WDBR & WDBR-UL Ultra-Low-Profile Power Resistors

TT Electronics WDBR and WDBR-UL Ultra-Low-Profile Power Resistors are ideal for dynamic braking, inrush limit, and snubber circuits. These resistors offer up to 7kW peak power, a low inductance design, and high isolation, even after failsafe overload fusing. The RoHS-compliant, non-flammable construction features a high integrity dielectric layer applied to a machined stainless steel substrate. Thick-film conductor and resistor patterns are printed, fired, and protected with a high-temperature overglaze. The termination pads include tinned with solder and optional terminals or soldered-on leads. TT Electronics WDBR and WDBR-UL Ultra-Low-Profile Power Resistors are single fixing heatsink mountable, and the WDBR-UL series is UL 508 certified.

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Qty. RoHS ECAD Model Resistance
Power Rating
Tolerance
Termination Style
Temperature Coefficient
Length
Width
Height
Minimum Operating Temperature
Maximum Operating Temperature
Series
Packaging
IRC / TT Electronics Planar Resistors - Chassis Mount 12 ohm 10% 7kW Solder Pads
Datasheet
Non-Stocked
Min.: 100
Mult.: 20

12 Ohms 7 kW 10 % Solder Pad 600 PPM / C 152.4 mm 101.6 mm 1.5 mm - 55 C + 200 C WDBR-UL Bulk
IRC / TT Electronics Planar Resistors - Chassis Mount 12 ohm 10% 7kW Flying Leads
Datasheet
Non-Stocked
Min.: 100
Mult.: 20

12 Ohms 7 kW 10 % Wire Lead 600 PPM / C 152.4 mm 101.6 mm 1.5 mm - 55 C + 200 C WDBR-UL Bulk
IRC / TT Electronics Planar Resistors - Chassis Mount 150 ohm 10% 7kW Solder Pads
Datasheet
Non-Stocked
Min.: 100
Mult.: 20

150 Ohms 7 kW 10 % Solder Pad 600 PPM / C 152.4 mm 101.6 mm 1.5 mm - 55 C + 200 C WDBR-UL Bulk
IRC / TT Electronics Planar Resistors - Chassis Mount 150 ohm 10% 7kW Flying Leads
Datasheet
Non-Stocked
Min.: 100
Mult.: 20

150 Ohms 7 kW 10 % Wire Lead 600 PPM / C 152.4 mm 101.6 mm 1.5 mm - 55 C + 200 C WDBR-UL Bulk
IRC / TT Electronics Planar Resistors - Chassis Mount 15 ohm 10% 7kW Solder Pads
Datasheet
Non-Stocked
Min.: 100
Mult.: 20

15 Ohms 7 kW 10 % Solder Pad 600 PPM / C 152.4 mm 101.6 mm 1.5 mm - 55 C + 200 C WDBR-UL Bulk
IRC / TT Electronics Planar Resistors - Chassis Mount 15 ohm 10% 7kW Flying Leads
Datasheet
Non-Stocked
Min.: 100
Mult.: 20

15 Ohms 7 kW 10 % Wire Lead 600 PPM / C 152.4 mm 101.6 mm 1.5 mm - 55 C + 200 C WDBR-UL Bulk
IRC / TT Electronics Planar Resistors - Chassis Mount 20 ohm 10% 7kW Solder Pads
Datasheet
Non-Stocked
Min.: 100
Mult.: 20

20 Ohms 7 kW 10 % Solder Pad 600 PPM / C 152.4 mm 101.6 mm 1.5 mm - 55 C + 200 C WDBR-UL Bulk
IRC / TT Electronics Planar Resistors - Chassis Mount 20 ohm 10% 7kW Flying Leads
Datasheet
Non-Stocked
Min.: 100
Mult.: 20

20 Ohms 7 kW 10 % Wire Lead 600 PPM / C 152.4 mm 101.6 mm 1.5 mm - 55 C + 200 C WDBR-UL Bulk
IRC / TT Electronics Planar Resistors - Chassis Mount 22 ohm 10% 7kW Solder Pads
Datasheet
Non-Stocked
Min.: 100
Mult.: 20

22 Ohms 7 kW 10 % Solder Pad 600 PPM / C 152.4 mm 101.6 mm 1.5 mm - 55 C + 200 C WDBR-UL Bulk
IRC / TT Electronics Planar Resistors - Chassis Mount 22 ohm 10% 7kW Flying Leads
Datasheet
Non-Stocked
Min.: 100
Mult.: 20

22 Ohms 7 kW 10 % Wire Lead 600 PPM / C 152.4 mm 101.6 mm 1.5 mm - 55 C + 200 C WDBR-UL Bulk
IRC / TT Electronics Planar Resistors - Chassis Mount 25 ohm 10% 7kW Solder Pads
Datasheet
Non-Stocked
Min.: 100
Mult.: 20

25 Ohms 7 kW 10 % Solder Pad 600 PPM / C 152.4 mm 101.6 mm 1.5 mm - 55 C + 200 C WDBR-UL Bulk
IRC / TT Electronics Planar Resistors - Chassis Mount 25 ohm 10% 7kW Flying Leads
Datasheet
Non-Stocked
Min.: 100
Mult.: 20

