Type SST
Square Ceramic Surface Mount Slow Blow Fuse
belfuse.com/circuit-protection
SST Series – 2410 Size RoHS Compliant
Features
- Slow Blow
- Small size, 2410 SMD
- Wide range of current rating from 375mA to 7A
- Wide operating temperature range
- Tape & Reel for auto-insert SMD process
- Compatible with 260℃, IR Pb-free solder process
- Fully compliance with EU Directive 2011/65/EU and amending directive 2015/863 (MSL = 1)
- Halogen Free
- Lead Free
- AEC-Q Compliant
- Meets Bel automotive qualification*
* - Largely based on internal AEC-Q test plan
Applications
- Notebook
- LCD monitor
- PC computer
- Office electronic equipment
- Industrial equipment
- Medical equipment
- POE, POE+
- LCD / LED monitor
- Power supply
- LCD / LED TV
Electrical Characteristics (UL/CSA/STD.248-14) Safety Agency Approvals
Testing
Current
Blow Time
Minimum
Maximum
100%
4 Hrs.
N/A
200%
1 Sec
60 Sec
300%
0.2 Sec
3 Sec
800%
0.02 Sec
0.1 Sec
Physical Specifications
Materials
Marking
Safety
Agency
Safety
Agency
Certificate
Ampere Rating /
Voltage Rating
Ampere Range / Volt
@ I.R. ability*
LR39772
375mA-7A/125V AC
125V DC
375mA-7A/125V AC @50A
125V DC @50A
E20624
*I.R.= Interrupting Rating = Short Circuit Rating(Amps)
LEAD FREE =
HALOGEN FREE =
Specifications subject to change without notice
AEC-Q Compliant
EOL-Last Buy Date is March 31, 2021
Not recommended for new applications. Please see 0680L
Type SST
2 / 4
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302 USA
+1 201.432.0463
Bel.US.CS@belf.com
belfuse.com/circuit-protection
© 2020 Bel Fuse, Inc.
Rev. SST Aug2020
Temperature Derating Curve Average Time Current Curve
Electrical Specifications
Catalog
Number
Ampere
Rating
Typical
Cold
Resistance
(ohms)
Volt-drop
@100% In
(Volt) max.
Voltage and
Interrupting
Ratings
Melting I²T
<10 m Sec
(A² Sec)
Melting I²T
@10 In
(A² Sec)
Maximum
Power
Dissipation
(W)
Agency
Approvals
SST 375
375mA
0.72
0.53
See Table of
Safety
Approvals on
Page 1 for
Voltage and
associated
Interrupting
Ratings
0.15
0.15
0.25
Y
Y
SST 500
500mA
0.49
0.52
0.27
0.28
0.30
Y
Y
SST 625
625mA
0.40
0.50
0.45
0.47
035
Y
Y
SST 750
750mA
0.25
0.42
0.66
0.69
0.39
Y
Y
SST 1
1A
0.162
0.35
1.2
1.3
0.47
Y
Y
SST 1.5
1.5A
0.081
0.26
3
3.1
0.62
Y
Y
SST 2
2A
0.061
0.24
5
5.7
0.68
Y
Y
SST 2.5
2.5A
0.044
0.22
9
9
0.74
Y
Y
SST 3
3A
0.033
0.20
14
16
0.80
Y
Y
SST 3.5
3.5A
0.027
0.19
18
20
0.84
Y
Y
SST 3.75
3.75A
0.025
0.19
21
24
0.86
Y
Y
SST 4
4A
0.024
0.19
23
26
0.88
Y
Y
SST 5
5A
0.017
0.18
38
43
0.95
Y
Y
SST 6
6A
0.013
0.18
56
63
1.02
Y
Y
SST 6.3
6.3A
0.012
0.17
62
70
1.03
Y
Y
SST 7
7A
0.011
0.16
80
90
1.08
Y
Y
Consult manufacturer for other ratings
Specifications subject to change without notice
EOL-Last Buy Date is March 31, 2021
Not recommended for new applications. Please see 0680L
Type SST
3 / 4
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302 USA
+1 201.432.0463
Bel.US.CS@belf.com
belfuse.com/circuit-protection
© 2020 Bel Fuse, Inc.
