POLYSWITCH RESETTABLE
DEVICES
Automotive Devices
We have provided PPTC resettable devices for the
automotive industry for over 25 years. With the
advent of TS16949 and our continued involvement in
the automotive industry, Littelfuse PolySwitch team
developed automotive-specific versions of PPTC devices
(femtoASMDC, picoASMDC, nanoASMDC, microASMD,
miniASMDC, ASMDC, nanoASMDCH, AHS, ASMD, AHRF,
AHEF and AGRF). These products are qualified and sold
under the PS400 specification which is derived from
AEC-Q200, the standard for electronic components used
in the automotive industry. The key difference between
these product families and other protection devices in our
circuit protection product portfolio is the qualification
process that is followed that includes a series of rigorous
tests related to the automotive environment. As a result,
they are characterized by specific additional values
determined following automotive-related testing.
BENEFITS
• Expertise from the world’s leading resettable
overcurrent protection manufacturer
• High-quality products from the world’s largest
passive component manufacturer
• Worldwide team dedicated to support
automotive applications
• Wide range of dedicated automotive surface-mount
and radial-leaded resettable overcurrent devices
• High-performance transient voltage
protection devices
APPLICATIONS
• Motor and motor circuit protection including power
door-locks, mirrors, lumbar pumps, seats, sunroofs
and windows
• Electronic Control Unit (ECU) I/O protection
• Heating, Ventilation and Cooling (HVAC) motor and
I/O protection
• Telematics, infotainment and navigations systems
• Liquid Crystal Display (LCD) back-light heaters
• Power and cigarette lighter outlets, plugs and
adapter/chargers
• Powered networks and buses
• Air-flow detection and overcurrent protection in
HVAC and cooling fan systems
• Stall detection in express window and sunroof circuits
• Resettable overcurrent protection for power
distribution, electrical centers and junction boxes
• Wire downsizing
• Motor electromagnetic interference (EMI)
suppression
• Electrostatic discharge (ESD) damage protection
• Load dump and other transient voltage protection
FEATURES
• RoHS compliant
• Overcurrent and overvoltage circuit
protection devices
• Resettable and single-use overcurrent devices
• Wide range of form factor and termination methods
• Products meet applicable automotive
industry standards
• Devices compatible with high-volume
electronics assembly
190
Specifications subject to change without notice. ©2017 Littelfuse, Inc.
RoHS Compliant, ELV Compliant
PolySwitch Resettable Devices
Automotive Devices
Table A1 — Product Series - Current Rating, Voltage Rating/Typical Resistance
Voltage
Rating
Hold Current (A)
0.30
0.50
0.70
0.75
0.80
1.00
1.20
1.25
1.50
1.60
1.85
2.00
2.50
3.00
4.00
4.50
5.00
5.50
6.00
6.50
7.00
7.50
8.00
9.00
10.00
11.00
12.00
13.00
14.00
15.00
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0.0300Ω
—
0.0192Ω
—
0.0145Ω
—
0.0105Ω
—
0.0086Ω
0.0070Ω
0.0056Ω
0.0050Ω
0.0046Ω
—
0.0040Ω
—
—
—
—
—
—
—
—
—
—
—
—
0.0565Ω
—
0.0410Ω
0.0305Ω
0.0290Ω
—
0.0190Ω
0.0180Ω
0.0140Ω
0.0126Ω
0.0120Ω
0.0104Ω
0.0100Ω
0.0083Ω
0.0069Ω
—
0.0055Ω
0.0050Ω
0.0050Ω
—
0.565Ω
0.385Ω
—
—
0.225Ω
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0.5650Ω
0.3850Ω
—
—
0.2250Ω
—
—
—
—
—
—
—
0.0520Ω
—
—
0.0200Ω
—
—
—
—
0.0120Ω
—
—
0.0083Ω
—
—
—
—
—
—
—
—
—
0.250Ω
—
0.245Ω
—
—
0.100Ω
—
0.070Ω
—
0.050Ω
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0.160Ω
0.140Ω
—
0.079Ω
0.090Ω
0.060Ω
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0.60Ω
—
0.30Ω
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0.149Ω
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
2.90Ω
0.90Ω
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
AGRF
16V
AHRF
16V
AHRF
30V
AHEF
32V
AHS
16V
ASMD
16V
ASMD
30V
ASMD
33V
ASMD
60V
191
Specifications subject to change without notice. ©2017 Littelfuse, Inc.
