FUSES
/ SICHERUNGEN
Resettable fuses
Wire leaded
PTC-Fuses
Type PFRA
Cured, flame retardant epoxy
Polymer insulating material
meets UL 94V-0
requirements
Bulk packaging, tape and
reel and Ammo-Pack avai-
lable on most models
Agency recognition:
**UL, CSA, TÜV
Time to trip
(s)
Typical Part Marking
PFRA.030–900
Layout may vary
Manufacturer’s
Trademark
RA250
6180T
PFRA
Typical Time to Trip at 23 ˚C
PFR
A
PFR .017
A
PFR .020
A
PFR .025
A
PFR .030
A
PFR .040
A
PFR .050
A
PFR .065
A
PFR .075
A
PFR .090
-0- A.09
00 0
PFR 9
A
PFR .110
A
PFR .135
A
PFR .160
A
PFR .185
A
250 .250
-0 ,
PFR -010
A
PFR .300
A
PFR .400
A
PFR .500
A
PFR .600
A.7
PFR 00
A
PFR .800
PFR A.900
A.1
100
.01
0
100
10
1
0.1
0.01
0.001
0.1
1
10
100
Part identification
Fault current
(A)
Lot No (T = Taiwan)
Package
1
A
E
A
PFR
A
Date Code (Last Digit of Year and Julian Date)
2
E
Typical Part Marking
PFRA.010–025
Layout may vary
Manufacturer’s
Trademark
RA250
8H
D
B
B
Part identification
D
50
75
100
Date code week 1 of 1998 = 8 A (year and week)
week 27 of 1998 = A 8 (week and year)
C
C
Kinked lead options available for board standoff
**
PFRA.010–050 rated at 30 V
**
Applications
Almost anywhere there is a
low voltage power supply
and a load to be protected,
including:
• Computers and peripherals
• Transformer for toys
• Motors/fans
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
Mechanical Shock
/ Mechanischer Schock
–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-202, Method 213,
No resistance change
Condition
1
(100 g, 6
sec.)
MIL-STD-202, Method 215
No change
MIL-STD-883C, Method 2007.1,
No change
Condition A
Solvent Resistance
/ Lösungsmittel-Beständigkeit
Vibration
*) MIL-STD-202F, Method 107G
Test Procedures And Requirements For Model PFRA 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
At spezified current V
max
, 23 °C
/ unter spez. Strom
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
www.schurter.com
23
FUSES
/ SICHERUNGEN
FUSES
/ SICHERUNGEN
Resettable fuses
Resettable fuses
Electrical Characteristics
Type
/ Typ
V
max
I
max
I
hold
I
trip
Initial
Resistance
/
1 Hour (R1) Post-
Trip Resistance
/
Max. Time
to trip at 23 °C
/
PFRA
PFRA
Tripped Power
Dissipation
Amperes
at/
23 °C
at
V
60
60
60
60
60
60
60
60
60
60
30
30
30
30
30
30
30
30
30
30
30
30
30
30
16
A
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
100
Hold
0.10
0.17
0.20
0.25
0.30
0.40
0.50
0.65
0.75
0.90
0.90
1.10
1.35
1.60
1.85
2.50
2.50
3.00
4.00
5.00
6.00
7.00
8.00
9.00
11.00
Trip
0.20
0.34
0.40
0.50
0.60
0.80
1.00
1.30
1.50
1.80
1.80
2.20
2.70
3.20
3.70
5.00
5.00
6.00
8.00
10.00
12.00
14.00
16.00
18.00
22.00
Ohms at 23 °C
min.
2.50
3.30
1.50
1.00
0.76
0.52
0.41
0.27
0.18
0.14
0.07
0.10
0.065
0.055
0.04
0.025
0.020
0.02
0.01
0.01
0.005
0.005
0.005
0.005
0.003
max.
4.50
5.21
2.84
1.95
1.36
0.86
0.77
0.48
0.40
0.31
0.12
0.18
0.115
0.105
0.07
0.048
0.05
0.05
0.03
0.03
0.02
0.02
0.02
0.01
0.01
Ohms at 23 °C
R
1 max.
