL-STD-810F
  • Vibration: EN61373, MIL-STD-810F
  • Relative humidity: 5 to 95%

 

PHYSICAL 
  • Safety standards:
    • UL60950-1, EN60950-1, IEC60950-1, EN50155
  • Case material
    • 24 and 48 Vin(nom): Metal
    • 100 Vin(nom): aluminum base-plate with plastic case
  • Base material
    • 24 and 48 Vin(nom): FR4 PCB
  • Potting material: silicone (UL94 V-0)
  • Weight: 97 g. (3.42 oz.)
  • MTBF: 3.362 x 105, MIL-HDBK-217F, full load

EMC CHARACTERISTICS

  • EMI
    • EN55011: Class A
    • EN55022: Class B
  • ESD, EN61000-4-2, Perd Criteria A
    • Air: ±8kV
    • Contact: ±6kV
  • Radiated immunity
    • EN6100-4-3: 20 V/m (Perf. Criteria A)
  • Fast transient
    • EN6100-4-4: ±2kV (Perf. Criteria A)
  • Surge: EN6100-4-5
    • EN55024: ±2kV
    • EN50155: ±2kV
  • Conducted immunity
    • EN6100-4-6: 10Vr.m.s (Perf. Criteria A)

 

 

 

 

 

Related Products

Polytron DSB(H)1 Series DC-DC Converters, 1 Watt Single and Dual Output Regulated, 4:1 Wide Input Range 0.52" x 0.36" x 0.40"
Polytron DSB(H)1 Series DC-DC Converters, 1 Watt Single and Dual Output Regulated, 4:1 Wide Input Range 0.52" x 0.36" x 0.40"
Extra small SMD or DIP package With available 3000 Vdc input to output isolation, our 1 watt 4:1 wide input DSB(H)1 series DC-DC converter features no minimum load requirement, continuous short circuit protection and an extra small SMD or DIP package.
Polytron HEA2 Series DC-DC Converters, 2 Watt Single and Dual Output 2:1 Wide Input Range 1.25” × 0.80” × 0.40” (31.8 × 20.3 × 10.2 mm)
Polytron HEA2 Series DC-DC Converters, 2 Watt Single and Dual Output 2:1 Wide Input Range 1.25” × 0.80” × 0.40” (31.8 × 20.3 × 10.2 mm)
Extra wide input range (4.5-13.2V, 9-18V, 18-36V, 36-75V), wide temperature range (-40 to +105º C) and high efficiency up to 86 percent. Housed in a SIP 8 package, devices have no minimum load requirement and include remote ON/OFF, short cir. protection.
Polytron HEB2 Series DC-DC Converters, 2 Watt Single and Dual Output 4:1 Wide Input Range 1.86” × 0.16” × 0.36” (21.84 × 4.06 × 9.14 mm)
Polytron HEB2 Series DC-DC Converters, 2 Watt Single and Dual Output 4:1 Wide Input Range 1.86” × 0.16” × 0.36” (21.84 × 4.06 × 9.14 mm)
Extra wide input range (4.5–18 V, 9–36 V and 18–75 V), wide temperature range (-40 to +105º C) and high efficiency up to 82 percent. Housed in a SIP 8 package, no minimum load requirement, remote ON/OFF, short circuit and undervoltage protection.
Polytron SPU1 Series DC-DC Converters, 1 Watt Single & Dual Output, Unregulated single inline package 0.77" x 0.24" x 0.40"
Polytron SPU1 Series DC-DC Converters, 1 Watt Single & Dual Output, Unregulated single inline package 0.77" x 0.24" x 0.40"
With 80% efficiency, our 1 watt single and dual output DC-DC converter offers the options of 1000 Vdc or 3000 Vdc input/output isolation. The design also features 1-watt unregulated output power and a miniature single-inline package (SIP).
Polytron SW1 Series DC-DC Converters, 1 to 2 Watt, Single and Dual Output, 1.25” x 0.34” x 0.57”
Polytron SW1 Series DC-DC Converters, 1 to 2 Watt, Single and Dual Output, 1.25” x 0.34” x 0.57”
Low cost single-inline package Our low cost 1-2 watt single and dual output DC-DC converter has tight regulation and a miniature single-inline package.
Polytron SWA2 Series DC-DC Converters, 2 Watt Single and Dual Output With Miniature SIP Package 0.86" x 0.36" x 0.44"
Polytron SWA2 Series DC-DC Converters, 2 Watt Single and Dual Output With Miniature SIP Package 0.86" x 0.36" x 0.44"
Regulated design, wide input voltage range. Our 2 watt single and dual DC-DC converter offers continuous short circuit protection and has low ripple and noise. This design also features an external on/off control and a SIP package of 0.86" x 0.36" x 0.44"