RoHS Compliant, ELV Compliant
PolySwitch Resettable Devices
Automotive Devices
Table A1 — Product Series - Current Rating, Voltage Rating/Typical Resistance
Voltage
Rating
femtoASMDC femtoASMDC
15V
12V
picoASMDC
15V
nanoASMDC
60V
nanoASMDC
48V
nanoASMDC
24V
nanoASMDC
16V
nanoASMDC
13.2V
microASMD
30V
microASMD
13.2V
(Cont'd)
Hold Current (A)
0.05
0.08
0.10
0.12
0.16
0.20
0.25
0.35
0.50
16.90Ω
—
8.00Ω
—
—
—
—
—
—
—
8.40Ω
—
—
—
—
—
—
—
—
—
6.25Ω
5.25Ω
—
—
—
—
—
—
—
8.30Ω
—
—
—
—
—
—
3.95Ω
3.05Ω
—
—
—
—
—
—
—
—
—
—
—
1.875Ω
—
—
—
—
—
—
—
—
—
1.25Ω
0.90Ω
—
—
—
—
—
—
—
—
—
0.475Ω
26.80Ω
—
8.55Ω
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0.575Ω
Voltage
Rating
miniASMDC
60V
miniASMDC
33V
miniASMDC
30V
miniASMDC
24V
miniASMDC
16V
miniASMDC
13.2V
miniASMDC
12V
ASMDC
60V
ASMDC
33V
ASMDC
24V
nanoASMDCH
16V
Hold Current (A)
0.10
0.14
0.20
0.30
0.35
0.50
0.75
1.10
1.25
1.50
1.85
2.00
2.60
3.00
6.70Ω
3.75Ω
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0.25Ω
—
—
—
—
—
—
—
—
—
1.950Ω
0.975Ω
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0.575Ω
0.190Ω
0.120Ω
—
0.080Ω
—
—
—
—
—
—
—
—
—
—
—
0.1200Ω
0.0950Ω
0.0750Ω
—
0.0525Ω
0.0325Ω
—
—
—
—
—
—
—
0.280Ω
—
—
—
—
—
0.0325Ω
—
—
—
—
—
—
—
—
—
—
0.075Ω
—
—
0.031Ω
—
—
—
—
1.850Ω
—
0.675Ω
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0.355Ω
—
0.145Ω
—
0.100Ω
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0.0435Ω
—
—
—
—
0.90Ω
—
—
—
—
—
—
—
—
—
RoHS Compliant, ELV Compliant
Specifications subject to change without notice. ©2017 Littelfuse, Inc.
192
PolySwitch Resettable Devices
Automotive Devices
Table A2 — Thermal Derating [Hold Current (A) at Ambient Temperature (°C)]
Part
Number
AGRF
16V — Radial-leaded
AGRF400
AGRF500
AGRF600
AGRF700
AGRF800
AGRF900
AGRF1000
AGRF1100
AGRF1200
AGRF1400
AHRF (High Temperature)
30V — Radial-leaded
AHRF050
AHRF070
AHRF100
AHRF (High Temperature)
16V — Radial-leaded
AHRF200
AHRF300
AHRF400
AHRF450
AHRF550
AHRF600
AHRF650
AHRF700
AHRF750
AHRF800
AHRF900
AHRF1000
AHRF1100
AHRF1300
AHRF1400
AHRF1500
AHEF (High Temperature)
32V — Radial-leaded
AHEF050
AHEF070
AHEF100
AHEF300
AHEF500
AHEF750
AHEF1000
AHS (High Temperature)
16V — Surface-mount
