OAR-1 Datasheet, PDF (1/2 Pages) Welwyn Components Limited – Open Air Sense Resistors

Open Air
Sense Resistors
OAR Series
• ^{1, 3 and 5 watts}
• ^{±1% or ±5% tolerance}
• ^{Resistance wire TCR ±20 ppm/°C}
• ^{Resistance values down to 0R005 ohms}
Welwyn Components
Electrical Data
Power rating at 85°C
Resistance range
* Contact factory for values below 0R005 ohms
Physical Data
Dimensions (mm)
Type
OAR-1
OAR-3
OAR-5
A
11.43 +1.020/-0.508
15.24 +1.020/-0.50
20.32 +1.020/-0.50
B
C
A
watts
ohms
OAR-1
1
0R005* to 0.10
OAR-3
3
0R005 to 0.10
OAR-5
5
0R005 to 0.05
B
5.08 ±2.54
25.4 max.
25.4 max.
F
E
C
3.18 ±0.762
3.18 ±0.762
3.18 ±0.762
E
1.65 +0.254/-0.127
1.65 +0.254/0.127
1.65 +0.254/-0.127
F
1.02 ±0.051
1.02 ±0.051
1.02 ±0.051
On lower ranges stand-off may be eliminated
NOTE:
Contact factory for:
1. Variations of ‘A’ dimension
2. Different lead diameter
Test Point (Kelvin connection)
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
© Welwyn Components Limited · Bedlington, Northumberland NE22 7AA, UK
Telephone: [phone] · Facsimile: [phone] · Email: [e-mail] · Website: www.welwyn-tt.com
A subsidiary of
TT electronics plc
Issue D · 08.04
101