High Temperature Chip Resistors

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High heat resistance: Achieves a maximum operating temperature of 175°C (guarantees 100% a rated power output of up to 105°C).
High reliability: Guarantees that the resistor endures 1000 cycles of thermal shock testing in which it is exposed to heat ranging from -55°C to +175°C.

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This video describes the features of the High Temperature Chip Resistors in detail.
In recent years, the high heat resistance and high reliability of devices have been in strong demand in the automotive and other industrial fields.
To meet these demands, Panasonic has developed the High Temperature Chip Resistors that achieves a maximum operating temperature of 175°C, affords 100% rated power output up to 105°C, and guarantees that the resistor endures 1,000 cycles of thermal shock testing in which it is exposed to temperatures ranging from -55°C to +175°C.

Features

Panasonic's High Temperature Chip Resistors is highly resistant to heat and thermal shock. The resistor therefore contributes to the integration of in-vehicle units that are exposed to harsh thermal environments into mechanical/electrical modules and improves the reliability of product sets.

check markHigh heat resistance

Achieves a maximum operating temperature of 175℃.

As automotive components are further integrated into mechanical and electrical modules, demand has increased for a higher level of heat resistance in chip resistors that make up an automotive ECU.
Panasonic's High Temperature Chip Resistors is made of a highly heat-resistant material developed using its proprietary technology to achieve a maximum service temperature of 175°C and a rated service temperature of 105°C. Being resistant to high temperatures, it is the best chip resistor for use in automotive ECUs, which are exposed to harsh thermal environments.
The chip resistor’s improved rated service temperature of 105°C, which is higher than the conventional rated service temperature of 70°C, allows it to operate with high-power input in high-temperature conditions. In addition, its compactness allows the adoption of smaller components, thus contributing to a reduction in the mounting area.

Category temperature : -55℃ ~ 175℃
  • Maximum operating temperature : 155℃ ⇒ 175℃
  • Rated operating temperature : 70℃ ⇒ 105℃

*Guarantees 100% a rated power output of up to 105℃.

[ Load reduction curve (0402 size) ]
負荷軽減曲線 (1005サイズ)负荷降低曲线 (1005尺寸)Load reduction curve (0402 size)
[ Load reduction curve (0603 size) ]
負荷軽減曲線 (1608サイズ)负荷降低曲线 (1608尺寸)Load reduction curve (0402 size)
[ Load reduction curve (0805 size) ]
負荷軽減曲線 (2012サイズ)负荷降低曲线 (2012尺寸)Load reduction curve (0402 size)

check markHigh reliability

Guarantees that the resistor endures 1000 cycles of thermal shock testing
in which it is exposed to heat ranging from-55℃/+175℃.

A surface-mounted component undergoes repetitive temperature fluctuations, which applies stress to the component's solder connection.
The higher the ambient temperature becomes, the severer the stress grows. Under such conditions, the surface-mounted component needs to be more resistant to stress than conventional components.

With its high-heat-resistant materials and soft electrode materials, the resistor shows improved resistance to thermal shock,

 ⇒ thereby suppressing the development of solder cracks.

[ Open ratio in a thermal shock test ]
Test conditions : -55℃/+175℃ 0603 size
熱衝撃試験におけるオープン発生率

Application

Example of the resistor incorporated in vehicles

The excellent heat resistance and reliability of the resistor contributes to the creation of an integrated,
smarter mechanical/electrical in-vehicle unit system that endures harsh temperature environments.
高耐熱・高信頼性により、熱環境の厳しい車載ユニットの機電一体化・スマート化に貢献します。

Example of the resistor used in industrial applications

The resistor contributes to an improvement in the reliability of product sets used
under severe service environments where temperature changes are frequent.

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サーバー,server
Body assembly
ロボット,Body assembly

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