CMB 0207

Vishay Beyschlag

High Pulse Load MELF Resistor

www.vishay.com

For technical questions, contact: ff3bresistors@vishay.com

Document Number: 28755

82

Revision: 31-Oct-06

DESCRIPTION

Production of the CMB 0207 speciality MELF resistor 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 body

pressed on the coated rods. Products with a resistance of

15

Ω or lower are made without trimming, whereas a special

laser is used to achieve a target value of 16

Ω or above

by smoothly cutting a helical groove in the resistive layer

without damaging the ceramics. The resistor elements are

covered by a protective coating designed for electrical,

mechanical and climatic protection. The terminations receive

a final pure tin on nickel plating. Four color code rings

designate the resistance value and tolerance in accordance

The result of the determined production is verified by an

extensive testing procedure performed on 100 % of the

individual resistors. Only accepted products are laid directly

ASSEMBLY

The resistors are suitable for processing on automatic

SMD assembly systems. They are suitable for automatic

soldering using wave, reflow or vapour phase as shown in

extended storage in excess of 10 years. The encapsulation

is resistant to all cleaning solvents commonly used in the

electronics industry, including alcohols, esters and aqueous

solutions. The resistors are completely lead (Pb)-free, the

pure tin plating provides compatibility with lead (Pb)-free

soldering processes. The immunity of the plating against tin

whisker growth has been proven under extensive testing.

substances. This includes full compliance with the following

directives:

• 2000/53/EC End of Vehicle life Directive (ELV) and

Annex II (ELV II)

• 2002/95/EC Restriction of the use of Hazardous

Substances Directive (RoHS)

• 2002/96/EC Waste Electrical and Electronic Equipment

Directive (WEEE)

Notes

1. Global Automotive Declarable Substance List, see www.gadsl.org

2. CEFIC (European Chemical Industry Council), EECA (European

Electronic

Component

Manufacturers

Association),

EICTA

(European trade organisation representing the information and

communications technology and consumer electronics), see

www.eicta.org -> issues -> environment policy -> chemicals ->

chemicals for electronics

APPROVALS

Where applicable the resistors are tested in accordance with

EN 140401-803 which refers to EN 60115-1, EN 140400 and

the variety of environmental test procedures of the

Vishay

BEYSCHLAG

has

achieved

"Approval

of

Manufacturer" in accordance with IEC QC 001002-3,

clause 2. The release certificate for “Technology Approval

Schedule” in accordance with CECC 240001 based on

IEC QC 001002-3, clause 6 is granted for the Vishay

BEYSCHLAG manufacturing process.

Note

3. The quoted IEC standards are also released as EN standards with

the same number and identical contents.