Browse Categories
PayPal Accept credit cards with QuickBooks Payments
Mailing Lists

Polytron TWA12 Series DC-DC Converters, 12 Watt, Wide Input, 1.25" x 0.80" x 0.40" (31.8 x 20.3 x 10.2 mm)


Product Options

Daburn Part Number:

Industrial DC/DC Converters in DIP and SMD Packages

TWA12 Series DC/DC converters feature 2:1 wide input range, 1600-V isolation and remote ON/OFF control for energy savings. There is no minimum load requirement, and efficiencies are as high as 88 percent. Available in 1.26 x 1.00 x 0.44-inch SMD or 1.25 x 0.80 x 0.40-inch DIP packages, the TWA12 Series is well-suited for industrial and ITE applications. The units come with an internal EN55032 Class A-compliant filter and meet IEC/UL/EN60950-1 and IEC/UL/EN62368-1 safety standards. Additional safeguards include over current, over voltage and short circuit protections.


TWA12 Series Specification Sheet PDF
 


Daburn Part Number Input Voltage
Range (Vdc)
Output Voltage
(Vdc)
Output Current
at full load A
Input Current
at No load mA
Efficiency
%
Maximum
Capacitor Load
μF
TWA12-12S25 9-18 2.5 3500 50  82  2000
TWA12-12S33 9-18 3.3 3500 60  84 2000
TWA12-12S5 9-18 5.1 2400 53  86 2000
TWA12-12S12 9-18 12 1000 15  86 430
TWA12-12S15 9-18 15 800 17  86 300
TWA12-24S25 18 - 36 2.5 3500 36  83 2000
TWA12-24S33 18 - 36 3.3 3500 36  85  2000
TWA12-24S5 18 - 36 5.1 2400  35  87  2000
TWA12-24S12 18 - 36 12 1000  16  87  430
TWA12-24S15 18 - 36 15 800  17  87  300
TWA12-48S25 36 - 75 2.5 3500  10  83  2000
TWA12-48S33 36 - 75 3.3 3500  14  85  2000
TWA12-48S5 36 - 75 5.1 2400 23 87  2000
TWA12-48S12 36 - 75 12 1000 11  87 430
TWA12-48S15 36 - 75 15 800 87 300
TWA12-12-5 9 - 18 ±5 ±1200 24 82 ±1250
TWA12-12-12 9 - 18 ±12 ±500 19  87 ±200
TWA12-12-15 9 - 18 ±15 ±400 24 87 ±120
TWA12-24-5 18 - 36 ±5 ±1200 15  83 ±1250
TWA12-24-12 18 - 36 ±12 ±500 15  88 ±200
TWA12-24-15 18 - 36 ±15 ±400 18  88 ±120
TWA12-48-5 36 - 75 ±5 ±1200 6 83 ±1250
TWA12-48-12 36 - 75 ±12 ±500 6 88 ±200
TWA12-48-15 36 - 75 ±15 ±400 88 ±120


 

Input and Output Specifications:

INPUT

  • Voltage range, Vdc:
    • 9 Min., 12 Typ., 18 Max., 12 Vin(nom)
    • 18 Min., 24 Typ., 36 Max., 24 Vin(nom)
    • 36 Min., 48 Typ., 75 Max., 48 Vin(nom)
  • Start up voltage, Vdc
    • 9 Max., 12 Vin (nom)
    • 18 Max., 24 Vin (nom)
    • 36 Max., 48 Vin (nom)
  • Shutdown voltage, Vdc
    • 7 Min., 8 Typ., 8.8 Max., 12 Vin(nom)
    • 15 Min., 16 Typ., 17.5 Max., 24 Vin(nom)
    • 32 Min., 33 Typ., 35 Max., 48 Vin(nom)
  • Start up time, ms
    • 450 Typ. Power up, Constant resistive load
    • 5 Typ. Remote ON/OFF
  • Input surge voltage, Vdc
    • 100 ms, Max.
    • 36 Max., 12 Vin(nom)
    • 50 Max., 24 Vin(nom)
    • 100 Max., 48 Vin(nom)
  • Input filter: Pi type
  • Remote ON/OFF
    • Referred to -INPUT pin
    • Open or 3 - 12 Vdc, DC-DC ON, Positive logic
    • Short or 0 - 1.2 Vdc, DC-DC OFF, Positive logic
    • -0.5 - 0.5 mA, Input current of Ctrl pin
    • 2.5 mA Typ. Remote off input current

 

