100 Series / SM Series / PC Series
Precision Wirewound Resistors
• Resistances to 6 Megohms
• Resistance Tolerances to ±0.005%
• Temperature Coefficients of ±2 ppm/°C
• High TCR Available (Balco & Platinum Wire)
• 100% Acceptance Tested / Traceable to NIST
• Long Term Stability / 100ppm/year
• Matched Resistance Sets to ±0.001% and ±0.5 ppm/°C
SPECIFICATIONS
Dimensions
Commercial
Wattage
( Watts )
Minimum
Tolerance
( % )
Maximum
Working
Voltage
Type
Maximum Ohms
Diameter
±0.005”
Length
±0.025”
Lead Diameter1
±0.002”
[±0.13mm]
[±0.64mm]
[±0.05mm]
SM-2
SM-3
0.06
0.08
75k
0.100 [2.5]
0.125 [3.2]
0.210 [5.3]
0.260 [6.6]
0.020 [0.5]
75
0.020 [0.5]
0.025 [0.6]
150k
100
SM-4
SM-13
SM-5
0.10
0.10
0.12
0.15
0.15
0.175
0.20
250k
250k
400k
500k
500k
750k
750k
0.125 [3.2]
0.156 [4.0]
0.187 [4.7]
0.187 [4.7]
0.250 [6.4]
0.187 [4.7]
0.187 [4.7]
0.375 [9.5]
0.312 [7.9]
0.250 [6.4]
0.295 [7.5]
0.250 [6.4]
0.375 [9.5]
0.450 [11.4]
0.020 [0.5]
0.020 [0.5]
0.025 [0.6]
0.025 [0.6]
0.025 [0.6]
0.025 [0.6]
0.025 [0.6]
100
100
150
150
100
200
200
SM-6
139A
SM-15
SM-12
0.032 [0.8]
0.025 [0.6]
100
SM-7
101
0.20
0.25
0.25
1M
1M
0.250 [6.4]
0.210 [5.3]
0.250 [6.4]
0.375 [9.5]
0.465 [11.8]
0.500 [12.7]
200
250
300
0.005
0.025 [0.6]
0.032 [0.8]
0.025 [0.6]
1.2M
0.032 [0.8]
0.025 [0.6]
102
0.33
2.5M
0.250 [6.4]
0.750 [19.1]
400
120
121
129
106
107
108
0.40
0.50
0.75
1.00
1.50
2.00
3.8M
3.8M
6M
0.375 [9.5]
0.375 [9.5]
0.375 [9.5]
0.500 [12.7]
0.500 [12.7]
0.500 [12.7]
0.500 [12.7]
0.750 [19.1]
1.000 [25.4]
1.000 [25.4]
1.500 [38.1]
2.000 [50.8]
0.032 [0.8]
0.032 [0.8]
0.032 [0.8]
0.032 [0.8]
0.032 [0.8]
0.032 [0.8]
300
400
600
800
900
1000
6M
6M
6M
1 Where more than one lead is listed / the top value is Standard
Lead Length = 1.50 [38] Min.
Ordering Information
Part Description: Part Type - Resistance - Tolerance - TCR ( If not standard )
Example: SM-6 25K Ohms 0.1%
Riedon Inc.
300 Cypress Avenue
Alhambra CA 91801
(626) 284-9901
(626) 284-1704
04/14
www.riedon.com