7.50
8.00
4.40
3.00
2.10
1.29
1.17
0.72
0.60
0.47
0.22
0.27
0.17
0.15
0.11
0.07
0.08
0.08
0.05
0.05
0.04
0.03
0.03
0.02
0.014
Seconds at 23 °C/
Watts at 23 °C
PFRA.010.X
PFRA.017.X
PFRA.020.X
PFRA.025.X
PFRA.030.X
PFRA.040.X
PFRA.050.X
PFRA.065.X
PFRA.075.X
PFRA.090.X
PFRA.090.X.009
PFRA.110.X
PFRA.135.X
PFRA.160.X
PFRA.185.X
PFRA.250.X
PFRA.250.X.010
PFRA.300.X
PFRA.400.X
PFRA.500
PFRA.600
PFRA.700
PFRA.800
PFRA.900
PFRA.1100
Packaging
Bulk
/ Lose:
(leave.X space)
4.0
3.0
2.2
2.5
3.0
3.8
4.0
5.3
6.3
7.2
5.9
6.6
7.3
8.0
8.7
10.3
10.3
10.8
12.7
14.5
16.0
17.5
18.8
20.0
20.0
0.38
0.48
0.40
0.45
0.50
0.55
0.75
0.90
0.90
1.00
0.60
0.70
0.80
0.90
1.00
1.20
1.20
2.00
2.50
3.00
3.50
3.80
4.00
4.20
4.50
500
per bag
PFRA.010–PFRA.160 –12.7 mm device pitch = 3000
pcs. per reel
;
PFRA.185–PFRA.400 – 25.4 mm device pitch = 1500
pcs. per reel
PFRA.090.X.009 & PFR.A250.X.010 = 3000
pcs. per reel
PFRA.010–PFRA.160 – 12.7mm device pitch = 2000
pcs. per reel
;
PFRA.185–PFRA.400 – 25.4mm device pitch = 1000
pcs. per reel
;
PFRA.090.X.009 & PFRA.250.X.010 = 2000
pcs. per reel
Tape and reel
/ Gegurtet:
X=.2
Ammo Pack
/ Ammo-Verp.:
X=.3
Dimensions
A
max.
7.4
7.4
7.4
7.4
7.4
7.4
7.9
9.7
10.4
11.7
7.4
8.9
8.9
10.2
12.0
12.0
12.0
12.0
14.4
17.4
19.3
22.1
24.2
24.2
24.2
B
max.
12.7
12.7
12.7
12.7
13.4
13.7
13.7
15.2
16.0
16.7
12.2
14.0
18.9
16.8
18.4
18.3
18.3
18.3
24.8
24.9
31.9
29.8
32.9
32.9
32.9
C
nominal
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.9
5.1
5.1
10.2
10.2
10.2
10.2
10.2
10.2
Tol. ±
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
D
min.
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
E
max.
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.0
3.0
3.0
3.0
3.0
3.0
3.1
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
Type
/ Typ
PFRA.010.X
PFRA.017.X
PFRA.020.X
PFRA.025.X
PFRA.030.X
PFRA.040.X
PFRA.050.X
PFRA.065.X
PFRA.075.X
PFRA.090.X
PFRA.090.X.009
PFRA.110.X
PFRA.135.X
PFRA.160.X
PFRA.185.X
PFRA.250.X
PFRA.250.X.010
PFRA.300.X
PFRA.400.X
PFRA.500
PFRA.600
PFRA.700
PFRA.800
PFRA.900
PFRA.1100
Style
/
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
2
2
2
2
2
2
2
2
2
2
Lead
/
0.51
dia./
Ø
0.51
dia./
Ø
0.51
dia./
Ø
0.51
dia./
Ø
0.51
dia./
Ø
0.51
dia./
Ø
0.51
dia./
Ø
0.51
dia./
Ø
0.51
dia./
Ø
0.51
dia./
Ø
0.51
dia./
Ø
0.51
