PolySwitch Resettable Devices
– Strap Battery Devices
PolySwitch Resettable Devices
Strap Battery Devices
Tyco Electronics, a pioneer of polymeric positive
temperature coefficient resettable devices, has developed
several material platforms to help protect battery
applications. Each of these material platforms offers
different performance characteristics, allowing the
engineer greater design flexibility. PolySwitch devices
for battery protection include SRP, LTP, LR4, VTP, VLP,
VLR and MXP series, disc, and special application strap
devices.
Benefits
• Many material platforms and device form factors
give engineers more design flexibility
• Compatible with high-volume electronics assembly
• Assists in meeting regulatory requirements
• Low resistance devices increase battery operating
time
Features
• RoHS compliant
• Lead free versions of all devices are available
• Broad range of resettable devices available
• Current ratings from 0.7A to 13A
• Voltage ratings from 6V to 30V
• Agency recognition, UL, CSA, TÜV
• Fast time-to-trip
• Low resistance
10
Applications
• Mobile phone battery packs
• Cordless phone battery packs
• Mobile radio battery packs
• Computer battery packs
• Camcorder battery packs
• Portable music player battery packs
• Power tools (charge line)
171
Application Selection Guide for Strap Battery Devices
The guide below lists PolySwitch strap battery devices which are typically used in these applications.
The following pages contain the specifications for the part numbers recommended below.
Once a device is selected, the user should evaluate and test each product for its intended application.
PolySwitch Resettable Devices — Key Device Selection Criteria
Protection Application
Mobile phone battery packs
Additional Comments
Li-ion
Installation Method
Flexprint
Surface Mount
Prismatic
Cordless phone battery packs
NiMH
Cylindrical
Lowest Resistance
miniSMDE190F
Lowest Thermal Cut-off
––
refer to Surface-mount section of this catalog
MXP190BB
VLP210F
SRP175F
VLR175F
VTP170F
Mobile radio battery packs
NiMH
Cylindrical
LR4-380F
SRP350F
LTP340F
Computer battery packs
NiMH
Li-ion
Cylindrical
Cylindrical
Prismatic
LR4-900F
LR4-1300SSF
Consult local Rep
VLP270F
LR4-380F
––
––
Consult local Rep
VTP210GF
––
VLR175F
––
custom VTP
Camcorder battery packs
NiMH or Li-ion
Prismatic
PDA battery packs
Li-ion
Prismatic
VLP220F
VTP175F
Power tools (charge line)
NiCd, NiMH or Li-ion
Cylindrical
custom LR4
Table B1
Product Series - Current Rating, Voltage Rating / Typical Resistance for
Strap Battery Devices
VLR
VLP
VTP
LTP
MXP
SRP
LR4
miniSMDE
Typical Activation Temperature
