Datasheet > 042902.5WRM

042902.5WRM

更新时间： 2024-09-30 12:51:23

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Surface Mount Fuses

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042902.5WRM 数据手册

Surface Mount Fuses

Thin-Film Surface Mount

1206 Very Fast-Acting Fuse 429 Series

•

For new designs please consult the 433 or 466 Series on pages 258-260.

ELECTRICAL CHARACTERISTICS:

% of Ampere

Rating

Opening

Time at 25°C

100%

200%

300%

4 hours, Minimum

5 seconds, Maximum

0.2 seconds, Maximum

AGENCY APPROVALS: Recognized under the Components Program

of Underwriters Laboratories and Certified by CSA.

AGENCY FILE NUMBERS: UL E10480, CSA LR 29862.

INTERRUPTING RATINGS:

0.125 – 3A

4 – 7A

50 amperes at rated voltage, VAC/VDC

35 amperes at rated voltage, VAC/VDC

RECOMMENDED PAD LAYOUTS

3.18

(.125")

ENVIRONMENTAL SPECIFICATIONS:

Operating Temperature: –55°C to 90°C. Consult temperature rerat-

ing chart on page 4. For operation above 90°C contact Littelfuse.

Vibration: Withstands 10–55 Hz per MIL-STD-202F,

Method 201A and 10-2000 Hz at 20 G’s per MIL-STD-202F, Method

204D, Condition D.

Insulation Resistance (After Opening): Greater than 10 KOhm.

Resistance to Soldering Heat: Withstands 60 seconds above

200°C up to 260°C, maximum.

1.52

3.81

(.060")

(.150")

1.14

(.045")

2.49 (.098")

REF.

1.12

2.03

(.080")

(.044")

REF.

REFLOW SOLDER

1.14

(.045")

Thermal Shock: Withstands 5 cycles of –55° to 125°C.

PHYSICAL SPECIFICATIONS:

Materials: Body: Epoxy Substrate

Terminations: Copper/Nickel/Tin-Lead (95/5)

Cover Coat: Conformal Coating

.635

(.025")

Soldering Parameters:

Average Time Current Curves

Reflow Solder — 260°C, 30 seconds maximum

PACKAGING SPECIFICATIONS: 8mm Tape and Reel per

EIA-RS481-1 (IEC 286, part 3); 3,000 per reel, add packaging suffix, WR.

100

PATENTED

ORDERING INFORMATION:

For New Designs Use 433 or 466 Series.

Nominal

Voltage

Rating

Nominal

Resistance

Cold Ohms¹

Catalog

Number

Ampere

Rating

Marking

Code

Melting I²t

(A²Sec.)²

429.125

429.200

429.250

429.375

429.500

429.750

429 001

429 1.25

429 01.5

429 1.75

429 002

429 02.5

429 003

429 004

429 005

429 007

0.125

0.200

0.250

0.375

0.500

0.75

1.00

1.25

1.50

1.75

2.0

125

2.30000

0.93800

0.62500

0.37500

0.24050

0.13700

0.09950

0.07475

0.06250

0.05000

0.03975

0.03065

0.02625

0.01926

0.01375

0.00925

0.00020

0.00055

0.00100

0.00280

0.0060

0.0170

0.035

0.065

0.125

0.150

0.230

0.500

0.700

1.50

0.1

0.01

2.5

3.0

4.0

5.0

2.70

3.60

7.0

¹Measured at 10% of rated current, 25°C.

²Measured at rated voltage.

0.001

0.1

100

CURRENT IN AMPERES

364

www. littelfuse. com

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