For technical questions, contact sfer@vishay.com

Document Number: 50049

Revision 30-May-06

www.vishay.com

14

LTO 30

Vishay Sfernice

Resistance Range

0.010

Ω to 550 kΩ

Tolerances (Standard)

± 1 % to ± 10 %

Dissipation and Associated

Onto a heatsink

Power Rating

30 W at + 25 °C (case temperature)

and Thermal Resistance

of the component

free air:

2.25 W at + 25 °C

Temperature Coefficient

See Performance table

Standard

± 150 ppm/°C

Limiting Element Voltage

250 V

Dielectric Strength

MIL STD 202

Insulation Resistance

≥ 10

Inductance

≤ 0.1 µH

Critical Resistance

2.08 k

Ω

ELECTRICAL SPECIFICATIONS

30 Watt Power Resistor Thick Film Technology

FEATURES

• 30 Watt at 25 °C Case Temperature Heatsink

Mounted

• Direct mounting ceramic on heatsink

• Broad Resistance Range: R010 to 550K

• Non Inductive

• TO-220 package: Compact and easy to mount

• RoHS compliant

• Isolated case

• Tolerance unless otherwise specified: ± 0.3 mm

DIMENSIONS in millimeters

MECHANICAL SPECIFICATIONS

Mechanical Protection

Molded

Resistive Element

Thick Film

Substrate

Alumina

Connections

Tinned Copper

Weight

2 g max.

Mounting Torque

1N-m

DIMENSIONS

Standard Package

TO-220

Isolated case

ENVIRONMENTAL SPECIFICATIONS

Temperature Range

- 55 °C to + 150 °C

Climatic Category

55/155/56

3.2

16.2

10.4

1.8

5.08

0.6

3.5

1.3

0.8

12.7

3.2

Ø3.2

LTO series are the extension of RTO types. We used the direct

ceramic mounting design (no metal tab) of our RCH power

resistors applied to semiconductor packages.

RoHS

COMPLIANT