Single Value Chip Resistors

RMK 55N, 515N

Vishay Sfernice

www.vishay.com

For technical questions, contact: sfer@vishay.com

Document Number: 60071

32

Revision: 06-Oct-08

The demand for high precision, high stability resistive chips

for incorporating in hybrid micro-circuits has increased and

is catered for by the comprehensive range of VISHAY micro

and minichips.

The super stable RMK nickel chromium resistive film has

transformed the performances and characteristics of micro

resistive chips bringing a “new state-of-the-art” to the

technology. A variety of substrates are available in silicon,

alumina, to ensure the best possible characteristics

compatible with your application needs.

Precision wafer laser trimming is employed to trim each

resistor to precise tolerance.

FEATURES

• Precise tolerance from ± 0.01 % to ± 1 %

• Wide resistance ranges from 1 kΩ to 2 MΩ

• Low temperature coefficient ± 10 ppm/°C max.

• Excellent stability < 500 ppm (2000 h, at

+ 70 °C under Pn)

• Wirebondable

TYPICAL PERFORMANCE

SCHEMATIC AND PATTERN

Note:

* Please see document “Vishay Green and Halogen-Free Definitions (5-2008)” http://www.vishay.com/doc?99902

Actual Size

ABS

TCR

5 ppm/°C

TOL.

0.01 %

R

STANDARD ELECTRICAL SPECIFICATIONS

TEST

SPECIFICATIONS

CONDITIONS

MATERIAL

Resistance range

1 k

Ω to 750 kΩ

1 k

Ω to 2 MΩ

RMK 55

RMK 515

Absolute TCR:

± 5 ppm/°C

± 10 ppm/°C

0 to + 70 °C

- 55 °C to + 155 °C

Absolute tolerance:

0.01 % to 1 %

Stability:

ΔR/R

± 0.03 %

2000 h Pn at + 70 °C

Voltage coefficient

< 0.1 ppm/V

Working voltage

100 V

Operating temperature range

Storage temperature range

- 55 °C to + 155 °C

Noise

< - 35 dB typical

Thermal EMF

< 0.01 µV/°C

Shelf life stability

50 ppm

1 year at + 25 °C

Power rating

250 mW (RMK 55)/500 mW (RMK515)

125 mW (RMK 55)/250 mW (RMK 515)

25 °C

70 °C