produc guide
PRECISION WIREWOUND
MINIATURE RECTANGULAR
Configuration with Printed Circuit Lead

FEATURES:
Ultra Stable - Meets Mil R-39005
Non-Inductive - Low Thermal EMF
Close Tolerance - Low Temperature Coefficient
Interchangeable with Bulk Metal Film Type
Temperature Coefficient
Tracking 0 - 85° C		 Temperature Coefficients
0 ± 2PPM/ °C Standard
Resistance
Std. T.C. (0 - 85°C)
0 ± 1PPM/ °C (available with restrictions)
< 2 ohms
±50 ppm
> 2 ohms - 50 ohm
±25 ppm
> 50 ohm - 1 k
±10 ppm
> 1 k - 2 meg
±5 ppm
Temperature coefficients of 1 & 2 ppm available on certain resistance values & temperature ranges. Please contact factory.

Dimension Shown in Inches. Conversion to M.M. = Inch x 25.4
M-O P/N  H
±.020		  L
±.010		  W
±.010		  S
±.010		 Lead Dia. Lead Material
450 .250 .250 .125 .125 .032 (20 ga.) Tinned Copper
451 .327 .300 .112 .150 .025 (22 ga.) Tinned Copper
452 .250 .250 .125 .125 .025 (22 ga.) Tinned Copper
460 .250 .500 .125 .250 .032 (20 ga.) Tinned Copper

M-O P/N Watts @ 70° C Max. Working Voltage DC Resistance Tolerance Resistance
Range (ohms)		 Stability
450 .20 200 1% to .005% .5 - 1Meg 25PPM/Year
451 .30 200 1% to .005% .5 - 750K 25PPM/Year
452 .20 200 1% to .005% .5 - 1Meg 25PPM/Year
460 .35 200 1% to .005% .5 - 2Meg 25PPM/Year
For resistance values higher than shown please contact our engineering department.

ORDERING INFORMATION
Example: 451 20K 5ppm .1%
451
20001
C7
B
Type
Resistance
5 digit. <100 use R for decimal. >100 5th digit is multiplier
T.C.
C2 = 50
C3 = 25
C6 = 10
C7 = 5
C10 = 2
C8 = 1
Tolerance
F= 1%
D = .5%
C = .25%
B = .10%
A = .05%
Q = .02%
T = .01%
V = .005%
TO ORDER PRODUCTS
E mail: microohm@mail.com
Call Toll Free: 1-800-845-5167
home page product guide 100- axial 200 - radial 400 - printed circuit,cyl.