SF152E [NEC]
ORGANIC THERMAL SENSITIVE PELLET TYPE 10 AMPERES RATED CURRENT; 有机热敏型球团10安培额定电流
| 型号： | SF152E |
| 厂家： | 
NEC |
| 描述： | ORGANIC THERMAL SENSITIVE PELLET TYPE 10 AMPERES RATED CURRENT |
| 文件： | 总12页 (文件大小：92K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DATA S HEET
Therm al Cutoff SEFUSETM
SF/ E SERIES
ORGANIC THERMAL SENSITIVE PELLET TYPE
10 AMPERES RATED CURRENT
NEC's therm al cutoff SE/E series is sm all, solid and reliable product which can be used under 10 am peres of
rated current. It protects hom e appliances and industrial equipm ent from fire by opening of electrical circuit if it
senses an abnorm al tem perature rise.
FEATURES
™ Approved by UL(USA), CSA(Canada), VDE(Germ any), BEAB(UK), and MITI(J apan)
™ Single operation
™ Com pact, durable and reliable by herm etic seal structure
™ Excellent sensitive to abnorm al tem perature rise and high accuracy in operation
™ Stable characteristics in a long-term
™ Capable of opening at large cutoff current of AC 10 am peres
APPLICATIONS
Electric hom e appliances
Electric industeial equipm ents
Office autom ation equipm ents
Plain paper copiers
Transform ers
Motors, etc.
OUTLINE DIMENSIONS (m m )
φ
φ
φ
20(35)
11
35
66(81)
Note: Dim ensions in ( ) are for long lead devices.
The inform ation in this docum ent is subject to change w ithout notice.
Docum ent No. EM0244EJ 2V1DS00
(KC–15003)
Date Published February 1998 M
Printed in J apan
©
1996
SF/ E SERIES
TYPE NAME DESIGNATION
S F 1 3 9
E
–1
Lead Length (none: standard lead type, –1: long lead type)
Series Nam e (SF/E series)
Operating Tem perature
Type Nam e (SF type)
MARKING
Brand Nam e
S E F U S E
Type Nam e
S F 1 3 9 E
Factory Code
Production Control No.
Rated Functioning Tem perature
Tf142˚C
Rated Current
10 A
MITI
Approved Mark
Rated Voltage
250V ~
Factory Code represents the manufactured placce as shown below.
Japan : none, Thailand : B
Designation of Production Control No.
(example)
98
7 0
Sub-Lot No.
Manufactured month (1 to 9 as Jan. to Sep. and X, Y, Z as Oct., Nov. and Dec.)
Manufactured year (last two figures of A. D.)
2
SF/ E SERIES
STANDARD RATINGS
Safety Standard
Rated
Functioning
Temperature
TH
Th
TC
Type
Nam e
Rated
Rated
Operating
Tem perature
TM
Tm
m ade
m ade
Current Voltage
UL
CSA
VDE
BEAB
in J apan in Thailand
3)
3)
SF70E
SF76E
73 ˚C
77 ˚C
70±2 ˚C
45 ˚C 150 ˚C
51 ˚C 150 ˚C
66 ˚C 150 ˚C
71 ˚C 150 ˚C
84 ˚C 150 ˚C
94 ˚C 150 ˚C
33–312 33–835
0
76±2 ˚C
4
3
SF91E
94 ˚C
91±2 ˚C
1
33–331 33–834
33–332 33–833
33–333 33–832
SF96E
99 ˚C
96±2 ˚C
3
SF109E
SF119E
SF129E
SF139E
SF152E
SF169E
SF188E
SF214E
SF226E
SF240E
113 ˚C
121 ˚C
133 ˚C
142 ˚C
157 ˚C
172 ˚C
192 ˚C
216 ˚C
227 ˚C
240 ˚C
109±2 ˚C
1
119±2 ˚C
6778.2
–4510–
1008
10 Aac 250 Vac
LR
129±2 ˚C 104 ˚C 159 ˚C
139±2 ˚C 114 ˚C 159 ˚C
E71747
C0623
(Resistive) (Resistive)
52330
33–334 33–831
152±2 ˚C 127 ˚C 172 ˚C
1
3
169±2 ˚C 144 ˚C 189 ˚C
33–335 33–830
33–336
3
1
188±2 ˚C 164 ˚C 300 ˚C
1
3
214±2 ˚C 189 ˚C 350 ˚C
33–549 33–827
4)
1
3
226±2 ˚C 190 ˚C
2)
33–354 33–828
237±2 ˚C 190 ˚C 350 ˚C
Notes : 1) The type are for standard lead. When long lead type is required, add “–1” at the end of type nam e.