85°C
—
—
—
—
12V/0.025Ω
12V/0.024Ω
—
—
—
—
—
12V/0.015Ω
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
90°C
—
—
—
—
—
—
—
—
—
16V/0.024Ω
16V/0.023Ω
—
—
—
16V/0.015Ω
—
—
—
—
—
—
—
—
—
—
—
—
90°C
—
—
16V/0.054Ω
—
16V/0.041Ω
16V/0.040Ω
—
—
—
16V/0.024Ω
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
110°C
15V/0.150Ω
24V/0.100Ω
—
—
—
—
24V/0.054Ω
24V/0.044Ω
—
—
—
—
—
24V/0.034Ω
—
—
24V/0.022Ω
—
—
—
—
—
—
—
—
—
—
120°C
—
—
—
—
—
—
—
6V/0.010Ω
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
125°C
—
—
—
15V/0.123Ω
—
15V/0.070Ω
—
—
30V/0.045Ω
—
—
—
—
—
—
—
—
30V/0.024Ω
—
30V/0.018Ω
—
—
—
—
—
—
—
125°C
—
—
—
—
—
—
—
15V/0.056Ω
—
—
—
—
—
15V/0.031Ω
—
—
—
—
15V/0.020Ω
—
20V/0.016Ω
20V/0.013Ω
20V/0.011Ω
20V/0.009Ω
—
20V/0.008Ω
20V/0.006Ω
110°C
—
—
—
—
—
—
—
16V/0.032Ω
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Hold
Current (A)
0.70
1.00
1.10
1.20
1.70
1.75
1.80
1.90
2.00
2.10
2.20
10
2.30
2.40
2.60
2.70
3.00
3.40
3.50
3.80
4.20
4.50
5.50
6.00
7.30
8.80
9.00
13.00
172
RoHS Compliant, ELV Compliant
PolySwitch Resettable Devices
– Strap Battery Devices
Table B2
Thermal Derating for Strap Battery Devices
[Hold Current (A) at Ambient Temperature (°C)]
Maximum Ambient Temperature
-40°C
-20°C
0°C
20°C
25°C
40°C
50°C
60°C
70°C
80°C
85°C
Part Number
Amps
85°C Typical Activation
VLR*
VLR170F
VLR170LF
VLR170UF
VLR175F
VLR175LF
VLR175UF
VLR230F
90°C Typical Activation
VLP*
VLP210F
VLP220F
VLP270F
VTP*
VTP110F
VTP170F
VTP170SSF
VTP170XF
VTP170XSF
VTP175F
VTP175LF
VTP175UF
VTP210GF
VTP210SF
VTP210SLF
2.0
3.2
3.2
3.2
3.2
3.2
3.2
3.2
4.1
4.1
4.1
1.7
2.7
2.7
2.7
2.7
2.7
2.7
2.7
3.5
3.5
3.5
1.4
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.9
2.9
2.9
1.12
1.80
1.80
1.80
1.80
1.84
1.84
1.84
2.26
2.26
2.26
1.10
1.70
1.70
1.70
1.70
1.75
1.75
1.75
2.10
2.10
2.10
0.85
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.6
1.6
1.6
0.75
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.3
1.3
1.3
0.7
0.8
0.8
0.8
0.8
0.8
0.8
0.8
1.0
1.0
1.0
0.4
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.7
0.7
0.7
0.2
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.4
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
4.3
4.5
5.6
3.6
3.8
4.7
2.9
3.0
4.0
2.31
2.45
3.05
2.10
2.20
2.70
1.6
1.7
2.2
1.3
1.4
1.7
1.0
1.1
1.4
0.6
0.7
0.9
0.3
0.3
0.4
0.1
0.1
0.1
3.5
3.5
3.5
3.5
3.5
3.5
5.0
2.9
2.9
2.9
2.9
2.9
2.9
4.2
2.4
2.4
2.4
2.4
2.4
2.4
3.4
1.84
1.84
1.84
1.87
1.87
1.87
2.52
1.70
1.70
1.70
1.75
1.75
1.75
2.30
1.2
1.2
1.2
1.3
1.3
1.3
1.7
1.0
1.0
1.0
1.0
1.0
1.0
1.3
0.7
0.7
0.7
0.8
0.8
0.8
0.9
0.3
0.3
0.3
0.3
0.3
0.3
0.4
—
—
—
—
—
—
—
—
—
—
—
—
—
—
110°C Typical Activation
