ORGANIC THERMAL SENSITIVE PELLET TYPE 10 AMPERES RATED CURRENT

DATA S H E E T Thermal Cutoff SEFUSETM SF/E SERIES ORGANIC THERMAL SENSITIVE PELLET TYPE 10 AMPERES RATED CURRENT NEC's thermal cutoff SE/E series is small, solid and reliable product which can be used under 10 amperes of rated current. It protects home appliances and industrial equipment from fire by opening of electrical circuit if it senses an abnormal temperature rise. FEATURES ™ Approved by UL(USA), CSA(Canada), VDE(Germany), BEAB(UK), and MITI(Japan) ™ Single operation ™ Compact, durable and reliable 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 large cutoff current of AC 10 amperes APPLICATIONS Electric home appliances Electric industeial equipments Office automation equipments Plain paper copiers Transformers Motors, etc. OUTLINE DIMENSIONS (mm) φ 1.0 φ 4.2 20(35) 11 66(81) 35 Note: Dimensions in ( ) are for long lead devices. The information in this document is subject to change without notice. Document No. EM0244EJ2V1DS00 (KC–15003) Date Published February 1998 M Printed in Japan φ 1.0 © 1996 SF/E SERIES TYPE NAME DESIGNATION SF 139 E –1 Lead Length (none: standard lead type, –1: long lead type) Series Name (SF/E series) Operating Temperature Type Name (SF type) MARKING ∗ Factory Code SEFUSE S F 1 3 9 E Tf142˚C 10 A 250V ~ Brand Name Type Name Production Control No. ∗∗ Rated Functioning Temperature Rated Current Rated Voltage MITI Approved Mark ∗ 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 Type Name SF70E SF76E SF91E SF96E SF109E SF119E SF129E SF139E SF152E SF169E SF188E SF214E SF226E SF240E Rated Operating Functioning Temperature Temperature 73 ˚C 77 ˚C 94 ˚C 99 ˚C 113 ˚C 121 ˚C 133 ˚C 142 ˚C 157 ˚C 172 ˚C 192 ˚C 216 ˚C 227 ˚C 240 ˚C 70±2 ˚C 0 76±2 ˚C 4 3 91±2 ˚C 1 TH Th TC 45 ˚C 51 ˚C 66 ˚C 71 ˚C 84 ˚C 94 ˚C 104 ˚C 114 ˚C 127 ˚C 144 ˚C 164 ˚C 189 ˚C 190 ˚C 190 ˚C TM Tm 150 ˚C 150 ˚C 150 ˚C 150 ˚C 150 ˚C 150 ˚C 159 ˚C 172 ˚C 189 ˚C 300 ˚C 350 ˚C Rated Current 3) Rated Voltage 3) Safety Standard UL CSA VDE BEAB made made in Japan in Thailand 33–312 33–331 33–332 10 Aac 250 Vac LR 52330 6778.2 –4510– 1008 C0623 33–334 33–335 33–336 33–549 4) 33–835 33–834 33–833 33–832 33–831 33–830 33–827 33–828 96±2 ˚C 3 109±2 ˚C 1 119±2 ˚C 129±2 ˚C 139±2 ˚C 152±2 ˚C 1 169±2 ˚C 3 3 188±2 ˚C 1 1 214±2 ˚C 3 1 226±2 ˚C 3 33–333 159 ˚C (Resistive) (Resistive) E71747 2) 237±2 ˚C 350 ˚C 33–354 Notes : 1) The type are for standard lead. When long lead type is required, add “–1” at the end of type name. 2) The maximum temperature limit of SF226E is partially approved as shown below. RECOGNIZED MAXIMUM TEMPERATURE LIMIT OF SF226E SF226E UL 240˚C ∗ CSA 330˚C VDE 300˚C BEAB 300˚C ∗ 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 max. / 15 A max. (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 Terms q Rated Functioning Temperature Rated functioning temperature is the operating temperature of thermal cutoffs, 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 temperature range of ± 7 ˚C. In standards that comply with the IEC standard (such as UL, CSA, VDE, BEAB), it is called the rated functioning temperature, and should operate within the prescribed temperature range of +0/–10 C. It is represented by the symbol TF in the UL standard, and by the symbol Tf in the CSA, VDE and BEAB standards. In SEFUSE, a temperature that complies with both standards is set as the rated functioning temperature, and is indicated on the body of the thermal cutoff. q Operating Temperature Operating temperature is the operating temperature range when the thermal cutoff is made to operate inside a constant temperature oven whose temperature is raised at the rate of 1 ˚C/min. while a detection current of 100 mA or lower is applied. The operating temperature is a standard set by NEC and is not specified by a safety standard. q TH, Th. Tc (Holding Temperature) Holding temperature is the maximum temperature at which, when applying a rated current to the thermal cutoff, the state of conductivity is not changed during 168 hours. It is represented by the symbol TH in the UL standard, Th in the CSA standard, and Tc in the VDE and BEAB standards. q TM, Tm (Maximum Temperature Limit) Maximum temperature limit is the maximum temperature for which conductivity does not occur again after thermal cutoff operation. It is represented by the symbol TM in the UL standard and by Tm in the CSA, VDE and BEAB standards. q Rated Current Maximum alternating current that can pass through the thermal cutoff and that the thermal cutoff can cut off in safety and reliability. q Rated Voltage Maximum circuit voltage that the thermal cutoff can cut off in safety and reliability. 