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UP1/4TD3051%A

Description
Fixed Resistor, Metal Film, 0.25W, 305ohm, 350V, 1% +/-Tol, 15ppm/Cel, Through Hole Mount, AXIAL LEADED
CategoryPassive components    The resistor   
File Size188KB,2 Pages
ManufacturerSEI(Stackpole Electronics Inc.)
Websitehttps://www.seielect.com/
Download Datasheet Parametric View All

UP1/4TD3051%A Overview

Fixed Resistor, Metal Film, 0.25W, 305ohm, 350V, 1% +/-Tol, 15ppm/Cel, Through Hole Mount, AXIAL LEADED

UP1/4TD3051%A Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerSEI(Stackpole Electronics Inc.)
package instructionAXIAL LEADED
Reach Compliance Codecompliant
ECCN codeEAR99
Manufacturer's serial numberUP
Installation featuresTHROUGH HOLE MOUNT
Number of terminals2
Maximum operating temperature85 °C
Minimum operating temperature-20 °C
Package shapeTUBULAR PACKAGE
method of packingBULK
Rated power dissipation(P)0.25 W
Rated temperature70 °C
resistance305 Ω
Resistor typeFIXED RESISTOR
surface mountNO
technologyMETAL FILM
Temperature Coefficient15 ppm/°C
Terminal shapeWIRE
Tolerance1%
Operating Voltage350 V
UP Series — Ultra Precision Metal Film Resistors
Features
• Highest stability metal film available
• Higher power options available
• Tolerances to ±0.01% available
• 1W available, contact factory
• Cut and formed product is available on
select sizes; contact factory for details
• TCRs as low as 5 ppm
• Matched sets available
• Low noise
• Non-standard resistance values available
Electrical Specifications
Type / Code
UP 1/4
UP 1/2
Power Rating
(Watts) @ 70°C
0.25W
0.5W
Maximum Working Voltage*
350
350
Maximum Pulse Voltage
500
500
* Lesser of
√PR
or maximum working voltage.
Tolerance / TCR Combinations
Electrical (Operating Temperature Range -20°C to +85°C)
TCR
Code
TA
TB
TD
T9
T2
TCR
0.01–0.02%
5
10
15
25
50
51.1Ω – 500K
51.1Ω – 500K
51.1Ω – 500K
51.1Ω – 294K
51.1Ω – 294K
0.05%
10Ω – 1M
10Ω – 1M
10Ω – 1M
10Ω – 1M
10Ω – 1M
UP 1/4
0.1–0.25%
10Ω – 499K
10Ω – 4M
10Ω – 4M
5.11Ω – 2M
5.11Ω – 2M
0.5–1%
1Ω – 4M
1Ω – 4M
1Ω – 4M
1Ω – 2M
1Ω – 3.92M
0.01–0.02%
51.1Ω – 499K
51.1Ω – 499K
51.1Ω – 499K
51.1Ω – 499K
51.1Ω – 499K
UP 1/2
0.05%
10Ω – 499K
10Ω – 499K
10Ω – 499K
10Ω – 499K
10Ω – 499K
0.1–0.25%
10Ω – 499K
10Ω – 1M
5.11Ω – 1M
5.11Ω – 2M
5.11Ω – 2M
0.5–1%
10Ω – 499K
1Ω – 1M
1Ω – 1M
1Ω – 2M
1Ω – 3.92M
How to Order
UP
SEI Type
1/4
Code
T1
TCR Code
4.75K
Nominal Resistance
1%
Tolerance
R
Packaging
Code
1/4
1/2
Code
T2 = 50ppm
T9 = 25ppm
TD = 15ppm
TB = 10ppm
TA = 5ppm
Tolerance
0.01%
0.02%
0.05%
0.1%
0.25%
0.5%
1%
Values
E192
E192
E192
E192
E192
E192
E192
Code
R
A
Description
Paper
Bulk
Pkg Qty
5,000
1,000
Toll Free: (888) SEI-SEIS
(888) 734-7347
www.seielect.com
37
email: marketing@seielect.com
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