High Surge Film

HSF Series

150°C maximum operating temperature

RoHS - compatible components available

Up to triple the surge rating of the rugged CHP1

Replaces costly surface-mount wirewound resistors

General Note

IRC reserves the right to make changes in product specification without notice or liability.

All information is subject to IRC’s own data and is considered accurate at time of going to print.

A subsidiary of

TT electronics plc

• 4222 South Staples Street • Corpus Christi Texas 78411 USA

Wire and Film Technologies Division

Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com

thick film element

fired at 1000°C

to solid ceramic

Solder over

nickel barrier

High

temperature

dielectric

coating

Electrical Data

Industry

Footprint

Type

Maximum

Power Rating

Working

Voltage

Resistance

Range (Ω)

Tolerance

(±%)

TCR

(ppm/°C)

Product

Category

2512

HSF-1

1W @ 70°C

350

3612

HSF-2

2W @ 25°C

500

8R2, 22R, 300R

5R9, 6R8, 11R, 27R,

12R, 68R, 270R

Note 1 – Standard TCR is ±200ppm/°C. TCR of ±100ppm/°C is available at selected values on request.

High Surge

±200

10

High Surge

±200

10

Environmental Data

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Temperature Coefficient

As specified

MIL-R-55342H Par 4.7.9 (-55°C +125°C)

Thermal Shock

±0.5% +0.01 ohm

MIL-R-55342H Par 4.7.3 (-65°C +150°C, 5 cycles)

Low Temperature Operation

±0.25% +0.01 ohm

MIL-R-55342H Par 4.7.4 (-65°C @ working voltage)

Short Time Overload

±0.5% +0.01 ohm

MIL-R-55342H Par 4.7.5

2.5 x P x R for 5 seconds

High Temperature Exposure

±0.5% +0.01 ohm

MIL-R-55342H Par 4.7.6 (+150°C for 100 hours)

Resistance to Bonding

Exposure

±0.25% +0.01 ohm

Solderability

95% min. coverage

MIL-STD-202, Method 208 (245°C for 5 seconds)

Moisture Resistance

±0.5% +0.01 ohm

MIL-R-55342H Par 4.7.8 (10 cycles, total 240 hours)

Life Test

±0.5% +0.01 ohm

MIL-R-55342H Par 4.7.10 (2000 hours at 70°C intermittent)

Terminal Adhesion Strength

±1% +0.01 ohm

no mechanical damage

1200 gram push from underside of mounted chip for 60 seconds

Resistance to Board bending

±1% +0.01 ohm

no mechanical damage

Chip mounted in center of 90mm long board, deflected 5mm so

as to exert pull on chip contacts for 10 seconds

√

HSF

High Surge Film

HSF-1 Series Issue October 2010 Sheet 1 of 4

1

1

Resistors

lm element

red at 1000˚C

to solid ceramic

Solder over

nickel barrier

High

temperature

dielectric

coating

All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2)

04.16

General Note

TT Electronics reserves the right to make changes in product specification without notice or liability.

All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.

© TT Electronics plc

www.ttelectronicsresistors.com

BI Technologies IRC Welwyn