Panasonic's resistor product line is renowned for its high reliability, precision performance, and wide environmental adaptability, covering high-end fields from general electronics to automotive, industrial automation, and more. The following is an overview of the classification and characteristics of its core resistor series, systematically summarized by technical features and application scenarios:
1、 Basic film patch resistor series
Universal ERJ series
Panasonic's main product line covers power from 1/8W to 1W, with a resistance range of 1 Ω -10M Ω. It is characterized by high stability and excellent temperature coefficient (typical ± 100ppm/° C), suitable for conventional designs such as consumer electronics and power management.
Subdivision models:
ERJV: With a power of up to 2W, it is heat-resistant and vibration resistant, specifically optimized for automotive electronics and industrial equipment.
ERJQ: Accuracy ± 0.5%, low-temperature drift (± 25ppm/° C), used for high-precision scenarios such as medical instruments.
ERJT: Ultra high power (3W+), resistant to high temperature and high humidity environments, suitable for power electronic systems.
High voltage thin film resistor series
For the design of high voltage circuits ranging from 200V to 500V, to suppress the risk of arc breakdown:
ERF series: rated voltage of 500V, used for power modules and high voltage side of medical equipment.
ERL series: Balancing high power and high voltage (such as inverters and motor drives), with outstanding heat dissipation performance.
2、 High power and special working condition resistor series
Metal alloy current sampling resistor
Made of alloy material, with a resistance as low as 0.1m Ω, resistant to high current impact, and excellent temperature stability. Applied to scenarios requiring high-precision current detection, such as electric vehicle BMS and industrial motor control.
High power thick film resistor (ERJY series)
Strong power carrying capacity (up to 1W in 1206 size), resistance range of 0.1m Ω - hundred ohms, suitable for power management and base station equipment.
External regenerative resistor
The model DV0PM20048 (120 Ω/80W) is designed specifically for servo motors (such as the MINAS A6/A5 series) and is used for energy release in energy consuming braking systems.
3、 High precision and miniaturized resistor series
Metal film wafer resistors (ERA series)
Under the packaging of 0603, the accuracy reaches ± 0.1%, the temperature coefficient is ± 15ppm/° C, and it complies with the AECQ200 automotive standard. Suitable for automotive ECU and precision instruments.
Miniature resistors (ERG/ERJZ series)
ERG series: ultra small size (such as 0402), used for wearable devices;
ERJZ series: ultra-thin design, combined with sulfur resistance, suitable for compact spaces such as mobile phones.
4、 Special resistor series for harsh environments
Anti sulfurization resistor (ERJM/ERJX series)
Resist sulfur-containing gas corrosion through special materials and packaging processes:
ERJM series: resistant to high temperatures of 155 ℃, used for electronic units in engine compartments;
ERJX series: precision upgrade, suitable for aerospace sensors.
Surge resistant resistor
Strengthening the structure to resist instantaneous high voltage impacts (such as lightning strikes and power switch surges), divided into standard and high-precision types, applied to communication base stations and industrial control systems.
5、 Low resistance application resistor series
Thick film low resistance resistor (ERJX series)
The resistance is as low as 0.1m Ω, with an accuracy of ± 0.5%, and excellent noise suppression. It is used for power current detection and battery management.
Thin film low resistance resistor (ERJ series derivative model)
Combining low resistance models with thin film technology (such as 1m Ω -10 Ω), balancing accuracy and power density.
Comparison of key parameters of mainstream resistor series
The following table provides an overview of the core parameters and application positioning of Panasonic's main resistor series:
|Series name | Resistance range | Power level | Temperature coefficient | Main application areas|
|ERJ Universal Series | 1 Ω 10M Ω | 1/8W1W | ± 100ppm/° C | Consumer Electronics, Industrial Control|
|ERJV High Power | 1 Ω 1M Ω | Maximum 2W | ± 200ppm/° C | Automotive Electronics, Aerospace|
|ERJQ High Precision | 10 Ω 1M Ω | 1/4W1W | ± 25ppm/° C | Medical Equipment, Precision Measurement|
|ERF High Voltage | 1 Ω 10M Ω | 1/8W1W | ± 150ppm/° C | Power Module, Medical High Voltage Equipment|
|ERA Metal Film | 1 Ω 1M Ω | 0.05W0.25W | ± 15ppm/° C | Automotive ECU, Precision Instruments|
|ERJX sulfur resistance | 1 Ω 100k Ω | 1/8W1W | ± 100ppm/° C | Industrial equipment, sulfur-containing environment|
|ERJY thick film low resistance | 0.1m Ω 100 Ω | maximum 1W | ± 200ppm/° C | power management, current detection|
Panasonic's resistor technology layout revolves around "environmental adaptability" and "performance refinement":
General scenario: ERJ series dominates with high cost-effectiveness;
Extreme environment: reliable protection provided by series such as anti sulfurization (ERJM), anti surge, high voltage (ERF), etc;
Precision requirements: ERA, ERJQ, etc. achieve micro European level accuracy and near zero temperature drift.
Its product matrix continues to extend towards automotive electronics (AECQ200 full coverage), green energy (such as regenerative resistors), and miniaturized devices, in line with the high integration and high reliability evolution trend of the electronics industry.