FUSES
/ SICHERUNGEN
PFLR
Resettable fuses
www.schurter.com
28
Axial leaded
PTC-Fuses
Type PFLR
Fully compatible with current
industry standards
Weldable nickel terminals
Very low internal resistance
Available in leadfree versions
Agency recognition:
UL, CSA, TÜV
Typical Time to Trip at 23 ˚C
Time to trip
(s)
Dimensions
Applications
• Any application that requires
protection at low resistances
• Rechargeable battery packs
• Cellular phones
• Laptop computers
Test Procedures And Requirements For Model PFLR Series
Test
/ Test
Test Conditions
/ Bedingungen
Accept/Reject Criteria
Visual/Mech.
/ visuell/mech.
Verify dimensions and materials
/ Kontrolle Abmess./Mat.
Per MF physical description
Resistance
/ Widerstand
In still air @ 23°C
/ bei ruhiger Luft 23 °C
R
min
≤
R
≤
R
max
Time to Trip
/ Trip-Zeit
At specified current, V
max
23 °C
/ Bei entsprech. Strom
T
≤
max.
time to trip
(sec.
)
Hold Current
/ Haltestrom
30 min. at I
hold
/ bei Haltestrom
No trip
Trip Cycle Life
/ Trip-Zyklen
V
max
, I
max
, 100 cycles
/ Zyklen
No arcing or burning
Trip Endurance
/ Zeit im Tripzustand
V
max
, 48 hours
/ Stunden
No arcing or burning
Environmental Characteristics
Operating/Storage Temperature
/ Einsatz/Lagertemp.
-45 °C
to
+85 °C
Maximum Device Surface Temperature in Tripped State
/
125 °C
Passive Aging
/ passive Alterung
+70 °C, 1000
hours
/ Std.
± 10%
typ. resist. change
Humidity Aging
/ Feuchtigkeitsalterung
+85 °C, 85% R.H. 7
days
/ Tage
± 10%
typ. resist. change
Vibration
MIL-STD-883C,
No change
Condition A
Typical Part Marking
Layout may vary
Manufacturer’s Trademark
Lot No. (T = Taiwan, S = Xiamen)
Date code (First digit = Last digit of
year; next three digits = day of ye/
50 75 100
Fault current
(A)
1 10 100
100
10
1
01
PFLR.260
PFLR.190
PFLR.450
PFLR.730
PFLR.600
PFLR.380
PFLR.550
Standard Style
“S” Style
A
A
SLIT 0.5 x 4.0
Nominal
(.020) (.157)
B
F
D
D
D
C
A
A
B
F
D
D
C
Part identification
FUSES
/ SICHERUNGEN
PFLR
Resettable fuses
www.schurter.com
29
Electrical Characteristics
Type
/ Typ
A
B
C
D
F
Pkg.
min.
max.
min.
max.
min.
max.
min.
max.
min.
max.
Style
PFLR.190
19.9
22.1
4.9
5.2
0.6
1.0
5.5
7.5
3.9
4.1
Std.
(0.783)
(0.870)
(0.193)
(0.205)
(0.024)
(0.039)
(0.217)
(0.295)
(0.154)
(0.161)
PFLR.190.S
19.9
22.1
4.9
5.2
0.6
1.0
5.5
7.5
3.9
4.1
S
(0.783)
(0.870)
(0.193)
(0.205)
(0.024)
(0.039)
(0.217)
(0.295)
(0.154)
(0.161)
PFLR.260
20.9
23.1
4.9
5.2
0.6
1.0
4.1
5.5
3.9
4.1
Std.
(0.823)
(0.909)
(0.193)
(0.205)
(0.024)
(0.039)
(0.161)
(0.217)
(0.154)
(0.161)
PFLR.260.S
20.9
23.1
4.9
5.2
0.6
1.0
4.1
5.5
3.9
4.1
S
(0.823)
(0.909)
(0.193)
(0.205)
(0.024)
(0.039)
(0.161)
(0.217)
(0.154)
(0.161)
PFLR.380
24.0
26.0
6.9
7.5
0.6
1.0
4.1
5.5
4.9
5.1
Std.
(0.945)
(1.024)
(0.272)
(0.295)
(0.024)
(0.039)
(0.161)
(0.217)
(0.193)
(0.201)
PFLR.450
24.0
26.0
9.9
10.5
0.6
1.0
5.3
6.7
5.9
6.1
Std.
(0.945)
(1.024)
(0.390)
(0.414)
(0.024)
(0.039)
(0.209)
(0.264)
(0.232)
(0.240)
PFLR.550
35.0
37.0
6.9
7.5
0.6
1.0
5.3
6.7
4.9
5.1
Std.
