Equivalent & Substitute Parts: 5-1622821-0

Part Overview

The TE Connectivity 5-1622821-0 is a 1 Ohm ±5% 0.25W thick film chip resistor in 0805 (2012 Metric) package with current sense capability. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. The substitute part CSR0805FK1R00 from Stackpole Electronics Inc provides functional equivalence with enhanced specifications and active product status.

Substiute Parts

5-1622821-0

TE Connectivity Passive ProductIn Stock: 10425-1622821-0 Datasheet

Current PartRFQ

CSR0805FK1R00

Stackpole Electronics IncIn Stock: 16381CSR0805FK1R00 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of 5-1622821-0 with CSR0805FK1R00 is valid based on the following matching parameters:

Matching Electrical Specifications:

• Identical resistance value: 1 Ohms
• Identical power rating: 0.25W (1/4W)
• Identical package: 0805 (2012 Metric)
• Identical composition: Thick Film
• Identical feature set: Current Sense
• Identical termination count: 2

Matching Physical Specifications:

• Identical length and width: 0.079" L x 0.049" W (2.00mm x 1.25mm)
• Compatible height specifications (0.020" max vs 0.026" max)

Matching Environmental Specifications:

• Identical moisture sensitivity level: 1 (Unlimited)
• Identical REACH status: REACH Unaffected
• Identical ECCN classification: EAR99
• Identical HTSUS code: 8533.21.0030

The substitute part offers improved tolerance (±1% vs ±5%), lower temperature coefficient (±200ppm/°C vs ±350ppm/°C), and extended operating temperature range (-55°C ~ 155°C vs -55°C ~ 125°C), while maintaining full mechanical and electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: CSR0805FK1R00

The CSR0805FK1R00 is the direct functional equivalent for 5-1622821-0. Selection of this substitute is based on:

1. Product Status: The substitute maintains active product status, ensuring long-term availability and supply chain continuity compared to the obsolete main part.

2. Compliance: The substitute is ROHS3 compliant, providing enhanced environmental compliance beyond the main part specification. Both parts maintain identical REACH and ECCN classifications.

3. Electrical Compatibility: Identical resistance, power rating, and current sense features ensure drop-in replacement capability in existing circuit designs.

4. Mechanical Compatibility: Identical package dimensions (0805/2012 Metric) and footprint enable direct PCB layout compatibility. The maximum seated height difference (0.026" vs 0.020") remains within standard assembly tolerances.

5. Environmental Performance: The substitute offers superior temperature stability (±200ppm/°C vs ±350ppm/°C) and extended operating temperature range (-55°C ~ 155°C vs -55°C ~ 125°C), providing enhanced performance margin in thermal applications.

6. Tolerance Enhancement: The ±1% tolerance of the substitute provides improved accuracy compared to the ±5% tolerance of the main part, beneficial for precision current sensing applications.

Frequently Asked Questions (FAQ)

Q: Can CSR0805FK1R00 be used as a direct replacement for 5-1622821-0 in existing designs?

A: Yes. Both parts share identical resistance value (1 Ohm), power rating (0.25W), package (0805/2012 Metric), composition (Thick Film), and current sense features. The mechanical footprint is identical, enabling direct PCB substitution.

Q: What are the key differences between these parts?

A: The substitute offers three primary improvements: (1) Active product status versus obsolete status, (2) Tighter tolerance specification (±1% vs ±5%), and (3) Extended operating temperature range (-55°C ~ 155°C vs -55°C ~ 125°C). The substitute also includes ROHS3 compliance certification.

Q: Are there any height clearance concerns with the substitute part?

A: The substitute has a maximum seated height of 0.026" compared to 0.020" for the main part. This 0.006" (0.15mm) difference is within standard PCB assembly tolerances and does not affect component placement or board-level compatibility.

Q: Does the improved tolerance of the substitute affect circuit performance?

A: The ±1% tolerance of CSR0805FK1R00 provides tighter resistance accuracy compared to the ±5% tolerance of 5-1622821-0. For current sensing applications, this improvement enhances measurement precision without requiring circuit redesign.

Q: What is the significance of the temperature coefficient difference?

A: The substitute's lower temperature coefficient (±200ppm/°C vs ±350ppm/°C) indicates superior resistance stability across temperature variations. This provides improved performance in applications subject to thermal cycling or wide operating temperature ranges.

Q: Are packaging formats compatible between these parts?

A: Both parts are available in 0805 (2012 Metric) package format. The substitute is supplied in Tape & Reel (TR) packaging, which is standard for automated assembly processes. The main part packaging format was not specified in available documentation.

Q: Do these parts have identical environmental compliance?

A: Both parts share identical REACH status (REACH Unaffected), ECCN classification (EAR99), and HTSUS code (8533.21.0030). The substitute additionally carries ROHS3 compliance certification, providing enhanced environmental compliance for regulated applications.