design and speci ? cations are each subject to change without notice. ask factory for the current technical speci ? cations before purchase and/or use. should a safety concern arise regarding this product, please be sure to contact us immediately. wirewound resistor with ther mal cut-offs & 1 3 2 6 3 4 5 5 # 6 , 7 8 3 9 10 product code element resistance tolerance standard resistance tolerance resistance valuethe ?rst two digits are signi?cant ?gures of resistance and the third one denotes number of zeros following. decimal point is expressed by r as 6.8=6r8 code 5 power 5 w type style code t styleradial insertion type code j k tol. 5 %10 % fusingresistors thermal cut-offs code b c voltage 250 v250 v current 2 a2 a temp. 134 c145 c 10 ? : j <10 ? : k rated load (%) ambient temperature (c) 0 20 40 60 80 120 C40 C20 0 20 40 60 80 100 120 160 140 100 25 c 90 c 5tb 5tc wirewound resistor with ther mal cut-offs type: eru5t features accurate fusing characteristics low cost and easy handling space saving design excellent anti-surge characteristics rohs compliant power derating curve f or resistors operated in ambient tem per a tures above 25 c, power rating shall be derated in ac cor dance with the ? gure on the right. explanation of part numbers ratings recommended applications switching regulators, video adapters, safety circuits code power rating (w) current rating (a) thermal cut-off (c) resistance range ( ) standard quantity (pcs.) mass (weight) [g/pc.] b 1.6 2 134 0.18 to 680 500 6.5 c 1.8 2 145 0.18 to 680 500 6.5 aug. 2012 01 7 5 downloaded from: http:///
design and speci ? cations are each subject to change without notice. ask factory for the current technical speci ? cations before purchase and/or use. should a safety concern arise regarding this product, please be sure to contact us immediately. wirewound resistor with ther mal cut-offs 1000 100 10 1 11 0 3 1000 30 100 300 fusing time (s) applied load (w) (wirewound) (thermal cutoff) 1000 100 10 1 11 0 3 1000 30 100 300 fusing time (s) applied load (w) (wirewound) (thermal cutoff) 1000 100 10 1 11 0 3 1000 30 100 300 fusing time (s) applied load (w) (wirewound) (thermal cutoff) 1000 100 10 1 11 0 3 1000 30 100 300 fusing time (s) applied load (w) (wirewound) (thermal cutoff) 131 5 +2 C1 f 0.80.1 f 0.60.1 25.51.5 4.5 +2.0 C1.0 91 safety precautions eru5tbk5r1 eru5tbj100 dimensions in mm (not to scale) fusing characteristics the following are precautions for individual products. please also refer to the common precautions for fixed resistors shown on this catalog. 1. when voltage exceeds the rated voltage and/or a current exceeds the rated current and are con tin u ous ly ap plied, the element of wirewound resistor with thermal cut offs (hereafter called the resistors) produces ex ces sive heat, which may not only deteriorate the built-in the thermal cutoffs but also blow it. 2. the resistors have a built-in the thermal cutoffs. therefore, use and store them within their re spec tive op er at ing and storing temperature ranges as speci? ed in individual delivery spec i ? ca tions. 3. carefully check the inductance effect of the resistors when using them in a high-frequency cir cuit. 4. if a transient load (heavy load in a short time) like a pulse is expected to be applied, check and eval u ate the operations of the resistors when installed in your products under the most ad verse conditions before use. packaging methods please contact the factory for packaging meth ods. eru5tbk6r8 er u5tbj150 aug. 2012 01 7 6 downloaded from: http:///
|
