SMP1.25 BEL [Bel Fuse Inc.], SMP1.25 Datasheet
SMP1.25
Manufacturer Part Number
SMP1.25
Description
Surface Mount Power Cross Protection Fuse
Manufacturer
BEL [Bel Fuse Inc.]
Datasheet
1.SMP1.25.pdf
(2 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SMP1.25A
Manufacturer:
Coilcraft
Quantity:
2 150
19
SMPD0104
Bel Fuse Inc.
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.)
accordance with the attached table.
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.
Electrical Characteristics
Approvals
Environmental Specification
Soldering Techniques & Compatability
Shock
Vibration
Salt Spray
Insulation Resistance
Solderability
Resistance to solder Heat
r
e T
Reflow: Industrial standard, 240 C peak
MIL-STD-202, Method 213, Test Condition I (100 G’s peak for
MIL-STD-202, Method 201 (10-55 Hz, 0.06 inch, total
MIL-STD-202, Method 101, Test condition B (48 hrs)
MIL-STD-202, Method 302, Test Condition A
MIL-STD-202, Method 208
MIL-STD-202, Method 210, Test Condition J (235 C, 30 sec)
SMP Surface Mount Power Cross Protection Fuses are primarily intended
These fuses will withstand transient surge currents generated by lightning in
SMP Fuses guard protected circuitry against sustained overload or short
SMP Fuse are used in circuits to obtain compliance with the test
i t s
a S
6 milliseconds)
excursion)
(After Opening) 10,000 ohms minimum
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206 Van Vorst Street, Jersey City, NJ 07302 • Tel: 201-432-0463 • Fax: 201-432-9542 • E-Mail: belfuse@belfuse.com
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Type SMP
Surface Mount Power Cross Protection Fuse
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Website: www.belfuse.com
Power Cross (Telecom) Rating
(Fuse Rated 0.1-1.5A)
Consult manufacturer for other ratings
SMP 1.25 Surge Withstand Ratings
Physical Specification
Mechanical Dimensions
Thermal Shock
Operating Temperature
Materials
Marking
Packaging
S
S
V
P M
P M
Ceramic Body / Tin Plated Brass Caps
Lead Free Solder
On fuse: “bel”, “Current Rating”
On label: Above info; “Type”, “Voltage Rating”, “Appropriate Safety Logos”
2,000 fuses in 13 inches dia. reel, 16 mm wide tape, 8 mm pitch,
MIL-STD-202, Method 107, Test Condition B (-65 C to +125 C)
-55 C to +125 C
1
2
5
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b
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e g
g o
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Interrupting Rating plus “c“
per EIA standard 481
r e
SMP
F
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A 2 .
o l r
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t n e
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a t l
x a
a t l
( 0 . 1 2 0 " 0 . 0 0 5 " )
T
x
x
V 0
V 0
V 0
V 0
V 0
Recommended pad layout
V 0
V 0
x
D
m i
3 . 0 5 0 . 1 3 m m
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( 0 . 1 2 0 " 0 . 0 0 5 " )
S u
S u
m
ORDERING INFORMATION SEE PAGES 67 & 68
3 . 0 5 0 . 1 3 m m
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( 0 . 3 8 " 0 . 0 1 " )
@
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bel 1.25
i t l
Double-exponential
Impulse Waveform
2
8 . 1
(Peak Value) lp
0 1
7 1
( 0 . 0 8 0 " 0 . 0 0 4 " )
g n
S
2 . 0 3 0 . 1 0 m m
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2
T
0.1 lp
0.9 lp
0.5 lp
Current
e P
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0 1
k a
P
S u
s l u
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TO
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A (
x
1
a
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5 2
Waveform Duration Of A/B Seconds
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m
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C
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0 0
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b
T1
0 0
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S u
4 . 0 6 m m
( 0 . 1 6 " )
t n
V
e P
1
0 1
A = Rise Time = T1-T0 (1.25(b-a)
B = Duration = T2-T0
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SMP1.25 Summary of contents
Page 1
SMPD0104 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 ...
Page 2
Type SMP Surface Mount Power Cross Protection Fuse SMP - TIME CURRENT CHARACTERISTIC CURVE 10000 10 1000 100 100 10 1 0.1 0.01 0.01 0.1 NOTE - see important information under “User Guide”on P.08 Corporate Office Bel Fuse Inc. 206 ...