What are the manufacturers and models of 2512 1.05R surface mount resistors?
Date:2025-07-24
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The following is a summary of resistor models and manufacturer information for the 2512 package (approximately 6.4mm × 3.2mm in size) with a resistance value close to 1.05 Ω (1.05R). Due to the non-standard resistance value of 1.05 Ω, the actual selection needs to be combined with accuracy requirements (such as covering a range of 1.00 Ω -1.10 Ω within ± 5%) or achieved through customization. List the relevant models and features of mainstream manufacturers by type for reference:
1.05R is an unconventional resistance standard of E-96 standard, which users try to avoid when selecting. However, it is unavoidable in many products. Below are two recommended 2512 1.05R high-power anti sulfurization and anti surge metal film resistors.
Model: EGM25FU1R05DDS
Volume: 2512
Resistance: 1.05R
Power: 3.5W
Accuracy: ± 1%
Temperature drift: ± 50ppm/℃
Material: Metal film
Functional features: High power, high surge resistance capability
Model: EAM25FS1R05DDS
Volume: 2512
Resistance: 1.05R
Power: 2W
Accuracy: ± 1%
Temperature drift: ± 50ppm/℃
Material: Metal film
Functional characteristics: High power and high sulfur resistance
1、 Universal thick film resistor (1 Ω± 5%, covering 1.05 Ω)
1. CRH2512 series
Model example: CRH2512J1R00E04`
Manufacturers: Bourns, Venkel, etc
Parameters: 1 Ω± 5%, 2W, temperature coefficient ± 100ppm/° C
Applicable scenarios: Conventional circuit current limiting and voltage division, high cost-effectiveness.
2. CUH series (high power)
Model example: CUH2512J1R00E04Z`
Manufacturer: Yageo
Parameters: 1 Ω± 5%, 3W, optimized heat dissipation design
Applicable scenarios: power management, occasions requiring higher power.
2、 Anti surge/pulse type (1 Ω± 5%)
1. AS series (thick film anti surge)
Model example: AS2512J1R00E04H`
Manufacturer: Liz
Parameters: 1 Ω± 5%, 2W, capable of withstanding instantaneous high-energy pulses
Applicable scenarios: Switching power supplies, motor drives, and other circuits that are susceptible to impact.
2. TGL series (metal film anti surge)
Model example: TGL251220F1R00E04Z`
Manufacturer: Tyohm
Parameters: 1 Ω± 1%, 2W, temperature coefficient ± 50ppm/° C, better stability of metal film
Applicable scenarios: high-precision and surge resistant scenarios (such as industrial control).
3. Anti sulfurization/corrosion type (1 Ω± 5%)
1. ST series
Model example: ST2512J1R00E04A`
Manufacturer: Shunhai Technology
Parameters: 1 Ω± 5%, 1W, special end electrode resistant to sulfide corrosion
Applicable scenarios: sulfur-containing environments (rubber seals, industrial waste gas).
4、 Customized solution for special resistance values
If a strict requirement of 1.05 Ω is needed, the following paths can be selected:
1. Accuracy coverage: Select a 1 Ω resistor with ± 5% accuracy (actual range 0.95 Ω– 1.05 Ω), such as' CR2512JW1R0ELF '(Bourns, 1 Ω± 5%, 2W).
2. Parallel/series combination: For example, 1 Ω+0.05 Ω resistor combination is implemented.
3. Direct customization: Shenzhen Shunhai Technology Co., Ltd. provides resistance requirements and supports non-standard production.
Selection suggestion table
|Typical Model | Power | Accuracy | Key Features|
|EGM25FU1R05DDS | 3.5W | ± 1% | Metal film high surge resistance|