PolySwitch® Resettable PPTCs
Radial Leaded > AHRF Series
AHRF Series
RoHS
Description
The AHRF Series is a PPTC resettable device designed
specifically for the automotive industry. It is a 16V
high-temperature, lead-free, radial leaded resettable
device that meets Littelfuse’s Automotive qualification.
This qualification is based on AEC-Q200: Stress Test
Qualification for Passive Components.
Applications
• Motor and motor circuit protection including power doorlocks, mirrors, lumbar umps, seats, sunroofs and windows
• Electronic Control Unit (ECU) I/O protection
Features
• Overcurrent and overvoltage circuit protection devices
• Heating, Ventilation and Cooling (HVAC) motor and
I/O protection
• Resettable and single-use overcurrent devices
• Telematics, infotainment and navigations systems
• Wide range of form factor and termination methods
• Liquid Crystal Display (LCD) back-light heaters
• Products meet applicable automotive industry standards
• Power and cigarette lighter outlets, plugs and adapter/chargers
• Devices compatible with high-volume electronics
assembly
• Powered networks and buses
• Air-flow detection and overcurrent protection in HVAC
and cooling fan systems
• RoHS compliant, Lead-Free and Halogen-Free
• Stall detection in express window and sunroof circuits
• Resettable overcurrent protection for power distribution,
electrical centers and junction boxes
Additional Information
• Wire downsizing
Datasheet
• Motor electromagnetic interference (EMI) suppression
Samples
Resources
• Electrostatic discharge (ESD) damage protection
• Load dump and other transient voltage protection
Electrical Characteristics
Part
Number
IH(A)@
IH(A)@
IT
VMAX
IMAX
PD Typ
(R1MAX)
(RaMAX)
(A)
(VDC)
(A)
(W)
Max Time-to-trip
(A)
RMIN
RMAX
R1MAX
(s)
(Ω)
(Ω)
(Ω)
Lead Size
(mm2/AWG)
AHRF (High Temperature) – 30V
AHRF050
0.5
0.5
1.0
30
40
0.9
2.5
3.0
0.3500
1.100
1.100
0.205/24
AHRF070
0.7
0.7
1.4
30
40
1.4
3.5
3.2
0.2300
0.800
0.800
0.205/24
AHRF100
1.0
1.0
1.9
30
40
1.4
5.0
6.2
0.1500
0.430
0.430
0.205/24
Notes:
IH : Hold current: maximum current device will pass without interruption in 25°C,
unless otherwise specified.
IT : Trip current: minimum current that will switch the device from low-resistance to
high-resistance in 25°C still air, unless otherwise specified.
VMAX : Maximum voltage device can withstand without damage at rated current.
IMAX : Maximum fault current device can withstand without damage at rated voltage.
PD : Power dissipated from device when in the tripped state in 25°C still air,
unless otherwise specified.
RMIN : Minimum resistance of device as supplied at 25°C, unless otherwise specified.
R1MAX : Maximum resistance of device when measured one hour post trip at 25°C unless
otherwise specified.
RaMAX : Maximum functional resistance of device after being subjected to the stresses
described in PS400 at 25°C, unless otherwise specified.
RaMIN : Minimum functional resistance of device after being subjected to the stresses
described in PS400 at 25°C, unless otherwise specified.
* Electrical characteristics determined at 25°C.