dia./
Ø
0.51
dia./
Ø
0.51
dia./
Ø
0.51
dia./
Ø
0.81
dia./
Ø
0.51
dia./
Ø
0.81
dia./
Ø
0.81
dia./
Ø
0.81
dia./
Ø
0.81
dia./
Ø
0.81
dia./
Ø
0.81
dia./
Ø
0.81
dia./
Ø
0.81
dia./
Ø
Material
Sn/NiCu
Sn/NiCu
Sn/CuFe
Sn/CuFe
Sn/CuFe
Sn/CuFe
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
24
www.schurter.com
FUSES
/ SICHERUNGEN
Resettable fuses
Thermal Derating Chart-I
hold
(Amps)
Type
/ Typ
PFRA.010.X
PFRA.017.X
PFRA.020.X
PFRA.025.X
PFRA.030.X
PFRA.040.X
PFRA.050.X
PFRA.065.X
PFRA.075.X
PFRA.090.X
PFRA.090.X.009
PFRA.110.X
PFRA.135.X
PFRA.160.X
PFRA.185.X
PFRA.250.X
PFRA.250.X.010
PFRA.300.X
PFRA.400.X
PFRA.500
PFRA.600
PFRA.700
PFRA.800
PFRA.900
PFRA.1100
Ambient Operating Temperature
–40 ˚C
–20 ˚C
0 ˚C
0.16
0.14
0.12
0.26
0.23
0.20
0.31
0.27
0.24
0.39
0.34
0.30
0.47
0.41
0.36
0.62
0.54
0.48
0.78
0.68
0.60
1.01
0.88
0.77
1.16
1.02
0.89
1.40
1.22
1.07
1.40
1.22
1.07
1.60
1.43
1.27
1.96
1.76
1.55
2.32
2.08
1.84
2.68
2.41
2.13
3.63
3.25
2.88
3.63
3.25
2.88
4.35
3.90
3.45
5.80
5.20
4.60
7.25
6.50
5.75
8.70
7.80
6.90
10.15
9.10
8.05
11.60
10.40
9.20
13.05
11.70
10.35
16.10
14.60
13.10
23 ˚C
0.10
0.17
0.20
0.25
0.30
0.40
0.50
0.65
0.75
0.90
0.90
1.10
1.35
1.60
1.85
2.50
2.50
3.00
4.00
5.00
6.00
7.00
8.00
9.00
11.00
40 ˚C
0.08
0.14
0.16
0.20
0.24
0.32
0.41
0.53
0.61
0.73
0.73
0.91
1.12
1.33
1.54
2.08
2.08
2.49
3.32
4.15
4.98
5.81
6.64
7.47
9.40
50 ˚C
0.07
0.12
0.14
0.18
0.22
0.29
0.36
0.47
0.54
0.65
0.65
0.85
1.04
1.23
1.42
1.93
1.93
2.31
3.08
3.85
4.62
5.39
6.16
6.39
8.80
60 ˚C
0.06
0.11
0.13
0.16
0.19
0.25
0.32
0.41
0.47
0.57
0.57
0.75
0.92
1.09
1.26
1.70
1.70
2.04
2.72
3.40
4.08
4.76
5.44
6.12
7.80
70 ˚C
0.05
0.09
0.11
0.14
0.16
0.22
0.27
0.35
0.41
0.49
0.49
0.67
0.82
0.98
1.13
1.53
1.53
1.83
2.44
3.05
3.66
4.72
4.88
5.49
6.90
PFRA
85 ˚C
0.04
0.07
0.08
0.10
0.12
0.16
0.20
0.26
0.30
0.36
0.36
0.57
0.70
0.83
0.96
1.30
1.30
1.56
2.08
2.60
3.12
3.64
4.16
4.68
5.20
How To Order
PF
PTC-Fuse
Style
RA =
Radial Leaded Component
Hold Current, I
hold
010-1100 (100 mA–11,0 A)
Packaging Options
- =
Bulk Packaging
.2 =
Tape and Reel*
.3 =
Ammo Pack*
*Packaged per EI486-B
Note:
Add designator “009” or “010” after Packaging Option Code
to specify Models PFRA.090.009 or
PFRA.250.010.
RA . XXX . X
www.schurter.com
25
Embedded System
京公网安备 11010802033920号
EEWORLD
