high value surface mounted resistors hr series www.bitechnologies.com www.irctt.com www.welwyn-tt.com general note tt electronics reserves the right to make changes in product specifcation without notice or liability. all information is subject to tt electronics own data and is considered accurate at time of going to print. ? tt electronics plc 11. 11 custom designs / sizes available resistance range to 50g ohms terminations available for wire bonding or soldering low voltage coeffcient of resistance electrical data power rating the high r esistance value of these devices is such that power dissipation is always small. the rating is ther efor e determined by voltage considerations only , as shown in the table below . 0503 0805 1005 1206 notes s t l o v 0 1 t a d e r u s a e m g 0 5 o t m 0 0 1 g 0 2 o t m 0 1 s m h o * e g n a r e c n a t s i s e r limiting element voltage volts 50 100 150 200 5 5 1 + o t 5 5 - c e g n a r e r u t a r e p m e t t n e i b m a s t l o v 0 1 t a d e r u s a e m 0 0 0 1 - o t 0 0 0 5 1 - o t 0 0 0 0 2 - o t 0 0 0 5 2 - o t 0 c / m p p r c t resistance tolerance % 10m to 500m:10 100m to 1g:5,10 > 1g to 50g:25, 50 >500m : 25, 50 high v alue surface mounted resistors hr series s custom designs / sizes available s resistance range to 50g ohms s t erminations available for wir e bonding or soldering s low voltage coef ficient of r esistance general note w elwyn components r eserves the right to make changes in pr oduct specification without notice or liability . all information is subject to w elwyn? s own data and is consider ed accurate at time of going to print. ? w elwyn components limited bedlington, northumberland ne22 7aa, uk t elephone: +44 (0) 1670 822181 facsimile: +44 (0) 1670 829465 email: info@welwyn-tt.com w ebsite: www .welwyn-tt.com issue b 03.02 a subsidiary of tt electr onics plc w elwyn components 20 dimensions (mm) & w eight (g) w rap ar ound planar style l w t max. a b ? c wt 0503 1.25 0.2 0.63 0.15 0.5 not available 0.2 0.1 0.005 0805 2.0 0.3 1.25 0.2 0.6 0.3 0.15 0.9min 0.3 0.1 0.009 1005 2.5 0.3 1.25 0.2 0.7 not available 0.4 0.15 0.015 1206 3.2 0.4 1.6 0.2 0.7 0.4 0.2 1.7min 0.4 0.15 0.020 t w a a b l w rap-around terminations (3 faces) t w l planar terminations c c construction the r esistor material is scr een printed onto a 96% alumina substrate and cover ed with a pr otection comprising of a glaze followed by an organic coating. this construction gives an insulated device. marking all r elevant information is r ecor ded on the primary package or r eel. t erminations planar (or single-sided) termination is gold and suitable for wir e-bonding; wrap ar ound is suitable for soldering. solderability w rap-ar ound terminations on hr r esistors have good ?leach? r esistance pr operties. they will withstand immersion in solder at 260c for 30 seconds. alter native styles for surface mounting r esistors *higher values available, consult factory for details physical data ? this dimension determines the number of conductors which may pass under the surface mounted device. electrical data power rating the high r esistance value of these devices is such that power dissipation is always small. the rating is ther efor e determined by voltage considerations only , as shown in the table below . 0503 0805 1005 1206 notes s t l o v 0 1 t a d e r u s a e m g 0 5 o t m 0 0 1 g 0 2 o t m 0 1 s m h o * e g n a r e c n a t s i s e r limiting element voltage volts 50 100 150 200 5 5 1 + o t 5 5 - c e g n a r e r u t a r e p m e t t n e i b m a s t l o v 0 1 t a d e r u s a e m 0 0 0 1 - o t 0 0 0 5 1 - o t 0 0 0 0 2 - o t 0 0 0 5 2 - o t 0 c / m p p r c t resistance tolerance % 10m to 500m:10 100m to 1g:5,10 > 1g to 50g:25, 50 >500m : 25, 50 high v alue surface mounted resistors hr series s custom designs / sizes available s resistance range to 50g ohms s t erminations available for wir e bonding or soldering s low voltage coef ficient of r esistance general note w elwyn components r eserves the right to make changes in pr