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/19
PolySwitch® Resettable PTCs
Radial Leaded > AHRF Series
Electrical Characteristics
Part
Number
(Cont’d)
IH(A)@
IH(A)@
IT
VMAX
IMAX
PD Typ
(R1MAX)
(RaMAX)
(A)
(VDC)
(A)
(W)
Max Time-to-trip
(A)
RMIN
RMAX
R1MAX
(s)
(Ω)
(Ω)
(Ω)
Lead Size
(mm2/AWG)
AHRF (High Temperature) – 16V
AHRF200
2.0
2.0
3.8
16
100
1.4
10.0
4.8
0.0390
0.1100
0.1100
0.205/24
AHRF300
3.0
3.0
6.5
16
100
3.0
15.0
5.0
0.0290
0.0790
0.0790
0.52/20
AHRF400
4.0
4.0
7.4
16
100
3.3
20.0
5.0
0.0210
0.0600
0.0600
0.52/20
AHRF450
4.5
4.5
8.7
16
100
3.6
22.5
4.0
0.0170
0.0540
0.0540
0.52/20
AHRF550
5.5
5.5
10.0
16
100
3.5
27.5
6.0
0.0130
0.0370
0.0370
0.52/20
AHRF600
6.0
6.0
12.0
16
100
4.1
30.0
6.5
0.0100
0.0320
0.0320
0.52/20
AHRF650
6.5
6.5
13.7
16
100
4.3
32.5
7.0
0.0090
0.0260
0.0260
0.52/20
AHRF700
7.0
7.0
13.1
16
100
4.0
35.0
7.0
0.0087
0.0250
0.0250
0.52/20
AHRF750
7.5
7.5
14.8
16
100
4.5
37.5
8.0
0.0074
0.0220
0.0220
0.52/20
AHRF800
8.0
8.0
15.0
16
100
4.2
40.0
8.0
0.0072
0.0200
0.0200
0.52/20
AHRF900
9.0
9.0
18.5
16
100
5.0
45.0
11.5
0.0061
0.0170
0.0170
0.52/20
AHRF1000
10.0
10.0
20.5
16
100
5.3
50.0
10.5
0.0051
0.0150
0.0150
0.52/20
AHRF1100
11.0
11.0
21.2
16
100
5.5
55.0
11.0
0.0048
0.0130
0.0130
0.52/20
AHRF1300
13.0
13.0
27.0
16
100
6.9
65.0
15.0
0.0034
0.0100
0.0100
0.82/18
AHRF1400
14.0
14.0
28.3
16
100
6.9
70.0
15.5
0.0029
0.0090
0.0090
0.82/18
AHRF1500
15.0
15.0
33.0
16
100
7.0
75.0
20.0
0.0027
0.0092
0.0092
0.82/18
Notes:
IH : Hold current: maximum current device will pass without interruption in 25°C,
unless otherwise specified.
IT : Trip current: minimum current that will switch the device from low-resistance to
high-resistance in 25°C still air, unless otherwise specified.
VMAX : Maximum voltage device can withstand without damage at rated current.
IMAX : Maximum fault current device can withstand without damage at rated voltage.
PD : Power dissipated from device when in the tripped state in 25°C still air,
unless otherwise specified.
RMIN : Minimum resistance of device as supplied at 25°C, unless otherwise specified.
R1MAX : Maximum resistance of device when measured one hour post trip at 25°C unless
otherwise specified.
RaMAX : Maximum functional resistance of device after being subjected to the stresses
described in PS400 at 25°C, unless otherwise specified.
RaMIN : Minimum functional resistance of device after being subjected to the stresses
described in PS400 at 25°C, unless otherwise specified.
* Electrical characteristics determined at 25°C.
Typical Time-to-Trip Curves at 25°C
C
1000
K = AHRF700
L = AHRF750
M = AHRF800
N = AHRF900
O = AHRF1000
P = AHRF1100
Q = AHRF1300
R = AHRF1400
S = AHRF1500
100
Time-to-Trip (s)
AHRF
A = AHRF050
B = AHRF070
C = AHRF100
D = AHRF200
E = AHRF300
F = AHRF400
