SXR682M016ST Equivalent & Substitute Parts

Part Overview

The SXR682M016ST is a 6800 µF, 16 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, making direct replacement necessary for ongoing production and maintenance applications. The part operates across a temperature range of -40°C to 105°C with a rated lifetime of 5000 hours at 105°C, suitable for general-purpose applications requiring stable capacitance and low equivalent series resistance.

Due to its obsolete status, equivalent and substitute parts from active manufacturers are required to maintain design continuity and ensure supply chain reliability.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Capacitance	6800	µF	Critical - must match exactly
Voltage - Rated	16	V	Critical - must match or exceed
Tolerance	±20%	%	Critical - must match
Operating Temperature Range	-40°C ~ 105°C	°C	Critical - substitute must cover or exceed
Lifetime @ 105°C	5000	Hours	Important - substitute should meet or exceed
Lead Spacing	7.50	mm	Critical - PCB layout compatibility
Mounting Type	Through Hole	-	Critical - assembly process compatibility
Package / Case	Radial, Can	-	Critical - form factor and footprint
RoHS Status	ROHS3 Compliant	-	Important - regulatory compliance

Substitute Part Grouping Explanation

Substitution eligibility for the SXR682M016ST is determined by strict adherence to the following parameters:

Critical Matching Parameters:

Capacitance: 6800 µF (exact match required)
Voltage Rating: 16 V (minimum; higher ratings acceptable)
Tolerance: ±20% (exact match required)
Lead Spacing: 7.50 mm (exact match for PCB compatibility)
Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)

Acceptable Variation Parameters:

Operating Temperature Range: Substitute must cover the minimum range of -40°C to 105°C; extended ranges are acceptable
Lifetime @ 105°C: Substitute with equal or greater lifetime hours is acceptable
ESR / Impedance: Lower values indicate improved performance; higher values require circuit validation
Ripple Current Ratings: Higher ratings provide design margin; lower ratings require circuit review

All substitute parts listed meet the critical matching parameters. Variations in lifetime, impedance, and ripple current ratings are documented to enable informed selection based on application requirements.

Parameter Comparison

Parameter	SXR682M016ST (CDE)	EKYB160ELL682MM25S (Chemi-Con)	EKZN160ELL682MM25S (Chemi-Con)	ELXV160ELL682MM35S (Chemi-Con)	UPW1C682MHD (Nichicon)	UHE1C682MHD (Nichicon)
Capacitance	6800 µF	6800 µF	6800 µF	6800 µF	6800 µF	6800 µF
Voltage - Rated	16 V	16 V	16 V	16 V	16 V	16 V
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-40°C ~ 105°C
Lifetime @ 105°C	5000 Hrs	10000 Hrs	10000 Hrs	5000 Hrs	8000 Hrs	10000 Hrs
Lead Spacing	7.50 mm	7.50 mm	7.50 mm	7.50 mm	7.50 mm	7.50 mm
Size / Dimension (Dia)	18.00 mm	18.00 mm	18.00 mm	18.00 mm	18.00 mm	16.00 mm
Height - Seated (Max)	36.00 mm	26.50 mm	26.50 mm	36.50 mm	35.50 mm	40.00 mm
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Not For New Designs	Not For New Designs

Engineering Selection Recommendations

Direct Equivalents (Preferred for Replacement):

EKYB160ELL682MM25S and EKZN160ELL682MM25S from Chemi-Con are active products with identical electrical specifications to the SXR682M016ST. Both parts feature 10000-hour lifetime ratings at 105°C, exceeding the original specification. EKYB160ELL682MM25S offers 1394 units in stock; EKZN160ELL682MM25S provides 887 units. Both are ROHS3 compliant and suitable for general-purpose applications. The reduced height (26.50 mm versus 36.00 mm) provides improved PCB layout flexibility.

Automotive-Grade Alternative:

ELXV160ELL682MM35S from Chemi-Con is an active product rated for automotive applications (AEC-Q200). It maintains the 5000-hour lifetime specification and extends the operating temperature range to -55°C to 105°C. This part is suitable for applications requiring automotive-grade reliability and environmental performance. Height is 36.50 mm, closely matching the original form factor. 1043 units are in stock.

