High Pulse Load MELF Resistor

CMA 0204

Vishay Beyschlag

www.vishay.com

For technical questions contact: ff3bresistors@vishay.com

Document Number: 28717

58

Revision: 18-Jul-06

FEATURES

• 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

• Industrial

• Medical equipment

METRIC SIZES

DIN:

0204

CECC:

RC 3715M

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.

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.

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.

TECHNICAL SPECIFICATIONS

DESCRIPTION

CMA 0204

Metric CECC size

RC 3715M

Resistance range

10

Ω to 100 kΩ

Resistance tolerance

± 2 %

Temperature coefficient

see TCR graph

Operation mode

standard

power

Climatic category (LCT/UCT/days)

55/125/56

55/155/56

0.25 W

0.4 W

200 V

125

°C

155

°C

10

Ω to 100 kΩ

|

ΔR/R| after:

1000 h

≤ 1 %

≤ 2 %

8000 h

≤ 2 %

≤ 4 %

Permissible voltage against ambient (insulation):

300 V

continuous

75 V

Failure rate