SFM

www.vishay.com

Vishay Electro-Films

Revision: 25-Feb-13

1

Document Number: 61017

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

Thin Film Top-Contact Resistor

Product may not be to scale

The SFM series single-value resistor chips offer a small size,

wide ohmic value range and excellent power capacity.

The SFMs tantalum nitride resistor material offers excellent

resistance to high moisture environments.

The SFMs are manufactured using Vishay Electro-Films

(EFI) sophisticated thin film equipment and manufacturing

technology. The SFMs are 100 % electrically tested and

visually inspected to MIL-STD-883.

FEATURES

• Wire bondable

• Small size: 0.020 inches square

• Case: 0202

• Resistance range: 1.0

 to 1 M

• DC power rating: 250 mW

• Oxidized silicon substrate for good power dissipation

• Resistor material tantalum nitride, self passivating

• Moisture resistant

• Material categorization: For definitions of compliance

APPLICATIONS

Vishay EFI SFM top-contact resistor chips are designed to

handle substantial power loads in many types of hybrid

packages. They are ideally suited for this purpose because

of their small size.

TEMPERATURE COEFFICIENT OF RESISTANCE, VALUES, AND TOLERANCES

PARAMETER

VALUE

UNIT

Total Resistance Range

1 to 1M



Standard Tolerances

± 0.1, ± 0.5, ± 1

%

TCR

± 25, ± 50, ± 100, ± 250

ppm/°C

STANDARD ELECTRICAL SPECIFICATIONS

PARAMETER

VALUE

UNIT

Noise, MIL-STD-202, Method 308

100

 to 250 k

< 100

 or > 251 k

- 35 typ.

- 20 typ.

dB

Moisture Resistance, MIL-STD-202 Method 106

± 0.5 max.

R/R

%

Stability, 1000 h, + 125 °C, 125 mW

± 0.25 max.

R/R

%

Operating Temperature Range

- 55 to + 150

°C

Thermal Shock, MIL-STD-202, Method 107, Test Condition F

± 0.25 max.

R/R

%

High Temperature Exposure, + 150 °C, 100 h

± 0.5 max.

R/R

%

Dielectric Voltage Breakdown

200

V

Insulation Resistance



Operating Voltage

100 max.

V

DC Power Rating at + 70 °C (Derated to zero at + 175 °C)

0.250

W

5 x Rated Power Short-Time Overload, + 25 °C, 5 s

± 0.25 max.

R/R

%

1

Ω

30

Ω

200 k

Ω 360 kΩ

0.1 %

Tightest Standard Tolerance Available

± 50 ppm/°C

± 250 ppm/°C

± 100 ppm/°C

± 25 ppm/°C

10

Ω

100

Ω

620 k

Ω 1 MΩ

1 %

0.5 %