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Aug. 31, 2023 V.1

Aluminum Housed Resistors

4

7

Product Specification

ATC

Through Hole Resistors

ELECTRICAL CHARACTERISTICS

CHARACTERISTICS

ATC40AJB-TUN100R

Power Rating at 25 °C

40W

Voltage Proof on Insulation

2500V,Maximum testing leakage current AC:1.5mA

Resistance value

100Ω

Maximum Working Voltage

√(P X R)

Operating Temp. Range

- 55°C to +275°C

Temperature Coefficient

±260ppm/°C

Wire Materials

Nickel Alloy

Housing Materials

99% Aluminum with hard anode coating

Encapsulate Materials

Alumina, Mica, Magnesium Oxide, Silicon Resin

Lead Materials

TEFLON WIRE UL 1332 AWG#18(Color: White)(UL number: E211048)

Insulation Tuning

Heat shrink tubing Φ4mm(UL number: E225897)

Terminal Material

Terminal JWT P./N.: A2501T2P-2

Terminal Housing

Housing JWT P./N.: A2512H00-3P (UL number:E144544)

Note: The resistor must be locked on the heat sink when working.

TEST AND REQUIRMENTS

TEST

TEST METHOD

PROCEDURE

APPRAISE

Short Time Overload

IEC 60115-1 4.13

5 times rated power for 5 sec.(Not more

than maximum overload voltage)

±2.0%+0.05Ω

Voltage Proof on

Insulation

IEC 60115-1 4.7

In V-Block for 60 sec. test voltage as

above table

No Breakdown

Temperature Coefficient

IEC 60115-1 4.8

Between -55°C to +155°C

By Type

Insulation Resistance

IEC 60115-1 4.6

In V-Block for 60 sec.

>100MΩ

Dry Heat

IEC 60115-1 4.23

275±2°C for 16 hours

±3.0%+0.05Ω

Robustness of

Terminations

IEC 60115-1 4.16

Direct load for 10 Sec. in the direction of

the terminal leads

≥9.07Kgf

Damp Heat Steady State

IEC 60115-1 4.24

40±2°C,90-95% RH for 56 days, loaded

with 0.1 times RCWV

±3.0%+0.05Ω

Endurance at 25°C

IEC 60115-1 4.25

25±2°C at RCWV(or Umax., whichever

less) for 1,000 Hr.(1.5 Hr.on,0.5 Hr. off)

±5.0%+0.05Ω

Temperature Cycling

IEC 60115-1 4.19



-55°C  Room Temp. 

+155°C Room Temp.(5 cycles)

±2.0%+0.05Ω

Thermal shock

IEC 60115-1 4.21

Loaded with RCWV until thermally stable,

-55°C for 15 minutes.

±2.0%+0.05Ω