276.250 datasheet, PDF - EEWORLD Datasheet

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276.250: DescriptionElectric Fuse, Very Fast Blow, 0.25A, 125VAC, 125VDC, 50A (IR), Through Hole; CategoryCircuit protection Circuit protection; File Size76KB，2 Pages; ManufacturerLittelfuse; Websitehttp://www.littelfuse.com

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276.250 Overview

Electric Fuse, Very Fast Blow, 0.25A, 125VAC, 125VDC, 50A (IR), Through Hole

276.250 Parametric

Parameter Name	Attribute value
Maker	Littelfuse
Reach Compliance Code	unknow
ECCN code	EAR99
Other features	RATED BREAKING CAPACITY AT 125 VDC: 300 A
Fusing characteristics	VERY FAST
body height	7.11 mm
Body length or diameter	2.36 mm
Circuit protection type	ELECTRIC FUSE
Manufacturer's serial number	276
Installation features	THROUGH HOLE
Maximum operating temperature	125 °C
Minimum operating temperature	-55 °C
physical size	2.36mm x 7.11mm
Rated breaking capacity	50 A
Rated current	0.25 A
Rated voltage (AC)	125 V
Rated voltage (DC)	125 V
Guideline	CSA; UL
surface mount	NO
Terminal shape	PIN WIRE

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Axial and Radial Lead Fuses

Subminiature

PICO

Fuse

Very Fast-Acting Fuse 275/276 Series

ELECTRICAL CHARACTERISTICS:

% of Ampere

Rating

100%

Ampere

Rating

1/16-30

1/16-10

200%

12-30

Opening

Time

4 hours, Minimum

5 second, Maximum

10 seconds, Maximum

100

PHYSICALSPECIFICATIONS:

Materials:

Solder-Coated Copper Leads. R

Solderability:

MIL-STD-202, Method 208.

Lead Pull Force:

MIL-STD-202, Method 211, Test Condition A

(will withstand a 5 lb. axial pull test).

VARIATIONS IN DESIGN:

Picofuses which differ from the stan-

dard versions as presented on this page can be provided for a

commercial or military use. One such design version is where

the picofuse terminates at one end of a pin for use as a single or

multi-pin connector. Extreme accuracy in blowing time at 300% or

more of rating, makes these picofuses suitable for use in circuits

where sequential switching or redundancy may be required. The

small size of the fuse, its non-hygroscopic characteristic and

inﬁnitesimal weight makes it the ideal fuse for micro-electronic

circuits.

PATENTED

TIME IN SECONDS

0.1

0.01

0.001

0.05 0.1

1/4A

3/8A

1/2A

3/4A

1 1/4A

1 1/2A

2 1/2A

3 1/2A

10A

12A

15A

20A

25A

30A

100

CURRENT IN AMPERES

1/16A

1/8A

AGENCY APPROVALS:

Recognized under the Components

Program of Underwriters Laboratories and Certiﬁed by CSA.

AGENCY FILE NUMBERS:

UL E10480, CSA LR 29862.

INTERRUPTING RATINGS:

300 amperes at rated VDC

50 amperes at rated VAC

ENVIRONMENTALSPECIFICATIONS:

Operating Temperature:

–55°C to 125°C.

Shock:

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

(100 G’s peak for 6 milliseconds) and per method 2028 (78 G‘s

peak for 11 millseconds).

Vibration:

MIL-STD-202, Method 204A; Test Condition D (vibra-

tions of 10-2000 cps at 20 G‘s).

Insulation Resistance (After Opening):

MIL-STD-202, Method

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

Moisture Resistance:

MIL-STD-202, Method 106.

Average Time Current Curves

1000

w w w. l i t t e l f u s e . c o m

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