product guide
FILM RESISTOR
Series PM - 20.0 to 15.0 meg
Precision Metal Film - Molded Style
Features
Wide resistance range: 20.0 to 15.0 Meg
TC: ± 5 to 50 PPM standard. Matching to 1 PPM
Tolerances: ± .01% to ± 1 %. Matching to .02%
Precision quality, excellent stability
Exceeds performance requirements of MIL-R-10509 & EIA RS-460
Extremely low noise, reactance, voltage coefficient
Operating Temperature: -65°C to + 150°C
Packaging: Bulk on tape & reel
Construction
PM Series Metal Film Resistors have been designed to meet MIL-R-10509F specifications.The film is a proprietary thin film nickel-chrome alloy evaporated onto a high grade substrate using a high vacuum deposition process to insure low temperature coefficients and superb stability with time and temperature. The resistors are hot molded with an exclusive high-temperature epoxy to insure maximum seal, solvent resistance and mechanical strength. Resistors are aplha-numeric marked.
Environmental Performance
Test Description Max. R
(Typical Test Lots)		 Test Specifications
Thermal Shock: -55°C to + 85°C
.02%
 MIL-STD-202, Method 107
Short Time Overload
.01%
MIL-R-10509, Para. 4.6.6,
Low Temperature Operation
.02%
MIL-STD-55182, Method 4.7.9
Moisture
.08%
MIL-R-202, Method 106
Resistance to Soldering Heat
.02%
MIL-STD-202, Method 210
Damp Heat
.06%
IEC Publication #68-2-3 (56 days)
Life: (1000 Hours rated power @ 85°C)
.04%
MIL-STD-55182, Para. 4.7.17
Dielectric Withstanding Voltage
.01%
MIL-STD-202, Methods 301 & 105
MO P/N MIL-10509
Equivalent		 DIMENSIONS INCHES (MM)
L ±.019 (.48) D ±.016 (.41) Lead Dia. ±.002(.05)
PM 1/20 RN50 .154 (3.9) .071 (1.8) .018 (.04)
PM 1/10 RN55 .268 (6.8) .098 (2.5) .024 (0.6)
PM 1/8 RN60 .394 (10.0) .146 (3.7) .024 (0.6)
PM 1/4 RN65 .583 (14.8) .205 (5.2) .024 (0.6)
PM 1/2 RN70 .720 (18.2) .256 (6.5) .032 (0.8)
Specifications - Resistance Range
MO
P/N
Wattage
@125°C
Wattage
@70°C
Max.
Working
Voltage
T
.01%
P
.02%
W
.05%
B
.1%
C
.25%
D
.5%
F
1%
PM1/20
.050
.125
200V
N/A
N/A
N/A
20-562K
20-604K
 20-825K
20-1M
PM1/10
.100
.250
250V
1K-500K
100-1.21M
20-1.21M
20-1.21M
20-1.5M
20-2.49M
20-3.01M
PM1/8
.125
.500
300V
1K-500K
100-1.21M
20-1.21M
20-1.5M
20-2.0M
20-3.01M
20-4.99M
PM1/4
.250
.750
300V
N/A
100-2.0M
20-2.0M
20-4.99M
20-6.26M
20-8.45M
20-10.0M
PM1/2
.500
1.00
350V
N/A
100-1.0M
20-3.01M
20-10.0M
20-10.0M
 20-12.0M
20-15.0M
Specifications - Temperature Coefficients vs Resistance Range In Ohms
MO P/N
5 ppm 7
10 ppm 6
15 ppm 5
25 ppm 3
50 ppm 2
PM 1/20
 50-1.0M 100-100K 20-271K 10-604K 10-1.0M
PM 1/10 50-1.0M 20-1.0M 20-1.21M 20-1.5M 20-3.01M
PM 1/8 50-1.0M 20-1.0M 20-1.21M 20-2.0M 20-4.99M
PM 1/4 50-1.0M 20-1.0M 20-1.21M 20-4.99M 20-10.0M
PM 1/2 50-1.0M 20-1.0M 20-1.21M 20-10.0M 20-15.0M
Consult factory for special tolerances & TC's not shown. 2 PPM = 8, 3 PPM = 9
DERATING
TO ORDER PRODUCT
E mail: microohm@mail.com
Call Toll Free: 1-800-845-5167
home page product guide PL
low ohm		 MF
conformal coated		 RJ
high resistance