OUTPUT

  • Voltage accuracy, %: ±1.2
  • Line regulation, %:
    • ±0.2, Low line to high line at full load, Single
    • ±0.5, Low line to high line at full load, Dual
  • Load regulation, %:
    • No load to full load
    • ±1, DIP Type, Single, 2.5Vout
    • ±0.5, DIP Type, Single, Others
    • ±1, DIP Type, Dual
    • ±1, SMD Type, Single, 2.5Vout
    • ±1, SMD Type, Single, Others
    • ±1, SMD Type, Dual
  • Cross regulation, %: ±5, Asymmetrical load 25%/100% FL, Dual
  • Ripple and noise, mVp-p: 85 Typ., Measured by 20MHz bandwidth
  • Temperature coefficient, %/ºC: ±0.02
  • Transient response recovery time, μs: 250 Typ., 25% load step change
  • Over voltage protection, Vdc:
    • 3.9 Typ., 2.5Vout
    • 3.9 Typ., 3.3Vout
    • 6.2 Typ., 5.1Vout
    • 15 Typ., 12Vout
    • 18 Typ., 15Vout
  • Over load protection, %: 150 Typ., % of lout rated
  • Short circuit protection: Continuous, automatic recovery

 

More Specifications:

GENERAL

  • Isolation Voltage:
    • 1 minute
    • 1600 Min., DIP Type, Input to Output
    • 1600 Min., DIP Type, Inout (Output) to Case
    • 1600 Min., SMD Type, Input to Output
    • 1000 Min., SMD Type, Input (Output) to Case
  • Isolation resistance, GΩ: 1 Min., 500Vdc
  • Isolation capacitance, pF: 1200 Max.
  • Switching frequency, kHz: 360 Min., 400 Typ., 440 Max.

ENVIRONMENTAL

  • Isolation Voltage:
    • 1 minute
    • 1600 Min., DIP Type, Input to Output
    • 1600 Min., DIP Type, Inout (Output) to Case
    • 1600 Min., SMD Type, Input to Output
    • 1000 Min., SMD Type, Input (Output) to Case
  • Isolation resistance, GΩ: 1 Min., 500Vdc
  • Isolation capacitance, pF: 1200 Max.
  • Switching frequency, kHz: 360 Min., 400 Typ., 440 Max.

 

 

EMC CHARACTERISTICS

  • Class A, Class B
  • ESD: EN61000-4-2, Air ±8kV and Contact ±6kV, Perf. Criteria A
  • Radiated immunity: EN61000-4-3, 10V/m, Perf. Criteria A
  • Fast transient: EN61000-4-4, ±2KV, Perf. Criteria A
  • Surge: EN61000-4-5, ±1KV, Perf. Criteria A
  • Conducted immunity: EN61000-4-6, 10Vr.m.s, Perf. Criteria A
  • Power frequency magnetic field: EN61000-4-8, 100A/m continuous; 1000A/m 1 second, Perf. Criteria A

 PHYSICAL SPECIFICATIONS

  • Design meet safety standard: IEC/EN/UL/EN60950-1, 62368, UL:E193009, CB:UL(Demko)
  • Case material: Nickel coated copper
  • Base material: Non-conductive black plastic
  • Potting material: Epoxy (UL94 V-0)
  • Dimensions:
    • DIP Type: 1.25" x 0.80" x 0.40" (31.8 x 20.3 x 10.2 mm)
    • SMD Type: 1.26" x 1.00" x 0.44" (32.0 x 25.4 x 11.20 mm)
  • Weight: 18g (0.62oz)
  • MTBF: 2.064 × 106 hrs, MIL-HDBK-217F

Related Products

Polytron LWA10 Series DC-DC Converters, 10 Watt Single and Dual Output Regulated, Wide Input, 2:1 and 4:1 1.00" x 2.00" x 0.40"
Polytron LWA10 Series DC-DC Converters, 10 Watt Single and Dual Output Regulated,  Wide Input, 2:1 and 4:1 1.00" x 2.00" x 0.40"
Our 10 watt single and dual output DC-DC converter is epoxy encapsulated and features six-sided continuous metal shielding. With operating temperatures up to 85°C, this design has short circuit and overvoltage protection and input/output isolation.
Polytron SWB9 Series DC-DC Converters, 9 Watt Single and Dual Output, Ultra Wide Input, 4:1 0.86" x 0.36" x 0.44"
Polytron SWB9 Series DC-DC Converters, 9 Watt Single and Dual Output, Ultra Wide Input, 4:1 0.86" x 0.36" x 0.44"
With a 4:1 ultra wide input range, our SWB9 series of DC-DC converters feature a miniature SIP package of 0.86 x 0.36 x 0.44 inches, fixed switching frequency and input/output isolation up to 1600 Vdc. Also features continuous short circuit protection.
Polytron SWBR6 Series DC-DC Converters, 6 Watt 4:1 Wide Input Range, Miniature SIP Package for Railway Applications
Polytron SWBR6 Series DC-DC Converters, 6 Watt 4:1 Wide Input Range, Miniature SIP Package for Railway Applications
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.

Product Reviews

(0 Ratings, 0 Reviews)