LTP
LTP070F
LTP100SF
LTP180LF
LTP190F
LTP260F
LTP340F
miniSMDE
miniSMDE190F
3.16
2.74
2.2
1.9
1.74
1.48
1.27
1.10
0.80
0.50
0.35
1.1
1.8
3.1
3.3
4.3
5.5
1.0
1.6
2.6
2.8
3.7
4.7
0.8
1.4
2.2
2.4
3.1
4.0
0.7
1.0
1.8
1.9
2.6
3.4
0.65
0.99
1.67
1.79
2.42
3.17
0.5
0.8
1.3
1.4
1.9
2.6
0.4
0.7
1.1
1.2
1.6
2.2
0.3
0.6
0.9
1.1
1.4
1.9
0.2
0.4
0.6
0.7
1.1
1.5
0.2
0.3
0.4
0.5
0.8
1.1
0.1
0.2
0.3
0.4
0.6
0.9
120°C Typical Activation
MXP*
MXP190BB
—
—
2.6
—
1.90
—
—
0.85
—
—
—
10
2.5
3.4
3.4
4.9
4.9
5.8
6.9
7.8
7.8
9.5
11.4
16.2
2.3
3.1
3.1
4.4
4.4
5.3
6.2
7.1
7.1
8.6
10.0
14.5
1.9
2.6
2.6
3.8
3.8
4.5
5.5
6.0
6.0
7.3
9.0
13.0
1.86
2.54
2.54
3.64
3.64
4.38
5.32
5.86
5.86
7.13
8.50
12.40
1.6
2.2
2.2
3.3
3.3
3.9
4.7
5.2
5.2
6.3
7.5
11.1
1.5
2.0
2.0
3.0
3.0
3.6
4.3
4.7
4.7
5.7
6.8
10.3
1.4
1.9
1.9
2.8
2.8
3.3
4.0
4.4
4.4
5.4
6.2
9.5
1.2
1.7
1.7
2.5
2.5
2.9
3.6
3.9
3.9
4.7
5.5
8.6
1.1
1.4
1.4
2.3
2.3
2.6
3.2
3.4
3.4
4.2
4.9
7.7
1.0
1.3
1.3
2.1
2.1
2.4
3.0
3.2
3.2
4.0
4.5
7.2
125°C Typical Activation
LR4
LR4-190F
LR4-260F
LR4-260SF
LR4-380F
LR4-380XF
LR4-450F
LR4-550F
LR4-600F
LR4-600XF
LR4-730F
LR4-900F
LR4-1300SSF
2.8
3.8
3.8
5.4
5.4
6.5
7.6
8.7
8.7
10.5
12.7
17.9
* Product electrical characteristics determined at 25°C.
RoHS Compliant, ELV Compliant
173
Table B2
Thermal Derating for Strap Battery Devices
[Hold Current (A) at Ambient Temperature (°C)]
Maximum Ambient Temperature
-40°C
-20°C
0°C
20°C
25°C
40°C
50°C
60°C
70°C
80°C
85°C
Cont’d
Part Number
SRP
SRP120F
SRP120LF
SRP120SF
SRP175F
SRP175LF
SRP175SF
SRP200F
SRP350F
SRP420F
Amps
1.9
1.9
1.9
2.5
2.5
2.5
3.1
5.3
6.3
1.7
1.7
1.7
2.2
2.2
2.2
2.8
4.8
5.7
1.5
1.5
1.5
2.0
2.0
2.0
2.5
4.3
5.1
1.20
1.20
1.20
1.75
1.75
1.75
2.00
3.50
4.20
1.17
1.17
1.17
1.68
1.68
1.68
1.97
3.44
4.11
1.0
1.0
1.0
1.4
1.4
1.4
1.7
3.0
3.6
0.9
0.9
0.9
1.3
1.3
1.3
1.5
2.7
3.3
0.8
0.8
0.8
1.2
1.2
1.2
1.4
2.5
3.0
0.6
0.6
0.6
1.0
1.0
1.0
1.2
2.1
2.6
0.5
0.5
0.5
0.9
0.9
0.9
1.0
1.8
2.2
0.4
0.4
0.4
0.8
0.8
0.8
0.9
1.7
2.1
Figure B1 Thermal Derating Curve for Strap Battery Devices
A =
B =
C =
D =
E =
LR4
SRP
LTP
VTP VLP MXP
,
,
VLR
Figure B1
200
180
E
D
C
B
A
% of Rated Hold and Trip Current
160
140
120
100
80
60
40
20
0
-50
80
E
A
B
C
D
-40
-30
-20
-10
0
10
20
30
40
50
60
70
90
Temperature (˚C)
Table B3 Electrical Characteristics for Strap Battery Devices
10
Part
Number
I
H
(A)
I
T
(A)
V
MAX
(V
DC
)
I
MAX
(A)
P
D Typ
(W)
Max. Time-to-trip
(A)
(s)
R
MIN
(Ω)
R
Typ
(Ω)
R
MAX
(Ω)
R
Tripped Typ
(Ω)
R
1MAX
(Ω)
Figure for
Dimensions
85°C Typical Activation
VLR*
VLR170F
VLR170LF
VLR170UF
VLR175F
VLR175LF
VLR175UF
VLR230F
1.70
1.70
1.70
1.75
1.75
1.75
2.30
4.1
4.1
4.1
4.2
4.2
