UR1.7 Datasheet, PDF (2/2 Pages) Willow Technologies Ltd – Cylindrical Ultra High Ohmic Resistors,Thick film,Non-Inductive

UR Cylindrical Ultra High Ohmic
Resistors,Thick film,Non-Inductive
DIMENSIONS [mm]
35 ± 5
A
B
C
DERATING CURVE
100
80
60
40
20
0
25
75 125 175 195
Ambient-Temperature (˚C)
SPECIFICATIONS
Endurable Harsh to Environment
(Temperature ):
-55ºC to +195°C
Max. broken temperature of resistives is
600℃ (for 70min.)
Thermal Shock :
Mil-Std-202, Method- 107, Cond. C, ΔR
0.50% max.
Load Life :
1.000 hours at rated power ΔR 0.7% max.
Insulation Resistance :
10,000MΩ Min.
Cap & Lead of Material:
Tinned Cap., tinned copper wire
Encapsulation :
Anti-humidity Epoxy conformal.coat
Resistive Material :
Thick Film.
Contact method between Resistives and
Termination Caps :
Individual Conductive Pads . So , called
"NCR" Non-contact resistance.
Temperature
Coefficient
Voltage
Coefficient
R-Range
[ppm/°C]
R-Range
VCR
1GΩ to 9GΩ
200
10GΩ to
19GΩ
0.002%/V
10GΩ to
300GΩ
300
20GΩ to
100GΩ
0.007%/V
R-Range
Resistance
Tolerance [%] Std.
1GΩ
+/-1%(F)
2GΩ ~10GΩ
+/-2%(G)
400GΩ to
1TΩ
1000
200GΩ to
1TΩ
0.01%/V
20GΩ ~
100GΩ
+/-5%(J)
1.1TΩ to
10TΩ
1500
10TΩ
0.05%/V
200GΩ~1TΩ
+/-10%(K)
Custom
+/-0.5
+/-1%
+/-2%
+/-5%
10TΩ
+/-20%
+/-10%
ΔR taken at 25ºC
and 70ºC
Measured at
100vdc and
1000vdc
Measured at
1000vdc
Standard
cf.: The described specifications & dimensions subject to change without notice.
 
#604 Hyundai I-Valley ,14-1 Dang-dong , Kunpo City, Kyunggido, Korea
Willow Technologies Ltd. ShawlavnodisceC+o8u2r-t3, 1-N4e29w-c6h3a79peflaRx o+a8d2-,31L-4in2g9f-i9e1ld2,7 Surrey, RH7 6BL, United Kingdom.
+ 44 (0) 1342 835234 + 44 ^r(^e0^s)^[e-mail]@^ww^.3Ril^Llo^aw^b.c.c^oo^m.uk http://www.willow.co.uk
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