VR37 Vishay BCcomponents High Ohmic (up to 33 M)/ High Voltage (up to 3.5 kV) Resistors FEATURES Lead (Pb)-free solder contacts These resistors meet the safety requirements of: UL1676 (510 k to 11 M) File No: E171160 REG.-Nr. 40002857 IEC 60065 EN60065 VDE 0860 (Germany) CQC (China) High pulse loading capability (10 kV) Small size (0309) Pure tin plating provides compatibility with lead (Pb)-free and lead containing soldering processes Compatible with Restriction of the use of Hazardous A metal glazed film is deposited on a high grade ceramic Substances (RoHS) directive 2002/95/EC (issue 2004) body. After a helical groove has been cut in the resistive layer, tinned electrolytic copper wires are welded to the APPLICATIONS end-caps. The resistors are coated with a light blue lacquer Where high resistance, high stability and high reliability at which provides electrical, mechanical, and climatic high voltage are required protection. The encapsulation is resistant to all cleaning solvents in Safety component in combination with high voltage accordance with MIL-STD202E, method215 and White goods IEC 60068-2-45. High humidity environment Power supplies TECHNICAL SPECIFICATIONS DESCRIPTION VALUE (1) Resistance range 100 k to 33 M 1 %: E24/E96 series Resistance tolerance and series 5 %: E24 series Maximum dissipation at T =70 C0.5W amb Thermal resistance, R 120 K/W th -6 Temperature coefficient 200 x 10 /K Maximum permissible voltage: DC 3500 V RMS 2500 V Dielectric withstanding voltage of the insulation for 1 minute 700 V Basic specifications IEC 60115-1B Safety requirements UL1676 (510 k to 11 M) EN60065 VDE 0860 CQC Climatic category (IEC 60068) 55/155/56 Stability after: load (1000 hours) R max.: (1.5 % R+0.1 ) accelerated damp heat test (6 days) R max.: (1.5 % R+0.1 ) long term damp heat test (56 days) R max.: (1.5 % R+0.1 ) Noise max. 2.5 V/V Notes: (1) Ohmic values (other than resistance range) are available upon request. www.vishay.com For technical questions, contact: ff3dresistors vishay.com Document Number: 28733 182 Revision: 20-Sep-07VR37 High Ohmic (up to 33 M)/ Vishay BCcomponents High Voltage (up to 3.5 kV) Resistors 12NC INFORMATION The resistors have a 12-digit numeric code starting with Last Digit of 12NC Indicating Resistance Decade 2322 242. RESISTANCE DECADE LAST DIGIT The subsequent: 100 to 976 k 4 first digit for 1 % tolerance products (E24 and E96 series) 1to9.76M 5 or 2digits for 5 % (E24series) indicate the resistor type 10 M 6 and packaging The remaining digits indicate the resistance value: 12NC Example The first 3 digits for 1 % or 2 digits for 5 % tolerance The 12NC for a VR37, resistor value 7.5 M, 5 % tolerance, products indicate the resistance value supplied on a bandolier of 1000units in ammopack, is: The last digit indicates the resistance decade 2322 242 13755. 12NC - resistor type and packaging ORDERING CODE 2322 242 ..... TAPE TOL. BANDOLIER IN AMMOPACK BANDOLIER ON REEL TYPE WIDTH (%) 1000 5000 (mm) units units 1 8.... 6.... VR37 52 5 13... 23... PART NUMBER PART NUMBER: VR37000001503JA100 VR 3 7000001503J A10 0 (1) PACKAGING MODEL/SIZE SPECIAL CHARACTER TCR/MATERIAL VALUE TOLERANCE SPECIAL VR37000 0 = neutral 0 = standard 3 digit value F = 1 % A1 The 2 digits J = 5 % Z = value overflow 1 digit multiplier R5 are used for (Special) Multiplier: all special 3 parts. 3 = *10 4 00 = standard 4 = *10 5 5 = *10 PRODUCT DESCRIPTION: VR37 5 % A1 150K VR37 5 % A1 150K (1) MODEL/SIZE TOLERANCE PACKAGING RESISTANCE VALUE VR37 1 % A1 150K = 150 k 5 % R5 8M2 = 8.2 M Note: (1) Please refer to table PACKAGING. The PART NUMBER is shown to facilitate the introduction of a unified part numbering system for ordering products. PACKAGING CODE PIECES DESCRIPTION MODEL/SIZE A1 1000 Bandolier in ammopack straight leads 52 mm VR37 R5 5000 Bandolier on reel straight leads 52 mm Document Number: 28733 For technical questions, contact: ff3dresistors vishay.com www.vishay.com Revision: 20-Sep-07 183