FUSES
/ SICHERUNGEN
Resettable fuses
Axial leaded
PTC-Fuses
Type PFLT
Fully compatible with cur-
rent industry standards
Weldable nickel terminals
Very low internal resistance
Agency recognition:
UL, CSA, TÜV (pending)
p
1
10
PFLT
Typical Time to Trip at 23 ˚C
0 .S
50
75
100
Time to trip
(s)
0.001
1
10
100
Fault current
(A)
Applications
Any application that requires
extra protection at elevated am-
bient temperatures, which the
100 °C trip temperature provides,
including rechargeable battery
pack protection,cellular phones,
laptop computers
Standard Style
/ Standard-Ausführung
A
“S” Style
/ «S»-Ausführung
A
Typical Part Marking
Layout may vary
SLIT
0.5 x 4.0
NOM.
PFL
T
PFL .180
T
PFL .190
T.
PFL 260
T.
PFL 300
T.3
40
Part identification
LT180
7144T
B
F
F
B
Manufacturer’s
Trademark
D
D
C
D
D
C
Date Code (Last
Digit of Year and
Julian Date)
PFL
T.1
0
Lot No (T=Taiwan)
Environmental Characteristics
Operating/Storage Temperature
/ Einsatz/Lagertemp.
Maximum Device Surface Temperature in Tripped State
/
Passive Aging
/ passive Alterung
Humidity Aging
/ Feuchtigkeitsalterung
Thermal Shock
/*) Thermischer Schock
Vibration
*) MIL-STD-202F, Method 107G
–40 °C
to
+85 °C
125 °C
+85 °C, 1000
hours
/ Std.
±5%
typ. resist. change
+85 °C, 85% R.H. 1000
hours
/ Std.
±5%
typ. resist. change
+85 °C/–40 °C 10
times
/ Zyklen
±10%
typ. resist. change
MIL-STD-883C, Method 2007.1,
No change
Condition
A
Test Procedures And Requirements For Model PFLT Series
Test
/ Test
Test Conditions
/ Bedingungen
Visual/Mech.
/ visuell/mech.
Verify dimensions and materials
/ Kontrolle Abmess./Mat.
Resistance
/ Widerstand
In still air @ 23 °C
/ bei ruhiger Luft
Time to Trip
/ Trip-Zeit
5 times I
hold
, V
max
, 23 °C
/ 5xHaltestrom, V
max
, 23 °C
Hold Current
/ Haltestrom
30 min. at I
hold
/ bei Haltestrom
Trip Cycle Life
/ Trip-Zyklen
V
max
, I
max
, 100 cycles
/ Zyklen
Trip Endurance
/ Zeit im Tripzustand
V
max
, 48 hours
/ Stunden
Accept/Reject Criteria
Per PF physical description
R
min
≤
R
≤
R
max
T
≤
max.
time to trip
(sec.)
No trip
No arcing or burning
No arcing or burning
34
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FUSES
/ SICHERUNGEN
Resettable fuses
Type
/ Typ
U
max
I
max
I
hold
I
trip
Initial
Resistance
/
1 Hour (R1) Post-
Trip Resistance
/
Max. Time
to trip at 23 °C
/
PFLT
Tripped Power
Dissipation
PFLT.100.S
PFLT.180
PFLT.180.S
PFLT.190
PFLT.260
PFLT.300
PFLT.340
V
24
24
24
24
24
24
24
A
100
100
100
100
100
100
100
Amperes
/
Ampere
at 23 °C
Hold
Trip
1.0
2.5
1.8
3.8
1.8
3.8
1.9
4.2
2.6
5.2
3.0
6.3
3.4
6.8
Ohms at 23 °C
/
min.
0.070
0.040
0.040
0.030
0.025
0.015
0.016
max.
0.130
0.068
0.068
0.057
0.042
0.031
0.027
Ohms at 23 °C
/
R
1 max.
0.260
0.120
0.120
0.100
0.076
0.055
0.050
Amps
/
Seconds
/
max.
7.0
2.9
2.9
3.0
5.0
4.0
5.0
Watts at 23 °C
nom.
1.5
2.0
2.0
1.9
2.3
2.0
2.7
5
9
9
10
13
15
17
Packaging
All models packaged in bulk, 500 pieces each.
Packaged loose; optional slotted leads (.S) available for 1 A and 1.8 A ratings
Thermal Derating Chart - I
hold
(Amps)
Type
/ Typ
Ambient Operating Temperature
–40 ˚C
–20 ˚C
0 ˚C
23 ˚C
40 ˚C
50 ˚C
60 ˚C
70 ˚C
85 ˚C
PFLT.100.S
PFLT.180
PFLT.180.S
PFLT.190
PFLT.260
PFLT.300
PFLT.340
1.8
3.1
3.1
3.3
4.3
5.1
5.5
1.6
2.6
2.6
2.8
3.7
4.4
4.7
1.4
2.2
2.2
2.4
3.1
3.7
4.0
1.0
1.8
1.8
1.9
2.6
3.0
3.4
0.8
1.3
1.3
1.4
1.9
2.3
2.6
0.7
1.1
1.1
1.2
1.6
1.9
2.2
0.6
0.9
0.9
1.1
1.4
1.6
1.9
0.4
0.6
0.6
0.7
1.1
1.2
1.5
0.2
0.2
0.2
0.4
0.6
0.6
0.8
Dimensions
Type
/ Typ
PFLT.100S
PFLT.180
PFLT.180S
PFLT.190
PFLT.260
PFLT.300
PFLT.340
min.
20.9
24.0
24.0
21.3
24.0
28.4
24.0
A
max.
23.1
26.0
26.0
23.4
26.0
31.8
26.0
min.
4.9
4.9
4.9
10.2
10.8
13.0
14.8
B
max.
5.2
5.2
5.2
11.0
11.9
13.5
15.9
min.
0.6
0.6
0.6
0.5
0.6
0.5
0.6
C
max.
1.0
1.0
1.0
1.1
1.0
1.1
1.0
min.
4.1
4.1
4.1
5.0
5.0
6.3
4.0
D
max.
5.5
5.5
5.5
7.6
7.0
8.9
5.0
min.
3.9
3.9
3.9
4.8
5.9
6.0
5.9
F
max.
4.1
4.1
4.1
5.4
6.1
6.6
6.1
Package style
S
Std.
S
Std.
Std.
Std.
Std.
Dimensions = mm
How To Order
PF
PTC-Fuse
Style
LT =
Low temperature axial leaded
“strap” component
Hold Current, I
hold
100-340 (1.00 A - 3.40 A)
Slotted lead option
LT . xxx . x
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35
Analog electronics
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