CMA 0204 Vishay Beyschlag High Pulse Load MELF Resistor FEATURES Special carbon film technology Up to 4 kV single pulse capability Up to 70 W continuous pulse load ESD capability: 6 kV, Human Body Model Compatible with lead (Pb)-free and lead containing soldering processes Lead (Pb)-free and RoHS compliant APPLICATIONS Automotive Telecommunication CMA 0204 speciality MELF resistors with advanced pulse Industrial load capability are the perfect choice for the protection of circuitry with signal or mains input lines from surge pulses. Medical equipment The resistors are also suitable for circuits exposed to high levels of electromagnetic interference or electrostatic METRIC SIZES discharge. The applications are in all fields of automotive, DIN: 0204 telecommunication, industrial and medical equipment. CECC: RC 3715M TECHNICAL SPECIFICATIONS DESCRIPTION CMA 0204 Metric CECC size RC 3715M Resistance range 10 to 100 k Resistance tolerance 2 % Temperature coefficient see TCR graph Operation mode standard power Climatic category (LCT/UCT/days) 55/125/56 55/155/56 1) Rated dissipation, P 0.25 W 0.4 W 70 Operating voltage, U AC/DC 200 V max 2) Film temperature 125 C 155 C Max. resistance change at P for resistance range, 10 to 100 k 70 R/R after: 1000 h 1 % 2 % 8000h 2 % 4 % Permissible voltage against ambient (insulation): 1 minute U 300 V ins continuous 75 V -9 Failure rate 1 10 /h Note: These resistors do not feature a limited lifetime when operated within the permissible limits. However, resistance value drift increasing over operating time may result in exceeding a limit acceptable to the specific application, thereby establishing a functional lifetime. 1) The power dissipation on the resistor generates a temperature rise against the local ambient, depending on the heatflow support of the printed-circuit board (thermal resistance). The rated dissipation applies only if the permitted film temperature is not exceeded. Furthermore, a high level of ambient temperature or of power dissipation may raise the temperature of the solder joint, hence special solder alloys or board materials may be required to maintain the reliability of the assembly. 2) Film temperatures above the specified range may be permissible, e.g. 175 C. Please contact the factory for details. www.vishay.com For technical questions contact: ff3bresistors vishay.com Document Number: 28717 58 Revision: 18-Jul-06CMA 0204 High Pulse Load MELF Resistor Vishay Beyschlag Last Digit of 12NC Indicating Resistance Decade 12NC INFORMATION RESISTANCE DECADE LAST DIGIT The resistors have a 12-digit numeric code starting with 10 to 99.9 9 2312. 100 to 999 1 The subsequent 4digits indicate the resistor type, 1 k to 9.99 k 2 specification and packaging see the 12NC table. 10 k to 99.9 k 3 The remaining 4 digits indicate the resistance value: 100 k to 999 k 4 The first 3 digits indicate the resistance value. 12NC Example The last digit indicates the resistance decade in The 12NC of a CMA 0204 resistor, value 47 k with 2 % accordance with the 12NC Indicating Resistance tolerance, supplied in blister tape of 3000 units per reel is: Decade table. 2312 159 24703. 12NC - resistor type and packaging ORDERING CODE 2312 ...... DESCRIPTION BLISTER TAPE ON REEL BL B0 TYPE TOL. CMA 0204 2 % 159 2.... 149 2.... 1) PART NUMBER AND PRODUCT DESCRIPTION 2) PART NUMBER : CMA02040X4701GB300 CMA02 040X4701 GB300 3) MODEL/SIZE SPECIAL CHARACTER TC VALUE TOLERANCE PACKAGING SPECIAL CMA0204 0 = neutral X = no indication 3 digit value G = 2 % B3 up to 2 digits 1 digit multiplier B0 00 = standard Multiplier -1 9 = *10 0 0 = *10 1 1 = *10 2 2 = *10 3 3 = *10 4) PRODUCT DESCRIPTION : CMA 0204 2 % BL 4K7 CMA 0204 2 % BL 4K7 3) MODEL SIZE TOLERANCE PACKAGING RESISTANCE VALUE CMA 0204 2 % BL 100R = 100 B0 4K7 = 4.7 k Notes 1. Products can be ordered using either the PRODUCT DESCRIPTION or the 12NC. 2. The PART NUMBER is shown to facilitate the introduction of the unified part numbering system. Currently, this PART NUMBER is applicable in the Americas and in Asia/Pacific only. 3. Please refer to table PACKAGING, see below. 4. For CMA0204 the temperature coefficient is not identified in the PRODUCT DESCRIPTION. Document Number: 28717 For technical questions contact: ff3bresistors vishay.com www.vishay.com Revision: 18-Jul-06 59