(1.378)
(1.457)
(0.272)
(0.295)
(0.024)
(0.039)
(0.209)
(0.264)
(0.193)
(0.201)
PFLR.600
24.0
26.0
13.9
14.5
0.6
1.0
4.1
5.5
5.9
6.1
Std.
(0.945)
(1.024)
(0.548)
(0.571)
(0.024)
(0.039)
(0.161)
(0.217)
(0.232)
(0.240)
*PFLR.730
26.0
29.1
13.9
14.5
0.6
1.0
4.1
5.5
5.9
6.1
Std.
(1.024)
(1.146)
(0.548)
(0.571)
(0.024)
(0.039)
(0.161)
(0.217)
(0.232)
(0.240)
Dimensions
How To Order
PF LR .xxx .x
PTC-Fuse
Series
LR = Axial Leaded “Strap” Component
Hold Current, I
hold
190-730 (1.90-7.30 Amps)
Lead Option
S =
Slotted Lead Option
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
PFLR.190
2.8/5.7
2.5/5.1
2.3/4.7
1.9/3.9
1.6/3.3
1.5/3.1
1.4/2.9
1.2/2.5
1.0/2.1
PFLR.190.S
2.8/5.7
2.5/5.1
2.3/4.7
1.9/3.9
1.6/3.3
1.5/3.1
1.4/2.9
1.2/2.5
1.0/2.1
PFLR.260
3.8/8.5
3.4/7.6
3.1/6.9
2.6/5.8
2.2/4.9
2.0/4.5
1.9/4.2
1.7/3.8
1.4/3.1
PFLR.260.S
3.8/8.5
3.4/7.6
3.1/6.9
2.6/5.8
2.2/4.9
2.0/4.5
1.9/4.2
1.7/3.8
1.4/3.1
PFLR.380
5.5/12.0
4.9/10.7
4.4/9.6
3.8/8.3
3.3/7.2
3.0/6.6
2.8/6.1
2.5/5.5
2.1/4.6
PFLR.450
6.5/12.9/
5.8/11.5
5.3/10.5
4.5/8.9
3.9/7.7
3.6/7.1
3.3/6.5
2.9/5.7
2.5/4.9
PFLR.550
8.0/15.3
7.1/13.6
6.2/11.8
5.5/10.5
4.7/9.0
4.3/8.2
4.0/7.6
3.6/6.9
3.0/5.7
PFLR.600
8.7/17.0
7.8/15.2
7.1/13.8
6.0/11.7
5.2/10.1
4.7/9.2
4.4/8.6
3.9/7.6
3.3/6.4
*PFLR.730
10.6/20.5
9.5/18.3
8.6/16.6
7.3/14.1
6.3/12.2
5.7/11.0
5.4/10.4
4.7/9.1
4.0/7.7
Dimensions in mm/inches
Type
/ Typ
V
max
I
max
I
hold
I
trip
Initial Resistance
/
One Hour Max. Time to trip
/
Tripped
Volts
Amps
Post-Trip
Power
Resistance
/
Dissipation
/
Amperes
Ohms
Ohms
Amperes
Seconds
Watts
at
/ bei
23 °C
at
/ bei
23 °C
at
/ bei
23 °C
at
/ bei
23 °C
at
/ bei
23 °C
at
/ bei
23 °C
Hold
Trip
Min.
Max.
Max.
PFLR.190
15
100
1.90
3.90
0.039
0.072
0.102
9.5
5.0
1.2
PFLR.190.S
15
100
1.90
3.90
0.039
0.072
0.102
9.5
5.0
1.2
PFLR.260
15
100
2.60
5.80
0.020
0.042
0.063
13.0
5.0
1.3
PFLR.260.S
15
100
2.60
5.80
0.020
0.042
0.063
13.0
5.0
2.5
PFLR.380
15
100
3.80
8.30
0.013
0.026
0.037
19.0
5.0
2.5
PFLR.450
10
100
4.50
8.90
0.011
0.020
0.028
22.5
5.0
2.5
PFLR.550
10
100
5.50
10.50
0.009
0.019
0.022
27.5
5.0
2.8
PFLR.600
10
100
6.00
11.70
0.007
0.014
0.016
30.0
5.0
2.8
*PFLR.730
10
100
7.3
14.1
0.006
0.012
0.015
30.0
5.0
3.3
Packaging
All models packaged in bulk, 500 pieces each.
Packaged loose; optional slotted leads (.S) available for 1.90 A and
2.60 A ratings
*Preliminary
*Preliminary
*Preliminary