document number: 30209 for tec hnical questions, contact: ww2bresistors@vishay.com www.vishay.com revision: 11-jan-11 1 wirewound resistors, industrial power, flat (hl) hl, nhl flat vishay dale features ? high temperature silicon coating ? mounting accommodations ideally suited to high density packaging ? self-stacking hardware for horizontal or vertical placement ? withstands high vibrations without loosening ? mounting hardware functions as a heat sink allowing greater heat dissipation and less derating of stacked units ? available in non-inductive styles (type nhl) with aryton-perry winding ? compliant to rohs directive 2002/95/ec standard electrical specifications global model historical model power rating p 25 c w resistance range 5 % resistance range 10 % weight (typical) g hl024 hl-24 30 1.0 to 11k 0.10 to 11k 20.14 nhl024 nhl-24 1.0 to 1.2k 1.0 to 1.2k hl035 hl-35 40 1.0 to 26k 0.10 to 26k 30.07 nhl035 nhl-35 1.0 to 3k 1.0 to 3k hl055 hl-55 55 1.0 to 54k 0.10 to 54k 51.25 nhl055 nhl-55 1.0 to 6.8k 1.0 to 6.8k hl070 hl-70 70 1.0 to 77k 0.10 to 77k 60.48 nhl070 nhl-70 1.0 to 9.4k 1.0 to 9.4k hl095 hl-95 95 1.0 to 99.9k 0.10 to 99.9k 76.51 nhl095 nhl-95 1.0 to12.4k 1.0 to 12.4k technical specifications parameter unit hl, nhl flat resistor characteristics temperature coefficient ppm/c 90 for 0.1 to 0.99 ; 50 for 1 to 9.9 ; 30 for 10 and above dielectric withstanding voltage v ac 1000, from terminal to mounting hardware short time overload - 10 x rated power for 5 s maximum working voltage v ( p x r ) 1/2 insulation resistance 1000 m minimum dry, 100 m minimum after moisture test operating temperature range c - 55 to + 350 global part number information global part numbering example: nhl02409z10r00jj global model terminal designation terminal finish resistance value tolerance packaging code special nhl024 (see standard electrical specifications table above for additional p/ns) 09 16 e = lead (pb)-free z = tin/lead n = nickel r = decimal k = thousand 10r00 = 10.0 1k000 = 1 k j = 5.0 % k = 10.0 % e = lead (pb)-free skin pack j (1) = skin pack (j01) (dash number) (up to 2 digits) from 1 to 99 as applicable note (1) tin/lead for type z, le ad (pb)-free for type n historical part number example: nhl-24-09z 10 5 % j01 nhl-24 09z 10 5 % j01 historical model terminal/finish resistance value tolerance packaging * pb containing terminations are not rohs compliant, exemptions may apply ** please see document vishay material category policy: www.vishay.com/doc?99902 hl0 24 0 9 z 10r00 jj n
www.vishay.com for technical questions, contact: ww2bresistors@vishay.com document number: 30209 2 revision: 11-jan-11 hl, nhl flat vishay dale wirewound resistors, industrial power, flat (hl) dimensions in inches [millimeters] type hl flat style power rating vishay hl flat resistor wattage ratings are based on mounting horizontally to 10" x 10" x 0.04" [254.0 mm x 254.0 mm x 1.02 mm] steel plate in 25 c ambient with no air flow. exclusive bracket design mounting strap fits snugly through resistor core and is bound against unit by two eccentric spacers. the bracket eliminates expensive cement s and improves heat transfer and power handling capabilities. material specifications element: copper-nickel alloy of nickel-chrome alloy, depending on resistance value core: ceramic, steatite coating: special high te mperature silicone standard terminals: model e terminals are tinned steel terminal bands: steel part marking: dale, model, wattage, value, tolerance, date code terminal dimensions terminal finish e finish - 100 % sn coated steel. z finish - 60/40 sn/pb coated steel. n finish - nickel coated steel. finish for terminal style 16 is limited to nickel plated steel (n). nhl non-inductive models of equivalent physical and electrical specifications are available with non-inductive (aryton-perry) winding. they are identified by adding the letter n to the front of the hl type designation (nhl024, for example). for nhl models maximum resistance values are lower, see standard electrical specifications table. derating is required for a mbient temperatures above 25 c per the following graph. derating model dimensions in inches [millimeters] a 0.063 [1.59] b 0.063 [1.59] c 0.031 [0.79] distance between terminals (ref.) terminal designation standard optional hl024 1.250 2.500 2.000 0.718 09z 16n nhl024 [31.75] [63.50] [50.80] [18.24] hl035 2.000 3.250 2.750 1.468 09z 16n nhl035 [50.80] [82.55] [69.85] [37.29] hl055 3.500 4.750 4.250 2.968 09z 16n nhl055 [88.90] [120.65] [107.95] [75.39] hl070 4.750 6.000 5.500 4.218 09z 16n nhl070 [120.65] [152.40] [139.70] [107.14] hl095 6.000 7.250 6.750 5.468 09z 16n nhl095 [152.40] [184.15] [171.45] [138.89] 0.625 [15.88] 0.594 [15.08] 0.196 [4.98] dia. typ. a b c 0.563 0.030 [14.29 0.794] 0.438 0.030 [11.11 0.794] 0.313 [7.94] dia. 1.188 [30.16] max. dimension dimensions in inches [millimeters] style 09 style 16 a 0.188 0.188 [4.76] [4.76] b 0.500 0.563 [12.70] [14.29] c 0.104 0.050 [2.64] [1.27] d 0.020 0.020 [0.51] [0.51] s tyle 16 b d a c b d c a s tyle 09 - 65 - 50 0 50 150 250 350 ambient temperature in c 120 100 80 60 40 20 0 % n i r e w o p d e t a r 25 performance test conditions of test test limits thermal shock rated power applied until thermally stable ,then a minimum of 15 min at - 55 c (2.0 % + 0.05 ) r short time overload 10 x rated power for 5 s (2.0 % + 0.05 ) r dielectric withstanding voltage 1000 v rms , 1 min (0.1 % + 0.05 ) r low temperature storage - 55 c for 24 h (2.0 % + 0.05 ) r high temperature exposure 250 h at + 350 c (2.0 % + 0.05 ) r moisture resistance mil-std-202 method 10 6, 7b not applicable (2.0 % + 0.05 ) r shock, specified pulse mil-std-202 method 213, 100 g 's for 6 ms, 10 shocks (0.2 % + 0.05 ) r vibration, high frequency frequency varied 10 hz to 2000 hz, 20 g peak, 2 directions 6 h each (0.2 % + 0.05 ) r load life 1000 h at rated power, + 25 c, 1.5 h on, 0.5 h off (3.0 % + 0.05 ) r
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