PVHT

www.vishay.com

Vishay Sfernice

Revision: 13-Nov-15

1

Document Number: 53060

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

High Stability - Very High Temperature (270 °C)

Thin Film Wraparound Chip Resistors, Sulfur Resistant

INTRODUCTION

For applications such as down hole applications, the need

for parts able to withstand very severe conditions

(temperature as high as 250 °C powered or up to 270 °C

un-powered) has led Vishay Sfernice to push out the limit of

the thin film technology.

Designers

might

read

the

application

note

“Power

Dissipation

Considerations

in

High

Precision

Vishay

Sfernice

Thin

Film

Chip

Resistors

and

Arrays

(P,

PRA

etc…)

(High

Temperature

Application)”

www.vishay.com/doc?53047

in

conjunction

with

this

datasheet to help them to properly design their board and

get the best performances of the PVHT.

Vishay Sfernice research and development engineers will be

willing to support any customer design considerations.

FEATURES

• Operating temperature range: -55 °C; +250 °C

• Storage temperature: -55 °C; +270 °C

• Gold terminations (< 1 μm thick)

• 5 sizes available (0402, 0603, 0805, 1206,

2010); other sizes upon request

• Temperature coefficient down to 5 ppm/°C

typical, 10 ppm/°C maximum (-55 °C; +270 °C)

• Tolerance down to 0.05 %

• Load life stability: 0.8 % typical (1 % max.) after 2000 h at

250 °C (ambient) at Pn

• Shelf life stability: 1.5 % typical after 8000 h

• SMD wraparound

• 0.02 % upon request

• TCR remains constant after long term storage at 270 °C

• Sulfur resistant (per ASTM B809-95 humid vapor test)

• Material categorization: for definitions of compliance

Notes

Caution:

Performances obtained with following mounting conditions:

• Test board material: alumina

• Solder paste: PbSnAg (93.5/5/1.5)

STANDARD ELECTRICAL SPECIFICATIONS

MODEL

SIZE

RESISTANCE

RANGE

Ω

W

LIMITING ELEMENT

VOLTAGE

V

TOLERANCE

± %

TEMPERATURE

± ppm/°C

PVHT0402

0402

39 to 45K

0.031

50

0.05, 0.1, 0.5, 1

5, 10, 15, 25, 30, 50, 55

PVHT0603

0603

39 to 108K

0.062

75

0.05, 0.1, 0.5, 1

5, 10, 15, 25, 30, 50, 55

PVHT0805

0805

39 to 240K

0.100

150

0.05, 0.1, 0.5, 1

5, 10, 15, 25, 30, 50, 55

PVHT1206

1206

39 to 900K

0.165

200

0.05, 0.1, 0.5, 1

5, 10, 15, 25, 30, 50, 55

PVHT2010

2010

39 to 2.5M

0.2

300

0.05, 0.1, 0.5, 1

5, 10, 15, 25, 30, 50, 55

CLIMATIC SPECIFICATIONS

Operating temperature range

-55 °C; +250 °C

Storage temperature range

-55 °C; +270 °C

PERFORMANCE VS. HUMID SULFUR VAPOR

Test conditions

50 °C ± 2 °C, 85 % ± 4 % RH,

exposure time 500 h

Test results

Resistance drift < (0.05 %

R + 0.05 Ω),

no corrosion products observed

MECHANICAL SPECIFICATIONS

Substrate

Alumina

Resistive Element

Thin Film

Passivation

Protection

Epoxy + Silicone

Terminations

Gold (< 1 μm) over nickel barrier