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TE Connectivity Metal Hybrid PPTC (MHP) Devices
Overview
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TE's innovative MHP (Metal Hybrid PPTC) technology connects a bimetal protector in parallel with a PPTC (polymeric positive temperature coefficient) device.
The initial MHP product offering, the MHP30-36 and MHP-SA series, targeted higher-current (above 30Vdc, 30A) Li-ion battery pack applications used in portable power tools and energy storage systems.
The new MHP-TA series is intended for applications with lower voltage and current ratings. As a result, TE Circuit Protection was able to downsize the MHP product to offer an ultra-compact device that meets the space requirements of the growing LiP market. In battery cell designs, the MHP-TA series helps provide resettable overtemperature protection, while utilizing the PPTC to act as a heater and to keep the bimetal latched until the fault is removed.
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MHP-TA
The MHP-TA series is based on TE Circuit Protection’s innovative MHP (Metal Hybrid PPTC) technology and is designed for applications with lower voltage and current ratings than previous series. As a result, TE was able to downsize the MHP product to offer an ultra-compact MHP-TA device that meets the space requirements of the growing Lithium Polymer (LiP) market. In battery cell designs, the MHP-TA series provides resettable overtemperature protection, while utilizing the PPTC to act as a heater and to keep the bimetal latched until the fault is removed.
TE's Metal Hybrid PPTC Devices with Thermal Activation (MHP-TA)
Series consists of ultra-low profile (L: 5.8mm x W: 3.75mm x H: 1.15mm), resettable
thermal cut-off (TCO) devices. This series offers a 9VDC rating, high
and low current types, and multiple cut-off temperature ratings.
Features
- 9VDC rating
- Two levels of current carrying capacity:
- Low current (approximately 6A hold current @25°C)
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High current (approximately 15A hold current @25°C)
- Multiple activation temperature ratings (72°C, 77°C, 82°C, 85°C, 90°C)
- Miniature size allows for compact battery pack designs
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Applications
- Battery cell protection for high-capacity Lithium Polymer and prismatic cells used in:
- Media tablets
- Ultra-thin notebook PCs
- E-readers
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Electrical Characteristics (Typical)
Low Current Type:
Electrical Rating (25ºC)
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| Contact rating: DC9V/12A (6000 cycles) |
| Max. breaking current: DC5V/40A (100 cycles) |
Part Number
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Rating (ºC)
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Operating Temperature (ºC)
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Reset Temperature (ºC)
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Reference Resistance [mohms] 25°C
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| Nominal |
Min. |
Max. |
Min. |
ΔT1 |
Typ |
Max. |
| MHP-TA6-9-72 |
72 |
67 |
77 |
≥40 |
≥7 |
10 |
15 |
| MHP-TA6-9-77 |
77 |
72 |
82 |
≥40 |
≥10 |
10 |
15 |
| MHP-TA6-9-82 |
82 |
77 |
87 |
≥40 |
≥10 |
10 |
15 |
| MHP-TA6-9-85 |
85 |
80 |
90 |
≥40 |
≥10 |
10 |
15 |
1. ΔT is the minimum temperature differential between the actual operation temperature of the device and the reset temperature.
High Current Type:
Electrical Rating (25ºC)
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| Contact rating: DC9V/25A (6000 cycles) |
| Max. breaking current: DC5V/80A (100 cycles) |
Part Number
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Rating (ºC)
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Operating Temperature (ºC)
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Reset Temperature (ºC)
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Reference Resistance [mohms] 25°C
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| Nominal |
Min. |
Max. |
Min. |
ΔT1 |
Typ |
Max. |
| MHP-TA15-9-72 |
72 |
67 |
77 |
≥40 |
≥7 |
10 |
5.0 |
| MHP-TA15-9-77 |
77 |
72 |
82 |
≥40 |
≥10 |
10 |
5.0 |
| MHP-TA15-9-82 |
82 |
77 |
87 |
≥40 |
≥10 |
10 |
5.0 |
| MHP-TA15-9-85 |
85 |
80 |
90 |
≥40 |
≥10 |
10 |
5.0 |
| MHP-TA15-9-90 |
90 |
85 |
95 |
≥40 |
≥10 |
2.5
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5.0
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1. ΔT is the minimum temperature differential between the actual operation temperature of the device and the reset temperature.
MHP-TA Design Concept
Dimensions
for MHP-TA Devices
in Millimeters
A
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B
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C
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D
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E
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F
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Min.
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Max.
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Min.
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Max.
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Min.
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Max.
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Min.
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Max.
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Min.
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Max.
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Min.
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10.9
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11.4
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2.6
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2.8
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2.6
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2.8
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0.6
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0.8
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0.6
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0.8
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1.15
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