4.2
5.0
12
12
12
12
12
12
12
100
100
100
100
100
100
100
1.4
1.4
1.4
1.4
1.4
1.4
1.4
8.50
8.50
8.50
8.75
8.75
8.75
10.00
5.0
5.0
5.0
5.0
5.0
5.0
5.0
0.018
0.018
0.018
0.017
0.017
0.017
0.012
0.025
0.025
0.025
0.024
0.024
0.024
0.015
0.032
0.032
0.032
0.031
0.031
0.031
0.018
0.050
0.050
0.050
0.048
0.048
0.048
0.030
0.064
0.064
0.064
0.062
0.062
0.062
0.036
B3
B3
B5
B3
B3
B5
B3
90°C Typical Activation
VLP*
VLP210F
VLP220F
VLP270F
2.10
2.20
2.70
5.0
5.3
6.5
16
16
16
60
60
60
0.8
0.8
1.2
10.50
11.00
13.50
5.0
5.0
5.0
0.018
0.017
0.012
0.024
0.023
0.015
0.030
0.029
0.018
0.048
0.046
0.030
0.060
0.058
0.036
B2
B3
B3
* Product electrical characteristics determined at 25°C.
174
RoHS Compliant, ELV Compliant
PolySwitch Resettable Devices
– Strap Battery Devices
Table B3 Electrical Characteristics for Strap Battery Devices
Part
Number
VTP*
VTP110F
VTP170F
VTP170SSF
VTP170XF
VTP170XSF
VTP175F
VTP175LF
VTP175UF
VTP210GF
VTP210SF
VTP210SLF
1.10
1.70
1.70
1.70
1.70
1.75
1.75
1.75
2.10
2.10
2.10
2.7
3.4
3.4
3.4
3.4
3.6
3.6
3.6
4.7
4.7
4.7
16
16
16
16
16
16
16
16
16
16
16
100
100
100
100
100
100
100
100
100
100
100
0.7
1.0
1.0
0.7
0.7
0.8
0.8
0.8
1.2
1.2
1.2
5.50
8.50
8.50
8.50
8.50
8.75
8.75
8.75
10.00
10.00
10.00
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
0.038
0.030
0.030
0.030
0.030
0.029
0.029
0.029
0.018
0.018
0.018
0.054
0.041
0.041
0.041
0.041
0.040
0.040
0.040
0.024
0.024
0.024
0.070
0.052
0.052
0.052
0.052
0.051
0.051
0.051
0.030
0.030
0.030
0.108
0.082
0.082
0.082
0.082
0.080
0.080
0.080
0.048
0.048
0.048
0.140
0.105
0.105
0.105
0.105
0.102
0.102
0.102
0.060
0.060
0.060
B5
B2
B8
B3
B4
B3
B3
B5
B3
B4
B4
I
H
(A)
I
T
(A)
V
MAX
(V
DC
)
I
MAX
(A)
P
D Typ
(W)
Max. Time-to-trip
(A)
(s)
R
MIN
(Ω)
R
Typ
(Ω)
R
MAX
(Ω)
R
Tripped Typ
(Ω)
R
1MAX
(Ω)
Cont’d
Figure for
Dimensions
110°C Typical Activation
LTP
LTP070F
LTP100SF
LTP180LF
LTP190F
LTP260F
LTP340F
miniSMDE
miniSMDE190F
1.90
3.8
16
100
1.5
10.00
2.0
0.024
0.032
0.040
0.060
0.080
†
B13
120°C Typical Activation
MXP*
MXP190BB
1.90
4.9
6
50
0.4
9.50
2.0
0.007
0.010
0.015
0.015
0.024
B14
125˚C Typical Activation
LR4
LR4-190F
LR4-260F
LR4-260SF
LR4-380F
LR4-380XF
LR4-450F
LR4-550F
LR4-600F
LR4-600XF
LR4-730F
LR4-900F
LR4-1300SSF
SRP
SRP120F
SRP120LF
SRP120SF
SRP175F
SRP175LF
SRP175SF
SRP200F
SRP350F
SRP420F
1.20
1.20
1.20
1.75
1.75
1.75
2.00
3.50
4.20
2.7
2.7
2.7
3.8
3.8
3.8
4.4
6.3
7.6
15
15
15
15
15
15
30
30
30
100
100
100
100
100
100
100
100
100
0.8
0.8
0.8
0.9
0.9
0.9
1.6
1.9
2.2
6.00
6.00
6.00
8.75
8.75
8.75
10.00
20.00
20.00
5.0
5.0
5.0
5.0
5.0
5.0
4.0
3.0
6.0
0.085
0.085
0.085
0.050
0.050
0.050
0.030
0.017
0.012
