VISHAY CMB 0207 Technical data
High Pulse Load MELF Resistor
REG.-Nr. B583
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.
CMB 0207
Vishay Beyschlag
FEATURES
• Approved to the safety requirements of
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
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
Rated dissipation, P
Operating voltage, U
Film temperature
Max. resistance change at P
|ΔR/R| after: 1000 h
Permissible voltage against ambient (insulation):
Failure rate ≤ 1 × 10
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.
Document Number: 28755 For technical questions, contact: ff3bresistors@vishay.com
Revision: 31-Oct-06 79
1)
70
AC/DC 500 V
max
3)
for resistance range,
70
8000 h ≤ 1 % ≤ 2 %
225 000 h t.b.f -
1 minute; U
continuous 75 V
ins
0.4 W
125 °C 155 °C
2.2 Ω to 10 kΩ
≤ 0.5 % ≤ 1 %
750 V
-9
/h
1.0 W
www.vishay.com
CMB 0207
Vishay Beyschlag
High Pulse Load MELF Resistor
12NC INFORMATION
• The resistors have a 12-digit numeric code starting with
2312
• The subsequent 4 digits indicate the resistor type,
specification and packaging; see the 12NC table
• The remaining 4 digits indicate the resistance value:
– The first 3 digits indicate the resistance value
– The last digit indicates the resistance decade in
accordance with the 12NC Indicating Resistance
Decade table
12NC - resistor type and packaging
DESCRIPTION
TYPE TOL. B2 2000 UNITS B7 7000 UNITS
CMB 0207
± 5 % ... 199 3.... ... 189 3....
± 2 % ... 199 2.... ... 189 2....
Last Digit of 12NC Indicating Resistance Decade
RESISTANCE DECADE LAST DIGIT
1 Ω to 9.99 Ω 8
10 Ω to 99.9 Ω 9
100 Ω to 999 Ω 1
1 kΩ to 9.99 kΩ 2
10 kΩ to 99.9 kΩ 3
100 kΩ to 999 kΩ 4
1 MΩ to 9.99 MΩ 5
12NC Example
The 12NC of a CMB 0207 resistor, value 47 kΩ with ± 2 %
tolerance, supplied in blister tape of 2000 units per reel is:
2312 199 24703.
ORDERING CODE 2312 ... .....
BLISTER TAPE ON REEL
PART NUMBER AND PRODUCT DESCRIPTION
PART NUMBER2): CMB02070X4701GB200
1)
CMB02070X 4701GB200
MODEL/SIZE SPECIAL CHARACTER TCR VALUE TOLERANCE
CMB0207 0 = neutral X = no indication 3 digit value
1 digit multiplier
Multiplier
-2
8 = *10
-1
9 = *10
0
0 = *10
1
1 = *10
2
2 = *10
3
3 = *10
4
4 = *10
PRODUCT DESCRIPTION4): CMB 0207 2 % B2 4K7
CMB 0207 2 % B2 4K7
MODEL SIZE TOLERANCE PACKAGING
CMB 0207 ± 2 %
Notes
1. Products can be ordered using either the PRODUCT DESCRIPTION or the 12NC.
2. The PART NUMBER is shown to facilitate the introduction of the unified part numbering system. Currently, this PART NUMBER is applicable
in the Americas and in Asia/Pacific only.
3. Please refer to table PACKAGING, see below.
4. For CMB 0207 the temperature coefficient is not identified in the PRODUCT DESCRIPTION.
± 5 %
G = ± 2 %
J = ± 5 %
B2
B7
PAC K A GI N G3)SPECIAL
B2
B7
3)
RESISTANCE VALUE
100R = 100 Ω
up to 2 digits
00
4K7 = 4.7 kΩ
= standard
www.vishay.com For technical questions, contact: ff3bresistors@vishay.com Document Number: 28755
80 Revision: 31-Oct-06
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