MCS 0402 AT, MCT 0603 AT, MCU 0805 AT, MCA 1206 AT - Precision

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Vishay Beyschlag

Revision: 05-Oct-2021

2

Document Number: 28785

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

APPLICATION INFORMATION

When the resistor dissipates power, a temperature rise above the ambient temperature occurs, dependent on the thermal

resistance of the assembled resistor together with the printed circuit board. The rated dissipation applies only if the permitted

film temperature is not exceeded.

Please

consider

the

application

note

“Thermal

Management

in

Surface-Mounted

Resistor

Applications”

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.

Note

• The presented operation modes do not refer to different types of resistors, but actually show examples of different loads, that lead to

different film temperatures and different achievable load-life stability (drift) of the resistance value. A suitable low thermal resistance of the

circuit board assembly must be safeguarded in order to maintain the film temperature of the resistors within the specified limits. Please

information on the general nature of thermal resistance

Note

MAXIMUM RESISTANCE CHANGE AT RATED DISSIPATION

OPERATION MODE

STANDARD

POWER

Rated dissipation,

MCS 0402 AT

0.063 W

0.100 W

MCT 0603 AT

0.100 W

0.125 W

MCU 0805 AT

0.125 W

0.200 W

MCA 1206 AT

0.250 W

0.400 W

Operating temperature range

-55 °C to 125 °C

-55 °C to 155 °C

Permissible film temperature,

125 °C

155 °C

Max. resistance change at

for resistance range, |

ΔR/R| after:

MCS 0402 AT

47

Ω to 1 MΩ

47

Ω to 1 MΩ

MCT 0603 AT

47

Ω to 2 MΩ

47

Ω to 2 MΩ

MCU 0805 AT

47

Ω to 7.5 MΩ

47

Ω to 7.5 MΩ

MCA 1206 AT

47

Ω to 10 MΩ

47

Ω to 10 MΩ

1000 h

≤ 0.1 %

≤ 0.2 %

8000 h

≤ 0.2 %

≤ 0.4 %

225 000 h

≤ 0.6 %

-

TYPE / SIZE

TCR

TOLERANCE

RESISTANCE

E-SERIES

MCS 0402 AT

± 25 ppm/K

± 0.1 %

47

Ω to 1 MΩ

E24; E192

± 15 ppm/K

47

Ω to 100 kΩ

± 10 ppm/K

47

Ω to 10 kΩ

MCT 0603 AT

± 25 ppm/K

± 0.1 %

47

Ω to 2 MΩ

E24; E192

± 15 ppm/K

47

Ω to 221 kΩ

± 10 ppm/K

47

Ω to 100 kΩ

± 5 ppm/K

3.9 k

Ω to 100 kΩ

MCU 0805 AT

± 25 ppm/K

± 0.1 %

47

Ω to 7.5 MΩ

E24; E192

± 15 ppm/K

47

Ω to 332 kΩ

± 10 ppm/K

47

Ω to 33.2 kΩ

MCA 1206 AT

± 25 ppm/K

± 0.1 %

47

Ω to 10 MΩ

E24; E192

± 15 ppm/K

47

Ω to 511 kΩ

± 10 ppm/K

47

Ω to 43.2 kΩ