Datasheet

Surface Mount Fuses
159 Fuse and Clip Series
159 Series Telelink® Fuse and Clip Assembly
RoHS
Description
The 159 Series product is a metal fuse clip with preinstalled Littelfuse 461 Series TeleLink® fuse. This fuse
and clip combination can be automatically installed in PC
Boards in one efficient manufacturing operation. It permits
quick and easy fuse replacement without exposing the PC
Board and other components to risks of rework solder heat
as required with direct surface mount fuses.
It meets UL 60950 power cross requirements and is
designed to allow compliance with Telcordia GR-1089CORE and TIA-968-A Surge Specifications. The product
provides coordinated protection with Littelfuse SIDACtor®
protection thyristors without series resistors.
Agency Approvals
AGENCY
Features
AGENCY FILE NUMBER
AMPERE RANGE
E14721
0.5A, 1.25A, 2.0A
Electrical Characteristics for Series
% of Ampere
Rating
Opening Time
100%
4 hours, Minimum
250%
1 sec., Minimum
120 secs., Maximum
Additional Information
Datasheet
Resources
Samples
• Offer low profile
easily-replaceable fuse
alternative compatible
with automated
PCB surface mount
equipment
• Provide coordinated
protection with Littelfuse
SIDACtor® protection
thyristor devices and
GDTs, without series
resistors
• Come supplied with
surge resistant Littelfuse
461 series TeleLink® SloBlo® fuse
• RoHS compliant and
Halogen Free
• Fuse designed to allow
compliance with Telcordia
GR-1089-CORE and TIA968-A (formerly FCC Part
68) Surge Specifications
• Clip fully compatible
with RoHS/lead-free
solder alloys and higher
temperature profiles
associated with lead-free
assembly
• Available in ratings of
0.5-2.0 Amperes
Applications
• Telecom equipment (POTS) applications such as
modems, answering machines, telephones, fax
machines, and security systems
• Network equipment, such as:
- SLIC interface portion of Fiber to the Curb (FTTC) and
Fiber to the Premises (FTTP)
- Non-Fiber SLIC interface for Central Office (CO)
locations and Remote Terminals (RT)
- xDSL applications such as ADSL, ADSL2+, VDSL, and
VDSL2+
- Ethernet 10/100/1000BaseT
- ISDN “U” interface
- Baystation T1/E1/J1, T3 (DS3) trunk cards
© 2015 Littelfuse, Inc.
Specifications
are subject
change recommended.
without notice.
Specifications are subject to change without notice.
Application
testing istostrongly
Revised: 05/20/15
Surface Mount Fuses
159 Fuse and Clip Series
Electrical Specifications by Item
Ampere
Rating
(A)
Amp Code
Max
Voltage Rating
(V)
0.50
.500
600
1.25
1.25
600
2.00
002.
600
Interrupting
Rating
Agency Approvals
Nominal Cold
Resistance
(Ohms)
Nominal Melting
I2t (A2sec)
0.560
0.8401
x
.1040
16.51
x
.0450
17.5
x
60 A @600 VAC
1
I t is calculated at 10 msecs. or less. I2t at 10 times rated current has a typical value of: 24 A2sec (2.0A), 22 A2sec (1.25A), 1.3 A2sec (0.5A).
1 2
• Typical inductance < 40nH up to 500 MHz.
• Resistance changes 0.5% for every °C.
• Resistance is measured at 10% rated current.
Temperature Re-rating Curve
2A
1.25A
100
.500A
Average Time Current Curves
TIME IN SECONDS
10
1
0.1
Note:
1. Re-rating depicted in this curve is in addition to the standard re-rating of 25% for
continuous operation.
0.01
0.001
0.1
Maximum Temperature Rise
Telecom Nano2® Fuse
Temperature
04611.25
≤82oC (180oF)
0461002
≤50oC (122oF)
1
10
100
1000
CURRENT IN AMPERES
TIA-968-A (formerly FCC part 68) Surge Waveforms
(fuse can not open during type B events)
Surge
Metallic A
Longitudinal A
Metallic B
Longitudinal B
Voltage (V)
800
1500
1000
1500
Waveform (µs)
10×560
10×160
9×720
9×720
For the type A events the 0.5 fuse will open, providing non-operational compliance. The 1.25 & 2.0 will
not open, providing for operational compliance with TIA-968-A type A surge events.
