RN1/4T21.781%A datasheet, PDF - EEWORLD Datasheet

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RN1/4T21.781%A: DescriptionFixed Resistor, Metal Film, 0.25W, 1.78ohm, 250V, 1% +/-Tol, 50ppm/Cel, Through Hole Mount, AXIAL LEADED; CategoryPassive components The resistor; File Size186KB，2 Pages; ManufacturerSEI(Stackpole Electronics Inc.); Websitehttps://www.seielect.com/

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RN1/4T21.781%A Overview

Fixed Resistor, Metal Film, 0.25W, 1.78ohm, 250V, 1% +/-Tol, 50ppm/Cel, Through Hole Mount, AXIAL LEADED

RN1/4T21.781%A Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Objectid	1803806647
package instruction	AXIAL LEADED
Reach Compliance Code	not_compliant
ECCN code	EAR99
Other features	PRECISION
structure	Flame Retardant
JESD-609 code	e0
Lead diameter	0.56 mm
Lead length	28 mm
Manufacturer's serial number	RN
Installation features	THROUGH HOLE MOUNT
Number of terminals	2
Maximum operating temperature	155 °C
Minimum operating temperature	-55 °C
Package diameter	2.35 mm
Package length	6.35 mm
Package shape	TUBULAR PACKAGE
Package form	Axial
method of packing	BULK
Rated power dissipation(P)	0.25 W
Rated temperature	70 °C
resistance	1.78 Ω
Resistor type	FIXED RESISTOR
series	RN1/4(50TC,1%)
surface mount	NO
technology	METAL FILM
Temperature Coefficient	50 ppm/°C
Terminal surface	Tin/Lead (Sn/Pb)
Terminal shape	WIRE
Tolerance	1%
Operating Voltage	250 V

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RN / RNM Series — General Purpose Metal Film Resistors

Features

• Precision metal film

• Superior electrical, TCR performances

• Flame-retardant coatings are standard

• Panasert available (selected sizes; contact factory)

• RNM (mini) an ideal choice where size constraints apply

• RN 5% replaces MP series

• RoHS compliant / lead-free available (RNF/RNMF)

• Lower or higher resistance values may be possible; contact

factory

Electrical Specifications

Type /

Code

Mil

Ref

Power

Rating

(W) @ 70°C

Max

Working

Voltage*

Max

Pulse

Voltage

Resistance

Temperature

Coefficient

±25 ppm/°C

±50 ppm/°C

±100 ppm/°C

±10 ppm/°C

±25 ppm/°C

±50 ppm/°C

±100 ppm/°C

±25 ppm/°C

±50 ppm/°C

±100 ppm/°C

±25 ppm/°C

±50 ppm/°C

±100 ppm/°C

±25 ppm/°C

±50 ppm/°C

±100 ppm/°C

±25 ppm/°C

±50 ppm/°C

±100 ppm/°C

Ohmic Range and Tolerance

0.1%

100Ω – 100K

1.0Ω – 2.2M

100Ω – 100K

–

100Ω – 100K

100Ω – 294K

49.9Ω – 1M

0.25%

100Ω – 100K

–

1.0Ω – 2.2M

100Ω – 100K

–

100Ω – 100K

100Ω – 294K

49.9Ω – 1M

0.5%

49.9Ω – 499K

10Ω – 1M

–

1.0Ω – 2.2M

49.9Ω – 499K

10Ω – 1M

100Ω – 51K

10Ω – 100K

100Ω – 51K

49.9Ω – 499K

10Ω – 1M

49.9Ω – 1M

10Ω – 1M

49.9Ω – 499K

1.0Ω – 1M

0.1Ω – 4.9M

–

10Ω – 1M

1.0Ω – 1M

0.1Ω – 1M

49.9Ω – 499K

10Ω – 1M

0.1Ω – 5.1M

10Ω – 100K

10Ω – 1M

1.0Ω – 1M

49.9Ω – 499K

1.0Ω – 1M

0.1Ω – 1M

49.9Ω – 1M

1.0Ω – 1M

0.1Ω – 1M

–

1Ω – 2.2M

–

1Ω – 10M

–

1Ω – 10M

–

1Ω – 1M

–

1Ω – 1M

RN 1/8

RN50

0.125W

200V

400V

RN 1/4

RN55

0.250W

250V

500V

RN 1/2

RN60

0.500W

350V

700V

RN 1

RN65

1.000W

350V

700V

RNM 1/4

–

0.250W

200V

400V

RNM 1/2

RL07

0.500W

350V

600V

* Lesser of

√PR

or maximum working voltage.

How to Order

SEI Type

1/4

Code

TCR

4.75K

Nominal Resistance

Tolerance

Packaging

Type

RNM

RNF

RNMF

PRN

PRNF

Description

EIA standard

Mini

Standard RoHS

Mini RoHS

Panasert

Pana - RoHS

Code

1/8

1/4

1/2

TCR

T1 = 100ppm

T2 = 50ppm

T9 = 25ppm

TB = 10ppm

Tolerance Values

0.1%

0.25%

0.5%

E96

E96,E24

E24

SEI Types

1/8, 1/4, RNM 1/2

RN 1/2, 1

1/8, 1/4, RNM 1/2

1/2

1/8, 1/4, 1/2

Pkg Qty Description Code

5,000

2,500

5,000

2,000

1,000

Bulk

Ammo

Reel

Toll Free: (888) SEI-SEIS

(888) 734-7347

www.seielect.com

email: marketing@seielect.com

Rev 10/08

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