2) The m axim um tem perature lim it of SF226E is partially approved as shown below.
RECOGNIZED MAXIMUM TEMPERATURE LIMIT OF SF226E
UL
CSA
VDE
BEAB
300˚C
240˚C
330˚C
300˚C
SF226E
Under application to increase to 300˚C
3) The additional electrical ratings are recognized by UL and CSA as follows.
UL : 277 Vac / 15 A (Resistive), 240 Vac / 15 A (Resistive), 120 Vac / 15 A (Resistive, Inductive),
CSA : 250 Vac m ax. / 15 A m ax. (Resistive, Inductive)
4) SF169E, SF188E, SF214E, SF226E and SF240E are recognized the Conductive Heat Aging Test (CH-ratings) of UL.
3
SF/ E SERIES
Definition of Term s
●
Rated Functioning Tem perature
Rated functioning tem perature is the operating tem perature of therm al cutoffs, m easured using the m ethod
specified in the safety standard. In Electrical Appliance and Material Control Law of J apan, case operation
should be within the specified operating tem perature range of ± 7 ˚C. In standards that com ply with the IEC
standard (such as UL, CSA, VDE, BEAB), it is called the rated functioning tem perature, and should operate
within the prescribed tem perature range of +0/–10 C.
It is represented by the sym bol TF in the UL standard, and by the sym bol Tf in the CSA, VDE and BEAB
standards.
In SEFUSE, a tem perature that com plies with both standards is set as the rated functioning tem perature, and
is indicated on the body of the therm al cutoff.
●
●
●
Operating Tem perature
Operating tem perature is the operating tem perature range when the therm al cutoff is m ade to operate inside
a constant tem perature oven whose tem perature is raised at the rate of 1 ˚C/m in. while a detection current of
100 m A or lower is applied.
The operating tem perature is a standard set by NEC and is not specified by a safety standard.
TH, Th. Tc (Holding Tem perature)
Holding tem perature is the m axim um tem perature at which, when applying a rated current to the therm al
cutoff, the state of conductivity is not changed during 168 hours.
It is represented by the sym bol TH in the UL standard, Th in the CSA standard, and Tc in the VDE and BEAB
standards.
TM, Tm (Maxim um Tem perature Lim it)
Maxim um tem perature lim it is the m axim um tem perature for which conductivity does not occur again after
therm al cutoff operation.
It is represented by the sym bol TM in the UL standard and by Tm in the CSA, VDE and BEAB standards.
●
●
Rated Current
Maxim um alternating current that can pass through the therm al cutoff and that the therm al cutoff can cut off
in safety and reliability.
Rated Voltage
Maxim um circuit voltage that the therm al cutoff can cut off in safety and reliability.
4
SF/ E SERIES
Perform ance Data
SF/ E Series
Tem perature Rise
Response Tim e
40
30
20
10
SF/E
40
30
20
10
0
10
20
30
40
Tem perature difference (˚C)
(oil tem p. m inus operating tem p.)
5
5
10
15
20
Pass-through Current (A)
Initial Characteristics
High Tem perature Storage Test
@140˚C
106
105
104
2.0
1.5
1.0
1.5
2
0
2
+
169
SF169E
SF169E
168
1.0
–
167
0.5
@119˚C
@89˚C
@76˚C
+
140
106
105
104
2.0
1.5
1.0
1.5
2
0
2
SF139E
SF139E
139
1.0
–
138
0.5
+
112
106
105
104
2.0
1.5
1.0
1.5
2
0
2
SF109E
SF109E
111
1.0
–
110
0.5
+
97
106
105
104
2.0
1.5
1.0
1.5
2
0
2
SF96E
SF96E
96
1.0
–
95
0.5
@50˚C
106
105
104
2.0
1.5
1.0
1.5
2
0
2
+
71
SF70E
SF70E
70
1.0
–
69
0.5
Insulation
Change of
Operating
Tem perature
(˚C)
0
10
100
1,000
10,000
Withstand Voltage
after Operation
(kV)
Operating
Tem perature
(˚C)
Internal
Resistance
(m Ω/ 25 m m )
Part
Num ber
Part
Num ber
Resistance after
Operation
(MΩ)
Tim e (Hours)
Note : The values following @ are the storage tem perature.