0.123
0.123
0.123
0.070
0.070
0.070
0.045
0.024
0.018
0.160
0.160
0.160
0.090
0.090
0.090
0.060
0.031
0.024
0.170
0.170
0.170
0.093
0.093
0.093
0.075
0.040
0.030
0.220
0.220
0.220
0.120
0.120
0.120
0.100
0.050
0.040
B6
B6
B11
B6
B6
B11
B6
B6
B6
1.90
2.60
2.60
3.80
3.80
4.50
5.50
6.00
6.00
7.30
9.00
13.00
3.9
5.8
5.8
8.3
8.3
8.9
10.5
11.7
11.7
14.1
16.7
21.2
15
15
15
15
15
20
20
20
20
20
20
20
100
100
100
100
100
100
100
100
100
100
100
100
0.8
1.0
1.0
1.2
1.2
1.4
2.0
1.7
1.7
1.9
3.0
2.2
9.50
13.00
13.00
19.00
19.00
22.50
27.50
30.00
30.00
30.00
45.00
65.00
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
0.0390
0.0200
0.0200
0.0130
0.0130
0.0110
0.0090
0.0070
0.0075
0.0060
0.0060
0.0035
0.0560
0.0310
0.0310
0.0200
0.0200
0.0160
0.0130
0.0110
0.0120
0.0090
0.0080
0.0060
0.0720
0.0420
0.0420
0.0260
0.0260
0.0200
0.0160
0.0140
0.0140
0.0120
0.0100
0.0065
0.079
0.046
0.046
0.028
0.028
0.022
0.018
0.015
0.015
0.011
0.011
0.008
0.102
0.063
0.063
0.037
0.037
0.028
0.022
0.019
0.019
0.015
0.014
0.009
B9
B9
B10
B9
B9
B9
B9
B9
B9
B9
B9
B12
0.70
1.00
1.80
1.90
2.60
3.40
1.45
2.50
3.80
4.20
5.20
6.80
15
24
24
24
24
24
100
100
100
100
100
100
0.7
0.9
1.0
1.5
1.3
1.6
3.50
5.00
9.00
10.00
13.00
17.00
5.0
7.0
2.9
3.0
5.0
5.0
0.100
0.070
0.040
0.030
0.025
0.016
0.150
0.100
0.054
0.044
0.034
0.022
0.200
0.130
0.068
0.057
0.042
0.027
0.300
0.200
0.108
0.088
0.068
0.044
0.340
0.260
0.120
0.100
0.076
0.050
B6
B7
B6
B6
B6
B6
10
* Product electrical characteristics determined at 25°C.
† R
1MAX
value for this device is the maximum resistance of the device at 20°C one hour after reflow.
Notes:
I
H
I
T
V
MAX
I
MAX
P
D
R
MIN
R
Typ
R
Tripped Typ
R
MAX
: Hold current: maximum current device will pass without interruption in 20°C still air unless otherwise specified.
: Trip current: minimum current that will switch the device from low resistance to high resistance in 20°C still air unless otherwise specified.
: Maximum voltage device can withstand without damage at rated current.
: Maximum fault current device can withstand without damage at rated voltage.
: Power dissipated from device when in the tripped state in 20°C still air unless otherwise specified.
: Minimum resistance of device as supplied at 20°C unless otherwise specified.
: Typical resistance of device as supplied at 20°C unless otherwise specified.
: Typical resistance, measured at 20°C unless otherwise specified, of device one hour after being tripped the first time.
: Maximum resistance of device as supplied at 20°C unless otherwise specified.
RoHS Compliant, ELV Compliant
175
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