Equivalent & Substitute Parts for 6-1622821-3

Part Overview

The TE Connectivity 6-1622821-3 is a 33 mOhms ±5% 0.25W thick film chip resistor in 0805 (2012 Metric) package designed for current sense applications. This part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and procurement needs. Substitute parts maintain the core functional specifications while offering improvements in tolerance, power rating, temperature performance, or active product status.

Substiute Parts

6-1622821-3

TE Connectivity Passive ProductIn Stock: 9336-1622821-3 Datasheet

Current PartRFQ

CSR0805FK33L0

Stackpole Electronics IncIn Stock: 916CSR0805FK33L0 Datasheet

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UCR10EVHFSR033

Rohm SemiconductorIn Stock: 11720UCR10EVHFSR033 Datasheet

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UCR10EVHJSR033

Rohm SemiconductorIn Stock: 1210UCR10EVHJSR033 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 6-1622821-3 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Resistance value: 33 mOhms (exact match required)
• Package / Case: 0805 (2012 Metric) (physical and electrical compatibility)
• Composition: Thick Film (material consistency)
• Features: Current Sense (functional requirement)
• Number of Terminations: 2 (electrical interface)

Allowable Variation Parameters:

• Tolerance: Can be improved from ±5% to ±1%
• Power Rating: Can be increased from 0.25W to 0.333W
• Temperature Coefficient: Can be improved from ±350ppm/°C to 0/+250ppm/°C
• Operating Temperature Range: Can be extended from -55°C ~ 125°C to -55°C ~ 155°C
• Product Status: Active status preferred over obsolete
• Compliance: RoHS3 and AEC-Q200 certifications add value without compromising compatibility

Three substitute parts meet these criteria with varying levels of specification enhancement.

Parameter Comparison

Engineering Selection Recommendations

CSR0805FK33L0 (Stackpole Electronics Inc)

This substitute provides improved tolerance (±1% versus ±5%) and extended operating temperature range (-55°C ~ 155°C versus -55°C ~ 125°C) while maintaining identical power rating and package specifications. The part is active and RoHS3 compliant. Selection is appropriate for applications requiring tighter tolerance specifications without automotive qualification requirements.

UCR10EVHFSR033 (Rohm Semiconductor)

This substitute offers the highest specification enhancement with increased power rating (0.333W versus 0.25W), improved tolerance (±1%), extended temperature range (-55°C ~ 155°C), and superior temperature coefficient (0/+250ppm/°C versus ±350ppm/°C). AEC-Q200 automotive qualification and RoHS3 compliance are included. This part is recommended for applications requiring automotive-grade reliability and thermal performance.

UCR10EVHJSR033 (Rohm Semiconductor)

This substitute maintains the original ±5% tolerance specification while providing increased power rating (0.333W), extended temperature range (-55°C ~ 155°C), improved temperature coefficient (0/+250ppm/°C), AEC-Q200 automotive qualification, and RoHS3 compliance. Selection is appropriate for applications requiring automotive-grade components with tolerance matching the original specification.

All three substitutes are active products with superior availability compared to the obsolete 6-1622821-3.

Frequently Asked Questions (FAQ)

Q: Can the CSR0805FK33L0 be used as a direct replacement for the 6-1622821-3?

A: Yes. Both parts share identical resistance (33 mOhms), package (0805), composition (thick film), and current sense functionality. The CSR0805FK33L0 provides improved tolerance (±1% versus ±5%) and extended operating temperature range. The maximum seated height increases from 0.020" to 0.026", which must be verified against PCB layout constraints.

Q: What is the primary difference between the UCR10EVHFSR033 and UCR10EVHJSR033?

A: Both parts are manufactured by Rohm Semiconductor with identical package, power rating (0.333W), and automotive AEC-Q200 qualification. The primary difference is tolerance: UCR10EVHFSR033 provides ±1% tolerance, while UCR10EVHJSR033 maintains ±5% tolerance matching the original part. Selection depends on circuit accuracy requirements.

Q: Are the substitute parts physically compatible with the original PCB layout?

A: All substitute parts use the 0805 (2012 Metric) package with identical length (0.079") and width (0.049"). However, the maximum seated height increases from 0.020" (original) to 0.026" (all substitutes). PCB clearance above the component must be verified to ensure no interference with overlying components or solder mask.

Q: Do the substitute parts meet environmental compliance requirements?

A: All three substitute parts are RoHS3 compliant and REACH unaffected. The UCR10EVHFSR033 and UCR10EVHJSR033 additionally carry AEC-Q200 automotive qualification. All parts maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: Which substitute part offers the best thermal performance?

A: The UCR10EVHFSR033 provides the best thermal performance with temperature coefficient of 0/+250ppm/°C (versus ±350ppm/°C for the original) and extended operating range to 155°C. Increased power rating (0.333W versus 0.25W) also provides thermal margin in current sense applications.

Q: Can substitutes be mixed in the same design or production run?

A: All three substitutes are electrically and mechanically compatible with the original 6-1622821-3 specification. However, mixing parts with different tolerances (±1% versus ±5%) in the same circuit may introduce measurement inconsistencies in current sense applications. Consistent part selection within a design is recommended.

Q: What is the impact of the increased height on assembly?

A: The height increase from 0.020" to 0.026" (0.30mm additional clearance) is within typical PCB design margins for 0805 components. Verification against specific PCB layout, solder mask opening, and component placement is required to confirm compatibility.