PolySwitch
®
Resettable PPTCs
Radial Leaded > RUEF Series
RUEF Series
Description
RoHS
Littelfuse PolySwitch radial-leaded devices represent the
most comprehensive and complete set of PPTC products
available in the industry today. RUEF series is for balance
of voltage rating (30V) and hold current (up to 9A).
Features
• Resettable and single-use overcurrent devices
• Wide range of form factor and termination methods
• Devices compatible with high-volume electronics
assembly
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E74889
78165
72161784
• RoHS compliant, Lead-Free and Halogen-Free
Applications
• Satellite video receivers
• Industrial controls
• Transformers
• Computer motherboards
• Modems
• USB hubs, ports and
peripherals
• IEEE 1394 ports
Samples
• CD-ROMs
• Game machines
• Battery packs
• Phones
• Fax machines
• Analog and digital line cards
• Printers
Additional Information
Datasheet
Resources
Electrical Characteristics
Part
Number
I
H
(A)
0.90
1.10
1.35
1.60
1.85
2.50
3.00
4.00
5.00
6.00
7
.00
8.00
9.00
I
T
(A)
1.80
2.20
2.70
3.20
3.70
5.00
6.00
8.00
10.00
12.00
14.00
16.00
18.00
(V
DC
)
30
30
30
30
30
30
30
30
30
30
30
30
30
V
MAX
(V
AC RMS
)
30
30
30
30
30
30
30
30
30
30
30
30
30
I
MAX
(DC
ADC
)
100
100
100
100
100
100
100
100
100
100
100
100
100
(AC
ARMS
)
70
70
70
70
70
70
70
70
70
70
70
70
70
P
D Typ
(W)
0.60
0.70
0.80
0.90
1.00
1.20
2.00
2.50
3.00
3.50
3.80
4.00
4.20
RUEF – 30V
RUEF090
RUEF110
RUEF135
RUEF160
RUEF185
RUEF250
RUEF300
RUEF400
RUEF500
RUEF600
RUEF700
RUEF800
RUEF900
4.50
5.50
6.75
8.00
9.25
12.50
15.00
20.00
25.00
30.00
35.00
40.00
45.00
5.9
6.6
7
.3
8.0
8.7
10.3
10.8
12.7
14.5
16.0
17
.5
18.8
20.0
0.070
0.070
0.040
0.030
0.030
0.020
0.020
0.010
0.010
0.005
0.005
0.005
0.005
0.120
0.100
0.080
0.070
0.060
0.040
0.050
0.030
0.030
0.020
0.020
0.013
0.010
0.22
0.17
0.13
0.11
0.09
0.07
0.08
0.05
0.05
0.04
0.03
0.02
0.02
0.205/24
0.205/24
0.205/24
0.205/24
0.205/24
0.205/24
0.205/24
0.205/24
0.520/20
0.520/20
0.520/20
0.520/20
0.520/20
Max Time-to-trip
(A)
(s)
R
MIN
(Ω)
R
MAX
(Ω)
R
1MAX
(Ω)
Lead Size
(mm
2
/AWG)
Notes:
I
H
: Hold current: maximum current device will pass without interruption in 20°C still air.
I
T
: Trip current: minimum current that will switch the device from low resistance to
high resistance in 20°C still air.
V
MAX
: Maximum continuous voltage device can withstand without damage at rated current.
I
MAX
: Maximum fault current device can withstand without damage at rated voltage.
P
D
: Power dissipated from device when in the tripped state in 20°C still air.
R
MIN
: Minimum resistance of device as supplied at 20°C unless otherwise specified.
R
MAX
: Maximum resistance of device as supplied at 20°C unless otherwise specified.
R
1MAX
: Maximum resistance of device when measured one hour post reflow
(surface-mount device) or one hour post trip (radial-leaded device) at 20°C unless
otherwise specified.
* Electrical characteristics determined at 25°C.