Rev. SST Aug2020
Environmental Specifications
Soldering Parameters
Shock Resistance
MIL-STD-202G, Method 213B, Test Condition 1
(100 G's peak for 6 milliseconds; Sawtooth waveform)
Vibration Resistance
MIL-STD-202G, Method 201A (10-55 Hz, 0.06 inch, total excursion).
Salt Spray Resistance
MIL-STD-202G, Method 101E, Test Condition B (48 hrs).
Insulation Resistance
MIL-STD-202G, Method 302, Test Condition A
(After Opening) 10,000 ohms minimum.
Solderability
MIL-STD-202G, Method 208H
Resistance to solder Heat
MIL-STD-202G, Method 210F, Test Condition C. Top Side (260℃, 20 sec)
MIL-STD-202G, Method 210F, Test Condition D. Bottom Side (260℃,10 sec)
Thermal Shock
MIL-STD-202G, Method 107G, Test Condition B
(-65℃to +125℃).
Operating Temperature
-55℃ to +125℃
Moisture Sensitivity Level
1 ( According to IPC J-Std-020)
IR Reflow Profile (IPC/JEDEC J-STD-020D)
Preheat & Soak
Temperature min (Tsmin)
Temperature max (Tsmax)
Time (Tsmin to Tsmax) (ts)
150℃
200℃
60-120 seconds
Average ramp-up rate (Tsmax to Tp)
3℃/second max.
Liquidous temperature (TL)
Time at liquidous (tL)
217℃
60-150 seconds
Peak temperature (Tp)
260℃ max
Time (tp) within 5℃ of the specified
classification temperature (Tc)
30 seconds
Average ramp-down rate (Tp to Tsmax)
6℃/second max.
Time 25℃ to peak temperature
8 minutes max.
Lead-free Wave Soldering Profile
Wave Soldering Parameter
Average ramp-up rate
200℃ / second
Heating rate during preheat
typical 1 - 2℃ / second
Max 4℃ / second
Final preheat temperature
within 125℃ of soldering
temperature
Peak temperature Tp
260℃
Time within +0℃ / -5℃ of actual
peak temperature
10 seconds
Ramp-down rate
5℃ / second max.
Specifications subject to change without notice
EOL-Last Buy Date is March 31, 2021
Not recommended for new applications. Please see 0680L
Type SST
4 / 4
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302 USA
+1 201.432.0463
Bel.US.CS@belf.com
belfuse.com/circuit-protection
© 2020 Bel Fuse, Inc.
Rev. SST Aug2020
Fuse FGNO Explanation
0680 - [XXXX] X XX
0680-=SST; [XXXX]=Ampere Rating; XX=See Ordering Information as below
Mechanical Dimensions Ordering Information
Packaging
Packaging Tape & Reel
Packaging Specification
Quantity
Quantity & Packaging Code
12 mm wide tape with 13 inches Diameter reel
EIA Standard 481-E
5000
05
12 mm wide tape with 7 inches Diameter reel
EIA Standard 481-E
1000
01
Fraction
Decimal
Milliamps
Bel FGNO[XXXX]
Fraction
Decimal
Amps
Bel FGNO[XXXX]
3/8
0.375
375
0375
1.0
1
1000
1/2
.500
500
0500
1-1/2
1.5
1.5
1500
.625
625
0625
2.0
2
2000
3/4
.750
750
0750
2-1/2
2.5
2.5
2500
3.0
3
3000
3-1/2
3.5
3.5
3500
3.75
3.75
3750
4.0
4
4000
5.0
5
5000
6.0
6
6000
6.3
6.3
6300
7.0
7
7000
Specifications subject to change without notice
EOL-Last Buy Date is March 31, 2021
Not recommended for new applications. Please see 0680L