G = AHRF450
H = AHRF550
I = AHRF600
J = AHRF650
D
E
F G H I JKLM N OP QRS
B
A
10
S
R
Q
P
O
N
M
L
K
J
I
H
1
0.10
0.01
1
10
A
Fault Current (A)
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/19
B
C
D
G
F
E 100
PolySwitch® Resettable PPTCs
Radial Leaded > AHRF 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
125°C
Hold Current (A)
AHRF (High Temperature) – 30V
AHRF050
0.7
0.6
0.6
0.5
0.5
0.4
0.4
0.4
0.3
0.3
0.1
AHRF070
1.0
0.9
0.8
0.7
0.7
0.6
0.6
0.5
0.5
0.4
0.2
AHRF100
1.4
1.2
1.1
1.0
1.0
0.9
0.8
0.7
0.7
0.6
0.2
1.6
1.5
1.3
1.1
0.5
AHRF (High Temperature) – 16V
AHRF200
2.7
2.5
2.3
2.1
2.0
1.8
AHRF300
4.1
3.7
3.4
3.1
3.0
2.7
2.4
2.2
2.0
1.7
0.7
AHRF400
5.6
5.1
4.7
4.2
4.0
3.6
3.3
3.0
2.7
2.3
1.0
AHRF450
6.1
5.6
5.1
4.6
4.5
4.0
3.6
3.3
3.0
2.5
1.1
AHRF550
7.5
6.9
6.2
5.7
5.5
4.9
4.4
4.0
3.7
3.1
1.4
AHRF600
8.2
7.5
6.8
6.2
6.0
5.3
4.9
4.4
4.0
3.3
1.5
AHRF650
8.8
8.1
7.4
6.7
6.5
5.7
5.3
4.8
4.3
3.6
1.6
AHRF700
9.5
8.7
8.0
7.2
7.0
6.2
5.6
5.2
4.7
3.9
1.7
AHRF750
10.2
9.4
8.6
7.7
7.5
6.6
6.1
5.6
5.0
4.1
1.9
AHRF800
10.9
10.0
9.1
8.2
8.0
7.1
6.4
5.9
5.3
4.4
2.0
AHRF900
12.2
11.2
10.2
9.3
9.0
8.0
7.2
6.6
6.0
5.0
2.2
AHRF1000
13.6
12.5
11.4
10.3
10.0
8.8
8.1
7.4
6.6
5.5
2.5
AHRF1100
14.9
13.7
12.5
11.3
11.0
9.7
8.8
8.1
7.3
6.1
2.7
AHRF1300
17.7
16.3
14.8
13.4
13.0
11.4
10.5
9.6
8.6
7.2
3.3
AHRF1400
19.0
17.5
15.9
14.4
14.0
12.4
11.2
10.3
9.3
7.8
3.5
AHRF1500
20.4
18.8
17.1
15.5
15.0
13.2
12.1
11.1
9.9
8.3
3.8
Temperature Rerating Curve
% of Rated Hold and Trip Current
200
150
100
50
0
-40
-20
0
20
40
60
80
100
120
Ambient Temperature (˚C)
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/19
PolySwitch® Resettable PTCs
Radial Leaded > AHRF Series
Physical Specifications
AHRF050 to AHRF200 : Tin-plated Copper-clad Steel, 0.205mm2 (24 AWG), ø 0.51mm/0.020in
Lead Material
AHRF300 to AHRF1100 : Tin-plated Copper 0.52mm2 (20 AWG), ø 0.81mm/0.032in
AHRF1300 to AHRF1500 : Tin-plated Copper 0.82mm2 (18 AWG), ø 1.0mm/0.04in
Soldering Characteristics
Solderability per ANSI/J-STD 002 Category 3
Solder Heat Withstand
Per IEC 68-2-20, Test Tb, Method 1a, Condition b; Can Withstand 10 s at 260°C ± 5°C
Insulating Material
Cured, Flame-retardant Epoxy Polymer; Meets UL 94V-0 Requirements
Operation Temperature
-40°C~125°C
Note: See PS400 for other physical characteristics.
Devices are not designed to be placed through a reflow process.
Environmental Specifications
Test
Conditions
Resistance Change
70°C, 1000 hrs
±5%
85°C, 1000 hrs
±5%
Humidity Aging
85°C, 85% R.H., 1000 hrs
±5%
Thermal Shock
125°C, -40°C 10 times
±5%
Solvent Resistance
MIL-STD-202, Method 215F
No change
Passive Aging
Note: See PS400 for other environmental specifications.
Moisture Resistance Level
Level 1, J-STD-020
Storage Conditions
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.
