HoVB (4026) Bare Alloy Resistor Series with Outward-Folded Leads

I. Corporate Strength: Craftsmanship Builds Quality, Quality Builds the Foundation

Shenzhen Milliohm Electronics Co., Ltd., founded in 2009, is a national-level high-tech enterprise and a "specialized, refined, distinctive, and innovative" (SRDI) enterprise, deeply engaged in the R&D, production, and sales of alloy resistors, shunts, and other electronic components. Headquartered in Shenzhen, the company operates four manufacturing bases in Anhui, Foshan, Zhongshan, and Danyang, along with eight sales offices. Its production area reaches 30,000 m², with more than 400 employees, including a technical team of over 50 professional R&D engineers, providing solid support for product innovation and technical service.

Leveraging a rigorous quality management system and advanced production capabilities, the company achieves monthly production capacity of ≥400–450 KK for chip resistors, ≥150 KK for through-hole resistors, and ≥10–12 KK for shunts, efficiently meeting volume procurement demands. To date, the company has obtained multiple system certifications including ISO 9001, IATF 16949, ISO 45001, and ISO 14001. Its products have passed authoritative certifications such as AEC-Q200, CE, RoHS, REACH, and State Grid certification, with quality fully compliant with international standards and significant cost-performance advantages.

Backed by self-controlled electron beam welding equipment, high-precision machining equipment, and a rigorous process control system, Milliohm Electronics focuses on the R&D of high-precision alloy resistors. The HoVB (4026) Bare Alloy Resistor Series with Outward-Folded Leads is a concentrated embodiment of the company's technical strength and craftsmanship, combining both performance and mounting advantages to meet high-frequency, high-precision, and high-power application requirements across multiple fields.

II. Core Product: HoVB (4026) Bare Alloy Resistor with Outward-Folded Leads — Precisely Suited to Diverse Applications

The HoVB (4026) Bare Alloy Resistor with Outward-Folded Leads is purpose-designed for high-precision, high-power, and space-constrained mounting scenarios. Adopting a pure alloy material and a non-inductive structure, together with its unique outward-folded lead design, it delivers excellent electrical performance while greatly enhancing mounting convenience. It is ideally suited to equipment with space constraints and stringent performance standards, making it a preferred component for power modules, servo drives, industrial instruments, and similar applications.

(I) Core Product Advantages ：

1. High Precision and Low Temperature Drift, Stable and Reliable Performance
Backed by Milliohm Electronics' professional design capabilities and high-precision machining processes, the product achieves a tolerance of ±0.5% to ±5.0%, with a target accuracy of up to ±0.5%, ensuring accurate and stable resistance values and preventing precision deviation from affecting equipment operation. Over a wide operating temperature range of −55°C to +170°C, the temperature coefficient of resistance (TCR) is ≤±25 to ±150 ppm/°C, with minimal resistance drift, enabling adaptation to extreme temperature environments and ensuring equipment stability under complex operating conditions.

2. Non-Inductive Design, Suited to High-Frequency Applications
Featuring a non-inductive structure, the product achieves an inductance of less than 3 nH, effectively eliminating inductive effects under high-frequency conditions, preventing circuit oscillation and signal distortion, and suiting high-frequency circuits and high-power equipment. This ensures stable signal transmission and enhances equipment operating performance.

3. High Power Rating, Outstanding Overcurrent Capability
The product offers a rated power of 5 W and a maximum rated current of up to 129.09 A, enabling stable operation under high loads and performing functions such as current limiting, voltage division, and energy buffering. It meets the demands of various high-power equipment, eliminating the need for frequent component replacement and extending equipment service life.

4. Outward-Folded Lead Design, Convenient and Efficient Mounting
The unique outward-folded lead structure, combined with standardized dimensions, enables seamless compatibility with automated placement and soldering processes, greatly improving production efficiency. Meanwhile, the outward-folded lead design effectively saves PCB space, meeting the design requirements of miniaturized equipment with high mounting flexibility.

5. Premium Materials, High Durability
Utilizing pure alloy materials with copper electrodes and welded by self-controlled electron beam welding equipment, the product features robust welds and excellent electrical conductivity, effectively extending product service life. The product has undergone multiple rigorous tests, including short-time overload, temperature cycling, and mechanical shock, with a resistance change rate of ≤±0.5% and no appearance damage after testing, demonstrating outstanding stability and durability.

6. Environmental Compliance, Broad Applicability
The product complies with environmental certifications such as RoHS and REACH, contains no hazardous substances, and meets the production requirements of environmentally friendly equipment, making it widely applicable to various industry scenarios with compliance requirements.

