CMA0204 Vishay Intertechnology, CMA0204 Datasheet

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CMA0204

Manufacturer Part Number
CMA0204
Description
High Pulse Load MELF Resistor
Manufacturer
Vishay Intertechnology
Datasheet

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Document Number: 28717
Revision: 27-Feb-04
Note
1. The power dissipation on the resistor generates a temperature rise against the local ambient, depending on the heatflow support of the
CMA 0204 speciality MELF resistors with advanced pulse
load capability are the perfect choice for the protection of
circuitry with signal or mains input lines from surge pulses.
The resistors are also suitable for circuits exposed to high
levels of electromagnetic interference or electrostatic
discharge. The applications are in all fields of automotive,
telecommunication, industrial and medical equipment.
TECHNICAL SPECIFICATIONS
DESCRIPTION
Metric CECC size
Resistance range
Resistance tolerance
Temperature coefficient
Operation mode
Climatic category (LCT/UCT/days)
Rated dissipation, P
Operating voltage, U
Film temperature
Max. resistance change at P
for resistance range,
∆ R / R max., after:
Specified lifetime
Permissible voltage against ambient (insulation):
Failure rate
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.
70
max
(1)
AC/DC
1 minute; U
70
continuous
1000 h
8000 h
High Pulse Load MELF Resistor
ins
For technical questions contact: ff3bresistors@vishay.com
FEATURES
• Special carbon film technology
• Up to 4 kV single pulse capability
• Up to 70 W continuous pulse load
• Green product, supports lead-free soldering.
APPLICATIONS
• Automotive
• Telecommunication
• Industrial
• Medical equipment
METRIC SIZES
DIN:
CECC:
55/125/56
standard
0.25 W
125 ° C
± 1 %
± 2 %
10 Ω to 100 k Ω
10 Ω to 100 k Ω
see T.C. graph
≤ 1 × 10
RC 3715M
CMA 0204
8 000 h
± 2 %
200 V
300 V
75 V
-9
Vishay Beyschlag
/h
RC 3715M
CMA 0204
55/155/56
155 ° C
power
0.4 W
± 2 %
± 4 %
0204
www.vishay.com
1

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CMA0204 Summary of contents

Page 1

High Pulse Load MELF Resistor CMA 0204 speciality MELF resistors with advanced pulse load capability are the perfect choice for the protection of circuitry with signal or mains input lines from surge pulses. The resistors are also suitable for circuits ...

Page 2

CMA 0204 Vishay Beyschlag ORDERING INFORMATION - type description and ordering code C M FILM TYPE PRODUCT CODE SIZE CODE C = Carbon M = MELF, cylindrical Note 1. For CMA 0204 the temperature coefficient is not identified in the ...

Page 3

DESCRIPTION Production of the CMA 0204 speciality MELF resistors with advanced pulse load capability is strictly controlled and follows an extensive set of instructions established for reproducibility. A homogeneous and dense carbon film is deposited on a high grade ceramic ...

Page 4

CMA 0204 Vishay Beyschlag FUNCTIONAL PERFORMANCE 1 W 0.5 0 -50 Derating - Standard Operation 1 W 0.5 0 -50 Derating - Power Operation 100 0.1 10 µs Maximum pulse load, single pulse; for permissible resistance change ...

Page 5

0.1 10 µs Maximum pulse load, continuous pulses; for permissible resistance change equivalent to 8000 h operation. Continuous Pulses 1 kV 100 V 10 µs Maximum pulse voltage, single and continuous pulses; for permissible resistance change ...

Page 6

CMA 0204 Vishay Beyschlag 1 kV 100 Ω Pulse load rating in accordance with IEC 60115-1, 4.27; 10 µs / 700 µs; 10 pulses at 1minute intervals; for 10/700 Pulse -100 ppm/K -200 -300 -400 -500 ...

Page 7

CMA 0204 Vishay Beyschlag TESTS AND REQUIREMENTS Essentially all tests are carried out in accordance with the following specifications: EN 60115-1, generic specification EN 140400, sectional specification EN 140401-803, detail specification The Test Procedures and Requirements table contains the applicable ...

Page 8

CMA 0204 Vishay Beyschlag TEST PROCEDURES AND REQUIREMENTS - continued EN IEC 60068-2 60115-1 TEST CLAUSE METHOD short time overload; standard operation mode 4.13 - short time overload; power operation mode 4.29 45 (XA) component solvent resistance 4.30 45 (XA) ...

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