®
Bu s s m a n n
S MT Tim e -La g Fu s e
S u b m in ia t u re S u rfa c e Mo u n t Fu s e s
6 1 2 5 T
R
Dimensions - mm (inches)
1.50 ± 0.20
(0.059 ± 0.008)
2.50 ± 0.15
(0.098 ± 0.006)
B1.5
6.10 ± 0.20
(0.240 ± 0.008)
2.50 ± 0.15
(0.098 ± 0.006)
Ca ta log Sym bol: 6125T
Tim e -La g
Volta ge Ra ting: 125V AC/DC
Inte rrupting Ra ting:
Construction
50 Amp AC, Power Factor = 1.0
50 Amp DC, Battery Source
1
2
3
4
5
Phys ic a l Size :
EIA SOCM-6125AA.
6.1 ≈ 2.5 ≈ 2.5 mm (L ≈ W ≈ H)
Age nc y Approva ls :
1. Brass end plate (one of two)*.
Universal Modular Fuse, IEC127-4
UL Recognition, Std. 248-14, File E19180, Guide JDYX2
CSA Certified, C22.2 No. 248.14, File 53787, Class 1422-30
Additional Approvals Pending
Ge ne ra l Inform a tion:
2. High temperature brazing alloy preform (one of two).
3. Silver metallization*.
4. Ceramic body.
5. Spiral wound fusible element.
*End terminations plated with Ni and 90/10 Sn/Pb after assembly.
• Surge resistant time-lag fuse.
• Brazed seals: body to end plates.
• Compatible with wave soldering.
• Excellent environmental integrity.
• Economical overcurrent protection.
Tim e Curre nt Cha ra c te ris tic s :
125% of Rating: carry 1 hour min.
200%: Open within 2 minutes.
1000%: Open within 0.01 to 0.1 seconds.
Packaging and Ordering Information:
Tape and Reel: Standard 12mm tape, in compliance
with EIA-RS481 (equivalent to IEC 286, Part 3).
6125T
(See Table)
Product
Symbol
Rated Current
Package Code
TR = 1,000 pieces on tape on a 178mm reel.
SP = 50 pieces on tape in a plastic box.
Contact Bussmann if other package quantities are required.
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000 VAC, 75-1500 VDC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 314-527-1270 for more information.
Electrical Characteristics
Typ. Resistance
Max. Power Dissipation
Part Number
Current Rating
@ ² 10% Rated
@ 125% of Rated Current
(xx=Package Code)
XX/6125T-250mA
XX/6125T-500mA
XX/6125T-1A
(Amperes)
Marking
B.25
Current (Ohms)
(Milliwatts)
500
.25
.5
1
4.5
B0.5
1.0
500
B1A
0.25
0.10
0.06
0.04
0.03
0.02
500
XX/6125T-1.5A
XX/6125T-2A
1.5
2
B1.5
500
B2A
500
XX/6125T-3A
3
B3A
1000
1200
1200
XX/6125T-4A
4
B4A
XX/6125T-5A
5
B5A
General Notes:
1. Device designed to carry 125% of rated current for one hour minimum. An operating current of 80% or less of rated current is recommended, with further derating required at elevated
ambient temperatures.
2. All measurements made at 23 ± 3°C ambient temperature with the device mounted on a suitable circuit board trace.
Form No. 6125T
Page 1 of 2
12-16-98
BIF Doc #3007
SB98107 Rev. A