Extended Lifetime Options (Legacy Designs):

UHE1C682MHD from Nichicon is classified as "Not For New Designs" but remains available with 10000-hour lifetime at 105°C and 1807 units in stock. This part features a smaller diameter (16.00 mm) and taller profile (40.00 mm), requiring PCB layout verification. REACH status is affected; compliance review is necessary for regulated markets.

UPW1C682MHD from Nichicon is also "Not For New Designs" with 8000-hour lifetime and 5520 units in stock. Height is 35.50 mm with standard 18.00 mm diameter, providing closer form factor match to the original. Extended temperature range (-55°C to 105°C) is available.

Selection Criteria:

For new designs and ongoing production, EKYB160ELL682MM25S or EKZN160ELL682MM25S are recommended due to active product status and superior lifetime ratings. For automotive applications, ELXV160ELL682MM35S is the appropriate choice. Legacy designs currently using SXR682M016ST may continue with UHE1C682MHD or UPW1C682MHD pending end-of-life planning.

Frequently Asked Questions (FAQ)

Q: Can EKYB160ELL682MM25S directly replace SXR682M016ST without PCB modification?

A: EKYB160ELL682MM25S matches all critical electrical and mechanical parameters: 6800 µF capacitance, 16 V rating, ±20% tolerance, 7.50 mm lead spacing, and through-hole radial package. The reduced height (26.50 mm versus 36.00 mm) may provide additional PCB clearance but does not require design changes. Direct substitution is supported.

Q: What is the difference between EKYB160ELL682MM25S and EKZN160ELL682MM25S?

A: Both parts are Chemi-Con products with identical electrical specifications: 6800 µF, 16 V, ±20% tolerance, 10000-hour lifetime at 105°C, and -40°C to 105°C operating range. Impedance differs slightly (17 mOhms versus 16 mOhms), and ripple current ratings vary marginally. Both are ROHS3 compliant and suitable for general-purpose applications. Selection may be based on availability and impedance requirements.

Q: Why is ELXV160ELL682MM35S taller than the original SXR682M016ST?

A: ELXV160ELL682MM35S is designed for automotive applications (AEC-Q200 rated) with extended environmental performance. The 36.50 mm height (versus 36.00 mm original) reflects internal construction optimized for automotive reliability. This minimal height difference typically does not impact PCB layout. The part maintains identical lead spacing and diameter.

Q: Can UHE1C682MHD be used in new designs?

A: UHE1C682MHD is classified as "Not For New Designs" by Nichicon. While the part remains available with superior 10000-hour lifetime and lower impedance (13 mOhms), it is intended for legacy system support only. New designs should specify EKYB160ELL682MM25S, EKZN160ELL682MM25S, or ELXV160ELL682MM35S, which are active products with long-term availability.

Q: What does "REACH Affected" status mean for UHE1C682MHD?

A: REACH Affected indicates that this part may contain substances subject to European REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulations. Compliance verification is required for applications destined for European markets or subject to REACH requirements. EKYB160ELL682MM25S, EKZN160ELL682MM25S, and ELXV160ELL682MM35S are REACH Unaffected, simplifying regulatory compliance.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts—EKYB160ELL682MM25S, EKZN160ELL682MM25S, ELXV160ELL682MM35S, UPW1C682MHD, and UHE1C682MHD—are ROHS3 compliant, matching the original SXR682M016ST specification.

Q: What is the significance of impedance values listed for substitute parts?

A: Impedance (measured in mOhms) reflects the equivalent series resistance and reactance at specified frequencies. Lower impedance values indicate better high-frequency performance and reduced voltage ripple. UHE1C682MHD (13 mOhms) and UPW1C682MHD (15 mOhms) offer superior impedance performance compared to EKYB160ELL682MM25S (17 mOhms) and EKZN160ELL682MM25S (16 mOhms). Selection depends on circuit requirements for ripple current handling and frequency response.

Q: Can substitute parts with higher lifetime ratings be used in applications designed for 5000-hour lifetime?

A: Yes. Substitute parts with equal or greater lifetime ratings (10000 hours, 8000 hours) are fully compatible with applications designed for 5000-hour lifetime. Extended lifetime provides additional design margin and reliability. No circuit modification is required.

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