AHS080-2018
AHS120
AHS160
AHS200
AHS300
1.20
1.72
2.15
2.90
4.20
1.04
1.54
1.96
2.50
3.80
0.90
1.36
1.78
2.20
3.70
0.8
1.2
1.6
2.0
3.0
0.77
1.14
1.55
1.94
2.92
0.68
1.01
1.42
1.80
2.63
0.62
0.92
1.33
1.75
2.44
0.60
0.83
1.24
1.70
2.10
0.53
0.74
1.15
1.40
2.00
0.46
0.61
1.01
1.18
1.76
0.26
0.25
0.64
0.67
1.00
0.7
1.0
1.4
4.1
6.8
10.2
13.6
0.6
0.9
1.2
3.8
6.3
9.4
12.5
0.60
0.80
1.10
3.42
5.70
8.55
11.40
0.5
0.7
1.0
3.1
5.2
7.7
10.3
0.5
0.7
1.0
3.0
5.0
7.5
10.0
0.4
0.6
0.9
2.7
4.5
6.7
8.9
0.400
0.600
0.800
2.430
4.050
6.075
8.100
0.40
0.50
0.70
2.22
3.70
5.55
7.40
0.30
0.50
0.70
1.98
3.30
4.95
6.60
0.300
0.400
0.600
1.650
2.750
4.125
5.500
0.1
0.2
0.2
0.6
1.0
1.5
2.0
2.7
4.1
5.6
6.1
7.5
8.2
8.8
9.5
10.2
10.9
12.2
13.6
14.9
17.7
19.0
20.4
2.5
3.7
5.1
5.6
6.9
7.5
8.1
8.7
9.4
10.0
11.2
12.5
13.7
16.3
17.5
18.8
2.3
3.4
4.7
5.1
6.2
6.8
7.4
8.0
8.6
9.1
10.2
11.4
12.5
14.8
15.9
17.1
2.1
3.1
4.2
4.6
5.7
6.2
6.7
7.2
7.7
8.2
9.3
10.3
11.3
13.4
14.4
15.5
2.0
3.0
4.0
4.5
5.5
6.0
6.5
7.0
7.5
8.0
9.0
10.0
11.0
13.0
14.0
15.0
1.8
2.7
3.6
4.0
4.9
5.3
5.7
6.2
6.6
7.1
8.0
8.8
9.7
11.4
12.4
13.2
1.6
2.4
3.3
3.6
4.4
4.9
5.3
5.6
6.1
6.4
7.2
8.1
8.8
10.5
11.2
12.1
1.5
2.2
3.0
3.3
4.0
4.4
4.8
5.2
5.6
5.9
6.6
7.4
8.1
9.6
10.3
11.1
1.3
2.0
2.7
3.0
3.7
4.0
4.3
4.7
5.0
5.3
6.0
6.6
7.3
8.6
9.3
9.9
1.1
1.7
2.3
2.5
3.1
3.3
3.6
3.9
4.1
4.4
5.0
5.5
6.1
7.2
7.8
8.3
0.5
0.7
1.0
1.1
1.4
1.5
1.6
1.7
1.9
2.0
2.2
2.5
2.7
3.3
3.5
3.8
0.7
1.0
1.4
0.6
0.9
1.2
0.6
0.8
1.1
0.5
0.7
1.0
0.5
0.7
1.0
0.4
0.6
0.9
0.4
0.6
0.8
0.4
0.5
0.7
0.3
0.5
0.7
0.3
0.4
0.6
0.1
0.2
0.2
5.9
7.3
8.8
10.3
11.7
13.2
14.7
16.1
17.6
20.5
5.3
6.6
8.0
9.3
10.7
11.9
13.3
14.6
16.0
18.7
4.8
6.0
7.2
8.4
9.6
10.7
12.0
13.1
14.4
16.8
4.1
5.2
6.2
7.3
8.3
9.4
10.3
11.5
12.4
14.5
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
14.0
3.5
4.4
5.2
6.2
6.9
7.9
8.7
9.7
10.4
12.1
3.2
4.0
4.8
5.6
6.4
7.2
8.0
8.8
9.6
11.2
2.8
3.6
4.2
5.0
5.6
6.4
7.0
7.8
8.4
9.8
2.5
3.1
3.8
4.4
5.1
5.6
6.3
6.9
7.6
8.9
1.9
2.4
2.8
3.3
3.7
4.2
4.7
5.2
5.6
6.5
—
—
—
—
—
—
—
—
—
—
Maximum Ambient Temperature
-40°C
-20°C
0°C
20°C
25°C
40°C
50°C
60°C
70°C
85°C
125°C
193
Specifications subject to change without notice. ©2017 Littelfuse, Inc.