 (II) Core Specifications in Detail：

1. Electrical Specifications
The package is 4026, with a resistance range of 0.2 mΩ to 5 mΩ, covering low-resistance requirements. The rated power is 5 W and the maximum rated current is 129.09 A, meeting the demands of high-power, high-current applications. Tolerance grades are available in ±0.5%, ±1%, and ±5%, and TCR grades in ±25 ppm/°C, ±50 ppm/°C, ±75 ppm/°C, ±100 ppm/°C, and ±150 ppm/°C, allowing flexible selection according to application requirements.

2. Material Options
Material options include Manganin (M, by default not indicated in the part number), Karma (K), FeCrAl (T), 6J16 (N), and 6J06 (H). Different materials suit the performance requirements of different applications, ensuring stable operation under various operating conditions.

3. Dimensions
The product height is uniformly 3.3 ± 0.5 mm (optimized by tooling for better dimensional consistency). Key dimensions such as W ± 0.5 and L ± 0.5 are slightly adjusted according to resistance value. The overall dimensions are compact, suiting miniaturized mounting. The resistance trimming notch enables precise tolerance adjustment without affecting other product performance. For some products, no trimming cut is required when the as-produced tolerance already meets requirements.

4. Mounting and Packaging
The recommended pad dimensions are uniformly L 10.6 mm, A 5.6 mm, B 2.5 mm, C 0.9 mm, and D 0.8 mm, compatible with automated soldering processes. Carrier tape and reel specifications are standardized, with a packaging quantity of 1,500 pcs/reel, facilitating bulk storage and use. The top tape peel strength meets industry standards, ensuring smooth placement.

5. Part Numbering
A part number example is HoVB4026-5W-3mR-0.5%-T-25ppm, corresponding in sequence to manufacturer, product category, package, rated power, resistance value, tolerance, material, and temperature coefficient. This numbering system enables convenient selection and precise matching to actual requirements.

III. Application Scenarios: Empowering Diverse Industries, Unlocking New Possibilities for Precision Applications

With its advantages in high precision, low temperature drift, high power, non-inductive design, and outward-folded lead mounting, the HoVB (4026) Bare Alloy Resistor with Outward-Folded Leads serves a wide range of industrial, electronic, and power applications, delivering stable and reliable component support for various types of equipment. Key application scenarios include:

(I) Power Modules
Used in power modules, UPS systems, and EV charging stations, the product performs load bearing, current limiting, and energy buffering functions. Its non-inductive design eliminates signal interference under high-frequency conditions, while its wide operating temperature range handles the complex environments of power equipment, ensuring stable power output and extending service life. The outward-folded lead design saves PCB space, meeting the miniaturization requirements of power module design.

(II) Industrial Control
Suited to servo motors, automation control systems, and variable-frequency drive (VFD) equipment, it is used for current sensing, current limiting, and voltage division. Its high precision and high stability ensure accurate, controllable operation, preventing equipment failures caused by resistor performance fluctuation and improving both production efficiency and product yield. The outward-folded lead design is compatible with automated placement, significantly boosting production efficiency.

(III) Precision Instruments
Suited to industrial instruments and precision measuring instruments, the product provides accurate support for signal detection and data acquisition through its high precision and low temperature drift, ensuring measurement accuracy and facilitating product upgrades in the precision instrument industry. Its compact dimensions and outward-folded lead design meet the space-constrained layout requirements of precision instruments.

(IV) Other Expanded Applications
Thanks to its high reliability and compliance, the product can be extended to automotive electronics (BMS systems, automotive controllers), military equipment (military power supplies, special equipment controllers), battery formation and grading cabinets, smart meters, and other fields, meeting the stringent requirements of diverse industries and empowering industrial upgrading across sectors.

IV. Core Advantages: Choose Milliohm for Peace of Mind

(I) Quality Assurance, Import Substitution
The HoVB (4026) Bare Alloy Resistor with Outward-Folded Leads uses independently developed alloy materials and electron beam welding processes. Supported by a rigorous process control system, its quality fully matches equivalent imported products, with tolerance, stability, and durability all meeting international standards. Its superior cost-performance effectively reduces customers' procurement costs.

(II) Ample Capacity, Efficient Delivery
With simultaneous production across four manufacturing bases, monthly capacity ranks among the industry's leading levels, enabling rapid response to volume procurement needs and ensuring on-time delivery without disrupting customers' production schedules. A well-established inventory management system also meets urgent procurement requirements.

(III) Technical Support, Attentive Service
A technical team of more than 50 professional R&D engineers provides customized solutions tailored to individual customer requirements. A dedicated operations team and FAE team deliver comprehensive online and offline support—including technical support, product selection guidance, and after-sales maintenance—responding quickly to customer needs and resolving issues efficiently.

(IV) Full Certifications, Worry-Free Compliance
Both the company and its products hold multiple authoritative certifications, complying with international environmental and quality standards and suiting industry scenarios with high compliance requirements, giving customers full confidence in procurement and use. The product has undergone multiple rounds of rigorous testing, with all performance indicators meeting international standards such as AEC-Q200 and JIS-C-5201, ensuring reliable performance.