GP Series

PRODUCT BULLETIN
GP-SERIES
WILLOW TECHNOLOGIES LTD.
SHAWLANDS COURT, NEWCHAPEL ROAD
LINGFIELD, SURREY, RH7 6BL, ENGLAND
Tel. + 44 (0) 1342 835234 Fax. + 44 (0) 1342 834306
E-mail [email protected]
Website http://www.willow.co.uk
GENERAL PURPOSE PRECISION
METAL FILM RESISTORS
Economical
High Performance
Very Stable
Low Noise
CL - CL
MAX L.
Dimensions
Style
LL
LEAD D.
MAX D.
Dimensional Correlation
In.
mm
.016
.025
.032
.062
.072
.102
.125
.150
.170
.200
.280
.325
.400
.450
.600
.685
1.250
1.500
.406
.635
.813
1.57
1.83
2.59
3.18
3.81
4.32
5.08
7.11
8.26
10.16
11.43
15.24
17.40
31.75
38.10
GP1/8B
GP1/4
GP1/2
GP¾
GP1
Inches
Max. L.
Max. Dia.
CL to
CL
Lead Dia.
Lead
Length
.170
.280
.400
.600
.600
.072
.102
.150
.200
.200
.200
.325
.450
.685
.685
.020 AWG #24
.025 AWG #22
.025 AWG #22
.025 AWG #22
.032 AWG #20
1.25±.065
1.50±.125
1.50±.125
1.50±.125
1.50±.125
Specifications
PRP Style
GP1/8B
GP1/4
GP1/2
GP3/4
GP1
Mil. Style
Resistance Range
(Ohms)
RN 50
RN 55
RN 60
RN 65
RN 70
10R-500K
2.5R-1M
4.99R-1M
10R-1.5M
10R-1.5M
Wattage Rating
@70 C @125 C
1/8
1/4
1/2
3/4
1
1/10
1/8
1/4
1/2
1/2
Voltage
Rating
200V
300V
500V
500V
750V
Typical Performance (100 ohms – 250K)
Ref: EIA RS-186 (where applicable) % R
% R
Thermal Shock………………….……. 0.05
Low Temperature Operation.………....... 0.03
Thermal Strength, 5 lb. Load...……… 0.02
Resist. To Soldering Heat………………. 0.04
Dielectric Withstanding Volt…..…...... 0.02
Short Time Overload ………………….… 0.05
Humidity...……………………….......... 0.20
1000 Hr. Load Life @125 ..…………….. 0.15
Temperature Coefficients
TC25=0
TC50=0
T100=0
T250=0
25 PPM/ C – 20 to +85 C
50 PPM/ C – 20 to +85 C
100 PPM/ C – 20 to +85 C
250 PPM/ C – 20 to +85 C
Resistance Tolerances
5.0%, 2.0%, 1.0%, 0.5%,
2.5%, 0.1%, .01%
Lead Material
The core material is O.F.H.C. and is
electroplated with a coating of 60/40 tin/lead.
Note:
The GP-Series of resistors is conformally coated and fully protected against moisture by a
multi-paint coat system and a hard epoxy outer coating. Marking is alpha-numeric and
meets the most demanding marking requirements. Special marking is available upon
request. Consult the factory concerning failsafe, flameproof, and requirements.
DEDICATION TO EXCELLENCE
Subject to change without notice