RoHS Compliant, ELV Compliant
PolySwitch Resettable Devices
Automotive Devices
Table A2 — Thermal Derating [Hold Current (A) at Ambient Temperature (°C)]
Part
Number
ASMD
16-60V — Surface-mount
ASMD030F
ASMD050F
ASMD075F
ASMD100F
ASMD125F
ASMD150F
ASMD150F/33
ASMD185F
ASMD200F
ASMD250F
femtoASMDC
12-15V — Surface-mount
femtoASMDC005F
femtoASMDC008F
femtoASMDC010F/15
picoASMD
15V — Surface-mount
picoASMDC010S
picoASMDC012S
nanoASMDC
13.2-48V—Surface-mount
nanoASMDC010F
nanoASMDC012F
nanoASMDC016F
nanoASMDC020F
nanoASMDC025F
nanoASMDC035F
nanoASMDC050F/13.2
0.15
0.20
0.21
0.34
0.38
0.58
0.78
0.14
0.17
0.20
0.30
0.33
0.51
0.69
0.12
0.15
0.18
0.26
0.30
0.44
0.61
0.10
0.13
0.16
0.22
0.26
0.38
0.52
0.10
0.12
0.16
0.20
0.25
0.35
0.50
0.09
0.11
0.14
0.17
0.22
0.31
0.44
0.08
0.10
0.13
0.15
0.20
0.28
0.39
0.07
0.09
0.12
0.13
0.19
0.24
0.35
0.06
0.08
0.11
0.11
0.16
0.21
0.30
0.05
0.07
0.09
0.08
0.11
0.16
0.24
—
—
—
—
—
—
—
0.17
0.20
0.15
0.17
0.13
0.15
0.11
0.13
0.10
0.12
0.09
0.10
0.08
0.09
0.07
0.08
0.06
0.07
0.05
0.05
—
—
0.08
0.13
0.16
0.07
0.11
0.14
0.06
0.10
0.12
0.05
0.08
0.11
0.05
0.08
0.10
0.04
0.07
0.09
0.04
0.06
0.08
0.03
0.06
0.07
0.03
0.05
0.06
0.02
0.04
0.04
—
—
—
0.35
0.59
0.91
1.37
1.58
1.93
1.96
2.93
2.63
3.00
0.31
0.53
0.81
1.22
1.40
1.70
1.73
2.58
2.34
2.66
0.27
0.46
0.71
1.06
1.23
1.50
1.50
2.30
2.04
2.32
0.23
0.39
0.60
0.90
1.04
1.27
1.26
1.93
1.73
1.97
0.22
0.37
0.58
0.86
1.00
1.22
1.20
1.85
1.66
1.89
0.19
0.33
0.50
0.76
0.87
1.07
1.03
1.62
1.45
1.65
0.17
0.29
0.45
0.68
0.78
0.95
0.91
1.44
1.30
1.48
0.15
0.26
0.40
0.60
0.70
0.85
0.80
1.30
1.16
1.32
0.13
0.23
0.35
0.52
0.60
0.74
0.68
1.12
1.00
1.14
0.11
0.18
0.28
0.41
0.48
0.58
0.51
0.88
0.80
0.91
—
—
—
—
—
—
—
—
—
—
Maximum Ambient Temperature
-40°C
-20°C
0°C
20°C
25°C
40°C
50°C
60°C
70°C
85°C
125°C
(Cont'd)
microASMD
13.2-30V — Surface-mount
microASMD005F
microASMD010F
microASMD050F
miniASMDC
16-60V — Surface-mount
miniASMDC010F
miniASMDC014F
miniASMDC020F
miniASMDC030F
miniASMDC050F
miniASMDC075F
miniASMDC075F/24
miniASMDC075F/33
miniASMDC110F/16
miniASMDC110F/24
miniASMDC125F/16
miniASMDC150F/12
0.17
0.23
0.30
0.49
0.59
1.10
1.50
1.09
1.68
2.00
2.00
2.40
0.15
0.20
0.27
0.44
0.57
0.99
1.25
0.98
1.49
1.70
1.69
2.10
0.13
0.17
0.23
0.39
0.55
0.87
1.00
0.87
1.30
1.40
1.47
1.80
0.11
0.14
0.20
0.32
0.50
0.75
0.75
0.77
1.10
1.10
1.25
1.50
0.10
0.13
0.19
0.30
0.48
0.72
0.73
0.75
1.05
1.06
1.17
1.44
0.09
0.11
0.17
0.27
0.45
0.63
0.65
0.66
0.92
0.95
1.03
1.25
0.08
0.10
0.15
0.24
0.43
0.57
0.60
0.61
0.83
0.88
0.92
1.13
0.07
0.09
0.13
0.22
0.35
0.49
0.55
0.55
0.75
0.80
0.90
1.00
0.06
0.07
0.12
0.18
0.30
0.45
0.50
0.50
0.64
0.73
0.69
0.88
0.04
0.05
0.09
0.14
0.23
0.35
0.43
0.41
0.50
0.61
0.53
0.69
—
—
—
—
—
—
—
—
—
—
—
—
0.08
0.15
0.76
0.07
0.13
0.66
0.06
0.12
0.58
0.05
0.10
0.50
0.05
0.10
0.48
0.04
0.09
0.42
0.04
0.08
0.38
0.03
0.06
0.35
0.03
0.06
0.29
0.02
0.05
0.23
—
—
—
RoHS Compliant, ELV Compliant
Specifications subject to change without notice. ©2017 Littelfuse, Inc.
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