100 Series / SM Series / PC Series

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
Type
Commercial
Wattage
( Watts )
Maximum Ohms
SM-2
0.06
75k
Minimum
Tolerance
(%)
Dimensions
Lead Diameter
±0.002”
[±0.05mm]
Maximum
Working
Voltage
Diameter
±0.005”
[±0.13mm]
Length
±0.025”
[±0.64mm]
0.100 [2.5]
0.210 [5.3]
0.020 [0.5]
75
100
1
SM-3
0.08
150k
0.125 [3.2]
0.260 [6.6]
0.020 [0.5]
0.025 [0.6]
SM-4
0.10
250k
0.125 [3.2]
0.375 [9.5]
0.020 [0.5]
100
SM-13
0.10
250k
0.156 [4.0]
0.312 [7.9]
0.020 [0.5]
100
SM-5
0.12
400k
0.187 [4.7]
0.250 [6.4]
0.025 [0.6]
150
SM-6
0.15
500k
0.187 [4.7]
0.295 [7.5]
0.025 [0.6]
150
139A
0.15
500k
0.250 [6.4]
0.250 [6.4]
0.025 [0.6]
100
SM-15
0.175
750k
0.187 [4.7]
0.375 [9.5]
0.025 [0.6]
200
SM-12
0.20
750k
0.187 [4.7]
0.450 [11.4]
0.025 [0.6]
200
100
0.20
1M
0.250 [6.4]
0.375 [9.5]
0.032 [0.8]
0.025 [0.6]
200
SM-7
0.25
1M
0.210 [5.3]
0.465 [11.8]
0.025 [0.6]
250
300
0.005
101
0.25
1.2M
0.250 [6.4]
0.500 [12.7]
0.032 [0.8]
0.025 [0.6]
102
0.33
2.5M
0.250 [6.4]
0.750 [19.1]
0.032 [0.8]
0.025 [0.6]
400
120
0.40
3.8M
0.375 [9.5]
0.500 [12.7]
0.032 [0.8]
300
121
0.50
3.8M
0.375 [9.5]
0.750 [19.1]
0.032 [0.8]
400
129
0.75
6M
0.375 [9.5]
1.000 [25.4]
0.032 [0.8]
600
106
1.00
6M
0.500 [12.7]
1.000 [25.4]
0.032 [0.8]
800
107
1.50
6M
0.500 [12.7]
1.500 [38.1]
0.032 [0.8]
900
108
2.00
6M
0.500 [12.7]
2.000 [50.8]
0.032 [0.8]
1000
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
04/14
Alhambra CA 91801
(626) 284-9901
(626) 284-1704
www.riedon.com
100 Series / SM Series / PC Series
Precision Wirewound Resistors
SPECIFICATIONS (continued)
PC Series
Type
Commercial
Wattage
( Watts )
Maximum
Ohms
110PC
0.05
100PC
130PC
Minimum
Tolerance1
(%)
Dimensions
Length
±0.025”
[±0.64mm]
Lead Diameter2
±0.002”
[±0.05mm]
Lead Spacing
±0.015”
[±0.4mm]
75k
0.130 [3.3]
0.200 [5.1]
0.016 [0.4]
0.075 [2.5]
150
0.125
500k
0.250 [6.4]
0.375 [9.5]
0.025 [0.6]
0.150 [3.8]
150
0.125
500k
0.250 [6.4]
0.312 [7.9]
0.025 [0.6]
0.150 [3.8]
150
131PC
0.125
500k
0.250 [6.4]
0.312 [7.9]
0.025 [0.6]
0.200 [5.1]
150
101PC
0.25
600k
0.250 [6.4]
0.500 [12.7]
0.025 [0.6]
0.150 [3.8]
150
120PC
0.40
800k
0.375 [9.5]
0.500 [12.7]
0.032 [0.8]
0.200 [5.1]
300
0.500 [12.7]
0.032 [0.8]
0.025 [0.6]
0.300 [7.6]
400
104PC
0.50
0.005
1M
0.500 [12.7]
2
Rectangular Series
1
May not apply for all wire types. Please call factory.
Where more than one lead is listed / the top value is Standard
Lead Length = 1.00 [25] Min.
Type
Commercial
Wattage
( Watts )
Maximum
Ohms
SM-8
0.125
SM-9
0.250
SM-10
SM-11
Dimensions
Width
±0.010”
[±0.25mm]
Height
±0.025”
[±0.64mm]
500k
0.140 [3.6]
750k
0.150 [3.8]
0.300
500k
0.102 [2.6]
0.500
1M
0.160 [4.1]
Lead Diameter1
±0.002”
[±0.05mm]
Lead Spacing
±0.015”
[±0.4mm]
0.250 [6.4]
0.270 [6.9]
0.032 [0.8]
0.125 [3.2]
150
0.270 [6.9]
0.540 [13.7]
0.032 [0.8]
0.250 [6.4]
150
0.320 [8.1]
0.300 [7.6]
0.025 [0.6]
0.150 [3.8]
150
0.525 [13.3]
0.585 [14.9]
0.032 [0.8]
0.400 [10.2]
150
Specification
Value
Tolerances
±0.005% to ±1% ( See Derating Curve )
Temperature Coefficient ( Standard )
>100W : ±10ppm/°C
10W to100W : ±20ppm/°C
<10W : ±30ppm/°C
Temperature Range
-55°C to +145°C ( See Derating Curve )
( down to 1ppm on request )
180
160
140
120
100
80
60
40
Power Derating Curve
1% /
0.05%
0.5%
/ 0.02%
/ 0.1%
Tolera
n
Fast Rise Time - These resistors are available in a
low reactance design for fast rise time and extended
frequency response.
Toler
a
nce
High Stability - These resistors are available in a
High Stability version with maximum resistance
change of ±20ppm/year under normal conditions.
e
0.005% Tolera
nce
20
0
Lead Length = 1.00 [25] Min.
Notes: ( Contact Factory for these options )
ce
0.01% T
oleranc
Maximum
Working
Voltage
Length
±0.010”
[±0.25mm]
1
Percentage of Rated Power
Maximum
Working
Voltage
Diameter
±0.005”
[±0.13mm]
0 20 40 60 80 100120140160
Wide TCR Range - These resistors are available in
Low and High TC configurations from -20ppm/K to
+6000ppm/K.
Ambient Temperature °C
Riedon Inc.
300 Cypress Avenue
04/14
Alhambra CA 91801
(626) 284-9901
(626) 284-1704
www.riedon.com