Part Ordering Number System
AHRF 800 -2
Packaging Option
(Blank) = Bulk
2
= Tape and Reel Packaging
AP
= Ammo Pack
Hold Current Indicator
Product Series
An “F” at the End of the Series Indicates Pb-free Version of Product
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/19
A
G
G
H
B
D
F
C
®
PolySwitch
Resettable PPTCs
C
J
RadialB Leaded > AHRF
Series
A
D
E
E
J
F
E
EC
CL
A
A
C
D
D
H
F
CL CL
CL
C
B
F
Dimension Figures
A
G
E
A
A
E
F
H
G
D
D
C
B
CL
D
Figure 2
B
B
C
E
E
G
A
F
Min
CL CL
AHRF050
H
BA
Max
Min
B
AHRF070
—
AHRF100
D
7.4
(0.29)
DG
Max
Min
—
B
—
12.7
(0.50)
4.3
(0.17)
5.8
(0.23)
—
10.8
(0.43)
4.3
(0.17)
—
13.6
(0.54)
4.3
(0.17)
E
6.9
(0.27)
9.7
(0.38)
E
H
Max
Min
—
C
CL to CL
AHRF300
AHRF400
9.4
(0.37)
F
—
7.6
(0.30)
—
5.8
(0.23)
7.6 B
(0.30)
A
—
E
C
CL to CL
—
F
B
Max
Min
D3.3
3.3
(0.13)
—
3.0
(0.12)
D
G
D
Max
C
CL
Min
Max
CL
13.8
(0.55)
4.3
(0.17)
5.8
(0.23)
7.6
(0.30)
15.0
(0.59)
4.3
(0.17)
5.8
(0.23)
G
7.6H
(0.30)
—
—
15.6
(0.61)
4.3
(0.17)
5.8
(0.23)
7.6
(0.30)
—
—
18.9
(0.74)
4.3
(0.17)
5.8
(0.23)
7.6
(0.30)
—
21.0
(0.73)
4.3
(0.17)
5.8D
(0.23)
7.6
(0.30)
—
10.0
(0.39)
—
10.4
(0.41)
AHRF550
—
11.2
(0.44)
I
A
—
11.2
(0.44)
—
D
C
CL to CL
—
B
F
CL CL
—
—
—
—
—
(0.05)
1.2
C
(0.05)
—
F
—
G
E(x2)
A
1.2
(0.05)
—
—
—
3.0
1.2
(0.12)A (0.05)
—
—
3.0
(0.12)
1.2
(0.05)
—
—
—
3.0
(0.12)
1.2
(0.05)
—
—
—
3.0
(0.12)
1.2
(0.05)
—
—
—
3.0
(0.12)
1.2
(0.05)
—
—
D
E
CL CL
Figure
B
B
C
Typ
E(x2)
C
to C
CL 1.24
L
1.6
D
(0.06)
F
CL CL
3,4,5
—
1.24
(0.049)
1.6A
(0.06)
A
A
—
1.24
(0.049)
—
1.24
(0.049)
D
1.6
(0.06)
1.24
(0.049)
1.6
(0.06)
1,4,5
3.94
1.24
(0.155) (0.049)
1.6
(0.06)
1,4,5
1.24
(0.049)
1.6
(0.06)
1,4,5
4.49
1.24
(0.177) (0.049)
1.7
(0.07)
1,4,5
C
—
—
2,4,5
B
D
1.6
(0.06)
G
2,4,5
I
(0.049)
I
H
1.24
(0.049)
1.6
(0.06)
—
H
I
3.0
(0.12)
B
E
G
J
Typ
F
—
E(x2)
B
B
—
—
C
CL CL
C
F
1.2
CL C
L
E
F
H
F
1.2
(0.05)
(0.13)
—
E(x2)
5.8
7.6 D
C
(0.23)C (0.30)
—
—
AHRF600
5.8
(0.23)
4.3
(0.17)
L L
8.8
(0.35)
E(x2)
AHRF450
C
H
—
14.4
(0.57)
—
C C
—
F
B
7.6
(0.30)
B
D
A
C
CL to CL D
E
AHRF (High Temperature) – 16V
D
AHRF200
C
F
E
A
H
Dimensions in Millimeters
(Inches) A
C
Min
B
D
B
Max
—
A
A
G
FigureB 5
E
C
A
H
E
I
AHRF (High Temperature) – 30V
C
A
A
C
J
D
Part
Number
A
I
F
F
CL CL
CL to CL
Figure 3
E(x2)
G
D
A
CC
E
Dimensions
J
C
CL to CL
F
E
F
CL CL
E(x2)
C
Figure 4
A
F
E
B
G
B
J
Figure 1
J
C
C
CL to CL
J
E
J
D
F
CL CL
CL
A
E
H
E
C
F
CL CL
CL
A
F
CL CL
A
C
CL
CL
B
D
D
E
A
A
CL
B
B
C
D
D
C
E
H
B
2,4,5
1,4,5
E
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/19
C
D
®
C
