121 250 OHM 0.005% 10PPM Riedon, 121 250 OHM 0.005% 10PPM Datasheet

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121 250 OHM 0.005% 10PPM

Manufacturer Part Number
121 250 OHM 0.005% 10PPM
Description
RES TH 250 OHM 1/2W .005%
Manufacturer
Riedon
Series
100r
Datasheet

Specifications of 121 250 OHM 0.005% 10PPM

Resistance (ohms)
250
Power (watts)
0.5W, 1/2W
Composition
Wirewound
Temperature Coefficient
±10ppm/°C
Tolerance
±0.005%
Size / Dimension
0.374" Dia x 0.752" L (9.50mm x 19.10mm)
Lead Style
Through Hole
Package / Case
Radial
Resistance In Ohms
250
Case
Axial
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Height
-
Other names
Q4504280
T0879176
100 Series / SM Series / PC Series
Precision Wirewound Resistors
Part Number - Resistance - Tolerance - TCR ( If not standard )
Example: SM-6 25kOhms 0.1%
Riedon Inc.
1.03
SM-13
SM-15
SM-12
SM-2
SM-3
SM-4
SM-5
SM-6
SM-7
139A
Type
100
101
102
120
121
129
106
107
108
Commercial
( Watts )
Wattage
0.175
0.06
0.08
0.10
0.10
0.12
0.15
0.15
0.20
0.20
0.25
0.25
0.33
0.40
0.50
0.75
1.00
1.50
2.00
300 Cypress Avenue
Maximum Ohms
150k
250k
250k
400k
500k
500k
750k
750k
1.2M
2.5M
3.8M
3.8M
75k
1M
1M
6M
6M
6M
6M
• Resistances to 6 Megohms
• Resistance Tolerances to ±0.005%
• Temperature Coefficients of ±1 ppm/K
• 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/K
Ordering Information
Tolerance
Minimum
SPECIFICATIONS
0.005
( % )
Alhambra CA 91801
www.riedon.com
0.500 [12.7]
0.500 [12.7]
0.500 [12.7]
0.100 [2.5]
0.125 [3.2]
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]
0.250 [6.4]
0.210 [5.3]
0.250 [6.4]
0.250 [6.4]
0.375 [9.5]
0.375 [9.5]
0.375 [9.5]
[±0.13mm]
Diameter
±0.005”
0.500 [12.7]
0.750 [19.1]
0.500 [12.7]
0.750 [19.1]
1.000 [25.4]
1.000 [25.4]
1.500 [38.1]
2.000 [50.8]
Dimensions
0.450 [11.4]
0.465 [11.8]
0.210 [5.3]
0.260 [6.6]
0.375 [9.5]
0.312 [7.9]
0.250 [6.4]
0.295 [7.5]
0.250 [6.4]
0.375 [9.5]
0.375 [9.5]
[±0.64mm]
(626) 284-9901
±0.025”
Length
1
Where more than one lead is listed / the top value is Standard
Lead Diameter
0.020 [0.5]
0.025 [0.6]
0.032 [0.8]
0.032 [0.8]
0.032 [0.8]
0.020 [0.5]
0.025 [0.6]
0.020 [0.5]
0.020 [0.5]
0.025 [0.6]
0.025 [0.6]
0.025 [0.6]
0.020 [0.5]
0.025 [0.6]
0.025 [0.6]
0.025 [0.6]
0.025 [0.6]
0.025 [0.6]
0.032 [0.8]
0.032 [0.8]
0.032 [0.8]
0.032 [0.8]
0.032 [0.8]
0.032 [0.8]
[±0.05mm]
±0.002”
(626) 284-1704
1
Lead Length = 1.50 [38] Min.
Maximum
Working
Voltage
1000
100
100
100
150
150
100
200
200
200
250
300
400
300
400
600
800
900
75
Page 3

Related parts for 121 250 OHM 0.005% 10PPM

121 250 OHM 0.005% 10PPM Summary of contents

Page 1

... Part Number - Resistance - Tolerance - TCR ( If not standard ) Example: SM-6 25kOhms 0.1% Riedon Inc. 300 Cypress Avenue 1.03 • Resistances to 6 Megohms • Resistance Tolerances to ±0.005% • Temperature Coefficients of ±1 ppm/K • High TCR Available (Balco & Platinum Wire) • 100% Acceptance Tested / Traceable to NIST • ...

Page 2

... Temperature Coefficient ( Standard ) ( down to 1ppm on request ) Temperature Range Power Derating Curve 180 160 140 120 100 Ambient Temperature °C Riedon Inc. 300 Cypress Avenue 1.03 SPECIFICATIONS (continued) Dimensions Minimum Tolerance 1 Diameter Length ( % ) ±0.005” ±0.025” [±0.13mm] [±0.64mm] 0.130 [3.3] 0.200 [5.1] 0.250 [6.4] 0.375 [9.5] ...

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