MMU 0102, MMA 0204, MMB 0207 - Precision
Vishay Beyschlag
Precision MELF Resistors
FEATURES
Approved according to EN 140401-803
Advanced thin film technology
Superior stability: Class 0.05
Wide precision range: 10 to 1 M
Force fitted steel caps, tin plated on nickel barrier
Pure Sn termination on Ni barrier layer
Compatible with lead (Pb)-free and lead containing
soldering processes
Lead (Pb)-free and RoHS compliant
APPLICATIONS
Test and measuring equipment
MMU 0102, MMA 0204 and MMB 0207 precision thin film
Industrial and medical electronics
melf resistors combine the proven reliability of the
professional products with an advanced level of precision
METRIC SIZE
and stability. Therefore they are perfectly suited for
DIN: 0102 0204 0207
applications in the fields of test and measuring equipment
CECC: RC 2211M RC 3715M RC 6123M
along with industrial and medical electronics.
TECHNICAL SPECIFICATIONS
DESCRIPTION MMU 0102 MMA 0204 MMB 0207
Metric CECC size RC 2211 M RC 3715 M RC 6123 M
Resistance range 22 to 332 k 10 to 511 k 15 to 1 M
Resistance tolerance 0.5 %; 0.25 %; 0.1 % 0.25 %; 0.1 %
Temperature coefficient 25 ppm/K; 15 ppm/K
Operation mode precision standard precision standard precision standard
Climatic category
10/85/56 55/125/56 10/85/56 55/125/56 10/85/56 55/125/56
(LCT/UCT/days)
1)
Rated dissipation, P 0.06 W 0.2 W 0.07 W 0.25 W 0.11 W 0.4 W
70
Operating voltage, U AC/DC 150 V 200 V 300 V
max
Film temperature 85 C 125 C85 C 125 C85 C 125 C
Max. resistance change at P
70
for resistance range, 22 to 332 k 10 to 511 k 15 to 1 M
|R/R| max., after:
1000 h 0.05 % 0.1 % 0.05 % 0.1 % 0.05 % 0.1 %
8000 h 0.1 % 0.2 % 0.1 % 0.2 % 0.1 % 0.2 %
225 000 h 0.3 % 0.6 % 0.3 % 0.6 % 0.3 % 0.6 %
Permissible voltage against
ambient (insulation):
1 minute, U 200 V 300 V 500 V
ins
continuous 75 V 75 V 75 V
-9 -9 -9
Failure rate 2.0 10 /h 0.7 10 /h 0.7 10 /h
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.
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.
www.vishay.com For technical questions contact: ff3bresistors@vishay.com Document Number: 28714
34 Revision: 18-Jul-06MMU 0102, MMA 0204, MMB 0207 - Precision
Precision MELF Resistors Vishay Beyschlag
12NC INFORMATION
The resistors have a 12-digit numeric code starting with Last Digit of 12NC Indicating Resistance Decade
2312.
RESISTANCE DECADE LAST DIGIT
10 to 99.9 9
The subsequent 4digits indicate the resistor type,
100 to 999 1
specification and packaging; see the 12NC table.
1 k to 9.99 k 2
The remaining 4 digits indicate the resistance value:
10 k to 99.9 k 3
100 k to 999 k 4
- The first 3 digits indicate the resistance value.
1 M to 9.99 M 5
- The last digit indicates the resistance decade in
accordance with the 12NC Indicating Resistance Decade 12NC Example
table.
The 12NC of a MMA 0204 resistor, value 47 k and TC 25
with 0.1 % tolerance, supplied in blister tape of 3000 units
per reel is: 2312 156 74703.
12NC - resistor type and packaging
ORDERING CODE 2312 ... .....
DESCRIPTION
BLISTER TAPE ON REEL BULK CASE
B1 BL B0 M8
TYPE TCR TOL.
1000 units 3000 units 10 000 units 8000 units
0.25 % 171 6.... 166 6.... 176 6.... 061 6....
25 ppm/K
0.1 % 171 7.... 166 7.... 176 7.... 061 7....
MMU 0102 0.5 % 172 5.... 167 5.... 177 5.... 062 5....
15 ppm/K 0.25 % 172 6.... 167 6.... 177 6.... 062 6....
0.1 % 172 7.... 167 7.... 177 7.... 062 7....
B1 BL B0 M3
TYPE TCR TOL.
1000 units 3000 units 10 000 units 3000 units
0.25 % 141 6.... 156 6.... 146 6.... 041 6....
25 ppm/K
0.1 % 141 7.... 156 7.... 146 7.... 041 7....
MMA 0204 0.5 % 142 5.... 157 5.... 147 5.... 042 5....
15 ppm/K 0.25 % 142 6.... 157 6.... 147 6.... 042 6....
0.1 % 142 7.... 157 7.... 147 7.... 042 7....
B1 B2 B7
TYPE TCR TOL.
1000 units 2000 units 7000 units
0.25 % 181 6.... 196 6.... 186 6....
25 ppm/K
MMB 0207 0.1 % 181 7.... 196 7.... 186 7....
15 ppm/K 0.1 % 182 7.... 197 7.... 187 7....
Resistance ranges printed in bold are preferred TCR/tolerance combinations with optimized availability.
Document Number: 28714 For technical questions contact: ff3bresistors@vishay.com www.vishay.com
Revision: 18-Jul-06 35