Low Value Flat

Chip Resistor

LRC/LRF Series

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com

Issue E · 12.04

Welwyn Components

24

Characteristics

Test Method

Performance

Thermal Shock

MIL-STD-202 Method 107

±0.5%

Condition B, -65°C +125°C

Short Time

MIL-PRF-55342

±0.5%

Overload

High Temperature

MIL-PRF-55342

±0.5%

Exposure

Temperature

MIL-STD-883 Method 1010

±0.25%

Cycling

Test Condition B

Moisture

MIL-PRF-55342

±0.5%

Load Life

MIL-PRF-55342

±1.0%

Rated Power @ 70°C

Low Temperature

MIL-PRF-55342

±0.5%

Operation

Low Temperature

-65°C, 100 Hours

±0.5%

Storage

Resistance to

MIL-STD-202 Method 210

±0.25%

Solder Heat

Leach Resistance

Molten Solder 250°C

90 seconds

minimum

100

80

60

40

20

0

(%)

25

70

150 (

°C)

Ambient temperature

LRC 2512

1 watt

LRC 2512

1 watt

LRC 2512

2 watt

LRC 2010

0.5 watt

LRC 2010

0.5 watt

LRC 2010

1 watt

LRC 1206

0.25 watt

LRC 1206

0.25 watt

LRC 1206

0.5 watt

Dimensions (mm)

AB

C

LR1206

2.0

4.0

1.25

LR2010

3.05

6.5

1.5

LR2512

3.7

7.75

1.5

Note:

For resistance values R025 and below part will be supplied

as type LRF.

Components must be mounted with resistance value

marking face up.

To ensure correct resistance value and tolerance.

Packaging

Resistors are supplied tape and reel as per IEC 286-3.

Type

1206

2010

Reel

3,000

3,000

A

C

B

Type

LR1206

IR0

F

Resistance value

(IEC62 code)

Tolerance

(IEC62 code)

Ordering Procedure

Specify type reference, value and tolerance as shown in this

example of LR1206 1R 1%:

F1%

G2%

J5%

LRC-LRF_E.qxd

12/23/04

10:07 AM

Page 2