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Document Number: 20004

30

Revision: 16-Sep-11

SMM0204

Vishay Draloric

Thin Film Mini-MELF Resistors

This document is subject to change without notice.

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

Notes

• 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.

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



the purpose of system MTBF calculations, compared with



STANDARD ELECTRICAL SPECIFICATIONS

MODEL

POWER RATING

W

LIMITING ELEMENT

VOLTAGE

V

TEMPERATURE

COEFFICIENT

ppm/K

TOLERANCE

%

RESISTANCE

RANGE



E-SERIES

SMM0204

0.25

200

± 15

± 0.1

± 0.25

± 0.5

43R to 221K

22R to 221K

10R to 221K

24; 96; 192

SMM0204

0.25

200

± 25

± 0.1

± 0.25

±0.5

43R to 511K

22R to 511K

10R to 1M0

24; 96; 192

SMM0204

0.25

200

± 50

± 0.5

± 1

10R to 1M0

R82 to 10M

24; 96; 192

24; 96

SMM0204

0.25

200

± 100

± 5

R22 to 10M

24

Zero-Ohm-Resistor: OMM0204

TECHNICAL SPECIFICATIONS

PARAMETER

UNIT

SMM0204

Power rating

W0.25

V

200

V

300

Insulation resistance

Category temperature range

°C

- 55 to + 125 (+ 155)