CMA0204_10 Datasheet, PDF (9/10 Pages) Vishay Siliconix – High Pulse Load MELF Resistors

CMA 0204
Vishay Beyschlag
High Pulse Load MELF Resistors
TEST PROCEDURES AND REQUIREMENTS
EN
60 115-1
CLAUSE
IEC
60068-2 ⁽¹⁾
TEST
METHOD
TEST
PROCEDURE
Stability for product types:
CMA 0204
4.29
45 (XA) Component solvent resistance Isopropyl alcohol; 50 °C; method 2
4.30
45 (XA)
Solvent resistance of marking
Isopropyl alcohol; 50 °C; method 1,
toothbrush
4.17.2
58 (Td)
Solderability
Solder bath method;
SnPb40;
non-activated flux;
(215 ± 3) °C; (3 ± 0.3) s
Solder bath method;
SnAg3Cu0.5 or
SnAg3.5; non-activated flux;
(235 ± 3) °C; (2 ± 0.2) s
4.18.2
58 (Td)
Resistance to soldering heat Solder bath method ; (260 ± 5) °C; (10 ± 1) s
4.32
21 (Ue₃)
4.7
-
4.35
-
Shear (adhesion)
Voltage proof
Flammability
45 N
U_RMS = U_ins; 60 s
IEC 60 695-11-5 ⁽¹⁾, needle flame test;
10 s
REQUIREMENTS
PERMISSIBLE CHANGE (ΔR)
10 Ω to 100 kΩ
No visible damage
Marking legible;
no visible damage
Good tinning (≥ 95 % covered);
no visible damage
Good tinning (≥ 95 % covered);
no visible damage
± (0.5 % R + 0.1 Ω)
No visible damage
No flashover or breakdown
No burning after 30 s
Note
(1) _{The quoted IEC standards are also released as EN standards with the same number and identical contents.}
HISTORICAL 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.
Last Digit of 12NC Indicating Resistance Decade
RESISTANCE DECADE
10 Ω to 99.9 Ω
100 Ω to 999 Ω
1 kΩ to 9.99 kΩ
10 kΩ to 99.9 kΩ
100 kΩ to 999 kΩ
LAST DIGIT
9
1
2
3
4
Historical 12NC Example
The 12NC of a CMA 0204 resistor, value 47 kΩ with ± 2 %
tolerance, supplied in blister tape of 3000 units per reel is:
2312 159 24703.
HISTORICAL 12NC - Resistor type and packaging
DESCRIPTION
ORDERING CODE 2312 ... .....
BLISTER TAPE ON REEL
TYPE
TOL.
BL
3000 UNITS
B0
10 000 UNITS
CMA 0204
±2%
159 2....
149 2....
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Document Number: 28717
Revision: 01-Mar-10