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CMB 0207

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Vishay Beyschlag

Revision: 11-Feb-16

Document Number: 28755

For technical questions, contact: melf@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

High Pulse Load Carbon Film MELF Resistors



CMB 0207 carbon film 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

• Approved to the safety requirements of

IEC 60065, 14.2.a (= VDE 0860, 14.1.a)

VDE-REG.-Nr. B583

• AEC-Q200 qualified

• Special carbon film technology

• Up to 3 kW single pulse capability

• ESD capability: 16 kV, human body model

• Sulfur resistance verified according to

ASTM B 809

• Surge voltage capability up to 10 kV 1.2/50 μs pulse

• Material categorization: for definitions of compliance

please see www.vishay.com/doc?99912

APPLICATIONS

• Automotive

• Telecommunication

• Industrial

• Medical equipment

Note

(1)

Please refer to APPLICATION INFORMATION below.

APPLICATION INFORMATION

The power dissipation on the resistor generates a temperature rise against the local ambient, depending on the heat flow

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.

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. At the maximum permissible film temperature of 155 °C the useful lifetime is specified for 8000 h. The

designer may estimate the performance of the particular resistor application or set certain load and temperature limits in order

to maintain a desired stability.

REG.-Nr. B583

TECHNICAL SPECIFICATIONS

DESCRIPTION CMB 0207

DIN size 0207

Metric size code RC6123M

Resistance range 2.2  to 1.5 M

Resistance tolerance ± 5 %; ± 2 %; ± 1 %

Temperature coefficient see TCR graph

Rated dissipation, P

(1)

1.0 W

Operating voltage, U

max.

RMS

/DC 500 V

Permissible film temperature,



F max.

(1)

155 °C

Operating temperature range

(1)

-55 °C to 155 °C

Permissible voltage against ambient (insulation):

1 min; U

ins

750 V

Failure rate: FIT

observed

0.1 x 10

-9

Summary of content (11 pages)

PAGE 1
CMB 0207 www.vishay.com Vishay Beyschlag High Pulse Load Carbon Film MELF Resistors FEATURES REG.-Nr. B583 • Approved to the safety requirements of IEC 60065, 14.2.a (= VDE 0860, 14.1.a) VDE-REG.-Nr.
PAGE 2
CMB 0207 www.vishay.com Vishay Beyschlag MAXIMUM RESISTANCE CHANGE AT RATED DISSIPATION OPERATIONE MODE Rated dissipation, P70 STANDARD POWER 0.4 W 1.0 W (1) -55 °C to 125 °C -55 °C to 155 °C CMB 0207 Operating temperature range Permissible film temperature, F max. 125 °C 155 °C 2.2  to 10 k 2.2  to 10 k 1000 h  0.5 % 1% 8000 h 1% 2% TOLERANCE RESISTANCE E-SERIES ±5% 2.2  to 15  E24 ±2% 16  to 1.5 M E24 ±1% 16  to 1 M E24; E96 CMB 0207 Max.
PAGE 3
CMB 0207 www.vishay.com Vishay Beyschlag DESCRIPTION MATERIALS Production of the CMB 0207 specialty 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 (Al2O3). Nickel plated steel termination caps are firmly pressed on the coated rods.
PAGE 4
CMB 0207 www.vishay.com Vishay Beyschlag Power Dissipation P FUNCTIONAL PERFORMANCE 0.5 W 0 -50 0 50 70 100 150 C Ambient Temperature ϑamb Power Dissipation P Derating - Standard Operation 1 W 0.5 0 -50 0 50 Note (1) Specified power rating requires dedicated heat sink pads 70 100 C 150 Ambient Temperature ϑamb Derating - Power Operation Pulse Load Pmax. 10 000 W 1000 ≥ 1K0 100 < 1K0 10 1 0.
PAGE 5
CMB 0207 www.vishay.com Vishay Beyschlag Continuous Pulse Load Pmax. 10 000 W ≥ 1K0 < 1K0 1000 100 10 1 0.1 1 µs 10 µs 100 µs 1 ms 10 ms 100 ms 1s 10 s Pulse Duration ti Maximum pulse load, continuous pulses; applicable if P̅ ≤ P (ϑamb) and Û ≤ 4 kV; for permissible resistance change equivalent to 8000 h operation in power operation mode. Pulse Voltage U Continuous Pulse 10K V 1K 100 10 CMB 0207 1 10 100 1K 10K Pulse load rating in accordance with IEC 60115-1, 4.27; 1.
PAGE 6
CMB 0207 www.vishay.com Vishay Beyschlag Temperature Coefficient 0 CMB 0207 -100 -200 -300 -400 ppm/K -500 1 10 100 1K 10K 100K Ω 1M Resistance Value R Current Noise Voltage Ratio Temperature Coefficent (TCR) (typical curve) 1 µV/V 0.1 CMB 0207 0.
PAGE 7
CMB 0207 www.vishay.com Vishay Beyschlag TEST PROCEDURES AND REQUIREMENTS EN 60 115-1 CLAUSE IEC 60 068-2 (1) TEST METHOD TEST REQUIREMENTS PERMISSIBLE CHANGE (R) PROCEDURE Stability for product types: CMB 0207 2.2  to 1.5 M 4.5 - Resistance - ± 5 % R; ± 2 % R; ± 1 % R 4.8 - Temperature coefficient At (20 / -55 / 20) °C and (20 / 125 / 20) °C see Temperature Coefficient graph - Endurance at 70 °C: standard operation mode 4.25.1 - 4.25.3 4.24 4.
PAGE 8
CMB 0207 www.vishay.com Vishay Beyschlag TEST PROCEDURES AND REQUIREMENTS EN 60 115-1 CLAUSE IEC 60 068-2 (1) TEST METHOD TEST REQUIREMENTS PERMISSIBLE CHANGE (R) PROCEDURE Stability for product types: 2.2  to 1.5 M CMB 0207 4.40 4.17 4.18 4.29 - 58 (Td) 58 (Td) 45 (XA) IEC 61340-3-1 (1); 3 pos. + 3 neg. (equivalent to MIL-STD-883, method 3015) CMB 0207: 16 kV ± (0.5 % R + 0.05 ) Solder bath method; SnPb40; non-activated flux; (215 ±3) °C; (3 ± 0.
PAGE 9
CMB 0207 www.vishay.com Vishay Beyschlag DIMENSIONS L K L1 D D1 DIMENSIONS AND MASS TYPE / SIZE CMB 0207 L (mm) D (mm) L1 MIN. (mm) D1 (mm) K (mm) MASS (mg) 5.8 + 0/- 0.15 2.2 + 0/- 0.2 3.2 D + 0/- 0.2 1.1 ± 0.1 79 Note • Color code marking is applied according to IEC 60062 (1) in four bands (E24 series) or five bands (E96 series). Each color band appears as a single solid line, voids are permissible if at least 2/3 of the band is visible from each radial angle of view.
PAGE 10
CMB 0207 www.vishay.com Vishay Beyschlag HISTORICAL 12NC INFORMATION Last Digit of 12NC Indicating Resistance Decade • The resistors had a 12-digit numeric code starting with 2312. RESISTANCE DECADE LAST DIGIT • The subsequent 4 digits indicated the resistor type, specification and packaging; see the 12NC table. 1 to 9.99 8 10 to 99.9 9 • The remaining 4 digits indicated the resistance value: 100 to 999  1 1 k to 9.99 k 2 10 k to 99.9 k 3 100 k to 999 k 4 1 M to 9.
PAGE 11
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