PRECISION WIREWOUND
RADIAL LEAD SERIES

CONSTRUCTION:
Controlled stress windings are reverse pi wound (non-inductive) on special high temperature epoxy bobbins and terminated using controlled welds. An extensive accelerated aging program provides the ultimate in stabilization. A resilient inner coating and dry air chamber isolate exterior protective epoxy shell from windings to increase moisture protection and stability. Leads are firmly anchored inside bobbin with a high temperature epoxy that assures excellent structural strength. Standard marking includes Trademark, part number, resistance value and resistance tolerance.
FEATURES:
Resistance Tolerances: To ±.005% (25°C)   Temperature range: -65°C to 150°C
Temperature coefficients of resistance to 0 ±1PPM/°C
Exceptional resistance stability.
All terminations made of controlled welds.
Fast rise time and minimum phase shift available on selected styles.
Extremely low noise.
Marking impervious to most cleaning agents.
New micro-miniature sizes available.
Exceed the applicable requirements of Mil-R-93.
STANDARD TOLERANCES:
1%, 0.5%, 0.25%, 0.1%, 0.05%, 0.01% and 0.005% of marked resistance value (calibrated at +25°C ±1°C) Special tolerances are available on request.
STANDARD LEAD MATERIAL:
Tinned Copper
Measurements are made with equipment calibrated to the absolute ohm standard. Since electrical limitations exist in terminating resistance wire, there are minimum tolerance limits applicable to various resistance ranges. These tolerances with corresponding resistance values as shown below.

Tolerance (%) Resistance Value Tolerance (%) Resistance Value
0 ± .005 1000 and over 0 ± .01 50 and over
0 ± .05 5 and over 0 ± .10 1 and over
0 ± .25 .05 and over - - - -
Standard Temperature Coefficient of Resistance
PPM/° C Resistance   PPM/° C Resistance
0 ± 10 1000 and over 0 ± 15 10 to 100
0 ± 30 1 to 10 0 ± 90 less than 1
For resistance values higher than shown please contact our engineering department.


Dimension Shown in Inches. Conversion to M.M. = Inch x 25.4
M-O P/N Mil R-93
Equiv.
Length
(L) ±.032
Dia.
(D) ±.015
Lead Awg (d) Lead Spacing
(S) ±.032
Mtg. Hole
(H)
Com'l Wattage Max.DC Voltage Max
Resistance
.0006 wire
*221 -- .490 .365 24 .390 .140 .50 300 2.5M
*211 -- .325 .375 24 .245 .120 .50 300 1.5M
*226 -- 1.000 .375 20 .855 .089 1.00 600 5M
222 -- .688 .420 20 .555 none 1.00 600 3M
236 -- 1.125 .435 20 .960 none 1.25 600 5M
*220 RB17 1.000 .500 20 .845 .140 1.00 600 10M
*228 RB73 2.000 .500 20 1.750 .140 2.00 1200 20M
*227 RB08 .500 .550 20 .235 .140 .50 300 1M
*224 RB16 .612 .550 20 .475 .140 .50 300 12M
*230 RB18 1.250 .750 20 1.125 .140 2.00 600 20M
*Items also available with lugs. Order as 6XX.
For resistance values higher than shown please contact our engineering department.
Subminiatures
M-O P/N Mil R-93
Equiv.
Length
(L) ±.032
Dia.
(D) ±.015
Lead Awg (d) Lead Spacing
(S) ±.032
Mtg. Hole
(H)
Com'l Wattage Max.DC Voltage Max
Resistance
.0006 wire
225 -- .500 .160 24 .385 none .20 200 500K
*202 -- .250 .312 24 .180 .089 .25 200 500K
243 -- .500 .250 22 .290 none .25 300 300K
*Items also available with lugs. Order as 6XX.
For resistance values higher than shown please contact our engineering department.
Dimension Shown in Inches. Conversion to M.M. = Inch x 25.4
Micro-Miniatures
M-O P/N Mil R-93
Equiv.
Length
(L) ±.032
Dia.
(D) ±.015
Lead Awg (d) Lead Spacing
(S) ±.032
Mtg. Hole
(H)
Com'l Wattage Max.DC Voltage Max
Resistance
.0006 wire
**206 -- .200 .105 30 .100 none .30 100 30K
210 -- .250 .100 28 .200 none .05 100 30K
205 -- .165 .075 30 .150 none .04 50 11K
**Silicone coated.
For resistance values higher than shown please contact our engineering department.
ORDERING INFORMATION
Example: .25W 100ohm 5ppm .1%
202
100R0
C7
B
Type
Resistance
T.C.
C3 = 25

C6 = 10
C7 = 5
C8 = 1
Tolerance
F= 1%
D = .5%
C = .25%
B = .1%
A = .05%
Q = .02%
T = .01%
V = .005%
How to Order Micro-Ohm Resistors
TO ORDER PRODUCTS
E mail: microohm@mail.com
Call Toll Free: 1-800-845-5167
home page product guide 100 - axial 400 - printed circuit,cyl. 400 - printed circuit,rect.