SMM0204
Vishay Draloric
Thin Film Mini-MELF Resistors
FEATURES
Advanced thin film technology
AEC-Q200 qualified
Low TCR and tight tolerances
Excellent stability in different environmental
conditions
Pure tin termination on nickel barrier, plated on
press fit steel caps
Compliant to RoHS Directive 2002/95/EC
STANDARD ELECTRICAL SPECIFICATIONS
LIMITING ELEMENT
TEMPERATURE
COEFFICIENT
ppm/K
RESISTANCE
RANGE
POWER RATING
TOLERANCE
%
VOLTAGE
DC or ACRMS
V
MODEL
E-SERIES
P70
W
0.1
0.25
0.5
43R to 221K
22R to 221K
10R to 221K
SMM0204
SMM0204
0.25
0.25
200
15
25
24; 96; 192
24; 96; 192
0.1
0.25
0.5
43R to 511K
22R to 511K
10R to 1M0
200
200
0.5
1
10R to 1M0
R82 to 10M
24; 96; 192
24; 96
SMM0204
SMM0204
0.25
0.25
50
200
100
5
R22 to 10M
24
Zero-Ohm-Resistor: OMM0204
Notes
Rmax. = 10 m
Imax. = 3 A
•
SMM0204 EN803 E0 and OMM0204 EN803 E0 respectively are available versions with IECQ-CECC approval to EN 140401-803, version A,
with nominal failure rate level E0.
•
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 of 155 °C is not exceeded.
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
W
SMM0204
Power rating P70
0.25
Limiting element voltage, DC or ACRMS
Insulation voltage (1 min), DC or ACPEAK
Insulation resistance
V
200
300
V
1010
Category temperature range
Failure rate: FITobserved
°C
- 55 to + 125 (+ 155)
0.1 x 10-9/h
Notes
•
The upper temperature limit of 125 °C reflects the prescriptions of the detail specification EN 140401-803. However, the products may be
operated up 155 °C, if the tradeoff through decreased drift stability is acceptable to the specific application.
•
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 of 125 °C or 155 °C respectively
is not exceeded.
•
•
The specification of this product is based on a test board according to EN 140400, providing a thermal resistance of approximately 220 K/W.
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.
The IECQ-CECC approved product versions SMM0204 EN803 E0 and OMM0204 EN803 E0 respectively feature a quality factor Q = 3 for
the purpose of system MTBF calculations, compared with Q = 10 for the standard versions.
•
** Please see document “Vishay Material Category Policy”: www.vishay.com/doc?99902
www.vishay.com
30
For technical questions, contact: melf@vishay.com
Document Number: 20004
Revision: 16-Sep-11
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