oduct specification without notice or liability . all information is subject to w elwyn? s own data and is consider ed accurate at time of going to print. ? w elwyn components limited bedlington, northumberland ne22 7aa, uk t elephone: +44 (0) 1670 822181 facsimile: +44 (0) 1670 829465 email: info@welwyn-tt.com w ebsite: www .welwyn-tt.com issue b 03.02 a subsidiary of tt electr onics plc w elwyn components 20 dimensions (mm) & w eight (g) w rap ar ound planar style l w t max. a b ? c wt 0503 1.25 0.2 0.63 0.15 0.5 not available 0.2 0.1 0.005 0805 2.0 0.3 1.25 0.2 0.6 0.3 0.15 0.9min 0.3 0.1 0.009 1005 2.5 0.3 1.25 0.2 0.7 not available 0.4 0.15 0.015 1206 3.2 0.4 1.6 0.2 0.7 0.4 0.2 1.7min 0.4 0.15 0.020 t w a a b l w rap-around terminations (3 faces) t w l planar terminations c c construction the r esistor material is scr een printed onto a 96% alumina substrate and cover ed with a pr otection comprising of a glaze followed by an organic coating. this construction gives an insulated device. marking all r elevant information is r ecor ded on the primary package or r eel. t erminations planar (or single-sided) termination is gold and suitable for wir e-bonding; wrap ar ound is suitable for soldering. solderability w rap-ar ound terminations on hr r esistors have good ?leach? r esistance pr operties. they will withstand immersion in solder at 260c for 30 seconds. alter native styles for surface mounting r esistors *higher values available, consult factory for details physical data ? this dimension determines the number of conductors which may pass under the surface mounted device.
high value surface mounted resistors hr series www.bitechnologies.com www.irctt.com www.welwyn-tt.com general note tt electronics reserves the right to make changes in product specifcation without notice or liability. all information is subject to tt electronics own data and is considered accurate at time of going to print. ? tt electronics plc 11. 11 high value surface mounted resistors hr series ? welwyn components limited bedlington, northumberland ne22 7aa, uk telephone: +44 (0) 1670 822181 facsimile: +44 (0) 1670 829465 email: info@welwyn-tt.com website: www.welwyn-tt.com performance data issue b 03.02 welwyn components l a c i py t mum i x am load at rated power: 1000 hours at 70c ? 1 2 %r overload ? 2.0 1 %r shelf life: 12 months at room temperature ? 1 2 %r temperature rapid change ? 3.0 1 %r change on wave soldering ? 5.0 1 %r 005 : 6021 o t 5080 001 : 3050 s t l ov f oo r p ega t l ov voltage coefficient of resistance (10v - 25v) %/v 4.0 1 5080 3.0 8.0 5001 50.0 2.0 6021 21 application notes mounting this chip resistor is ideally suited for handling by automatic methods due to its rectangular shape and the small dimensional tolerances. electrical connection to a ceramic substrate or to a printed circuit board can be made by wire bonding to planar terminations or by reflow soldering of wrap-around terminations. the ?f? terminations provide good leach properties and ensure reliable contact. due to the robust construction the resistor chip can be immersed in the solder bath for 30 seconds at 260c. this enables the resistor to be mounted on one side of a printed circuit and wire- leaded components on the other side. the resistor must be kept dry during use to avoid leakage. the presence of moisture will not damage the resistor in any way. packaging resistor chips are supplied taped and reeled on standard 8mm tape to iec 286-3. quantity per reel 3000 max. planar terminations resistor chips are supplied in waffle packs. ordering procedure example: hr1206 with solderable wraparound terminations at 10 gigohms and 50% tolerance on a reel of up to 3000 pieces - h r 1 2 0 6 f ? 1 0 g y i type size termination f solderable wraparound 0805, 1 206 only g gold pad planar all sizes value (use iec62 code) tolerance (use iec62 code) j 5% 5 25% k 10% y 50% packing i tape 0805 f , 1206 f up to 3000/reel standard waffle g termination
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