Polytron SWB3 Series DC-DC Converters, 3 Watt Single & Dual Output, Regulated Wide Input, 4:1 0.86" x 0.36" x 0.44"
Polytron SWB3 Series DC-DC Converters, 3 Watt Single & Dual Output, Regulated Wide Input, 4:1 0.86" x 0.36" x 0.44"
Our 3 watt single and dual output DC-DC converter with a 4:1 input voltage range provides continuous short circuit protection, a SIP package of 0.86" x 0.36" x 0.44" and 82% efficiency. This design also has an external on/off control and is RoHS compliant
Polytron SWBR3 Series DC-DC Converters, 3 Watt 4:1 Wide Input Range, Miniature SIP Package for Railway Applications 0.86 x 0.36 x 0.44
Polytron SWBR3 Series DC-DC Converters, 3 Watt 4:1 Wide Input Range, Miniature SIP Package for Railway Applications 0.86 x 0.36 x 0.44
High efficiency up to 83%, low ripple and noise and 3,000-Vdc input to output isolation. Miniature SIP package of 0.86 x 0.36 x 0.44 inches, ON/OFF control, low standby power and short circuit and overcurrent protection. Meets EN50155 and EN45545-2.
Polytron SWU0.75 Series DC-DC Converters, 0.75 Watt, Single and Dual Output, 0.77” x 0.24” x 0.40”
Polytron SWU0.75 Series DC-DC Converters, 0.75 Watt, Single and Dual Output, 0.77” x 0.24” x 0.40”
Compact and efficient design Our low cost 0.75 watt single and dual output DC-DC converter is highly efficient with 500 Vdc input/output isolation and a miniature single-inline package.
Polytron SWU1/MHIA Series DC-DC Converters, 1 Watt Single and Dual Output, 7-pin SIP Package for Medical Applications 0.77” × 0.39” × 0.5”
Polytron SWU1/MHIA Series DC-DC Converters, 1 Watt Single and Dual Output, 7-pin SIP Package for Medical Applications 0.77” × 0.39” × 0.5”
Single- and dual- unregulated-output, 1-watt DC-DC converters designed for medical applications. Output voltages up to ±15 V and output currents up to 200 mA, high efficiency up to 81%, 4.2 KV AC/6 KV DC isolation.EN60601-1, ANSI/AAMI ES60601-1.
Polytron TW3 Series DC-DC Converters, 3 Watt Single & Dual Output, Isolated, Regulated 24 Pin DIP Package 1.25" x 0.80" x 0.40"
Polytron TW3 Series DC-DC Converters, 3 Watt Single & Dual Output, Isolated, Regulated 24 Pin DIP Package 1.25" x 0.80" x 0.40"
With a high performance pi input filter, our highly efficient and reliable 3 watt single and dual DC-DC converter has highly regulated isolated outputs, 100% burn-in, and no external components. Isolated, Regulated 24 Pin DIP Package.
Polytron TWA3 Series DC-DC Converters, 3 Watt Single & Dual Output, 24 Pin DIP Package 1.25” x 0.80” x 0.50”
Polytron TWA3 Series DC-DC Converters, 3 Watt Single & Dual Output, 24 Pin DIP Package 1.25” x 0.80” x 0.50”
With no external components, our 3 watt single output model of DC-DC converter has short circuit protection, a 2:1 wide input range and new 3.3 Vdc outputs. Dual output models are also available. Regulated 24 Pin DIP Package. Efficiency to 76% @ FL.
Polytron TWA3/MHIA5 Series DC-DC Converters, 3 Watt Single and Dual Output 2:1 Wide Input Range for Medical Applications 1.25" x 0.80" x 0.40"
Polytron TWA3/MHIA5 Series DC-DC Converters, 3 Watt Single and Dual Output 2:1 Wide Input Range for Medical Applications 1.25" x 0.80" x 0.40"
Our 3 watt 2:1 wide input TWA3/MHIA DC-DC converter features a clearance & creepage distance of 8 mm/2 MOPP, EMI class A filter & miniature DIP package. Also features reinforced insulation & operating temperatures between -40 & 105°C with derating.
Polytron TWU1 Series DC-DC Converters, 0.5 to 1 Watt Single Output 0.50” x 0.40” x 0.25”
Polytron TWU1 Series DC-DC Converters, 0.5 to 1 Watt Single Output 0.50” x 0.40” x 0.25”
DC-DC converters with internal SMD construction Our customizable 0.5 to 1.0 watt single output DC-DC converter features a low profile, miniature DIP package, 1000 Vdc input/output isolation and internal SMD Construction.

Product Reviews

(0 Ratings, 0 Reviews)