DFNA1002CT1 Equivalent & Substitute Parts

Part Overview

The DFNA1002CT1 is a 4-resistor network array manufactured by Vishay Dale Thin Film in an 8-VDFN package with exposed pad. This isolated resistor array features 10kΩ resistors with ±0.25% tolerance and 50mW power per element, designed for surface mount applications requiring precision resistor networks. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified to address inventory availability, tolerance requirements, or design optimization needs while maintaining electrical and mechanical compatibility.

Substiute Parts

DFNA1002CT1

Vishay Dale Thin FilmIn Stock: 1098DFNA1002CT1 Datasheet

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DFNA1002AT5

Vishay Dale Thin FilmIn Stock: 1476DFNA1002AT5 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DFNA1002CT1 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 10kΩ
• Number of resistors: 4
• Circuit type: Isolated
• Power per element: 50mW
• Temperature coefficient: ±25ppm/°C
• Operating temperature range: -55°C to 125°C
• Package / Case: 8-VDFN Exposed Pad
• Physical dimensions: 4.00mm × 4.00mm
• Mounting type: Surface Mount

Allowable Variation Parameters:

• Tolerance: ±0.25% or tighter (±0.1%)
• Resistor matching ratio: ±0.025% (fixed across all variants)
• Resistor-ratio-drift: ±3ppm/°C (fixed across all variants)

The DFNA1002AT5 qualifies as a direct substitute because it maintains all mandatory parameters while offering improved tolerance specification (±0.1% versus ±0.25%), making it suitable for applications requiring higher precision without compromising any electrical or mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both DFNA1002CT1 and DFNA1002AT5 are active production parts with full RoHS3 compliance and identical MSL ratings. Selection between these parts depends on tolerance requirements:

DFNA1002CT1 is appropriate for applications where ±0.25% tolerance meets circuit specifications and cost optimization is prioritized.

DFNA1002AT5 is appropriate for applications requiring tighter tolerance control at ±0.1%, providing enhanced precision for ratio-critical circuits while maintaining identical electrical performance across all other parameters and full compliance certifications.

Both parts are pin-compatible, footprint-compatible, and thermally equivalent. No design modifications are required when substituting between these variants.

Frequently Asked Questions (FAQ)

Q: Can DFNA1002AT5 replace DFNA1002CT1 in existing designs?

A: Yes. The DFNA1002AT5 is a direct substitute with identical pinout, package dimensions, thermal characteristics, and operating range. The only difference is improved tolerance specification (±0.1% versus ±0.25%), which is a performance enhancement with no compatibility issues.

Q: What is the primary difference between these two parts?

A: The DFNA1002AT5 offers ±0.1% tolerance compared to the DFNA1002CT1's ±0.25% tolerance. All other electrical and mechanical parameters are identical, including resistance value, power rating, temperature coefficient, and package specifications.

Q: Are the packages physically identical?

A: Yes. Both parts use the 8-VDFN Exposed Pad package with identical dimensions (4.00mm × 4.00mm) and maximum height (0.95mm). PCB footprints and assembly processes are interchangeable.

Q: Do both parts meet the same compliance standards?

A: Yes. Both DFNA1002CT1 and DFNA1002AT5 are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity rating) and identical ECCN and HTSUS classifications.

Q: Which part should be selected for precision analog circuits?

A: The DFNA1002AT5 with ±0.1% tolerance is recommended for applications where resistor matching accuracy directly impacts circuit performance, such as precision instrumentation or ratio-dependent analog functions.