0242.050UAT1 datasheet for Littelfuse (PDF)

Special Application Fuses 242 Series Barrier Network Fuse

Barrier Network Fuse 242 Series Description 5IF

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Agency Approvals Agency

1500A minimum.

Agency File Number

Ampere Range

Recognized under the components program of Underwriters Laboratories (JDYX2-10480)

Applications

0.050 - 0.250 A

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Electrical Characteristics % of Ampere Rating

Opening Time

110%

4 hours, Minimum

300%

10 seconds, Maximum

1000%

0.002 seconds, Maximum

Electrical Characteristics

Amp Code

Body Color Coding

0.050

.050

Red

0.080

.080

Green

0.100

.100

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Interrupting Rating

Nominal Nominal Cold Melting Resistance 2 I t (A2 Sec.) (Ohms) 11.34

4000A @ 250VAC/VDC

Agency Approvals

0.000103

x

8.19

0.000214

x

3.60

0.000977

x

0.160

.160

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3.00

0.00157

x

0.200

.200

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2.68

0.0038

x

0.250

.250

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1.6

0.00579

x

© 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/242.html for current information.

341 Revised: Jan 12, 2009

242 Series

Ampere Rating (A)

Barrier Network Fuse 242 Series

Introduction to Application Circuit Protection Special Fuses

242 Series Barrier Transientology Network Fuse

Average Time Current Curves .050 A .080 A .100 A .125 A .160 A .200 A .250 A

Dimensions

4.60mm (.181")

100

1.90mm (.075")

3.02mm (.119")

TIME IN SECONDS

.635mm (.025")

8.40mm (.331")

10

4.60mm (.181")

1

1.90mm (.075")

3.02mm (.119") 8.40mm (.331")

0.1

9.80mm 2.90mm 0.01

3.20mm 0.001 0.1

1

1000

100 10 CURRENT IN AMPERES

Soldering Parameters

Pre Heat

Pb – Free assembly 150°C

- Temperature Max (Ts(max))

200°C

- Time (min to max) (ts)

60 – 180 secs 5°C/second max

TS(max) to TL - Ramp-up Rate

5°C/second max

- Temperature (TL) (Liquidus)

217°C

- Temperature (tL)

60 – 150 seconds

Peak Temperature (TP)

250

+0/-5

TL TS(max)

Time within 5°C of actual peak Temp. (tp)

20 – 40 seconds 5°C/second max

Time 25°C to peak Temperature (TP)

8 minutes Max.

Do not exceed

260°C

tL Ramp-down Preheat

TS(min)

tS

25 time to peak temperature (t 25ºC to peak)

°C

Ramp-down Rate

Wave Soldering

Product Characteristics

Time

260°C, 10 seconds max.

Part Numbering System

Operating Temperature

–40OC to 125OC.

Thermal Shock

Withstands 5 cycles of – 55OC to 125OC

Vibration

Per MIL-STD-202F

Insulation Resistance (After Opening)

Greater than 10,000 ohms.

Barrier Network Fuse 242 Series

Critical Zone TL to TP

Ramp-up

Average ramp up rate (Liquidus Temp (TL) to peak

Reflow

tP

TP

- Temperature Min (Ts(min))

Temperature

Reflow Condition

SERIES AMP CODE

0242.050UAT1

Refer to Amp Code column in the Electrical Specifications table.

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342

© 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/242.html for current information.