sm145g0 NEC Tokin, sm145g0 Datasheet

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sm145g0

Manufacturer Part Number
sm145g0
Description
Fusible Alloy Thermal Sensitive Type Amperes Va.c. Amperes Vd.c. Rated Current
Manufacturer
NEC Tokin
Datasheet
Document No. EM0255EJ5V0DS00 (5th edition)
Date Published March 1998 M
Printed in Japan
Vac. 3 and 5 ampere / 50 Vdc. electrical rating type, added to the product line-up lately, is also available. It
protects home appliances and industrial equipment from fire and accident by opening of electrical circuit if it
senses an abnormal temperature rise.
FEATURES
APPLICATIONS
OUTLINE DIMENSIONS (Unit : mm)
™ Approved by UL (USA), CSA (Canada), VDE (Germany), BEAB (UK) and MITI (Japan)
™ Very small
™ Conpact, durable and veliable by hermetic seal structure.
™ Excellent sensitive to abnormal temperature rise and high accuracy in operation.
™ Stable characteristics in a long-term.
™ Capable of opening at a cutoff current of AC 0.5 amperes and DC 3 and 5 amperes.
™ One shot operation.
0.5 AMPERES (250 Va.c.) and 3 and 5 AMPERES (50 Vd.c.) Rated Current
The NEC's SEFUSE (SM/G series) is a small, solid and reliable thermal cutoff that can be used under 0.5 A / 250
Transformers
Motors
Battery packs
Electric home appliances
Electric Industrial equipments,
Office automation equipments, etc.
FUSIBLE ALLOY THERMAL SENSITIVE TYPE,
The information in this document is subject to change without notice.
40(70)
0.53
Note: Dimensions in parentheses are for long lead devices.
DATA S H E E T
85(145)
5.0
SM/G SERIES
Thermal Cutoff SEFUSE
40(70)
1.6
0.53
©
1992 ( 1997 )
TM

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sm145g0 Summary of contents

Page 1

FUSIBLE ALLOY THERMAL SENSITIVE TYPE, 0.5 AMPERES (250 Va.c.) and 3 and 5 AMPERES (50 Vd.c.) Rated Current The NEC's SEFUSE (SM/G series small, solid and reliable thermal cutoff that can be used under 0 250 ...

Page 2

... SM110G0 115 ˚C 110 2 ˚C SM126G0 131 ˚C 126 2 ˚C SM130G0 135 ˚C 130 2 ˚C SM145G0 150 ˚C 145 2 ˚C +3 SM134G0 139 ˚C 134 ˚C –2 Notes 1) : The type names are for standard lead. When long lead type is required, change the last number “0” to “1”. ...

Page 3

Rated Functioning Temperature Rated functioning temperature is the operating temperature of the thermal cutoff, measured using the method specified in the safety standard. In Electrical Appliance and Material Control Law of Japan, case operation should be within the specified operating ...

Page 4

... SM095G0 1.0 9.0 Withstand Voltage Internal Part Resistance after Operation Temperature Number (m /25 mm) (kV) Response Time 30 SM095G0 SM110G0 20 SM126G0 SM130G0 SM134G0 SM145G0 Temperature Difference (˚C) (oil temp. minus operating temp @125˚C 0 – @115˚C 0 – @110˚C 0 – @106˚ ...

Page 5

Cautions This section describes cautions designed to protect the performance of the thermal cutoff, Be sure to read and fully understand these cautions. To obtain full performance from the thermal cutoff necessary for the customer to appropriately store ...

Page 6

SM/G SERIES The body temperature of the thermal cutoff becomes higher as current passes through and might rise higher than the ambient operating temperature (see test data). The temperature may rise even higher depending on the mounting method and other ...

Page 7

If caulking or welding, be careful to keep the resistance value of the connecting section low. If the connecting section has a high resistance value, the passing current may generate an abnormally high temperature that will cause the thermal cutoff ...

Page 8

SM/G SERIES No part of this document may be copied or reproduced in any form or by any means without the prior written consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in this ...

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