Equivalent & Substitute Parts for TE Connectivity 2-1622821-3

Part Overview

The TE Connectivity 2-1622821-3 is a 470 mOhms ±5% 0.25W thick film chip resistor in 0805 (2012 Metric) package configuration, designed for current sense applications. This component is classified as obsolete, necessitating identification of functionally equivalent active alternatives that maintain electrical and mechanical compatibility with existing designs.

Substiute Parts

2-1622821-3

TE Connectivity Passive ProductIn Stock: 8932-1622821-3 Datasheet

Current PartRFQ

CSR0805FKR470

Stackpole Electronics IncIn Stock: 765CSR0805FKR470 Datasheet

UpgradeRFQ

RCWE0805R470FKEA

Vishay DaleIn Stock: 7706RCWE0805R470FKEA Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 2-1622821-3 is determined by strict equivalence across the following parameters:

Mandatory Equivalence Criteria:

• Resistance value: 470 mOhms
• Package / Case: 0805 (2012 Metric)
• Power rating: 0.25W minimum
• Composition: Thick Film
• Application feature: Current Sense capability
• Number of terminations: 2

Allowable Variations:

• Tolerance may be tighter (±1% acceptable for ±5% requirement)
• Temperature coefficient may be lower (improved stability)
• Operating temperature range may be extended (improved performance envelope)
• Product status must be Active (to ensure continued availability)

Both identified substitute parts meet these criteria while offering improved tolerance specifications and extended operating temperature ranges compared to the obsolete original component.

Parameter Comparison

Engineering Selection Recommendations

Stackpole Electronics CSR0805FKR470: This substitute provides improved tolerance (±1% versus ±5%) and extended operating temperature range (-55°C ~ 155°C versus -55°C ~ 125°C). The component is Active status with ROHS3 compliance. Physical dimensions remain equivalent to the original part. This option is suitable for general current sense applications where automotive qualification is not required.

Vishay Dale RCWE0805R470FKEA: This substitute offers the tightest tolerance specification (±1%) and lowest temperature coefficient (±100ppm/°C) among available options. The component includes Automotive AEC-Q200 qualification and moisture-resistant construction. Extended operating temperature range (-55°C ~ 155°C) and ROHS3 compliance are provided. Physical dimensions show minimal variation (width increased by 0.01" / 0.05mm). This option is required for automotive applications or designs requiring enhanced environmental performance and stability.

Both substitutes maintain electrical equivalence with the original component while offering improved specifications and active product status, ensuring long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the Stackpole CSR0805FKR470 directly replace the TE Connectivity 2-1622821-3 in existing designs?

A: Yes. Both components share identical resistance value (470 mOhms), power rating (0.25W), package configuration (0805), and current sense application feature. The Stackpole part provides tighter tolerance (±1% versus ±5%) and extended temperature range, making it functionally superior for direct substitution.

Q: What is the significance of the ±1% tolerance improvement in substitute parts?

A: The substitute parts offer ±1% tolerance compared to the original ±5% tolerance. This tighter tolerance reduces resistance value variation across the component population, improving circuit accuracy and performance consistency in current sense applications where precise resistance values are critical.

Q: Are there physical compatibility concerns when substituting these parts?

A: Physical dimensions are substantially equivalent. The original part measures 0.079" L x 0.049" W with 0.020" maximum seated height. Both substitutes maintain 0.079" length and 0.049" width, with seated height increased to 0.026". The Vishay part shows a width variation of 0.01" (0.05mm). These variations are within standard PCB layout tolerances for 0805 package components.

Q: Which substitute is appropriate for automotive applications?

A: The Vishay Dale RCWE0805R470FKEA includes Automotive AEC-Q200 qualification and is the specified choice for automotive designs. The Stackpole part lacks automotive certification and should not be used in automotive applications without design review.

Q: What is the impact of temperature coefficient differences between these parts?

A: The original part has ±350ppm/°C temperature coefficient. The Stackpole substitute provides ±200ppm/°C, and the Vishay substitute provides ±100ppm/°C. Lower temperature coefficients indicate better resistance stability across temperature variations, improving circuit performance in applications with wide operating temperature ranges.

Q: Do all substitute parts maintain the same moisture sensitivity level?

A: Yes. The original part and both substitutes are classified as MSL 1 (Unlimited), indicating no moisture sensitivity concerns and no special handling requirements during storage or assembly.

Q: Are there compliance differences between the original and substitute parts?

A: Both substitute parts are ROHS3 compliant and REACH unaffected. The original part status does not specify RoHS compliance. The substitutes provide improved regulatory compliance for modern manufacturing and supply chain requirements.