Features

Applications

Electrical & Thermal Characteristics

PWR221T-30 Series Power Resistor

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

RoHS Recast 2011/65/EU June 8, 2011.

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

General Information

current limiting, capacitor discharge or current measurement circuits in power supplies for telecom and industrial applications.

Parameter

Value(s)

Resistance (See Popular Resistance Values table)

0.02

Ω to 130 KΩ

Power Rating @ 25 ˚C Case Temperature

30 W**

Tolerance

±1 %***,

±5 %

TCR

0.100

Ω<R<130.0 KΩ

0.050

Ω<R<0.100 Ω

0.020

Ω<R<0.050 Ω

±100 PPM/˚C

±300 PPM/˚C

±600 PPM/˚C

Thermal Resistance - Rthj

4.2 ˚C/W

Inductance

0.1 µH maximum

Operating Voltage

√P*R with a maximum of 250 V

Dielectric Strength

2 KV AC

Insulation Resistance

10 G

Ω

Operating Temperature

-55 ˚C to +150 ˚C

Material Characteristics

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

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

Housing ........................................ Epoxy

Pins....................Tinned Copper (Sn/Cu)

Flammability ........ Conforms to UL-94V0

Reliability Characteristics

Parameter

Specification

Short Term Overload (2x Pr for R < 2

Ω,

1.6 x Pr for R

≥ 2 Ω, V < 1.5 x Operating Voltage)

ΔR ±0.25 %

Load Life (2000 hours at rated power)

ΔR ±1.0 %

Thermal Shock (-55 ˚C to 155 ˚C, 5 cycles)

ΔR ±0.5 %

Resistance to Soldering Heat (10 seconds at

270 ˚C)

ΔR ±0.5 %

Vibration (20 G 10-2000 Hz .06 ” D.A.)

ΔR ±0.25 %

Terminal Strength (MIL-STD-202, Method 211

Test A1)

ΔR ±0.2 %

Shock (Saw Tooth: 100 g/6 ms)

ΔR ±0.5 %

Humidity (Steady State) 1000 hrs. 85 °C/85 % RH

ΔR ±0.5 %

High Temperature Exposure

(100 hrs - 40 % Pr @ +125 °C)

ΔR ±0.5 %

Packaging

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

** Power rating of 2.25 W when mounted free to air (no heat sink).

*** Available for most values. Check Popular Resistance Values table.

Typical Part Marking

221

30

R500 1%

902

COSTA RICA

MANUFACTURER'S

TRADEMARK

MODEL

NUMBER

RESISTANCE

CODE

TOLERANCE

DATE CODE

COUNTRY

OF ORIGIN

221

30

25R0

1%

018

COST

A RICA

Popular Resistance Values

Code

Resistance

Value

Code

Resistance

Value

R020

0.02 Ω***

1000

100 Ω

R025

0.025 Ω***

1200

120 Ω

R030

0.03 Ω***

1500

150 Ω

R033

0.033 Ω***

2000

200 Ω

R040

0.04 Ω***

2500

250 Ω

R050

0.05 Ω***

3000

300 Ω

R075

0.075 Ω***

3300

330 Ω

R100

0.1 Ω

4000

400 Ω

R150

0.15 Ω

4700

470 Ω

R200

0.2 Ω

5000

500 Ω

R250

0.25 Ω

5600

560 Ω

R300

0.3 Ω

7500

750 Ω

R330

0.33 Ω

1001

1.0 KΩ

R400

0.4 Ω

1501

1.5 KΩ

R500

0.5 Ω

2001

2.0 KΩ

R750

0.75 Ω

2501

2.5 KΩ

1R00

1 Ω

3001

3.0 KΩ

1R50

1.5 Ω

3301

3.3 KΩ

2R00

2 Ω

4001

4.0 KΩ

2R50

2.5 Ω

5001

5.0 KΩ

3R00

3 Ω

7501

7.5 KΩ

3R30

3.3 Ω

1002

10 KΩ

4R00

4 Ω

1502

15 KΩ

5R00

5 Ω

2002

20 KΩ

7R50

7.5 Ω

2502

25 KΩ

8R00

8 Ω

3002

30 KΩ

10R0

10 Ω

3302

33 KΩ

12R0

12 Ω

4002

40 KΩ

15R0

15 Ω

4702

47 KΩ

20R0

20 Ω

5002

50 KΩ

25R0

25 Ω

5602

56 KΩ

27R0

27 Ω

6802

68 KΩ

30R0

30 Ω

7502

75 KΩ

33R0

33 Ω

8202

82 KΩ

40R0

40 Ω

1003

100 KΩ

47R0

47 Ω

1153

115 KΩ

50R0

50 Ω

1203

120 KΩ

56R0

56 Ω

1253

125 KΩ

75R0

75 Ω

1303

130 KΩ

*** 5 % Tolerance