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Schurter, Inc. Phone 707-778-6311 Fax 707- 778-6401 E-mail info@schurterinc.com Website http://www.schurterinc.com
121
PFLT Polymeric PTC Resettable Fuse - Axial Leaded
Typical Time to Trip at 23C
NEW
Fully compatible with current
industry standards
Weldable nickel terminals
Very low internal resistance
Applications: Any application that requires
extra protection at elevated ambient
temperatures, which the 100C trip
temperature provides, including rechargeable
battery pack protection, cellular phones,
laptop computers
Approvals:
UL
recognition, file #E172175
CSA
acceptance, file #CA702083
TV
certification, file #R9872200
Typical Part Marking
Represents total content. Layout may vary.
Technical Data
Operating/Storage Temperature
-40°C to +85°C
Maximum Device Surface Temperature
in Tripped State
125°C
Passive Aging
+85°C, 1000 hours
±5% typical resistance change
Humidity Aging
+85°C, 85% R.H. 1000 hours
±5% typical resistance change
Thermal Shock
+125°C/-40°C 10 times
±10% typical resistance change
Vibration
MIL-STD-883C, Method 2007.1,
No change
Condition A
Test Procedures And Requirements
Test
Test Conditions
Accept/Reject Criteria
Visual/Mech.
Verify dimensions and materials
Per PF physical description
Resistance
In still air @ 23°C
Rmin
≤ R ≤ Rmax
Time to Trip
At specified current, 23°C
T
≤ max. time to trip (seconds)
Hold Current
30 min. at Ihold
No trip
Trip Cycle Life
Vmax, Imax, 100 cycles
No arcing or burning
Trip Endurance
Vmax, 48 hours
No arcing or burning
A
B
C
D
F
Model
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Package Style
PFLT.100.S
20.9
23.1
4.9
5.2
0.6
1.0
4.1
5.5
3.9
4.1
S
PFLT.180
24.0
26.0
4.9
5.2
0.6
1.0
4.1
5.5
3.9
4.1
Std.
PFLT.180.S
24.0
26.0
4.9
5.2
0.6
1.0
4.1
5.5
3.9
4.1
S
PFLT.190
21.3
23.4
10.2
11.0
0.5
1.1
5.0
7.6
4.8
5.4
Std.
PFLT.260
24.0
26.0
10.8
11.9
0.6
1.0
5.0
7.0
5.9
6.1
Std.
PFLT.300
28.4
31.8
13.0
13.5
0.5
1.1
6.3
8.9
6.0
6.6
Std.
PFLT.340
24.0
26.0
14.8
15.9
0.6
1.0
4.0
5.0
5.9
6.1
Std.
Product Dimensions
DIMENSIONS = MM
MANUFACTURER'S
TRADEMARK
PART
IDENTIFICATION
LT180
F
B
D
A
C
F
B
SLIT
0.5 x 4.0
NOM.
D
A
C
Package 1
Package 2
Standard Package
“S” Package
PFLT models offer trip temperatures lower than PFST models for
extra protection at elevated temperatures.
0.001
1
10
100
1
10
Fault Current (Amps)
T
ime
to
T
rip
(Seconds)
PFL
T.100.S
PFL
T.180
PFL
T.190
PFL
T.260
PFL
T.300
PFL
T.340
LT19
0