VC3D10 Equivalent & Substitute Parts Reference

Part Overview

The VC3D10 is a 10 Ohm ±5% 3W axial wirewound resistor manufactured by Honeywell Sensing and Productivity Solutions. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The VC3D10 features non-inductive construction suitable for applications requiring stable resistance performance across temperature ranges. Identification of compatible substitutes ensures design flexibility and supply chain resilience for legacy and new applications utilizing this resistance value and power rating.

Key Parameters

Parameter	Value	Significance for Substitution
Resistance Value	10 Ohms	Primary functional requirement; must match exactly
Power Rating	3W	Thermal dissipation capability; must equal or exceed
Tolerance	±5%	Accuracy specification; substitute tolerance must be equal or tighter
Composition	Wirewound	Construction type; determines frequency response and noise characteristics
Features	Non-Inductive	Electrical characteristic; critical for high-frequency and precision applications
Package Type	Axial	Form factor; determines PCB layout compatibility and mounting method
Temperature Coefficient	±150ppm/°C	Resistance stability over temperature; substitute value must be equal or superior
RoHS Compliance	Compliant	Environmental and regulatory requirement; substitute must maintain compliance

Substitute Part Grouping Explanation

Substitution of the VC3D10 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 10 Ohms (exact match required)
Power rating: 3W (substitute must support equal or greater dissipation)
Package type: Axial (form factor and termination compatibility)
Composition: Wirewound (electrical performance characteristics)
Non-inductive feature: Required (frequency response and noise performance)

Acceptable Improvement Parameters:

Tolerance: Substitute tolerance of ±1% is tighter than the original ±5%, providing improved accuracy without functional incompatibility
Temperature coefficient: Substitute value of ±50ppm/°C is superior to the original ±150ppm/°C, providing enhanced temperature stability
Product status: Active status of substitute ensures ongoing availability and supply chain support

Compliance Requirements:

RoHS compliance maintained in substitute part
ECCN classification (EAR99) consistent across parts

The WND10RFET from Ohmite meets all mandatory matching parameters while providing superior tolerance and temperature stability characteristics.

Parameter Comparison

Parameter	VC3D10 (Honeywell)	WND10RFET (Ohmite)	Compatibility
Resistance Value	10 Ohms	10 Ohms	Exact Match
Tolerance	±5%	±1%	Substitute Superior
Power Rating	3W	3W	Exact Match
Composition	Wirewound	Wirewound	Exact Match
Features	Non-Inductive	Non-Inductive	Exact Match
Temperature Coefficient	±150ppm/°C	±50ppm/°C	Substitute Superior
Operating Temperature Range	Not specified	-55°C ~ 150°C	Substitute Specified
Package / Case	Axial	Axial	Exact Match
Size / Dimension	0.220" Dia x 0.500" L (5.59mm x 12.70mm)	0.217" Dia x 0.533" L (5.50mm x 13.54mm)	Mechanically Compatible
Number of Terminations	2	2	Exact Match
RoHS Status	Compliant	Compliant	Exact Match
Product Status	Obsolete	Active	Substitute Current

Engineering Selection Recommendations

Primary Substitute: WND10RFET (Ohmite)

The WND10RFET is the qualified substitute for the VC3D10 based on the following engineering criteria:

Functional Equivalence: Identical resistance value (10 Ohms), power rating (3W), composition (wirewound), and non-inductive feature ensure direct functional replacement in circuit applications.
Enhanced Performance: The WND10RFET provides superior tolerance (±1% versus ±5%) and improved temperature coefficient (±50ppm/°C versus ±150ppm/°C), resulting in better accuracy and temperature stability without introducing incompatibility.
Mechanical Compatibility: Axial package configuration and two-terminal design maintain PCB layout compatibility. Dimensional variance (0.217" Dia x 0.533" L versus 0.220" Dia x 0.500" L) is within acceptable mechanical tolerance for through-hole mounting.
Regulatory Compliance: Both parts maintain RoHS compliance and EAR99 ECCN classification, satisfying environmental and export control requirements.
Supply Chain Continuity: The WND10RFET holds active product status with 3449 units in stock, ensuring reliable procurement compared to the obsolete VC3D10 status.
Packaging Availability: The WND10RFET is available in Tape & Reel (TR) packaging, supporting automated assembly processes and volume production requirements.

Frequently Asked Questions (FAQ)

Q: Can the WND10RFET directly replace the VC3D10 in existing designs?

A: Yes. The WND10RFET provides direct functional replacement. Both components share identical resistance value (10 Ohms), power rating (3W), axial package configuration, wirewound composition, and non-inductive characteristics. The substitute's superior tolerance and temperature coefficient do not introduce incompatibility.

Q: What is the significance of the tolerance difference (±5% versus ±1%)?

A: The VC3D10 specifies ±5% tolerance, while the WND10RFET specifies ±1% tolerance. The substitute's tighter tolerance provides improved accuracy and reduced resistance variation across the manufacturing range. This represents an enhancement rather than a limitation for circuit performance.

Q: How do the temperature coefficients compare?

A: The VC3D10 has a temperature coefficient of ±150ppm/°C, while the WND10RFET has ±50ppm/°C. The substitute exhibits superior temperature stability, meaning its resistance value changes less across temperature variations. This improvement benefits applications requiring stable performance across operating temperature ranges.

Q: Are the physical dimensions compatible?

A: The dimensions are mechanically compatible. The VC3D10 measures 0.220" Dia x 0.500" L (5.59mm x 12.70mm), while the WND10RFET measures 0.217" Dia x 0.533" L (5.50mm x 13.54mm). The diameter difference is negligible (0.003"), and the length difference (0.033") is within acceptable tolerance for through-hole PCB mounting.

Q: What is the operating temperature range for the WND10RFET?

A: The WND10RFET operates across -55°C to 150°C. The original VC3D10 does not specify an operating temperature range in the provided data. The substitute's specified range ensures performance definition across typical industrial and commercial temperature environments.

Q: Does the packaging format affect substitution?

A: The VC3D10 packaging format is not specified in the provided data. The WND10RFET is available in Tape & Reel (TR) packaging, which supports automated assembly and volume production. For manual assembly or specific packaging requirements, component availability should be verified with the supplier.

Q: Are both parts RoHS compliant?

A: Yes. Both the VC3D10 and WND10RFET are RoHS compliant, satisfying environmental and regulatory requirements for lead-free construction and restricted substance limitations.

Q: Why is the VC3D10 listed as obsolete?

A: The VC3D10 is classified as obsolete by Honeywell, indicating discontinued manufacturing and limited future availability. The WND10RFET's active product status ensures ongoing supply chain support and manufacturing continuity for applications requiring 10 Ohm 3W axial wirewound resistors.

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