What are the series of SUSUMU precision resistors?

SUSUMU precision resistors are known for their high precision, high stability, and specialized design. Their series covers multiple sub fields. The following is a summary of the main series and their characteristics:
1、 RG Series: Precision Thin Film Resistance Benchmark
Core positioning: SUSUMU's flagship precision series achieves ultimate precision through "ultra-thin film deposition+laser fine-tuning" technology.
Technical parameters:
The resistance tolerance is as low as ± 0.05% (some models), and the temperature coefficient (TCR) is ± 5ppm/℃.
Using alumina ceramic substrate and nickel chromium alloy film, with a thickness of only 0.1 microns, to ensure uniform resistance.
Typical applications: medical equipment (such as CT scanners), precision instruments (such as spectrometers).
2、 RGV series: High voltage and automotive grade dedicated
Core positioning: Developed for electric vehicles and industrial high-voltage scenarios, certified by AEC-Q200.
Technical parameters:
The resistance range is 120k Ω to 4.3M Ω (1210 package supports 1000V high voltage).
Inorganic passivation film technology improves long-term stability by 30%, with a temperature coefficient of ± 25ppm/℃.
Typical applications: New energy vehicle battery management system, high-voltage DC charging station.
3、 NRG series: preferred for medical and anti magnetic interference
Core positioning: Using non-magnetic materials, designed specifically for medical electronics and strong magnetic field environments.
Technical parameters:
The resistance range is 10 Ω to 1M Ω, and the rated power is 1/16W to 1/4W.
Temperature coefficient ± 5ppm/℃, inorganic protective film for sulfide corrosion prevention.
Typical applications: MRI equipment, laboratory precision measuring instruments.
4、 KRL series: expert in high current detection
Core positioning: Low resistance (milliohm level) current detection resistor, with power coverage ranging from 1/3W to 2W.
Technical parameters:
The resistance is as low as 0.005 Ω, made of manganese copper alloy material, and the temperature drift is as low as ± 50ppm/℃.
The long side electrode design optimizes heat dissipation and is suitable for high-frequency pulse current scenarios.
Typical applications: industrial motor drive, server power module.
5、 PRL Series: Miniature Current Detection Solution
Core positioning: Ultra small current detection resistor, with a size as small as 1206 (3.2 × 1.6mm).
Technical parameters:
Power of 1W, resistance tolerance of ± 1%, temperature coefficient of ± 75ppm/℃.
The thin film structure achieves low noise (below -40dB) and is suitable for precision signal acquisition.
Typical applications: fast charging circuits for smartphones, IoT sensors.
6、 RR Series: Universal Precision Resistors
Core positioning: Balancing cost-effectiveness and precision, covering mainstream consumer electronics needs.
Technical parameters:
The resistance range is 1 Ω to 10M Ω, with an accuracy of ± 0.1% to ± 1%.
Provide various packaging options such as 0603 and 0805 to adapt to automated SMT production.
Typical applications: communication equipment, household appliances.
7、 RL series: milliohm level power resistors
Core positioning: Designed specifically for high-power current detection, with a resistance as low as 0.001 Ω.
Technical parameters:
Power of 2W, made of copper alloy substrate, with strong resistance to pulse impact.
Reverse polarity design prevents welding errors and improves production yield.
Typical applications: Battery Management System (BMS), drone motor control.
8、 RM series: thin film network resistor array
Core positioning: Multi resistor integrated solution, saving circuit board space.
Technical parameters:
Integrate 2 to 8 resistors in a single package, with a resistance matching degree of ± 0.1%.
Using thin film technology, the parasitic inductance is as low as 0.05nH, suitable for high-frequency circuits.
Typical applications: ADC reference voltage division, operational amplifier feedback network.
Summary: Selection Logic of SUSUMU Precision Resistors
High precision requirements: Prioritize the RG series or NRG series (for medical scenarios).
High voltage/automotive grade: The RGV series is the only model certified by AEC-Q200.
Current detection: KRL series (high current) and PRL series (miniaturized) complement each other.
Special environment: NRG series (anti magnetic interference), RL series (reverse polarity design) solve subdivision pain points.
SUSUMU has achieved full scene coverage from laboratory precision measurement to industrial grade harsh environments through a series of layouts, and its technological depth and product segmentation capabilities are the core support of premium.