C&H Technology CW - Manual (Page 2)

CW
Wirewound Resistors, Commercial Coated, Axial Lead Vishay Dale
Document Number: 30215 For technical questions, contact: [email protected] www.vishay.com
Revision: 10-Dec-07 21
DIMENSIONS in inches [millimeters]
Notes
(1) On some standard reel pack methods, the leads may be trimmed to a shorter length than shown
(2) B (maximum) dimension is clean lead to clean lead
MATERIAL SPECIFICATIONS
Element: Copper-nickel alloy or nickel-chrome alloy,
depending on resistance value
Core: Ceramic: Steatite or alumina, depending on physical
size
Coating: Special high temperature silicone
Standard Terminals: Tinned Copperweld ®
End Caps: Stainless steel
Part Marking: DALE, model, wattage (3) , value, tolerance,
date code
Note
(3) Wattage marked on resistor will be “V” characteristic, CW1/2 will
not be marked with wattage
Note
(4) All ΔR figures shown are maximum, based upon testing requirements per MIL-PRF-26 at a maximum operating temperature of + 350 °C.
ΔR maximum figures are considerably lower when tested at a maximum operating temperature of + 250 °C.
MODEL
DIMENSIONS in inches [millimeters]
A B (maximum) (2) C D
CW1/2 0.250 ± 0.031 [6.35 ± 0.787] 0.281 [7.14] 0.085 ± 0.020 [2.16 ± 0.508] 0.020 ± 0.002 [0.508 ± 0.051]
CW001 0.406 ± 0.031 [10.31 ± 0.787] 0.437 [11.10] 0.094 ± 0.031 [2.39 ± 0.787] 0.020 ± 0.002 [0.508 ± 0.051]
CW01M 0.285 ± 0.025 [7.24 ± 0.635] 0.311 [7.90] 0.110 ± 0.015 [2.79 ± 0.381] 0.020 ± 0.002 [0.508 ± 0.051]
CW002 0.625 ± 0.062 [15.87 ± 1.57] 0.765 [19.43] 0.250 ± 0.032 [6.35 ± 0.813] 0.040 ± 0.002 [1.02 ± 0.051]
CW02M 0.500 ± 0.062 [12.70 ± 1.57] 0.562 [14.27] 0.185 ± 0.015 [4.70 ± 0.381] 0.032 ± 0.002 [0.813 ± 0.051]
CW02B 0.562 ± 0.062 [14.27 ± 1.57] 0.622 [15.80] 0.188 ± 0.032 [4.78 ± 0.813] 0.032 ± 0.002 [0.813 ± 0.051]
CW02B...13 0.500 ± 0.062 [12.70 ± 1.57] 0.563 [14.30] 0.188 ± 0.032 [4.78 ± 0.813] 0.032 ± 0.002 [0.813 ± 0.051]
CW02C 0.500 ± 0.062 [12.70 ± 1.57] 0.593 [15.06] 0.218 ± 0.032 [5.54 ± 0.813] 0.040 ± 0.002 [1.02 ± 0.051]
CW02C...14 0.500 ± 0.062 [12.70 ± 1.57] 0.593 [15.06] 0.218 ± 0.032 [5.54 ± 0.813] 0.032 ± 0.002 [0.813 ± 0.051]
CW005 0.875 ± 0.062 [22.22 ± 1.57] 1.0 [25.40] 0.312 ± 0.032 [7.92 ± 0.813] 0.040 ± 0.002 [1.02 ± 0.051]
CW005...2 0.875 ± 0.062 [22.22 ± 1.57] 1.0 [25.40] 0.250 ± 0.032 [6.35 ± 0.813] 0.032 ± 0.002 [0.813 ± 0.051]
CW005...3 0.875 ± 0.062 [22.22 ± 1.57] 1.0 [25.40] 0.312 ± 0.032 [7.92 ± 0.813] 0.032 ± 0.002 [0.813 ± 0.051]
CW007 1.218 ± 0.062 [30.94 ± 1.57] 1.281 [32.54] 0.312 ± 0.032 [7.92 ± 0.813] 0.040 ± 0.002 [1.02 ± 0.051]
CW010 1.781 ± 0.062 [45.24 ± 1.57] 1.875 [47.62] 0.375 ± 0.032 [9.52 ± 0.813] 0.040 ± 0.002 [1.02 ± 0.051]
CW010...3 1.781 ± 0.062 [45.24 ± 1.57] 1.875 [47.62] 0.375 ± 0.032 [9.52 ± 0.813] 0.032 ± 0.002 [0.813 ± 0.051]
D
C
1.50 [38.10] (1)
minimum
A
B
RATED POWER
IN
%
AMBIENT TEMPERATURE IN °C
25
0
20
40
60
80
100
120
- 65
150 350 50 250 0 - 50
CHAR. U
Derating
CHAR. V
PERFORMANCE (4)
TEST CONDITIONS OF TEST
TEST LIMITS
(CHARACTERISTIC V)
Thermal Shock Rated power applied until thermally stable, then a minimum of 15 min at - 55 °C ± (2.0 % + 0.05
Ω) ΔR
Short Time Overload 5 x rated power (3.75 W and smaller), 10 × rated power (4 W and larger) for 5 s ± (2.0 % + 0.05 Ω) ΔR
Dielectric Withstanding Voltage 1000 V
rms
, 1 min ± (0.1 % + 0.05
Ω) ΔR
Low Temperature Storage - 65 °C for 24 h ± (2.0 % + 0.05 Ω) ΔR
High Temperature Exposure 250 h at + 350 °C ± (4.0 % + 0.05
Ω) ΔR
Moisture Resistance MIL-STD-202 Method 106, 7b not applicable ± (2.0 % + 0.05 Ω) ΔR
Shock, Specified Pulse MIL-STD-202 Method 213, 100 g’s for 6 ms, 10 shocks ± (0.2 % + 0.05
Ω) ΔR
Vibration, High Frequency Frequency varied 10 to 2000 Hz, 20 g peak, 2 directions 6 h each ± (0.2 % + 0.05 Ω) ΔR
Load Life 2000 h at rated power, + 25 °C, 1.5 h “ON”, 0.5 h “OFF” ± (3.0 % + 0.05
Ω) ΔR
Terminal Strength 5 to 10 s 10 pound pull test; torsion test - 3 alternating directions, 360 °C each ± (1.0 % + 0.05 Ω) ΔR