Open Air Low Value

Shunt Resistors

OLV Series

OLV Series

Solvent Resistance

The product is resistant to all normal industrial cleaning solvents suitable for printed circuits.

Performance Data

Maximum

Endurance at rated temperature Full rated power for 1000hrs (1.5hrs on, 0.5hrs off) at 70°C

±∆R%

5 + 0.05Ω

Overload (6.25 x rated power for 5s)

±∆R%

5 + 0.05Ω

Temperature derating

See graph

Solderability

95% coverage

Ordering Procedure

Example: OLV3 at 10mΩ and 5% tolerance in bulk pack boxes of 400 pieces:

O L V 3 – R 0 1 J B 0 4

Type

Value (use IEC62 code)

Tolerance (use IEC62 code)

J

5%

Packing

B36

OLV1-R025

3600 / box

B2

OLV1-R02, OLV2-R05, OLV3-R10

2000 / box

B12

OLV1-R015, OLV2-R005, OLV3-R05

1200 / box

B08

OLV1-R005, OLV1-R01, OLV2-R015, OLV2-R02, OLV2-R025, OLV3-R015, OLV3-R02

800 / box

B04

Bulk Pack

OLV2-R01, OLV3-R005, OLV3-R01, OLV3-R025

400 / box

Standard

General Note

Welwyn Components reserves the right to make changes in product specification without notice or liability.

01/11

All information is subject to Welwyn’s own test data and is considered accurate at time of print.

©Welwyn Components Limited

Welwyn Electronics Park, Bedlington, Northumberland, NE22 7AA, England. Tel: 01670 822181 Fax: 01670 829465 Web: www.welwyn-tt.com

Surge Energy

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

0

20

40

60

80

100

Value (mOhms)

Temperature Derating

0%

20%

40%

60%

80%

100%

-40

25

90

155

Ambient Temperature (°C)

Typical Temperature Rise

0

50

100

150

200

250

300

0%

20%

40%

60%

80%

100%

Proportion of Pr

Joint

Hot Spot

OLV3

OLV2

OLV1

Suggested 4-Terminal Track Layout

Notes:

1. Sense tracks should run close to each other and for a

short distance to minimise loop area and noise pickup.

2. Current tracks should be dimensioned to give minimal

self heating at the maximum design current.

3. At least one pair of connections (current or sense)

should be on the component side of the PCB.

Sense

Current

Current

(for durations ≤100ms)

Make Possible

07.14

General Note

TT Electronics reserves the right to make changes in product specification without notice or liability.

All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.

© TT Electronics plc

www.ttelectronicsresistors.com

OBSOLETE