5
SF/ E SERIES
Cautions
This section describes cautions designed to protect the perform ance of the therm al cutoff, Be sure to read and
fully understand these cautions.
To obtain full perform ance from the therm al cutoff, it is necessary for the custom er to appropriately store
the therm al cutoff, design appropriate circuits for the application, and perform evaluations, m ounting and
testing as necessary. Problem s arising from the inappropriate execution of the above are the responsibility
of the custom er, and NEC declines any and all responsibility.
Design Cautions
●
Do not use this device for any purpose other than as a therm al cutoff.
The therm al cutoff is designed to detect abnorm al rises in tem perature and break circuits if needed. It is not
a current fuse that cuts excess current. If used as a current fuse, the SEFUSE m ay m alfunction.
●
Do not use this device in aerospace equipm ent, aeronautical equipm ent, nuclear reactor control system s, Iife
support equipm ent or system s, transportation m achinery engine control or safety-related equipm ent.
This device is designed for use in household electric appliance, office autom ation equipm ent, audio and video
equipm ent, com puter com m unications equipm ent, test and m easurem ent equipm ent, personal electronic
equipm ent and transportation equipm ent (excluding engine control).
●
The custom er should select the proper therm al cutoff device, m ounting location, and m ounting m ethod as
appropriate for each application.
Verify whether the chosen selections are appropriate by repeatedly testing the final design for therm al cutoff
under norm al conditions as well as under predicted m axim um abnorm al conditions.
●
Make designs so that the tem perature of the body of the therm al cutoff does not exceed the tem peratures
shown in Table 1.
If, the tem perature is exceeded on a regular basis, the therm al cutoff m ay start operating only at tem peratures
lower than the norm al operating tem perature. Malfunctions m ay also occur. Even if the therm al cutoff's
operating tem perature is exceeded, it m ay m alfunction.
Body
Type
Tem perature
SF 70E
SF 76E
SF 91E
SF 96E
SF109E
SF119E
SF129E
SF139E
SF152E
SF169E
SF188E
SF214E
SF226E
SF240E
50˚C
56˚C
71˚C
76˚C
89˚C
99˚C
109˚C
119˚C
132˚C
140˚C
140˚C
140˚C
140˚C
140˚C
Table 1.
6
SF/ E SERIES
●
The body tem perature of the therm al cutoff becom es higher as current passes through and m ight rise higher
than the am bient operating tem perature (see test data). The tem perature m ay rise even higher depending on
the m ounting m ethod and other conditions. Therefore, after m ounting the therm al cutoff under the sam e
conditions you would use for the actual application, work the final product and m easure the body tem perature
of the therm al cutoff.
●
●
Use the therm al cutoff with a voltage and current level lower than the rated level.
If the therm al cutoff is used with a voltage or current level higher than the rated level, contacts m ay m elt
causing the fuse to m alfunction.
Do not use the therm al cutoff in water, organic solvents or other liquids, or environm ents containing sulfurous
acid gas, nitrous acid gas, or high hum idity. Doing so will cause deterioration of the sealing resin, the therm al
cutoff m ay operate at lower than operating tem perature, or any other m alfunctions m ay occur. Also, the
therm al cutoff m ay not operate even if its operating tem perature is exceeded.
Lead w ire process
●
When bending the lead wire, in order to protect the resin seal from excessive pressure, secure the lead wire
cIose to the case and bend the part beyond the secured section.
3 m m or m ore
Secured
Secured
The lead wire should be bent at a distance 3 m m or m ore from the body of the fuse, and should not be twisted.
The tensile strength applied to the lead wire should be 5 kg or less.
●
●
The strength applied to the body of the therm al cutoff should be 10 kg or less.
SF(10 kgf)
φ 0.8 steel wire
Deform ation of the case m ay change the location of the m oving electrode during operation and m ay cause the
therm al cutoff to operate only at tem peratures lower than the norm al operating tem perature range. The ther-
m al cutoff also m ay not operate even if the therm al cutoff's operating tem perature is exceeded.
Mounting
SEFUSE can be m ounted by soldering, caulking, or welding.