PolySwitch
Resettable PTCs
H
RadialB Leaded > AHRF Series
F
D
A
G
G J
B
A
D
E
C
E
J
F
E
EC
CL
A
A
C
D
H
F
CL CL
CL
C
B
F
Dimension Figures
A
G
E
A
A
E
F
H
G
D
D
C
B
CL
D
Figure 2
B
C
Dimensions
J
E
C
CL to CL
E
A
F
Min
CL CL
H
B
Max
BA
Max
Min
AHRF650
A
A
B
AHRF700
—
AHRF750
AHRF800
AHRF900C
—
E
CL to CL
AHRF1000
AHRF1100
F
DG
Max
Min
E
H
Max
Min
B
AHRF1400
22.2
(0.88)
4.3
(0.17)
5.8
(0.23)
14.0
(0.55)
—
21.9
(0.86)
4.3
(0.17)
14.0
(0.55)
—
23.5
(0.93)
4.3
(0.17)
E
7.6
(0.30)
—
5.8
(0.23)
7.6
(0.30)
—
5.8
(0.23)
7.6 B
—
(0.30)
A
—
22.5
(0.88)
4.3
(0.17)
5.8
(0.23)
16,5F
(0.65)
CL CL
—
25.7
(1.01)
4.3
(0.17)
5.8 C 7.6
CL to CL(0.30)
(0.23)
17.5
(0.69)
—
—
21.0
(0.83)
—
23.5
(0.925)
—
—
—
H
AHRF1500
B
—
—
D
7.6
(0.30) D
—
E
C
CL to CL
—
—
F
—
E(x2)
F
B
Max
Min
—
B
F
CL CL
3.0
D
(0.12)
3.0
(0.12)
3.0
(0.12)
Max
C
CL
G
Min
CL
(0.05)
—
—
—
—
B
—
F
—
G
3.0
(0.12)
1.2
G
(0.05)
I
—
—
3.0
(0.12)
1.2
(0.05)
—
—
—
3.0 A 1.2
(0.12) (0.05)
—
—
—
9.4
(0.37)
10.9
(0.43)
7.6
(0.30)
G H
—
—
26.1
(1.03)
9.4
(0.37)
10.9
(0.43)
7.6
A
(0.30)
—
—B
3.0
(0.12)
1.2
(0.05)
—
—
—
28.7
(1.13)
9.4
10.9
(0.37)C (0.43)
7.6
(0.30)
—
—
3.5
(0.14)
1.4
(0.06)
—
—
23.5
A
(0.93)
—
28.7
(1.13)
9.4
(0.37)
10.9
(0.43)
D
7.6
(0.30)
—
—
3.6
(0.14)
1.4
(0.06)
—
—
23.5
(0.93)
—
9.4
(0.37)
10.9
(0.43)
7.6
(0.30)
—
—
3.5
(0.14)
1.4
(0.06)
—
—
D
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/19
28.7
(1.13)
E
H
D
C
to C
CL 1.24
L
1.8
D
(0.07)
(0.049)
1.6
(0.06)
5.69
1.24
I
(0.224) (0.049)
2.0A
(0.08)
—
A
H
Figure
Typ
5.08
1.24
E(x2)
(0.200) (0.049)
B
E(x2)
E
CL CL
B
Typ
F
J
CL CL
26.5
(1.04)
I
Max
C
F
1.2
CL C
L
E
F
H
F
1.2
(0.05)
1.2
C
(0.05)
D
D
—
C
B
(Cont’d)
D
A
C
CL to CL D
E
D
16.5
(0.65)
—
E(x2)
AHRF1300
12.7
(0.50)
—
C
H
Dimensions in Millimeters
(Inches) A
C
Min
A
I
B
A
H
E
FigureB 5
E
C
AHRF (High Temperature) – 16V
G
A
A
C
E(x2)
G
D
Part
Number
A
F
CL CL
CL to CL
Figure 3
I
F
J
C
D
A
CC
F
CL CL
E(x2)
D
F
E
A
F
C
Figure 4
E
B
B
G
B
J
Figure 1
J
C
C
CL to CL
J
E
J
D
F
CL CL
CL
A
E
H
E
C
F
CL CL
CL
A
F
CL CL
A
C
CL
CL
B
D
E
A
A
CL
B
B
C
D
D
C
E
H
B
A
F
CL CL
1,4,5
1,4,5
B
1.24
(0.049)
D(0.06)
—
—
1,4,5
1.5
(0.06)
E1,4,5
1.24
(0.049)
1.6
(0.06)
1,4,5
7.82
1.45
(0.308) (0.057)
1.9
(0.08)
1,4,5
1.24
(0.049)
1.6
(0.06)
1,4,5
—
—
1,4,5
—
C
—
7.47
1.24
D
(0.294) (0.049)
—
—
7.82
(0.308)
1.6
1,4,5
I
1,4,5
D
PolySwitch® Resettable PPTCs
Radial Leaded > AHRF Series
Packaging and Marking Information
Part
Number
Bag
Quantity
Tape and Reel
Quantity
Ammo Pack
Quantity
Standard Package
Quantity
Part
Marking
Agency
