CMA0204 Datasheet, PDF (8/8 Pages) Vishay Siliconix – High Pulse Load MELF Resistor

CMA 0204
Vishay Beyschlag
High Pulse Load MELF Resistor
TEST PROCEDURES AND REQUIREMENTS - continued
EN
60 115-1
CLAUSE
IEC 60068-2
TEST
METHOD
TEST
PROCEDURE
stability for product types:
CMA 0204
4.13
-
short time overload;
standard operation mode
short time overload;
power operation mode
U = 2.5 × P ₇₀ × R ≤ 2 × U_max; 5 s
U = 2.5 × P ₇₀ × R ≤ 2 × U_max; 5 s
4.29
45 (XA)
component solvent resistance isopropyl alcohol; 50 °C; method 2
REQUIREMENTS
PERMISSIBLE CHANGE (∆R/R)
10 Ω to 100 kΩ
± (0.25 % + 0.1 Ω)
± (0.25 % + 0.1 Ω)
no visible damage
4.30
4.17.2
45 (XA)
58 (Td)
solvent resistance of marking
solderability
isopropyl alcohol; 50 °C; method 1,
toothbrush
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
marking legible;
no visible damage
good tinning (≥ 95 % covered);
no visible damage
good tinning (≥ 95 % covered);
no visible damage
4.18.2 58 (Td)
resistance to soldering heat solder bath method ; (260 ± 5) °C; (10 ± 1) s
± (0.5 % + 0.1 Ω)
4.32
4.7
4.35
21 (Ue₃)
-
-
shear (adhesion)
voltage proof
flammability
45 N
U_rms = U_ins; 60 s
IEC 60 695-2-2, needle flame test; 10 s
no visible damage
no flashover or breakdown
no burning after 30 s
ORDERING INFORMATION
Components may be ordered by using either a simple clear
text ordering code, see “Type description and ordering code”
or Vishay BCcomponents’ unique 12NC.
Numeric Ordering Code (12NC)
• The resistors have a 12-digit ordering code starting with
2312.
• The subsequent 4 digits indicate the resistor type,
specification and packaging; see the 12NC Ordering Code
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
Ordering Example
The ordering code of a CMA 0204 resistor, value 47 kΩ with
± 2 % tolerance, supplied in blister tape of 3000 units per reel
is: 2312 159 24703.
12NC ORDERING CODE - resistor type and packaging
DESCRIPTION
TYPE
CMA 0204
TOL.
±2%
BL
159 2....
ORDERING CODE 2312 ... .....
BLISTER TAPE ON REEL
B0
149 2....
Resistance ranges printed in bold are preferred T.C. / tolerance combinations with optimized availability.
www.vishay.com
8
For technical questions contact: [e-mail]
Document Number: 28717
Revision: 27-Feb-04