●
If soldering, note that the therm al cutoff m ay not function because of excessive solder tem perature.
To prevent such m alfunctions, you can hold the lead near the case using a tool and solder for short intervals
at a tim e, allowing the heat to escape.
Another effective m ethod is to use a lower solder tem perature and to solder at a location that is distant from
the case.
●
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 m ay generate an abnorm ally high
tem perature that will cause the therm al cutoff to operate (break the circuit).
7
SF/ E SERIES
●
It is recom m ended that the connecting position at the lead of resign-sealed side should be 5 m m or m ore from
the body of the therm al cutoff.
Position of installation
5 m m or m ore
●
After m ounting the therm al cutoff, be careful not to apply force that m ay pull, push or twist the lead wires.
●
When using an SF type with lead form ing, be sure not to m ake the lead on the resin-sealed side touch the
case. This would cause the current to flow from the lead on the resin-sealed side to the opposite lead so that
the therm al cutoff cannot break the circuit.
Note that the body of the SF type is the sam e in potential as the circuit. Therefore, it m ust be electrically
isolated from the other m etalic part.
Storage
●
The body and lead A are silver-plated. Therefore, these parts m ay discolor because of sulfuration. In the case,
the m arking of the body wiII becom e difficult to discrim inate or the solder-abiIity of lead wiII decline. To avoid
this, the SEFUSE should not keep around m aterials (such as cardboard or rubber, etc.) which generate sulfurous
acid gas.
●
When the SEFUSE have to be storaged in a cardboard box, the SEFUSE's packs should be put into other bags
(such as polyethylene) and m ake sure the packs seal.
Recom m endation
●
Be careful when m ounting the therm al cutoff because external force, heat, or a harm ful atm osphere (contain-
ing excessive hum idity or sulfurous acid gas) m ay dam age the characteristics of the therm al cutoff. If appli-
cable, it is recom m ended to warn general consum ers who are not aware of the usage cautions for the therm al
cutoff not to m ount, rem ove or replace the therm al cutoff through a note to this effect in the user's m anual and
other related m aterial.
If yo u d e s ire a n y cla rifica t io n s o r e xp la n a t io n s re g a rd in g t h e s e ca u t io n s , p le a s e ca ll a n NEC s a le s
re p re s e n t a t ive .
The values contained in this docum ent w ere obtained under certain testing conditions at NEC. They are not
guaranteed and are for reference only.
8
SF/ E SERIES
9
SF/ E SERIES
10
SF/ E SERIES
11
SF/ E SERIES
No part of this docum e nt m ay be copie d or re produce d in any form or by any m e ans w ithout the prior
written consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may
appear in this document.
NEC Corporation does not assume any liability for infringement of patents, copyrights or other intellectual
property rights of third parties by or arising from use of a device described herein or any other liability arising
from use of such de vice . No lice nse , e ithe r e xpre ss, implie d or othe rwise , is grante d unde r any pate nts,
copyrights or other intellectual property rights of NEC Corporation or others.
While NEC Corporation has be e n m aking continuous e ffort to e nhance the re liability of its e le ctronic
components, the possibility of defects cannot be eliminated entirely. To minimize risks of damage or injury
to persons or property arising from a defect in an NEC electronic component, customers must incorporate
sufficient safety measures in its design, such as redundancy, fire-containment, and anti-failure features.
NEC devices are classified into the following three quality grades:
“Standard”, “Special”, and “Specific”. The Specific quality grade applies only to devices developed based
on a cus tom e r de s ignate d “quality as s urance program ” for a s pe cific application. The re com m e nde d
applications of a device depend on its quality grade, as indicated below. Customers must check the quality
grade of each device before using it in a particular application.
Standard: Computers, office equipment, communications equipment, test and measurement equipment,
audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and
industrial robots
Spe cial: Transportation e quipme nt (automobile s, trains, ships, e tc.), traffic control syste ms, anti-disaste r
systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life
support)
Specific: Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support
systems or medical equipment for life support, etc.
The quality grade of NEC de vice s is "Standard" unle ss othe rwise spe cifie d in NEC's Data She e ts or Data
Books.
If cus tom e rs inte nd to us e NEC de vice s for applications othe r than thos e s pe cifie d for Standard quality
grade, they should contact an NEC sales representative in advance.
Anti-radioactive design is not implemented in this product.
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