Recognition
AHRF (High Temperature)
AHRF050
500
—
—
10,000
H0.5
*
AHRF050-2
—
2,500
—
12,500
H0.5
*
AHRF050-AP
—
—
2,500
12,500
H0.5
*
500
—
—
10,000
H0.7
*
AHRF070-2
—
2,500
—
12,500
H0.7
*
AHRF070-AP
—
—
2,500
12,500
H0.7
*
500
—
—
10,000
H1
*
AHRF100-2
—
2,500
—
12,500
H1
*
AHRF100-AP
—
—
2,500
12,500
H1
*
500
—
—
10,000
H2
*
AHRF200-2
—
2,500
—
12,500
H2
*
AHRF200-AP
—
—
2,500
12,500
H2
*
500
—
—
10,000
H3
*
AHRF300-2
—
2,000
—
10,000
H3
*
AHRF300-AP
—
—
2,000
10,000
H3
*
500
—
—
10,000
H4
*
AHRF400-2
—
1,500
—
7,500
H4
*
AHRF400-AP
—
—
1,500
7,500
H4
*
500
—
—
10,000
H4.5
*
AHRF450-2
—
1,500
—
7,500
H4.5
*
AHRF450-AP
—
—
1,500
7,500
H4.5
*
500
—
—
10,000
H5.5
*
AHRF550-2
—
2,000
—
10,000
H5.5
*
AHRF550-AP
—
—
2,000
10,000
H5.5
*
500
—
—
10,000
H6
*
AHRF600-2
—
2,000
—
10,000
H6
*
AHRF600-AP
—
—
2,000
10,000
H6
*
500
—
—
10,000
H6.5
*
AHRF650-2
—
1,500
—
7,500
H6.5
*
AHRF650-AP
—
—
1,500
7,500
H6.5
*
AHRF070
AHRF100
AHRF200
AHRF300
AHRF400
AHRF450
AHRF550
AHRF600
AHRF650
*These devices are intended for use in automotive applications.
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/19
PolySwitch® Resettable PTCs
Radial Leaded > AHRF Series
Packaging and Marking Information
Part
Number
Bag
Quantity
(Cont’d)
Tape and Reel
Quantity
Ammo Pack
Quantity
Standard Package
Quantity
Part
Marking
Agency
Recognition
AHRF (High Temperature)
AHRF700
500
—
—
10,000
H7
*
AHRF700-2
—
1,500
—
7,500
H7
*
AHRF700-AP
—
—
1,500
7,500
H7
*
500
—
—
10,000
H7.5
*
AHRF750-2
—
1,000
—
5,000
H7.5
*
AHRF750-AP
—
—
1,000
5,000
H7.5
*
500
—
—
10,000
H8
*
AHRF800-2
—
1,000
—
5,000
H8
*
AHRF800-AP
—
—
1,000
5,000
H8
*
250
—
—
5,000
H9
*
AHRF900-2
—
1,000
—
5,000
H9
*
AHRF900-AP
—
—
1,000
5,000
H9
*
250
—
—
5,000
H10
*
AHRF1000-2
—
1,000
—
5,000
H10
*
AHRF1000-AP
—
—
1,000
5,000
H10
*
250
—
—
5,000
H11
*
AHRF1100-2
—
1,000
—
5,000
H11
*
AHRF1100-AP
—
—
1,000
5,000
H11
*
250
—
—
5,000
H13
*
AHRF1300-2
—
1,000
—
5,000
H13
*
AHRF1300-AP
—
—
1,000
5,000
H13
*
250
—
—
5,000
H14
*
AHRF1400-2
—
1,000
—
5,000
H14
*
AHRF1400-AP
—
—
1,000
5,000
H14
*
250
—
—
5,000
H15
*
AHRF1500-2
—
1,000
—
5,000
H15
*
AHRF1500-AP
—
—
1,000
5,000
H15
*
AHRF750
AHRF800
AHRF900
AHRF1000
AHRF1100
AHRF1300
AHRF1400
AHRF1500
*These devices are intended for use in automotive applications.
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/19
PolySwitch® Resettable PPTCs
Radial Leaded > AHRF Series
Tape and Reel Specifications
AHRF devices are available in tape and reel packaging per EIA468-B/IEC286-2 and EIA 481-2 standards.
