WCB740.7.5%B datasheet, PDF - EEWORLD Datasheet

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WCB740.7.5%B: DescriptionRESISTOR, WIRE WOUND, 7W, 0.5%, 20ppm, 40.7ohm, THROUGH HOLE MOUNT, AXIAL LEADED, ROHS COMPLIANT; CategoryPassive components The resistor; File Size191KB，2 Pages; ManufacturerSEI(Stackpole Electronics Inc.); Websitehttps://www.seielect.com/; Environmental Compliance

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WCB740.7.5%B Overview

RESISTOR, WIRE WOUND, 7W, 0.5%, 20ppm, 40.7ohm, THROUGH HOLE MOUNT, AXIAL LEADED, ROHS COMPLIANT

WCB740.7.5%B Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
package instruction	,
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	FLAME PROOF, PRECISION
JESD-609 code	e3
Manufacturer's serial number	WCB
Installation features	THROUGH HOLE MOUNT
Number of terminals	2
Maximum operating temperature	275 °C
Minimum operating temperature	-55 °C
Package shape	RECTANGULAR PACKAGE
method of packing	BULK
Rated power dissipation(P)	7 W
Rated temperature	70 °C
resistance	40.7 Ω
Resistor type	FIXED RESISTOR
surface mount	NO
technology	WIRE WOUND
Temperature Coefficient	20 ppm/°C
Terminal surface	Matte Tin (Sn)
Terminal shape	WIRE
Tolerance	0.5%
Base Number Matches	1

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CB Series — Ceramic Housed - General Purpose

Features

• Fireproof power wirewound

• High thermal conductivity

• Different element (resistor) available:

precision/ ceramic &metal oxide

• Non-inductive styles available

• Body standoffs available, add "F" after CB

• High temperature silicone coating

• RoHS compliant/ lead-free

Electrical Specifications

Type

Power Rating

(Watts)

@ 70°C

10W

15W

20W

22W

25W

30W

10W

15W

Ohmic Range and Tolerance

0.5%

–

1Ω – 5K

1Ω – 10K

1Ω – 15K

1Ω – 20K

–

1Ω – 5K

1Ω – 10K

1Ω – 15K

1Ω – 20K

–

0.2Ω – 125Ω

0.1Ω – 350Ω

0.1Ω – 500Ω

0.15Ω – 750Ω

0.2Ω – 1K

0.3Ω – 1.25K

1Ω – 5K

1Ω – 10K

1Ω – 15K

1Ω – 20K

100Ω – 10K

10%

0.2Ω – 125Ω

0.1Ω – 350Ω

0.1Ω – 500Ω

0.15Ω – 750Ω

0.2Ω – 1K

0.3Ω – 1.25K

–

CB 2

CB 3

CB 5

CB 7

CB 10

CB 15

CB 20

CB 22

CB 25

CB 30

WCB 2

WCB 3

WCB 5

WCB 7

WCB 10

WCB 15

MCB 3

MCB 5

Resistance Temperature Coefficient Standard:

CB series:

±800ppm below 1Ω

±300ppm for 1Ω and above;

WCB series:

±50ppm from 1Ω to 10Ω

±20ppm above 10Ω;

MCB series:

±200ppm

How to Order

SEI Type

Code

100

Nominal Resistance

Tolerance

Packaging

Type

WCB

MCB

Code

Tolerance

0.5%

10%

Code

Description

CB 2, CB 3, CB 5, WCB 2

WCB 3, WCB 5, MCB 3, MCB 5

CB 7, CB 10, CB 15, WCB 7, WCB 10, WCB 15

CB 20, CB 22, CB 25, CB 30

Pkg Qty

750

250

100

Toll Free: (888) SEI-SEIS

(888) 734-7347

www.seielect.com

email: marketing@seielect.com

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