What are the series of SUSUMU metal foil resistors?

SUSUMU metal foil resistors are known for their low temperature coefficient, high precision, and sulfur resistance. Their product line mainly revolves around the KRL series, supplemented by the KRL-KIT resistor kit, forming a full chain solution covering research and development, small batch production, and mass production needs. The following is a summary of specific series and technical features:
1、 KRL series: Core product line of metal foil resistors
The KRL series is the main force of SUSUMU metal foil resistors, providing diverse choices from micro packaging to high-power applications, covering scenarios such as automotive electronics, industrial control, medical equipment, etc.
1. Specialized model for precision current detection
KRL1220E-M-R039-F-T5
Package: 0805 (2012 metric)
Resistance: 0.039 Ω, accuracy ± 1%
Features: Low temperature drift (± 50ppm/℃), sulfur resistant design, suitable for current sampling in medical equipment and precision instruments.
KRL2012E-M-R010-F-T5
Package: 0805
Resistance: 0.01 Ω, accuracy ± 1%
Features: Combining ultra-low resistance and high precision, used for current detection in new energy vehicle battery management systems (BMS).
2. High power and automotive grade models
KRL6432E-M-R010-F-T1
Package: 2512 (6432 metric)
Resistance: 10m Ω, power 3W
Certification: Passed AEC-Q200 automotive grade standard, capable of withstanding extreme temperatures from -55 ℃ to+155 ℃, suitable for industrial motor drives and on-board chargers (OBC).
KRL1632E-M-R270-F-T5
Package: 1206 (3216 metric)
Resistance: 0.27 Ω, accuracy ± 1%, power 0.75W
Application: Medium power current detection in server power supply and 5G base stations.
3. Miniaturization and universal models
KRL1220E-M-R470-F-T5
Package: 0805
Resistance: 0.47 Ω, accuracy ± 1%, power 0.5W
Advantages: Compact design (2.0mm × 1.25mm) and stability balance, suitable for universal current detection of consumer electronics and IoT devices.
2、 KRL-KIT Series: A Tool for Research and Small Batch Production
For R&D stage or small batch requirements, SUSUMU provides pre packaged resistor kits that include multiple resistance combinations for quick selection and testing.
1. KRL7638-KIT-FILE
Content: 760 resistors (19 different resistance values, each with 40 resistors), with a resistance range of 0.001 Ω to 0.47 Ω and a power of 4W.
Package: Width 3015 (7638 metric)
Application: Laboratory prototype design, educational institution teaching suite.
2. KRL6432-KIT-FILE
Content: 1120 resistors (28 different resistance values), power 3W, surface mount packaging.
Features: Covering the range of low to medium resistance values, supporting accuracy levels of ± 1%, ± 2%, and ± 5%, suitable for automated surface mount production.
3、 Technical commonality: Core advantages of metal foil technology
Low Temperature Coefficient (TCR): Typical value ± 50ppm/℃, ensuring stable resistance within the range of -55 ℃ to+155 ℃.
Sulfur and corrosion resistance: using inorganic protective film to extend service life, suitable for harsh industrial environments.
High power processing capability: Some models have a power of up to 3W, meeting the requirements of high current detection.
Vehicle level certification: AEC-Q200 certified models (such as KRL6432E) ensure the reliability of automotive electronics.
4、 Selection logic and typical scenarios
Automotive Electronics: Prioritize the KRL6432E series certified by AEC-Q200, which can withstand extreme temperatures and vibrations.
Medical equipment: KRL1220E-M-R039-F-T5 and other low resistance models ensure high-precision current sampling.
Industrial control: KRL1632E-M-R270-F-T5 balances power and size, suitable for scenarios such as motor drive.
R&D stage: KRL-KIT kit provides multiple resistance combinations to shorten the prototype development cycle.
SUSUMU metal foil resistors achieve full scene coverage from laboratory to mass production through the combination of KRL series and KRL-KIT kit. Its technological depth and product segmentation ability are the core competitiveness of the high-end market.