document number: 68019 revision 04-dec-01 www.vishay.com 2 TSR v ishay techno surge resistor sip pair of matched resistors application ? secondary protection for telecon line cards ? lightning protection to bellcore gr-1089 and itu-t k.20 ? optional version with thermal fuse ? custom designs available lightning surge tests bellcore spec. gr-1089: 10 x 1000 m seconds 1kv 2 x 10 m seconds 2.5kv itu-t k.20: 10 x 700 m seconds 2kv power cross test: per bellcore spec. electrical specifications resistance values: 20 w to 200 w standard values (r 1 = r 2 ): 24 w , 50 w , 100 w , 200 w resistance tolerance:* 0.5% std ratio tolerance:* 0.5% std tcr:* 100ppm/ c std power dissipation (per resistor) @ 25 c: 2 watts t emperature range: - 55 c to + 125 c environmental specifications t ests per mil-std-202 resistance to solvents: no marking deterioration resistance to solder heat: 0.5% or 0.5 w whichever is greater solderability: > 95% coverage insulation resistance: 10m w minimum (isolated pins) bias humidity test: 50 volts, 85% relative humidity, 85 c schematics r1 r2 1 713 19 *contact applications engineering for tighter specifications. the TSR surge resistor from vishay techno is used to protect sensitive components and circuits from the surges introduced by lightning strikes and power cross conditions. the proprietary thick film technology used in the TSR can dissipate a large amount of energy during a short transient condition. these networks are designed to meet the applicable requirement of bellcore gr-1089 and itu-t k.20. the TSR is available in large quantities with a short lead-time.
www.vishay.com 3 TSR v ishay techno document number: 68019 revision 04-dec-01 mechanical specifications t ype: ceramic sip thick film element: 96% alumina t erminals: t inned copper alloy marking - complete part number - manufacturer?s name/code - date code - pin #1 identifier 2.000 0.020 (50.8 0.508) 19 13 7 1 0.090 min. (2.286 min.) 0.130 max. (3.302 max.) 0.020 0.002 (0.508 0.051) 0.600 (15.24) (3 places) 0.010 0.002 (0.254 0.051) (seating plane) 0.100 max. (2.54 max.) back side marking area dimensions in inches (millimeters) ordering information 0.500 max. (12.7 max.) surge resistor sip pair of matched resistors TSR xxx x x model value tolerance ratio tolerance (actual ohmic) c = 0.25% c = 0.25% d = 0.50% std d = 0.50% std f = 1.0% f = 1.0% example: TSR100ff
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