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TCS620 N

TC TH

ERM

ISTOR

TCS620-00400-D

GENERAL DESCRIPTION:These 1% thermistors are conformally coated, two-lead thermistors for applications where embedding the thermistor is required. The coating is baked on phenolic for durability and long term stability. They have solid nickel wires with Tefl on insulation to provide isolation when assembled in metal housings.

Thermal Resistance or Dissipation Constant is 2-3 mW/C.

Thermal Time Constant is 6-14 seconds.

20 k NTC Bead Head Thermistor

FEATURES: Low Cost Small Size -- Conformally Coated Wide Resistance Range Available in 5 Different R-T Curves 1% Tolerance 3 Long Solid Nickel Wire Leads Tefl on Insulation Provides Isolation from

Metal Housing RoHS Compliant (by exemption)

August, 2013

Figure 1Dimensions

TCS620

Thermistor Selection Guide

100 A RANGE

-20 to +33 C

-8 to +50 C

-8 to +50 C

+6 to +69 C

+25 to +92 C

+41 to +114 C

R @ 25 C

5 k

10 k

10 k

20 k

50 k

100 k

o

MODEL

TCS605

TCS610

TCS10K5

TCS620

TCS650

TCS651

o 10 A RANGE

-55 to -2 C

-45 to +13 C

-45 to +13 C

-35 to +28 C

-18 to +49 C

-6 to +67 C

o

o

o

o

o

o o

o

o

o

o

[2.4 mm]0.095"

[5.08 mm]0.20"

[76.2 mm]3.00"

[3.04 mm]0.12"

Wire gauge = 30 AWG

Dimensions shown are maximum values. Exact dimensions vary.

Pb

RoHS Compliant

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TCS620

PAGE 2

TCS620-00400-D

RESISTANCE VERSUS TEMPERATURE RESPONSETCS620 20 k THERMISTOR @ 25C

10 A TEMPERATURE RANGE: -35 to +28C100 A TEMPERATURE RANGE: +6 to +69C

TCS620

You can approximate the response of a thermistor with the Stein-hart-Hart Equation. The A, B, and C values listed below apply to the following equation. The coeffi cients are optimized for the ranges covered by the reference currents.

1 = A + B x ln R + C x (ln R)3, Twhere R is in ohms and T is in Kelvin.

PAGE 2

Steinhart-Hart Coeffi cients

10 A RANGE 100 A RANGEA

B

C

A

B

C

9.7142E-04

2.3268E-04

8.0591E-08

9.6542E-04

2.3356E-04

7.7781E-08

TEMP(C)

RT()

VOLT (V)(10 A)

VOLT (V)(100 A)

-35-34-33-32-31-30-29-28-27-26-25-24-23-22-21-20-19-18-17-16-15-14-13-12-11-10-9-8-7-6-5-4-3-2-1

4862004560004278004016003772003544003330003132002946002772002610002458002316002184002060001942601833201730801634601544401459601380001305201235001169001106801048409934094160892808468080340762407240068760

4.8624.5604.2784.0163.7723.5443.3303.1322.9462.7722.6102.4582.3162.1842.0601.9421.8331.7301.6341.5441.4591.3801.3051.2351.1691.1061.0480.9930.9410.8920.8460.8030.7620.7240.687

TEMP(C)

RT()

VOLT (V)(10 A)

VOLT (V)(100 A)

012345678910111213141516171819202122232425262728293031323334

6532062080590205612053380508004836046040438404178039800379403618034520329403142030000286402736026140249802388022840218402090020000191441833017554168161611215442148041419613616

0.6530.6200.5900.5610.5330.5080.4830.4600.4380.4170.3980.3790.3610.3450.3290.3140.3000.2860.2730.2610.2490.2380.2280.2180.2090.2000.1910.1830.175

4.8364.6044.3844.1783.9803.7943.6183.4523.2943.1423.0002.8642.7362.6142.4982.3882.2842.1842.0902.0001.9141.8331.7551.6811.6111.5441.4801.4191.361

TEMP(C)

RT()

VOLT (V)(10 A)

VOLT (V)(100 A)

3536373839404142434445464748495051525354555657585960616263646566676869

130621253412030115481109010652102329832945090868736840280827776748472046936668064346198597457565550535051604978480246344472431641684024388837563628

1.3061.2531.2031.1541.1091.0651.0230.9830.9450.9080.8730.8400.8080.7770.7480.7200.6930.6680.6430.6190.5970.5750.5550.5350.5160.4970.4800.4630.4470.4310.4160.4020.3880.3750.362

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TCS620

PAGE 3

TCS620-00400-D

NOTICE: The information contained in this document is subject to change without notice. Wavelength will not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material. No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Wavelength.

SAFETY:There are no user serviceable parts inside this product. Return the product to Wavelength for service and repair to ensure that safety fea-tures are maintained.

LIFE SUPPORT POLICY:As a general policy, Wavelength Electronics, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the Wavelength product can be reasonably expected to cause failure of the life support device or to signifi cantly affect its safety or effectiveness. Wavelength will not knowingly sell its products for use in such applications unless it receives written assurances satisfactory to Wavelength that the risks of injury or damage have been minimized, the customer assumes all such risks, and there is no product liability for Wavelength. Examples of devices considered to be life support devices are neonatal oxygen analyzers, nerve stimulators (for any use), auto transfusion devices, blood pumps, defi brillators, arrhythmia detectors and alarms, pacemakers, hemodialysis systems, peritoneal dialysis systems, ventilators of all types, and infusion pumps as well as other devices designated as critical by the FDA. The above are representative examples only and are not intended to be conclusive or exclusive of any other life support device.

CERTIFICATION AND WARRANTYCERTIFICATION:Wavelength Electronics (Wavelength) certifi es that this product met its published specifi cations at the time of shipment. Wavelength further certifi es that its calibration measurements are traceable to the United States National Institute of Standards and Technology, to the extent allowed by that organizations calibration facilities, and to the calibration facilities of other International Standards Organization members.

WARRANTY:This Wavelength product is warranted against defects in materials and workmanship for a period of one (1) year from date of shipment. During the warranty period, Wavelength will, at its option, either repair or replace products which prove to be defective.

WARRANTY SERVICE:For warranty service or repair, this product must be returned to the factory. An RMA is required for products returned to Wavelength for warranty service. The Buyer shall prepay shipping charges to Wavelength and Wavelength shall pay shipping charges to return the product to the Buyer upon determination of defective materials or workmanship. However, the Buyer shall pay all shipping charges, duties, and taxes for products returned to Wavelength from another country.

LIMITATIONS OF WARRANTY:The warranty shall not apply to defects resulting from improper use or misuse of the product or operation outside published specifi cations.

No other warranty is expressed or implied. Wavelength specifi cally disclaims the implied warranties of merchantability and fi tness for a particular purpose.

EXCLUSIVE REMEDIES:The remedies provided herein are the Buyers sole and exclusive remedies. Wavelength shall not be liable for any direct, indirect, special, incidental, or consequential damages, whether based on contract, tort, or any other legal theory.

WAVELENGTH ELECTRONICS, INC.51 Evergreen Drive Bozeman, Montana, 59715phone: (406) 587-4910 Sales/Tech Supportfax: (406) 587-4911e-mail: sales@teamwavelength.comweb: www.teamwavelength.com

REVISION HISTORYREVISIONREV. A

REV. B

REV. C

REV. D

DATE16-Jun-08

25-Sep-09

4-Feb-11

30-Aug-13

NOTESAdded technical detail per customer requestUpdated to refl ect RoHS compliance

Updated dimensions in Figure 1Added wire gauge and extended warranty