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 05/20/15
Current (A)
100
200
25
37.5
Repititions
1 ea. polarity
1 ea. polarity
1 ea. polarity
1 ea. polarity
Recommended Fuse
1.25
1.25
1.25
1.25
Surface Mount Fuses
159 Fuse and Clip Series
GR 1089 Inter-building requirements
GR 1089 1st level lighting surge inter-building
(Equipment under test can not be damaged and must
continue to operate properly)
Surge
1
Minimum Minimum Max.
Repetitions
Peak
Peak
Rise/Min.
Each
Voltage
Current
Decay
Polarity
(V)
(A)
(µs)
600
100
10/1000
25
Fuse
Choices
1.25, 2.0
2
1000
100
10/360
25
1.25, 2.0
3
1000
100
10/1000
25
1.25, 2.0
4
2500
500
2/10
10
1.25, 2.0
5
1000
25
10/360
5
0.5, 1.25, 2.0
GR 1089 2nd level lightning surge telecom port
(Equipment under test shall not become a fire,
fragmentation, or electrical safety hazard)
Surge
1
Alternative
Max.
Minimum
Minimum
Rise/Min.
Peak
Peak
Decay
Voltage
Current (A)
(µs)
(V)
5000
500
2/10
5000
500/8=625
Repetitions
Fuse
Each
Choices
Polarity
1
0.5, 1.25, 2.0
8/10
1
0.5, 1.25, 2.0
The 0.5 fuse will open during these test conditions. The 1.25 & 2.0 will not open thus
providing operational compliance.
If sufficient series resistance is used, then the 0.5 fuse may be used in test conditions 1-4.
GR 1089 AC power fault 1st level inter-building (fuse
not allowed to open)
Test
Vrms
1
2
50
100
200,400,
600
1000
Diagram
600
440
600
1000
3
4
5
6
7
8
9
Short
Primary
Fuse
Circuit
Hits Duration
Protector Choices
Current (A)
.33
1
15 min. removed 1.25, 2.0
.17
1
15 min. removed 1.25, 2.0
1
60
1 sec.
removed
1.25, 2.0
1
Diagram
0.5
2.2
3
5
60
60
1
5
1
1
1 sec.
5 secs.
30 secs.
2 secs.
1.1 secs.
0.4 sec.
operative
removed
removed
removed
removed
in place
1.25, 2.0
1.25, 2.0
1.25, 2.0
1.25, 2.0
1.25, 2.0
1.25, 2.0
GR 1089 AC power fault 2nd level (fuse can open but
must open in a safe and controlled manner)
Test
Circuite
1
2
3
4
5
Vrms
120,277
600
600
100-600
Diagram
Short
(A)
25
60
7
2.2
Diagram
Duration
Fuse
15 min.
5 secs.
5 secs.
15 min..
15 min.
0.5, 1.25, 2.0
0.5, 1.25, 2.0
0.5, 1.25, 2.0
0.5, 1.25, 2.0
0.5, 1.25, 2.0
Fuse must open before wiring simulator fuse (MDL 2.0).
UL60950 Requirements
UL 60950 (EN 60950, formerly UL 1950) Power Cross Test
(L=Longitudinal, M=Metallic)
Test
Number
L1
L2
L3
L4
L5
M1
M2
M3
M4
Voltage (V) Current (A)
600
600
600
200
120
600
600
600
600
40
7
2.2
2.2
25
40
7
2.2
2.2
Time
1.5 secs.
5 secs.
30 min.
30 min.
30 min.
1.5 secs.
5 secs.
30 min.
30 min.
Fuse
Choices
0.5, 1.25, 2.0
0.5, 1.25, 2.0
0.5, 1.25, 2.0
0.5, 1.25, 2.0
0.5, 1.25, 2.0
0.5, 1.25, 2.0
0.5, 1.25, 2.0
0.5, 1.25, 2.0
0.5, 1.25, 2.0
Selection of test number depends on current limiting F fire enclosure/spacing of end product
• 26 AWG line cord removes L1/M1 test requirement
• L5 conducted only if product does not pass section 6.1.2
• L2,M2,L3,M3,L4,M4 conducted if not in a fire enclosure
Fuse must open before the wiring simulator fuse (MDL 2.0).
