Features

PWR220/PWR221 F Series Power Resistors

*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

General Information

style Power Resistor. Manufactured using thick film on Alumina ceramic technology, it

is used in applications such as power supplies, motor drives and measurements.

Material Specifications

Resistor .................................. Thick film

Substrate ......................Alumina (AL203)

Housing ................................Epoxy/PPS

Lead Frame ....... Tinned Copper (Sn/Cu)

Maximum Torque........................ 1.0 Nm

Packaging

Tubes...............................50 pcs./tube

Tape & Reel**.................. 500 pcs./reel

**Tape & Reel is only available for

Versions A and D.

Electrical & Thermal Characteristics

Parameter

Symbol

Min.

Nom.

Max.

Unit

Resistance

(Version A)

(Version C & D)

R

R

0.02

0.02

100K

15K

Ω

Ω

Power Rating @ 70 °C in Free Air

Power Rating with External Heat Sink

(Version A)

(Version C & D)

1.50

30

50

W

W

W

Tolerance

0.02

Ω < R < 1.0 Ω

1.0

Ω < R < 100K Ω

2.0

1.0

5.0

5.0

%

%

TCR

0.1

Ω < R < 100.0K Ω

0.05

Ω < R < 0.099 Ω

0.02

Ω < R < 0.049 Ω

±100

±300

±600

PPM/°C

PPM/°C

PPM/°C

Thermal Resistance – Rthj

(Version A)

(Version C & D)

3.5

2.1

°C/W

°C/W

Stability

0.5

%

Dielectric Withstanding Voltage

2

kV DC

Operating Temperature

TJ

-40

+155

°C

Models PWR220-2FB, PWR221-2FB,

and PWR220-2FA are not available

and not recommended for new

designs.

Models PWR220T-35, PWR221T-30, and

PWR263S-35 are suggested alternatives.