Datasheet > R271.250

R271.250

更新时间： 2024-10-27 23:31:47

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Fuse

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R271.250 数据手册

SURFACE MOUNT FUSES

SUBMINIATURE SURFACE MOUNT

Nanofuse^™Very Fast-Acting Type Fuse

Nanofuse^™has similar electrical performance characteris-

tics to the PICO^®Fuse and is designed to meet a wide

variety of electrical and environmental MIL specifications for

more demanding applications.

ELECTRICAL CHARACTERISTICS:

% of Ampere

Rating

Ampere

Rating

Opening

Time

100%

1/16–15

1/16–5

7–10

4 hours, Minimum

1 second, Maximum

5 seconds, Maximum

20 seconds Maximum

200%

12–15

AGENCY APPROVALS: Recognized under the

Components Program of Underwriters Laboratories and

Certified by CSA.

AGENCY FILE NUMBERS: UL E10480, CSA LR 29862.

INTERRUPTING RATINGS:

.071"

MIN.

.236"

.117"

.080" MAX

300 amperes at rated voltage VDC

50 amperes at rated voltage VAC

.067"

MAX.

.070"

.096"

ENVIRONMENTAL SPECIFICATIONS:

Operating Temperature: –55°C to 125°C.

Shock: MIL-STD-202, Method 213, Test Condition I

(100 G’s peak for six (6) milliseconds).

Vibration: MIL-STD-202, Method 201 (10–55 Hz, .06 in.

total excursion).

.225"

MAX.

RECOMMENDED

PAD LAYOUT

Salt Spray: MIL-STD-202 Method 101, Test Condition B

(48 hrs.).

Insulation Resistance (After Opening): MIL-STD-202,

Method 302, Test Condition A, (1/2 Megohm minimum).

Resistance to Soldering Heat: MIL-STD-202,

Method 210, Test Condition F (20 sec. at 260°C).

Thermal Shock: MIL-STD-202, Method 107,

Test Condition B (–65 to 125°C).

Average Time Current Curves

Moisture Resistance: MIL-STD-202, Method 106, High

Humidity (90-98 RH), Heat (65°).

100

PHYSICAL SPECIFICATIONS:

Materials: Body: Ceramic

Terminations: Plated Brass Caps.

Soldering Parameters:

Wave Solder — 260°C, 10 seconds maximum

Reflow Solder — 260°C, 30 seconds maximum

Solderability: MIL-STD-202, Method 208.

PACKAGING SPECIFICATIONS: 12mm Tape and Reel per

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

PATENTED

ORDERING INFORMATION:

Nominal

Resistance

Cold Ohms

7.0

1.75

0.665

0.395

0.304

Nominal

Melting I²t

A²Sec.

0.0000750

0.00163

0.0106

0.0254

0.0546

Catalog

Number

R271.062

R271.125

R271.250

R271.375

R271.500

Ampere

Rating

1/16

1/8

1/4

3/8

1/2

Voltage

Rating

125

0.1

0.01

R271.750

R271 001

R271 01.5

R271 002

R271 02.5

R271 003

R271 03.5

R271 004

R271 005

R271 007

3/4

0.167

0.155

0.281

0.650

0.421

0.721

1.23

1.65

2.35

3.90

10.5

0.109

1 /

0.0603

0.0440

0.0340

0.0270

0.0220

0.0190

0.0145

0.0085

2 /

0.001

0.05 0.1

100

1000

3 /

CURRENT IN AMPERES

R271 010

R271 012

R271 015

0.0055

0.0044

0.0033

24.2

45.5

70.1

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