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 10/22/18
PolySwitch
®
Resettable PTCs
Radial Leaded > RUEF Series
Temperature Rerating
Maximum Ambient Temperature
-40°C
-20°C
0°C
20°C
25°C
40°C
50°C
60°C
70°C
85°C
Hold Current (A)
RUEF – 30V
RUEF090
RUEF110
RUEF135
RUEF160
RUEF185
RUEF250
RUEF300
RUEF400
RUEF500
RUEF600
RUEF700
RUEF800
RUEF900
1.31
1.60
1.96
2.32
2.68
3.63
4.35
5.80
7
.25
8.70
10.15
11.60
13.05
1.17
1.43
1.76
2.08
2.41
3.25
3.90
5.20
6.50
7
.80
9.10
10.40
11.70
1.04
1.27
1.55
1.84
2.13
2.88
3.45
4.60
5.75
6.90
8.05
9.20
10.35
0.90
1.10
1.35
1.60
1.85
2.50
3.00
4.00
5.00
6.00
7
.00
8.00
9.00
0.87
1.07
1.31
1.55
1.79
2.43
2.91
3.88
4.85
5.82
6.79
7
.76
8.73
0.75
0.91
1.12
1.33
1.54
2.08
2.49
3.32
4.15
4.98
5.81
6.64
7
.47
0.69
0.85
1.04
1.23
1.42
1.93
2.31
3.08
3.85
4.62
5.39
6.16
6.93
0.61
0.75
0.92
1.09
1.26
1.70
2.04
2.72
3.40
4.08
4.76
5.44
6.12
0.55
0.67
0.82
0.98
1.13
1.53
1.83
2.44
3.05
3.66
4.27
4.88
5.49
0.47
0.57
0.70
0.83
0.96
1.30
1.56
2.08
2.60
3.12
3.64
4.16
4.68
Temperature Rerating Curve
200
% of Rated Hold and Trip Current
150
100
50
0
-40
-20
0
20
40
60
80
Ambient Temperature (˚C)
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 10/22/18
PolySwitch
®
Resettable PPTCs
Radial Leaded > RUEF Series
Typical Time-to-Trip Curves at 20°C
RUEF
A = RUEF090
B
C
D
E
F
G
=
=
=
=
=
=
RUEF110
RUEF135
RUEF160
RUEF185
RUEF250
RUEF300
100
H =
I
J
K
L
M
=
=
=
=
=
RUEF400
RUEF500
RUEF600
RUEF700
RUEF800
RUEF900
10
A B C
D E
F G
H
I J
K LM
Time-to-Trip (s)
1
M
L
K
J
I
H
G
F
E
D
1
10
0.1
0.01
A B
C
100
Fault Current (A)
Physical Specifications
Lead Material
Soldering Characteristics
Solder Heat Withstand
Insulating Material
Operation Temperature
RUEF090 to RUEF250: Tin-plated Copper-clad Steel, 0.205mm
2
(24AWG)
RUEF300 to RUEF900: Tin-plated Copper, 0.52mm
2
(20AWG), ø0.81mm (0.032in)
Solderability per ANSI/J-STD-002 Category 3
per IEC-STD 68-2-20, Test Tb, Method 1a, Condition b, Can Withstand 10s at 260°C ±5°C
Cured, Flame-retardant Epoxy Polymer; Meets UL 94V-0
-40°C~85°C
Note:
Devices are not designed to be placed through a reflow process.
Environmental Specifications
Test
Passive Aging
Humidity Aging
Thermal Shock
Solvent Resistance
Moisture Resistance Level
Storage Conditions
Conditions
70°C, 1000 hrs
85°C, 1000 hrs
85°C, 85% R.H., 1000 hrs
85°C to -40°C (10 times)
MIL-STD-202, Method 215F
Level 1, J-STD-020
40°C max, 70% RH max; devices should remain in original sealed bags prior to use.
Devices may not meet specified values if these storage conditions are exceeded.
Resistance Change
±5%
±5%
±5%
±5%
No change
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 10/22/18
A
A
E
E
A
A
E
E
A
B
B
A
E
A
E
B
A
E
B
E
A
A
E
E
PolySwitch
®
Resettable PTCs
Radial Leaded > RUEF Series
D
C
C
to
C
L L
C
F
C
to
C C C
L L L L
D
F
C C
L L
C
C
to
C
L L
B
B
B
B
D
D
B
B
D
D
F
C C
L L
C
C
to
C
L L
D
F
C CC
L L
C
to
C
L L
D
C
C
to
C
L L
F
CC
L L
A
C
F
C
to
C C C
L L L L
C
F
C
to
C C C
L L L L
Dimension Figures
A
A
E
E
A
A
E
F
C C
L L
C
C
to
C
L L
D
C
C
to
C
L L
F
CC
L L
D
F
CC
L L
E
A
E
E
B
B
B
B
J
J
J
B
B
A
C
A
C
H
H
J
D
E
D
C
F
C C
L L
D
C
C
to
C
L L
F
C
to
C C C
L L L L
C
D
F
CC
L L
C
C
to
C
L L
E
D
F
C
to
C C C
L L L L
C
D
F
CC
L L
Figure 3
C
C
to
C
L L
F
C
to
C C C
L L L L
Figure 4
Figure 1
Dimensions and Weights
J
J
Figure 2
A
A
A
C
A
C
B
A
E
E
B
B
A
E
E
Dimensions in Millimeters (Inches)
J
Part
Number
