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VRW25 Fiches technique(PDF) 2 Page - Welwyn Components Limited

No de pièce VRW25
Description  High Voltage Thick Film Resistors
Download  3 Pages
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Fabricant  WELWYN [Welwyn Components Limited]
Site Internet  http://www.welwyn-tt.com/
Logo WELWYN - Welwyn Components Limited

VRW25 Fiches technique(HTML) 2 Page - Welwyn Components Limited

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High Voltage
Thick Film Resistors
SQP 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
Issue C · 07.06
Welwyn Components
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Load at rated voltage (1000hrs at 70˚C)
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Overload (10 x 5s at 6.25 x Pr not exceeding 2 x LEV)
5
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%
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Damp heat steady state (56 days, 40˚C,
90% RH)
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Climatic sequence
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Climatic category
55/155/56
Temperature rapid change
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Resistance to solder heat
5
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%
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Vibration
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%
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71
Maximum peak voltage in accordance with “IEC 60065 chapter 14.1”
50 discharges from a 1nF capacitor charged to V max. 12 discharges/minute.
Application Notes
1. Due to operating temperature limits imposed by some PCB materials, derating may be necessary. An
estimate of the temperature rise to be expected at the center of the body can be calculated using the
thermal impedance figures given under Electrical Data.
2. VRW resistors can be supplied with radial, goalpost or lancet pre-formed leads. The VRW37 is also
available in an SMD format with Z formed leads and packed in blister tape. Consult Factory for details.
Packaging
Our standard packaging for VRW is taped and
boxed. The critical dimensions are shown in
Figure 1. The component wires will not
protrude beyond the outside edge of the
tapes. Alternative packaging is available by
request. Pre-formed resistors are supplied
loose packed in plastic bags or boxes.
Performance Data
Pulse Performace
Figure 1
6
mm
2
f
1
f
6
mm
5
mm
Body location f1-f2
1.4mm
1
10
100
0.01
0.1
1
10
100
Megaohms
VRW25
VRW37
VRW Series
Pulse Performance
Vmax (kV)
52mm
Overload (10 x 5s on, 45s off at 6.25 x Pr not exceeding 2 x LEV)
2
Issue B · 01.07


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Numéro de composants électroniques

No de pièceDescriptionHtml ViewFabricant
HV31 High Voltage Thick film Resistors 1  2  Welwyn Components Limited
T43D High Voltage Precision Thick Film Resistors 1  2  Welwyn Components Limited
HVL High Voltage Low Inductance Thick film Resistors 1  2  Welwyn Components Limited
KTR18_1 Endured high voltage fixed thick film chip resistors 1  2  3  4  5  More Rohm
F43D High Voltage Thick Film Resistors 1  2  Welwyn Components Limited
GC55 High Value Thick Film Resistors 1  2  Welwyn Components Limited
MKP1V120_06 Sidac High Voltage Bidirectional Triggers 0.9 AMPERES RMS 120 240 VOLTS 1  2  3  4  5  ON Semiconductor
KTR10_1 Endured high voltage fixed thick film chip resistor 1  2  3  4  5  More Rohm
MH25 High Voltage Metal Film Resistors 1  2  Welwyn Components Limited
BHV High Voltage/High Value Thick Film SIP Epoxy Coated Resistors 1  2  3  Bi technologies

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