238164073104 - Vishay Presicion Group

NTC Thermistors, Screw Threaded Sensors

www.vishay.com For technical questions, contact: nlr@vishay.com Document Number: 29065

106 Revision: 12-Apr-11

This document is subject to change without notice.

THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT

www.vishay.com/doc?91000

NTCASCWE3

Vishay BCcomponents

Notes

•Other R25-values and tolerances are available upon request

• Insulated leads available upon request

(1) Measured with screw mounted on an aluminium heatsink of

100 cm2, thickness 1.5 mm, in still air at Tamb =+ 25°C

FEATURES

• Easy mounting with screw

• Rugged construction

• Compliant to RoHS Directive 2002/95/EC and in

accordance to WEEE 2002/96/EC

APPLICATIONS

• Temperature measurement, sensing and control

• Suitable for surface temperature applications,

especially when a good electrical insulation and a good

thermal contact with the chassis is required

DESCRIPTION

The thermistors are made of NTC ceramic material reflow

soldered between two solid tinned copper or nickel wires

and potted in the head of passivated aluminum srew size

M4.

PACKAGING

The thermistors are packed in cardboard boxes; the

smallest packaging quantity is 100 units.

DESIGN IN SUPPORT

For complete Curve Computation, visit:

www.vishay.com/resistors-non-linear/curve-computation-list

MARKING

The last 4 digits of the 12NC code are printed on the stud in

accordance with the information in Electrical Data and

Ordering Information table.

MOUNTING

By means of a washer and M4 nut supplied with the device

or in a threaded screw hole. Applied torque shall not exceed

1.2 Nm. Leads to be soldered or crimped.

DIMENSIONS in millimeters

QUICK REFERENCE DATA

PARAMETER VALUE UNIT

Resistance value at 25 °C 1K to 470K 

Tolerance on R25-value ± 1, ± 2, ± 5 %

B25/85-value 3740 to 4570 K

Tolerance on B25/85-value ± 0.5 to ± 2.5 %

Operating temperature range at:

°CZero dissipation - 40 to + 100

Maximum power dissipation 0 to + 55

Dissipation factor (1)  23 mW/K

Maximum power dissipation 500 mW

Thermal time constant (1)  7.5 s

Min. dielectric withstanding

voltage between terminals and

Al case

1500 (1 s) VAC

Insulation resistance between

terminals and Al case min. 100 M

Weight  1.5 g

max.

8 ± 0.1

6.7

max.

Ø d

37 ± 3

5.5

min.

Component outline

ELECTRICAL DATA AND ORDERING INFORMATION

R25

(k)

TOLERANCE

ON R25 B25/85-VALUE LEADS DIAMETER Ø d

(mm)

TCR

(%/K)

SAP MATERIAL NUMBER

AND ORDERING CODE OLD 12NC CODE

1.0 ± 5 % 3528K ± 0.5 % 0.6 - 3.87 NTCASCWE3102J 2381 640 73102

2.2 ± 5 % 3977K ± 0.75 % 0.6 - 4.37 NTCASCWE3222J 2381 640 73222

4.7 ± 5 % 3977K ± 0.75 % 0.6 - 4.37 NTCASCWE3472J 2381 640 73472

10 ± 1 % 3977K ± 0.75 % 0.5 - 4.37 NTCASCWE3103F 2381 640 75103

10 ± 2 % 3977K ± 0.75 % 0.5 - 4.37 NTCASCWE3103G 2381 640 74103

10 ± 5 % 3977K ± 0.75 % 0.6 - 4.37 NTCASCWE3103J 2381 640 73103

12 ± 5 % 3740K ± 1.5 % 0.6 - 4.10 NTCASCWE3123J 2381 640 73123

15 ± 5 % 3740K ± 1.5 % 0.6 - 4.10 NTCASCWE3153J 2381 640 73153

47 ± 5 % 4090K ± 1.5 % 0.6 - 4.46 NTCASCWE3473J 2381 640 73473

100 ± 1 % 4190K ± 1.5 % 0.5 - 4.57 NTCASCWE3104F 2381 640 75104

100 ± 2 % 4190K ± 1.5 % 0.5 - 4.57 NTCASCWE3104G 2381 640 74104

100 ± 5 % 4190K ± 1.5 % 0.6 - 4.57 NTCASCWE3104J 2381 640 73104

150 ± 5 % 4370K ± 2.5 % 0.6 - 4.75 NTCASCWE3154J 2381 640 73154

470 ± 5 % 4570K ± 2 % 0.6 - 4.95 NTCASCWE3474J 2381 640 73474

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Revision: 12-Mar-12 1Document Number: 91000

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