A
J
B
E
Min
Max
E
C
Max
H
D
H
E
Min
D
B
H
Typ
D
J
Typ
Figure
D
Device Mass (g)
(Only for Reference)
Min
Max
Min
Min
Max
Max
D
C
C L
L
3.0
to
C
RUEF – 30V
RUEF090
RUEF110
A
RUEF135
B
—
—
—
B
7.4
(0.29)
7.4
E
(0.29)
8.9
(0.35)
8.9
(0.35)
10.2
(0.40)
11.4
(0.45)
11.4
(0.45)
14.0
(0.55)
14.0
(0.55)
16.5
(0.65)
19.1
(0.75)
21.6
(0.85)
24.1
(0.95)
—
—
—
—
—
—
—
—
—
—
—
—
—
12.2
(0.48)
14.2
(0.56)
13.5
(0.53)
15.2
(0.60)
15.7
(0.62)
18.3
(0.72)
16.5
(0.65)
19.3
(0.76)
24.1
(0.95)
24.1
(0.95)
25.9
(1.02)
28.4
(1.12)
29.0
(1.14)
4.3
(0.17)
4.3
(0.17)
4.3
(0.17)
4.3
(0.17)
4.3
(0.17)
4.3
(0.17)
4.3
(0.17)
4.3
(0.17)
9.4
(0.37)
9.4
(0.37)
9.4
(0.37)
9.4
(0.37)
9.4
(0.37)
5.8
(0.23)
5.8
(0.23)
5.8
(0.23)
5.8
(0.23)
5.8
(0.23)
5.8
(0.23)
5.8
(0.23)
5.8
(0.23)
10.9
(0.43)
10.9
(0.43)
10.9
(0.43)
10.9
(0.43)
10.9
(0.43)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
C
—
C
to
C
L L
—
C
C
to
C
L L
C
C
to
C
L L
0.89
0.8
(0.12) (0.035) (0.03)
3.0
0.89
0.8
(0.12) (0.035) (0.03)
3.0
0.89
1.0
(0.12) (0.035) (0.04)
3.0
0.89
1.0
(0.12) (0.035) (0.04)
3.0
0.89
1.0
(0.12) (0.035) (0.04)
3.0
0.89
1.2
(0.12) (0.035) (0.05)
3.0
1.19
1.5
(0.12) (0.047) (0.06)
3.0
1.19
1.7
(0.12) (0.047) (0.07)
3.0
1.19
1.0
(0.12) (0.047) (0.04)
3.0
1.19
1.0
(0.12) (0.047) (0.04)
3.0
1.19
1.2
(0.12) (0.047) (0.05)
3.0
1.19
1.5
(0.12) (0.047) (0.06)
3.0
1.19
1.5
(0.12) (0.047) (0.06)
1,3,4
1,3,4
1,3,4
1,3,4
1,3,4
1,3,4
2,3,4
2,3,4
2,3,4
2,3,4
2,3,4
2,3,4
2,3,4
0.183
0.204
0.255
0.289
0.379
0.493
0.516
0.670
0.926
1.352
1.543
1.852
2.104
A
E
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
RUEF160
D
RUEF185
C
C
C
to
C
C
to
C
L L
L
RUEF250
L
—
—
D
—
—
—
—
—
—
—
—
RUEF300
RUEF400
RUEF500
RUEF600
RUEF700
RUEF800
RUEF900
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 10/22/18
PolySwitch
®
Resettable PPTCs
Radial Leaded > RUEF Series
Packaging and Marking Information
Part
Number
Bag
Quantity
Tape and Reel
Quantity
Ammo Pack
Quantity
RUEF – 30V
RUEF090
RUEF090-2
RUEF090-AP
RUEF110
RUEF110-2
RUEF110-AP
RUEF135
RUEF135-2
RUEF135-AP
RUEF160
RUEF160-2
RUEF160-AP
RUEF185
RUEF185-2
RUEF185-AP
RUEF250
RUEF250-2
RUEF250-AP
RUEF300
RUEF300-2
RUEF300-AP
RUEF400
RUEF400-2
RUEF400-AP
RUEF500
RUEF500-2
RUEF500-AP
RUEF600
RUEF600-2
RUEF600-AP
RUEF700
RUEF700-2
RUEF700-AP
RUEF800
RUEF800-2
RUEF800-AP
RUEF900
RUEF900-2
RUEF900-AP
500
—
—
500
—
—
500
—
—
500
—
—
500
—
—
500
—
—
500
—
—
500
—
—
250
—
—
250
—
—
250
—
—
250
—
—
250
—
—
—
3,000
—
—
3,000
—
—
3,000
—
—
3,000
—
—
3,000
—
—
3,000
—
—
2,500
—
—
1,500
—
—
1,500
—
—
1,000
—
—
1,000
—
—
1,000
—
—
1,000
—
—
—
2,000
—
—
2,000
—
—
2,000
—
—
2,000
—
—
2,000
—
—
2,000
—
—
1,000
—
—
1,000
—
—
1,000
—
—
1,000
—
—
1,000
—
—
1,000
—
—
1,000
10,000
15,000
10,000
10,000
15,000
10,000
10,000
15,000
10,000
10,000
15,000
10,000
10,000
15,000
10,000
10,000
15,000
10,000
10,000
12,500
5,000
10,000
7
,500
5,000
5,000
7
,500
5,000
5,000
5,000
5,000
5,000
5,000
5,000
5,000
5,000
5,000
5,000
4,000
4,000
U90
U90
U90
U110
U110
U110
U135
U135
U135
U160
U160
U160
U185
U185
U185
U250
U250
U250
U300
U300
U300
U400
U400
U400
U500
U500
U500
U600
U600
U600
U700
U700
U700
U800
U800
U800
U900
U900
U900
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
UL, CSA, TÜV, CQC
Standard Package
Quantity
Part
Marking
Agency
Recognition
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 10/22/18
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