SMP2 BEL [Bel Fuse Inc.], SMP2 Datasheet

SMP2

Manufacturer Part Number

SMP2

Description

Surface Mount Power Cross Protection Fuse

Manufacturer

BEL [Bel Fuse Inc.]

Datasheet

1.SMP2.pdf (2 pages)

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Electrical Characteristics (UL STD. 248-14)

Safety Agency Approvals

Environmental Specifications

Soldering Techniques & Compatability

Reflow: 240°C, 30sec max.

Wave Solder: 260°C, 3 sec max.

Shock

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

(100 G's peak for 6 milliseconds).

Vibration

MIL-STD-202, Method 201 (10-55 Hz, 0.06 inch, total excursion).

Salt Spray

MIL-STD-202, Method 101, Test condition B (48 hrs).

Insulation Resistance

MIL-STD-202, Method 302, Test Condition A

(After Opening) 10,000 ohms minimum.

Solderability

Resistance to solder Heat:

MIL-STD-202, Method 210, Test Condition J (235°C, 30 sec)

Thermal Shock

MIL-STD-202, Method 107, Test Condition B

(-65°C to +125°C)

Operating Temperature

-55°C to +125°C

MIL-STD-202, Method 208.

Approval Standards

intended for use in telecommunication circuit applications requiring low

current protection with high surge tolerance. They are typically used to

replace heat coil type devices. They are designed to be placed between

the line input and the surge arresting components (mov. gas tube,

zenor diode, air gaps, etc.)

lighting in accordance with the attached table.

short circuit conditions. Such sustained overloads may be generated by

accidental contact between utility cables and phone lines (power line

cross).

requirements specified in UL 1950/60950 and Bellcore GR 1089.

Recognized File

Testing Current

SMP Surface mount Power Cross Protection Fuses are primarily

SMP fuses guard protected circuitry against sustained overload or

no. E20624

These fuses will withstand transient surge currents generated by

SMP Fuse are used in circuits to obtain compliance with the test

26-Aug-03

File No.

1000%

110%

200%

500%

Specification Subject To Change Without Notice

Interrupting Rating

100A@ 125Vdc

60A@ 600Vac

Minimum

100 msec

30 msec

4 hrs.

N/A

Blow Time

Resistive

Power

Factor

defining a degree of excellence

Maximum

300 msec

1.5 sec

60 sec

N/A

Intended Application

Surface Mount Power Cross Protection Fuse

Telecom Protection

Type SMP 2A

General Purpose

SMP 2

Consult manufacturer for other ratings

SURGE WITHSTAND RATINGS

Power Cross (Telecom) Rating

Physical specification

Materials

Marking

Packaging

Mechanical Dimensions

Catalog

Number

Voltage

Overload Current

1000V

2500V

5000V

30A

60A

SMP

Ampere

Current

Rating

Surge

Peak

120A

500A

Ceramic Body / Tin Plated Brass Caps

Lead Free Solder

On fuse: "bel", "Current Rating"

On label: Above info; "Type", "Voltage Rating", "Appropriate Safety Logos"

2000 fuses in 13 inches dia. Reel, 16mm wide tape, 8mm pitch, per EIA standard 481

Interrupting Rating plus "

Voltage

Rating

600V

10 uS x 1000 uS

Rise/Duration

2 uS x 10 uS

Maximum

Time

Typical Cold

Resistance

Minimum

1.1 sec

0.4 sec

(ohm)

0.055

Clearing Time Limit

N/A

100 Pulses ( 50 Each Polarity)

40 Pulses ( 20 Each Polarity)

4 Pulses ( 2 Each Polarity)

@100% In

(Volt) max.

Maximum

Volt-drop

13 msec

65 msec

900 sec

2.5sec

0.20

Repetitions

bel 2A

(Peak Value) Ip

Melting I²T

< 10 mSec

(A² Sec)

14.0

Current

0.1 Ip

Double -exponential Impulse Waveform

Melting I²T

@ 10 In

(A² Sec)

Waveform Duration Of A/B Seconds

17.0

Dissipation

Maximum

Power

0.71

A=Rise Time=T1-T0 (1.25(b-a)

B= Duration =T2-T0

(w)

Time

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SMP2 Summary of contents

Page 1

SMP Surface mount Power Cross Protection Fuses are primarily intended for use in telecommunication circuit applications requiring low current protection with high surge tolerance. They are typically used to replace heat coil type devices. ...

Page 2

Type SMP 2A Surface Mount Power Cross Protection Fuse 10000 1000 100 10 1 0.1 0.01 0.01 defining a degree of excellence SMP - TIME CURRENT CHARACTERISTIC CURVE 2A 0.1 1 CURRENT IN AMPERES 10 100 1000 ...

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