25 Ohms 7 kW 10 % Wire Lead 600 PPM / C 152.4 mm 101.6 mm 1.5 mm - 55 C + 200 C WDBR-UL Bulk
IRC / TT Electronics Planar Resistors - Chassis Mount 47 ohm 10% 7kW Solder Pads
Datasheet
Non-Stocked
Min.: 100
Mult.: 20

47 Ohms 7 kW 10 % Solder Pad 600 PPM / C 152.4 mm 101.6 mm 1.5 mm - 55 C + 200 C WDBR-UL Bulk
IRC / TT Electronics Planar Resistors - Chassis Mount 47 ohm 10% 7kW Flying Leads
Datasheet
Non-Stocked
Min.: 100
Mult.: 20

47 Ohms 7 kW 10 % Wire Lead 600 PPM / C 152.4 mm 101.6 mm 1.5 mm - 55 C + 200 C WDBR-UL Bulk
IRC / TT Electronics Planar Resistors - Chassis Mount 50 ohm 10% 7kW Solder Pads
Datasheet
Non-Stocked
Min.: 100
Mult.: 20

50 Ohms 7 kW 10 % Solder Pad 600 PPM / C 152.4 mm 101.6 mm 1.5 mm - 55 C + 200 C WDBR-UL Bulk
IRC / TT Electronics Planar Resistors - Chassis Mount 50 ohm 10% 7kW Flying Leads
Datasheet
Non-Stocked
Min.: 100
Mult.: 20

50 Ohms 7 kW 10 % Wire Lead 600 PPM / C 152.4 mm 101.6 mm 1.5 mm - 55 C + 200 C WDBR-UL Bulk
Welwyn Components / TT Electronics Planar Resistors - Chassis Mount 100 ohm 10% 1.5kW Solder Pads
Datasheet
Non-Stocked
Min.: 500
Mult.: 100

100 Ohms 1.5 kW 10 % Solder Pad 600 PPM / C 49.3 mm 35.9 mm 0.9 mm - 55 C + 200 C WDBR-UL Bulk
Welwyn Components / TT Electronics Planar Resistors - Chassis Mount 100 ohm 10% 1.5kW Flying Leads
Datasheet
Non-Stocked
Min.: 520
Mult.: 40

100 Ohms 1.5 kW 10 % Wire Lead 600 PPM / C 49.3 mm 35.9 mm 0.9 mm - 55 C + 200 C WDBR-UL Bulk
Welwyn Components / TT Electronics Planar Resistors - Chassis Mount 12 ohm 10% 1.5kW Solder Pads
Datasheet
Non-Stocked
Min.: 500
Mult.: 100

12 Ohms 1.5 kW 10 % Solder Pad 600 PPM / C 49.3 mm 35.9 mm 0.9 mm - 55 C + 200 C WDBR-UL Bulk
Welwyn Components / TT Electronics Planar Resistors - Chassis Mount 12 ohm 10% 1.5kW Flying Leads
Datasheet
Non-Stocked
Min.: 520
Mult.: 40

12 Ohms 1.5 kW 10 % Wire Lead 600 PPM / C 49.3 mm 35.9 mm 0.9 mm - 55 C + 200 C WDBR-UL Bulk
Welwyn Components / TT Electronics Planar Resistors - Chassis Mount 150 ohm 10% 1.5kW Solder Pads
Datasheet
Non-Stocked
Min.: 500
Mult.: 100

150 Ohms 1.5 kW 10 % Solder Pad 600 PPM / C 49.3 mm 35.9 mm 0.9 mm - 55 C + 200 C WDBR-UL Bulk
Welwyn Components / TT Electronics Planar Resistors - Chassis Mount 150 ohm 10% 1.5kW Flying Leads
Datasheet
Non-Stocked
Min.: 520
Mult.: 40

150 Ohms 1.5 kW 10 % Wire Lead 600 PPM / C 49.3 mm 35.9 mm 0.9 mm - 55 C + 200 C WDBR-UL Bulk
Welwyn Components / TT Electronics Planar Resistors - Chassis Mount 15 ohm 10% 1.5kW Solder Pads
Datasheet
Non-Stocked
Min.: 500
Mult.: 100

15 Ohms 1.5 kW 10 % Solder Pad 600 PPM / C 49.3 mm 35.9 mm 0.9 mm - 55 C + 200 C WDBR-UL Bulk
Welwyn Components / TT Electronics Planar Resistors - Chassis Mount 15 ohm 10% 1.5kW Flying Leads
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 520
Mult.: 40

15 Ohms 1.5 kW 10 % Wire Lead 600 PPM / C 49.3 mm 35.9 mm 0.9 mm - 55 C + 200 C WDBR-UL Bulk
Welwyn Components / TT Electronics Planar Resistors - Chassis Mount 20 ohm 10% 1.5kW Solder Pads
Datasheet
Non-Stocked
Min.: 500
Mult.: 100

20 Ohms 1.5 kW 10 % Solder Pad 600 PPM / C 49.3 mm 35.9 mm 0.9 mm - 55 C + 200 C WDBR-UL Bulk