UL 60950 (EN 60950, formerly UL 1950) Impulse Test
and Steady-State Electric Strength Test
Test
Voltage
(V)
Current
(A)
Waveform
Repetitions
Fuse
Choices
For
handheld
units
2500
62.5
10×700ms + 10 w/60 0.5, 1.25,
secs. rest
2.0
Non
handheld
1500
37.5
10×700ms + 10 w/60 0.5, 1.25,
secs. rest
2.0
Impulse
Steady-State
For
handheld
units
1500
60Hz
0.5, 1.25,
2.0
Non
handheld
1000
60Hz
0.5, 1.25,
2.0
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 05/20/15
Surface Mount Fuses
159 Fuse and Clip Series
Soldering Parameters
Pb – free assembly
- Time (Min to Max) (ts)
60 – 120 seconds
Average Ramp-up Rate (Liquidus Temp
(TL) to peak)
3°C/second max.
TS(max) to TL - Ramp-up Rate
3°C/second max.
Reflow
- Temperature (TL) (Liquidus)
217°C
60 – 90 seconds
- Temperature (tL)
Peak Temperature (TP)
260+0/–5 °C
Time within 5°C of actual peak
Temperature (tp)
20 – 40 seconds
Ramp-down Rate
6°C/second max.
Time 25°C to peak Temperature (TP)
8 minutes max.
Do not exceed
260°C
Product Characteristics
Materials
Product Marking
Fuse Body: Ceramic
Fuse Caps/Terminals: Silver-plated Brass
Clip Base: Gold-plated
Clip Terminals: Nickel-plated
Brand Logo, Current Rating, 'T'
Insulation Resistance MIL-STD-202, Method 302, Test
condition A (10,000 ohms, minimum)
(after opening)
Operating
-55°C to 125°C with proper re-rating
Temperature
Humidity Test
85°C/ 85% RH, 1000 hours
Solderability
MIL-STD-202, Method 208/IPC EIA
J-STD-002, Test Condition A
Resistance to
Solvents
MIL-STD-202, Method 215 (3 solvent
types)
Thermal Shock
MIL-STD-202, Method 107, Test Condition
B3 (95 cycles -65°C to +125°C)
Mechanical Shock
MIL-STD-202, Method 213, Test
Condition I (100G’s peak for 6 msecs.)
Vibration
MIL-STD-202, Method 201, (10-55 Hz)
Moisture Resistance
MIL-STD-202, Methold 106, High
Humidity (90-98% RH), Heat (65°C)
Salt Spray/
Atmosphere
MIL-STD-202, Method 101, Test
Condition B (48 hours)
Terminal Attachment
MIL-STD-202, Method 211, Test
Condition A, 5 lbs applied to end caps
TL
tL
TS(max)
Ramp-down
Preheat
TS(min)
tS
25
time to peak temperature
(t 25ºC to peak)
Time
Part Numbering System
0159 1.25 M R
SERIES
AMP Code
Refer to Electrical
Characteristics table
Example:
0.5 amp product
is 0159 .500 MR
(1.25 amp shown)
QUANTITY Code
M = 1000 pcs
PACKAGING Code
R = Tape and Reel
Dimensions
10.90 [0.429]
10.10 [0.398]
3.12
[0.123]
LF
1.25 A
4.80 [0.189]
200°C
T
3.50 [0.138]
3.12 [0.123]
- Temperature Max (Ts(max))
Critical Zone
TL to TP
Ramp-up
1.70
[0.067]
3.00
[0.118]
4.80
[0.189]
4.80 [0.189]
150°C
4.00 [0.157]
Pre Heat
- Temperature Min (Ts(min))
tP
TP
Temperature
Reflow Condition
4.90 [0.193]
"A"
.004
"B"
Recommended Pad Layout
4.40
[0.173]
4.30
[0.169]
3.88
[0.153]
13.00
[0.512]
Packaging
Packaging Option
Packaging Specification
Quantity
Quantity & Packaging Code
24mm Tape and Reel
EIA RS-481-2 (IEC 286, part 3)
1000
MR
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 05/20/15