CMB 0207

Vishay Beyschlag

Document Number: 28755

For technical questions, contact: ff3bresistors@vishay.com

www.vishay.com

Revision: 31-Oct-06

79

High Pulse Load MELF Resistor

CMB 0207 speciality MELF resistors with advanced pulse

load capability are the perfect choice for the protection of

circuitry with signal and mains input lines from surge pulses.

The resistors are also suitable for circuits exposed to high

levels of electromagnetic interference or electro-static

discharge. The applications are in all fields of automotive,

telecommunication, industrial and medical equipment.

FEATURES

IEC 60065, 14.1.a* (= VDE 0860, 14.1.a)

VDE-REG.-Nr. B583

• Special carbon film technology

• Up to 10 kV or 17 kW single pulse capability

• Up to tbf. continuous pulse load capability

• ESD capability: 16 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

Notes

• 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. Specified power rating requires dedicated heat-sink pads.

3. Film temperatures above the specified range may be permissible, e.g. 175 °C. Please contact the factory for details.

REG.-Nr. B583

METRIC SIZE

DIN:

0207

CECC:

RC 6123M

TECHNICAL SPECIFICATIONS

DESCRIPTION

CMB 0207

CECC size

RC 6123M

Resistance range

2.2

Ω to 1.5 MΩ

Resistance tolerance

± 5 %; ± 2 %

Temperature coefficient

see TCR graph

Operation mode

standard

power

Climatic category (LCT/UCT/days)

55/125/56

55/155/56

0.4 W

1.0 W

500 V

125

°C

155

°C

2.2

Ω to 10 kΩ

|

ΔR/R| after:

1000 h

≤ 0.5 %

≤ 1 %

8000 h

≤ 1 %

≤ 2 %

225 000 h

t.b.f

-

Permissible voltage against ambient (insulation):

750 V

continuous

75 V

Failure rate