See Figures 1 and 2 for details.
Description
EIA Mark
Dimension (mm)
Tolerance
Carrier Tape Width
W
18.0
-0.5/+1.0
Hold Down Tape Width
W4
11.0
Minimum
Top Distance between Tape Edges
W6
3.0
Maximum
Sprocket Hole Position
W5
9.0
-0.5/+0.75
Sprocket Hole Diameter
D0
4.0
±0.2
Abscissa to Plane (Kinked Lead) (AHRF050 to AHRF1500)
H0
16.0
±0.5
Abscissa to Top (AHRF050 to AHRF450)
H1
32.2
Maximum
Abscissa to Top (AHRF550 to AHRF1500*)
H1
45.0
Maximum
Overall Width with Lead Protrusion (AHRF050 to AHRF450)
C1
43.2
Maximum
Overall Width with Lead Protrusion (AHRF550 to AHRF1500)
C1
55.0
Maximum
Overall Width without Lead Protrusion (AHRF050 to AHRF450)
C2
42.5
Maximum
Overall Width without Lead Protrusion (AHRF550 to AHRF1500)
C2
54.0
Maximum
Lead Protrusion
L1
1.0
Maximum
Maximum
Protrusion of Cut-out
L
11.0
Protrusion Beyond Hold-Down Tape
I2
Not specified
—
Sprocket Hole Pitch
P0
12.7
± 0.3
Device Pitch (AHRF050 to AHRF600)
—
12.7
± 0.3
Device Pitch (AHRF650 to AHRF1500)
—
25.4
± 0.6
Pitch Tolerance
—
20 consec.
± 0.1
Tape Thickness
t
0.9
Maximum
Overall Tape and Lead Thickness (AHRF050 to AHRF1100*)
t1
2.0
Maximum
Overall Tape and Lead Thickness (AHRF1300 to AHRF1500*)
t1
2.3
Maximum
Splice Sprocket Hole Alignment
—
0
± 0.3
Body Lateral Deviation
h
0
± 1.0
Body Tape Plane Deviation
p
0
± 1.3
Ordinate to Adjacent Component Lead (AHRF050 to AHRF900)
P1
3.81
± 0.7
Ordinate to Adjacent Component Lead (AHRF1000 to AHRF1500)
P1
7.62
± 0.7
Lead Spacing (AHRF050 to AHRF900*)
F
5.05
± 0.75
F
10.15
± 0.75
Reel Width (AHRF050 to AHRF450)
Lead Spacing (AHRF1000 to AHRF1500*)
w2
56.0
Maximum
Reel Width (AHRF550 to AHRF1500*)
w2
63.5
Maximum
Reel Diameter
A
370.0
Maximum
Arbor Hold Diameter
c
26.0
±12.0
Core Diameter*
n
91.0
Maximum
Box
—
64/372/362
Maximum
Consecutive Missing Places
—
None
—
Empty Places per Reel
—
0.1%
Maximum
*Differs from EIA specification.
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/19
PolySwitch® Resettable PTCs
Radial Leaded > AHRF Series
Tape and Reel Diagrams
h
p
h
p
Reference Plane
H1
P1
H1
F
A
L
H0
B
W4
C2
C1
H
W5
W
I2
L1
P0
D0
Figure 1
Direction of Unreeling
Cross Section A-B
t
Reel
Upper Side
n
Tape
a
Direction of
Unreeling
Lower Side
c
w1
Cross Section
w2
Optional Shape: Circular or Polygonal
Figure 2
WARNING
• Users should independently evaluate the suitability of and test each product selected for their own application.
• Operation beyond the maximum ratings or improper use may result in device damage and possible electrical arcing and flame.
• These devices are intended for protection against damage caused by occasional overcurrent or overtemperature fault conditions and should not be used when
repeated fault conditions or prolonged trip events are anticipated.
• Contamination of the PPTC material with certain silicone-based oils or some aggressive solvents can adversely impact the performance of the devices.
• Device performance can be impacted negatively if devices are handled in a manner inconsistent with recommended electronic, thermal, and mechanical
procedures for electronic components.
• PPTC devices are not recommended for installation in applications where the device is constrained such that its PTC properties are inhibited, for example in rigid
potting materials or in rigid housings, which lack adequate clearance to accommodate device expansion.
• Operation in circuits with a large inductance can generate a circuit voltage (Ldi/dt) above the rated voltage of the device.
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each
product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications.
Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/19