4 SF/E SERIES Performance Data SF/E Series Temperature Rise Response Time 40 SF/E Temperature Rise (˚C) 30 Time for opening after immersion into oil (seconds) 40 30 20 20 10 10 0 5 5 10 15 20 10 20 30 40 Temperature difference (˚C) (oil temp. minus operating temp.) Pass-through Current (A) Initial Characteristics High Temperature Storage Test +2 SF169E 169 SF169E 106 105 104 106 105 104 106 105 104 106 105 104 106 105 104 2.0 1.5 1.0 2.0 1.5 1.0 2.0 1.5 1.0 2.0 1.5 1.0 2.0 1.5 1.0 1.5 1.0 0.5 1.5 1.0 0.5 1.5 1.0 0.5 1.5 1.0 0.5 1.5 1.0 0.5 Internal Resistance (mΩ/25 mm) @140˚C 168 167 140 0 –2 +2 @119˚C SF139E 139 138 112 SF139E 0 –2 +2 @89˚C SF109E 111 110 97 SF109E 0 –2 +2 @76˚C SF96E 96 95 71 SF96E 0 –2 +2 @50˚C SF70E 70 69 SF70E 0 –2 0 10 100 1,000 10,000 Part Number Operating Temperature (˚C) Insulation Withstand Voltage Resistance after after Operation Operation (MΩ) (kV) Part Number Change of Operating Temperature (˚C) Time (Hours) Note : The values following @ are the storage temperature. 5 SF/E SERIES 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, it is necessary for the customer to appropriately store the thermal cutoff, design appropriate circuits for the application, and perform evaluations, mounting and testing as necessary. Problems arising from the inappropriate execution of the above are the responsibility of the customer, and NEC declines any and all responsibility. Design Cautions q Do not use this device for any purpose other than as a thermal cutoff. The thermal cutoff is designed to detect abnormal rises in temperature and break circuits if needed. It is not a current fuse that cuts excess current. If used as a current fuse, the SEFUSE may malfunction. q Do not use this device in aerospace equipment, aeronautical equipment, nuclear reactor control systems, Iife support equipment or systems, transportation machinery engine control or safety-related equipment. This device is designed for use in household electric appliance, office automation equipment, audio and video equipment, computer communications equipment, test and measurement equipment, personal electronic equipment and transportation equipment (excluding engine control). q The customer should select the proper thermal cutoff device, mounting location, and mounting method as appropriate for each application. Verify whether the chosen selections are appropriate by repeatedly testing the final design for thermal cutoff under normal conditions as well as under predicted maximum abnormal conditions. q Make designs so that the temperature of the body of the thermal cutoff does not exceed the temperatures shown in Table 1. If, the temperature is exceeded on a regular basis, the thermal cutoff may start operating only at temperatures lower than the normal operating temperature. Malfunctions may also occur. Even if the thermal cutoff's operating temperature is exceeded, it may malfunction. Body Temperature 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 Type SF 70E SF 76E SF 91E SF 96E SF109E SF119E SF129E SF139E SF152E SF169E SF188E SF214E SF226E SF240E Table 1. 6 SF/E SERIES q 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 conditions. Therefore, after mounting the thermal cutoff under the same conditions you would use for the actual application, work the final product and measure the body temperature of the thermal cutoff. q Use the thermal cutoff with a voltage and current level lower than the rated level. If the thermal cutoff is used with a voltage or current level higher than the rated level, contacts may melt causing the fuse to malfunction. q Do not use the thermal cutoff in water, organic solvents or other liquids, or environments containing sulfurous acid gas, nitrous acid gas, or high humidity. Doing so will cause deterioration of the sealing resin, the thermal cutoff may operate at lower than operating temperature, or any