SMP500 Datasheet, PDF (1/2 Pages) Bel Fuse Inc. – Surface Mount Power Cross Protection Fuse

SMPD0104
Type SMP
Surface Mount Power Cross Protection Fuse
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.They are designed to be placed between the line input and the surge
arresting components (mov. gas tube, zenor diode, air gaps, etc.)
These fuses will withstand transient surge currents generated by lightning in
accordance with the attached table.
SMP Fuses guard protected circuitry against sustained overload or short
circuit conditions. Such sustained overloads may be generated by accidental
contact between utility cables and phone lines (power line cross).
SMP Fuse are used in circuits to obtain compliance with the test
requirements specified in UL 1950/60950 and Bellcore GR 1089.
Electrical Characteristics (UL STD. 248-14)
Testing current
100%
200%
500%
1000%
Blow Time
Minimum
Maximum
4 hrs.
N/A
3 sec
60 sec
100 msec
1.5 sec
30 msec
300 msec
Approvals
rc
Safety Agency
Approvals
Interrupting Rating
r ^{Recognized File no.}
E20624
60A@ 600V AC
100A@ 125V DC
Power
Factor
Resistive
Resistive
Intended
Application
Telecom Protection
General Purpose
Environmental Specification
Soldering Techniques & Compatability
Reflow: Industrial standard, 240°C peak
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
MIL-STD-202, Method 208
Resistance to solder Heat
MIL-STD-202, Method 210,Test Condition J (235°C, 30 sec)
Catalog
Number
Ampere
Rating
Voltage
Rating
Typical
Cold
Resistance
(ohm)
Volt-drop
@100% In
(Volt)
max.
SMP 500 500mA 600V 0.350 0.28
SMP 1.25 1.25A 600V 0.090 0.18
Consult manufacturer for other ratings
Melting I²T
< 10 mSec
(A² Sec)
1.4
14
Melting I²T
@10 In
(A² Sec)
Peak Surge Current
(Amp)
50 Pulses 1,000V
10 uS x 1000 uS
Peak Surge Current
(Amp)
10 Pulses 1,000V
10 uS x 1000 uS
1.8
25
35
17
100
N/A
Maximum
Power
Dissipation
(W)
0.25
0.40
SMP 1.25 Surge Withstand Ratings
Peak Maximum
Voltage Surge Rise/Duration
Current
Time
Repetitions
1000V 100A 10 uS x 1000 uS 100 Pulses (50 Each Polarity)
2500V 500A 2 uS x 10 uS 40 Pulses (20 Each Polarity)
5000V 500A 2 uS x 10 uS 4 Pulses (2 Each Polarity)
Power Cross (Telecom) Rating
(Fuse Rated 0.1-1.5A)
Double-exponential
Impulse Waveform
Overload
Current
200% Fuse Rating
2.2A
7A
40A
60A
Voltage
600V
600V
600V
600V
600V
Clearing Time Limit
1.25A
max. 60 sec
max. 15 min
max. 1 sec
max. 50 msec
max. 20 msec
500mA
max. 60 sec
max. 2 min
max. 100msec
max. 30 msec
max. 20 msec
Current ^{Waveform Duration Of A/B Seconds}
(Peak Value) lp
0.9 lp
A = Rise Time = T1-T0 (1.25(b-a)
B = Duration = T2-T0
0.5 lp
0.1 lp
a
TO
b
T1
Time
T2
Thermal Shock
MIL-STD-202, Method 107,Test Condition B (-65°C to +125°C)
Operating Temperature
-55°C to +125°C
Physical Specification
Materials
Ceramic Body / Tin Plated Brass Caps
Lead Free Solder
Marking
On fuse: “bel”, “Current Rating”
On label: Above info; “Type”, “Voltage Rating”, “Appropriate Safety Logos”
Interrupting Rating plus “c“
Packaging
2,000 fuses in 13 inches dia. reel, 16 mm wide tape, 8 mm pitch,
per EIA standard 481
Mechanical Dimensions
SMP
3.05±0.13mm
(0.120"±0.005")
3.05±0.13mm
(0.120"±0.005")
2.03±0.10mm
(0.080"±0.004")
bel 1.25
9.65±0.25mm
(0.38"±0.01")
3.81mm
(0.15")
Recommended pad layout
5.08mm
(0.20")
4.06mm
(0.16")
ORDERING INFORMATION SEE PAGES 67 & 68
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel: [phone] • Fax: [phone] • E-Mail: [e-mail]
Website: www.belfuse.com
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