SCHURTER PFRX.250

PFRX
Resettable fuses
www.schurter.com/pg01_1
On phase-out, not recommended for new designs
T
U
O
E
S
A
PH
RX
1
018 10
0T
60.0 VDC · 1.1 - 3.75 A
Description
Applications
-PFRY is recommended as substitute
-Security and fire alarm systems
-Loud speakers
-Power transformers
Standards
-UL 1434
-CSA C22.2 no. 0, TIL no. CA-3A
References
GeneralProductInformation
Time-Current Curves see last page
PackagingDetails
Approvals
-UL File Number: E172175
Weblinks
Approvals: http://www.schurter.com/approvals
RoHS: http://www.schurter.com/rohs
CHINA-RoHS: http://www.schurter.com/china-rohs
Stock-Check: https://sapportal.schurter.ch:8888/irj/portal/anonymous
Technical Data
V max
I max
I hold
Fastening
Allowable Operation Temp.
Material: Terminals
Weight
Storage Conditions
Product Marking
60.0 VDC
40 A
1.1 - 3.75 A
PCB,THT
-40 °C to 85 °C
Tin-Plated Copper
0.35 g
0 °C to 40 °C, max. 70% r.h.
, Type, I hold
Soldering Methods
Solderability
Resistance to Soldering Heat
Passing Aging
Humidity Aging
Thermal Shock
Vibration
Resistance to Solvents
Flammability
Wave
235 °C / 2 sec
260 °C / 10 sec
+85 °C, 1000 Hours -> +/- 5% Typical
Resistance Change
+85 °C, 85% r.h., 1000 Hours -> +/5% Typical Resistance Change
MIL-STD-202, Method 107 (+125 °C to
-55 °C, 10 Cycles) -> +/- 15% Typical
Resistance Change
MIL-STD-883C, Method 2007.1, Test
Condition A
MIL-STD-202, Methode 215
UL 94V-0
Dimensions
A
E
B
1.3
D
C
C
Stock-Check
Fuses
PFRX
Resettable fuses
www.schurter.com/pg01_1
Dimensions
Stock-Check
A max
[mm]
B max
[mm]
C min
[mm]
C max
[mm]
D min
[mm]
E max
[mm]
Ø Lead [mm]
Order Number
13
18
4.4
5.1
7.6
3.1
0.81
PFRX.110
14.5
19.6
4.4
5.1
7.6
3.1
0.81
PFRX.135
16.3
21.3
4.4
5.1
7.6
3.1
0.81
PFRX.160
17.8
22.9
4.4
5.1
7.6
3.1
0.81
PFRX.185
21.3
26.4
9.5
10.2
7.6
3.1
0.81
PFRX.250
24.9
30
9.5
10.2
7.6
3.1
0.81
PFRX.300
28.4
33.5
9.5
10.2
7.6
3.1
0.81
PFRX.375
Thermal Derating Chart Ihold [A]
Stock-Check
-40 °C
-20 °C
0 °C
23 °C
40 °C
50 °C
60 °C
70 °C
85 °C
Order Number
1.71
1.5
1.31
1.1
0.89
0.79
0.69
0.59
0.44
PFRX.110
2.09
1.84
1.61
1.35
1.09
0.97
0.85
0.73
0.54
PFRX.135
2.48
2.18
1.9
1.6
1.3
1.15
1.01
0.86
0.64
PFRX.160
2.87
2.52
2.2
1.85
1.5
1.33
1.17
1
0.74
PFRX.185
3.88
3.4
2.98
2.5
2.03
1.8
1.58
1.35
1
PFRX.250
4.65
4.08
3.57
3
2.43
2.16
1.89
1.62
1.2
PFRX.300
5.81
5.1
4.46
3.75
3.04
2.7
2.36
2.03
1.5
PFRX.375
Electrical Characteristics at 23 °C
Stock-Check
V max [VDC]
I max [A]
I hold [A]
I trip [A]
R initial min
[W]
R initial max
[W]
R 1hour max
[W]
Max Time to
trip [A]
Max Time to
Trip [s]
Tripped
Power Dissipation [W]
Order Number
60.0
40
1.1
2.2
0.15
0.25
0.38
5.5
8.2
1.50
PFRX.110
60.0
40
1.35
2.7
0.12
0.19
0.3
6.75
9.6
1.70
PFRX.135
60.0
40
1.6
3.2
0.09
0.14
0.22
8
11.4
1.90
PFRX.160
60.0
40
1.85
3.7
0.08
0.12
0.19
9.25
12.6
2.10
PFRX.185
60.0
40
2.5
5
0.05
0.08
0.13
12.5
15.6
2.50
PFRX.250
60.0
40
3
6
0.04
0.06
0.1
15
19.8
2.80
PFRX.300
60.0
40
3.75
7.5
0.03
0.05
0.08
18.75
24
3.20
PFRX.375
Packaging Unit PFRX.xxx Bulk (500 pcs.) PFRX.110.2 - PFRX.160.2 Taped 34 cm Reel (1500 pcs.) PFRX.185.2 Taped 34 cm Reel (1000 pcs.) Fuses
PFRX
Resettable fuses
www.schurter.com/pg01_1
Time-Current Curves
1000
PFRX.250
100
PFRX.300
PFRX.375
Time to Trip in Seconds
10
PFRX.110
PFRX.135
1
PFRX.160
PFRX.185
0.1
0.01
0.001
0.1
1
10
100
Fault Current in Amperes
The specifications, descriptions and illustrations indicated in this document are based
on
Fuses
current information. All content is subject to modifications anamendments.