PRODUCT: 1206SFF Family
Surface Mount Fuse
Fast Acting
DOCUMENT: SCD27594
REV LETTER: B
REV DATE: JULY 26, 2016
PAGE NO.: 1 OF 3
Specification Status: Released
Max Electrical Rating at 25°C
Max Voltage: 0.5A-2A 63VDC, 2.5A-5A 32VDC,
6A-8A 24VDC
Max Interrupt Current at Rated Voltage:
50A for 0.5A-3A
45A for 4A-8A
Termination Material: Silver, Nickel, Tin
Fuse Element: Silver
Body Material: Glass Ceramic
Clear Time Characteristics
% of
current
rating
100%
250%
400%
A
Clear time at 25°C
4 hours min.
5 seconds max.
0.05 seconds max.
Part Number
1206SFF050F/63
1206SFF075F/63
1206SFF100F/63
1206SFF150F/63
1206SFF175F/63
1206SFF200F/63
1206SFF250F/32
1206SFF300F/32
1206SFF400F/32
1206SFF500F/32
1206SFF600F/24
1206SFF700F/24
1206SFF800F/24
mm:
in:
C
D
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
3.00
0.118
3.40
0.134
0.90
0.035
1.30
0.051
0.26
0.010
0.76
0.030
1.40
0.055
1.80
0.071
Current Rating (A)
0.5
0.75
1.0
1.5
1.75
2.0
2.5
3.0
4.0
5.0
6.0
7.0
8.0
Dimensions
B
Voltage Rating (VDC)
63
63
63
63
63
63
32
32
32
32
24
24
24
Nominal Cold DCR (Ω)*
0.730
0.513
0.220
0.120
0.100
0.050
0.035
0.031
0.022
0.015
0.013
0.011
0.008
* Measured at 10% of rated current and 25°C
Agency Recognition:
Precedence:
Effectivity:
UL E197536
This specification takes precedence over documents referenced herein.
Reference documents shall be the issue in effect on the date of invitation for bid.
© 2016 Littelfuse,Inc
Specifications are subject to change without notice.
Revised July 26, 2016
littelfuse.com
PRODUCT: 1206SFF Family
Surface Mount Fuse
Fast Acting
Materials Information
ROHS Compliant
ELV Compliant
DOCUMENT: SCD27594
REV LETTER: B
REV DATE: JULY 26, 2016
PAGE NO.: 2 OF 3
Halogen Free*
HF
* Halogen Free refers to: Br≤900ppm, Cl≤900ppm, Br+Cl≤1500ppm
7.0A
8.0A
6.0A
5.0A
4.0A
3.0A
2.5A
2.0A
1.75A
1.5A
1.0A
0.75A
0.5A
Average Clear-Time Curves
10
Clear-Time (s)
1
0.1
0.01
0.001
0.0001
0.1
1
10
100
Current (A)
© 2016 Littelfuse,Inc
Specifications are subject to change without notice.
Revised July 26, 2016
littelfuse.com
Surface Mount Fuse
Fast Acting
PRODUCT: 1206SFF Family
DOCUMENT: SCD27594
REV LETTER: B
REV DATE: JULY 26, 2016
PAGE NO.: 3 OF 3
Nominal I² t vs t Curves
10000
8.0A
7.0A
6.0A
5.0A
1000
4.0A
3.0A
2.5A
2.0A
1.75A
100
1.5A
1.0A
0.75A
0.5A
I2 t (A2s)
10
1
0.1
0.01
0.001
0.0001
0.0001
0.001
0.01
0.1
1
10
Time (s)
Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical,
life-saving, life-sustaining, nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or
lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable
Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in
applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly
intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and
Conditions of Sale, unless otherwise agreed by Littelfuse.
© 2016 Littelfuse,Inc
Specifications are subject to change without notice.
Revised July 26, 2016
littelfuse.com
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