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VR37 Datasheet(PDF) 2 Page - Vishay Siliconix |
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VR37 Datasheet(HTML) 2 Page - Vishay Siliconix |
2 / 6 page www.vishay.com For technical questions contact: ff3dresistors@vishay.com Document Number: 28733 2 Revision: 24-Feb-04 VR37 Vishay BCcomponents High Ohmic/High Voltage Resistors ORDERING INFORMATION Ordering Code (12NC) • The resistors have a 12-digit ordering code starting with 2322 242. • The subsequent: first digit for 1 % tolerance products (E24 and E96 series) or 2 digits for 5 % (E24 series) indicate the resistor type and packaging. • The remaining digits indicate the resistance value: – The first 3 digits for 1 % or 2 digits for 5 % tolerance products indicate the resistance value. – The last digit indicates the resistance decade. Last Digit of 12NC Indicating Resistance Decade Ordering Example The ordering code for a VR37, resistor value 7.5 MΩ, 5 % tolerance, supplied on a bandolier of 1000 units in ammopack, is: 2322 242 13755. RESISTANCE DECADE LAST DIGIT 100 to 976 kΩ 4 1 to 9.76 MΩ 5 ≥10 MΩ 6 DIMENSIONS ∅D L1 L2 ∅d Outline. DIMENSIONS - resistor type and relevant physical dimensions TYPE ∅ ∅ ∅ ∅D MAX. L1 MAX. L2 MAX. ∅ ∅ ∅ ∅d VR37 4.0 9.0 10.0 0.7 ± 0.03 MARKING The nominal resistance and tolerance are marked on the resistor using four or five coloured bands in accordance with IEC publication 60062 “Colour codes for fixed resistors”. Yellow and grey are used instead of gold and silver because metal particles in the lacquer could affect high-voltage properties. OUTLINES The length of the body (L1) is measured by inserting the leads into holes of two identical gauge plates and moving these plates parallel to each other until the resistor body is clamped without deformation (“IEC publication 60294”). MASS PER 100 UNITS TYPE MASS (g) VR37 53 FUNCTIONAL PERFORMANCE PRODUCT CHARACTERIZATION Standard values of nominal resistance are taken from the E96/E24/E12 series for resistors with a tolerance of ± 1 % or 5 %. The values of the E96/E24 series are in accordance with “IEC publication 60063”. Note 1. The maximum voltage that may be continuously applied to the resistor element, see “IEC publication 60115-1”. The maximum permissible hot-spot temperature is 155 °C. LIMITING VALUES TYPE LIMITING VOLTAGE(1) (V) LIMITING POWER (W) DC RMS VR37 3500 2500 0.5 |
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