436 Datasheet, PDF (1/1 Pages) Littelfuse – SMTelecom Fuse 436 Series

SURFACE MOUNT FUSES
This Part is being obsoleted. Please use the 461 series for
all future designs.
SMTelecom^® Fuse 436 Series
®
®
• Surface mount overcurrent protection from lightning and
power cross.
• Meets UL 1459/1950 power cross requirements stand alone.
• Ideal for use in telecommunication equipment including
modems, fax machines, desk top phones, answering
machines and line cards.
• UL recognized, with a 250 V operating voltage.
• Top side marking allows visual verification of ampere rating.
• Complies with Bellcore GR-1089-CORE and FCC 47 part
68 Surge Specifications.
ELECTRICAL CHARACTERISTICS:
% of
Ampere Rating
100%
Opening Time
4 Hours, Minimum
200%
5 Seconds, Min.; 30 Seconds, Max.
Short Circuit Capabilities:
UL 1459 / UL 1950 3rd. Edt.
40 Amperes @ 600 VAC
7 amperes @ 600 VAC
2.2 amperes @ 600 VAC
AGENCY APPROVALS: Recognized under the
Components Program of Underwriters Laboratories and
Certified by CSA .
AGENCY FILE NUMBERS: UL E10480, CSA LR 29862.
INTERRUPTING RATINGS:
10,000 amperes @ 125V
100 amperes @ 250V
ENVIRONMENTAL SPECIFICATIONS:
Operating Temperature Range: –55°C to +125°C
PHYSICAL SPECIFICATIONS:
Materials: Body: Melamine Substrate
Terminations: Copper/Nickel/Tin-Lead (95/5)
Soldering Parameters:
Reflow Solder — 250°C, 10 sec. maximum.
Wave Solder — Not recommended.
PACKAGING SPECIFICATIONS: 24mm Tape and Reel
per EIA-RS481-2 (IEC 286, part 3); 2,000 per reel, add
packaging suffix, PR.
PATENTED
ORDERING INFORMATION:
Catalog
Number
0436.750
0436 001.
0436 1.25
0436 01.5
0436 01.6
Ampere
Rating
(A)
3/4
1
1¹/4
1¹/2
1⁶/10
Voltage
Rating
(V)
250
250
250
250
250
Nominal
Cold
Resistance (Ω)
0.850
0.475
0.305
0.210
0.165
Nominal
Melting I²t
(A² sec.)
1.143
2.606
3.658
5.921
13.500
PERFORMANCE CHARACTERISTICS:
Catalog
Number
FCC 47 Part 68
Longitudinal Surge Metallic Surge
10x160µSec.
10x560µSec.
(1500 V)
(800 V)
Bellcore GR-1089-CORE
First Level Lightning
10x1000µSec. 2x10µSec.
(1000 V)
(2500 V)
Repetitions
50
2
50
2
50
20
0436.750
82 A 88 A 29 A 32 A
22 A
225A
0436 001. 102 A 117 A 44 A 48 A
37 A
350A
0436 1.25 120 A 135 A 87 A 95 A
56 A
425A
0436 01.5 175 A 200 A 100 A 115 A
80 A
500A
0436 _{01.6 200 A 200 A 134 A 156 A}
100 A
500A
Reference Dimensions
436
3/4A
14.99 (.590")
PROTECTIVE
COATING
NICKEL/TIN-LEAD PLATED
COPPER TERMINATIONS
5.08 (.200")
1.27
(.050")
2.41 (.095")
13.21
MAX.
(.520")
.64 (.025") REF.
4.19 (.165")
Recommended Pad Layout:
10.29
(.405")
4.57 (.180")
2.92
(.115")
Average Time Current Curves
100
10
1
0.1
0.01
0.001
0.3
1
10
100
CURRENT IN AMPERES
38