www.vishay.com 33 vpr220s, vpr221s vishay foil resistors document number: 63050 revision 20-jul-04 surface mount vishay foil ?france +33.4.93.37.28.24 fax: +33.4.93.37.27.31 ?germany +49.9287.710 fax: +49 9287.70435 ?israel +972.3.557.0945 fax: +972.3.558.9121 ?italy + 39.2.300.11919 fax: +39.2.300.11999 ?japan +81.42.729.0661 fax: +81.42.729.3400 ?singapore +65.788.6668 fax: +65.788.0988 ?sweden +46.8.594.70590 fax: +46.8.594.70581 ?uk +44 191 514 8237 fax: +44 1953 457 722 ?usa +1 610 407-4800 fax: +1 610 640-9081 bulk metal foil technology precision foil surface mount power resistors in to-220 configuration features leads preformed for surface mounting power: 8 watts - chassis mounted (per mil-r-39009) load life stability: 0.05% maximum ? r at rated power and temperature for 2,000 hours temperature coefficient of resistance: to 5ppm/ c resistance range: 0.5 to 10k ? tolerance: to 0.01% low thermal emf: 0.15 v/ c maximum (lead effect) non-inductive construction heat sink is isolated tin/lead (sn 60% pb 40%) coated termination standard. lead free (100% sn) option available models vpr220s and vpr221s, made from vishay bulk metal foil, offer low tcr, high stability, tight tolerance and fast response time in a small, molded resistor. model vpr220s is a 2 lead device. model vpr221s is a 4 lead kelvin connected device. the 4 leaded version is highly recommended for precision applications requiring ohmic values of 100r or less. table 1 - specifications load life stability at 2,000 hrs shelf life stability power rating @ + 25 c current noise high frequency operation rise/decay time inductance 4 (l) capacitance (c) voltage coefficient 5 operating temperature range maximum working voltage thermal emf 6 0.05% max ? r under full rated power @ + 25 c 0.0025% ? r/year 8 watts or 3 amps 2 on heat sink 3 1.5 watts or 3 amps 2 in free air further derating not necesary. < 0.010 v (rms)/volt of applied voltage (?40db) 0.2ns @ 1 ? 0.1 h maximum: 0.03 h typical 1 1.0pf maximum: 0.5pf typical 1 < 0.1ppm/v ?55 c to + 150 c 300 v. not to exceed power rating. 0.15 v/ c maximum (lead effect) weight = 1.2 grams maximum *maximum specifications. contact applications engineering for other available values. resistance tightest tcr* range ( ? ) resistance tolerance 50 to 10k 0.01% 5ppm/ c 25 to < 50 0.02% 7ppm/ c 10 to < 25 0.05% 10ppm/ c 5 to < 10 0.1% 13ppm/ c weight = 1 gram maximum *maximum specifications. lower values available but not recommended due to high tcr. resistance tightest tcr* range ( ? ) resistance tolerance 0.5 to < 1 0.05% 5ppm/ c 1 to < 10 0.02% 5ppm/ c 10 to 500 0.01% 5ppm/ c notes: 1. maximum is 1.0% a.q.l. standard for all specifications except tcr. typical is a designers reference which represents that 85% of the units supplied, over a long period of time, will be at least the figure shown or better. 2. whichever is lower. 3. heat sink chassis dimensions and requirements per mil-r-39009/1b: dimension inches mm l 6.00 152.4 w 4.00 101.6 h 2.00 50.8 t 0.04 1.0 4. inductance (l) due mainly to the leads. 5. the resolution limit of existing test equipment (within the measurement capability of the equipment, ?ssentially zero?. 6. v/ c relates to emf due to lead temperature difference. table 2 - vpr220s table 3 - vpr221s product may not be to scale
document number: 63050 revision 20-jul-04 www.vishay.com 34 vpr220s, vpr221s vishay foil resistors surface mount vishay foil ?france +33.4.93.37.28.24 fax: +33.4.93.37.27.31 ?germany +49.9287.710 fax: +49 9287.70435 ?israel +972.3.557.0945 fax: +972.3.558.9121 ?italy + 39.2.300.11919 fax: +39.2.300.11999 ?japan +81.42.729.0661 fax: +81.42.729.3400 ?singapore +65.788.6668 fax: +65.788.0988 ?sweden +46.8.594.70590 fax: +46.8.594.70581 ?uk +44 191 514 8237 fax: +44 1953 457 722 ?usa +1 610 407-4800 fax: +1 610 640-9081 figure 2 - vpr220s, vpr221s forming dimensions in inches (millimeters) 0.365 (9.271) reference 0.050 0.005 (1.27 0.13) 0.150 0.008 (3.81 0.2) 0.015 0.002 (0.381 0.05) 0.078 0.005 (1.98 0.13) heat sink 0.695 0.010 (17.65 0.25) 0.090 0.010 (2.286 0.25) 0.090 (2.286) reference 0.110 (2.794) reference flush with heat sink within 0.002 ( 0.051) before forming after forming figure 1 - power derating curve ambient temperature ( c) +100 +75 +50 +25 0 +25 +50 +75 +100 +125 +150 percent of rated power bulk metal foil technology precision foil surface mount power resistors in to-220 configuration figure 4 - vpr221s dimensions in inches (millimeters) figure 3 - vpr220s dimensions in inches (millimeters) 0.400 0.010 (10.16 0.25) vishay vpr220s 1k0 1% 0101 0.245 0.010 (6.22 0.25) 0.141 0.005 diameter (3.58 0.13) 0.030 0.002 (0.76 0.05) 0.200 0.005 (5.08 0.13) 0.115 0.005 (2.92 0.13) 0.050 0.005 (1.27 0.13) 0.200 0.030 (5.08 0.76) e 2 0.030 0.002 (0.76 0.05) 0.100 0.005 (2.54 0.13) 0.400 0.010 (10.16 0.25) vishay vpr221s 1r0 1% 0101 0.245 0.010 (6.22 0.25) 0.141 0.005 diameter (3.58 0.13) 0.115 0.005 (2.92 0.13) 0.050 0.005 (1.27 0.13) 0.200 0.030 (5.08 0.76) e 1 i 2 i 1 table 4 - ordering information specify vishay vpr220s or vpr221s for surface mount resistors as follows: example: (none) = 60/40tin/lead (none) = bulk pack vpr221s t = 100% tin 5r0000 1.0% t = tape and reel model no. termination resistance value tolerance packaging resistance letter multiplier range designator factor example 0.5 ? to < 1k ? r x1 100r01 = 100.01 ? 1k ? to 10k ? k x10 3 5k2310 = 5,231 ? resistance value, in ohms, is expressed by a series of 6 characters, 5 of which represent significant digits while the 6th is a dual purpose letter that designates both the multiplier and the location of the comma or decimal.
legal disclaimer notice vishay document number: 91000 www.vishay.com revision: 08-apr-05 1 notice specifications of the products displayed herein are subjec t to change without notice. vishay intertechnology, inc., or anyone on its behalf, assume s no responsibility or liability fo r any errors or inaccuracies. information contained herein is intended to provide a product description only. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. except as provided in vishay's terms and conditions of sale for such products, vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and /or use of vishay products including liab ility or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyrigh t, or other intellectual property right. the products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify vishay for any damages resulting from such improper use or sale.
|
