MVA6.3VC681MH10TP Equivalent & Substitute Parts

Part Overview

The MVA6.3VC681MH10TP is a 680 µF, 6.3 V aluminum electrolytic capacitor manufactured by Chemi-Con in the MVA series. This surface mount radial can capacitor is designed for general purpose applications with a rated lifetime of 2000 hours at 85°C. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain functional compatibility while offering improved performance characteristics or extended availability.

Key Parameters

Parameter	Value
Capacitance	680 µF
Voltage Rating	6.3 V
Tolerance	±20%
ESR @ 120 Hz	853 mOhm
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Ripple Current @ 120 Hz	290 mA
Case Size	0.315" Dia (8.00 mm)
Height	0.394" (10.00 mm)
Mounting Type	Surface Mount
Package	Radial, Can - SMD
RoHS Status	Non-compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MVA6.3VC681MH10TP is determined by the following critical parameters:

Primary Compatibility Criteria:

Capacitance value: 680 µF (exact match required)
Tolerance: ±20% (standard tolerance maintained)
Mounting type: Surface Mount (SMD)
Package style: Radial, Can - SMD
Physical footprint: 0.315" diameter (8.00 mm) with compatible height
Surface mount land size: 0.327" L x 0.327" W (8.30 mm x 8.30 mm)
Polarization: Polar (electrolytic)
MSL Rating: 1 (Unlimited moisture sensitivity)

Voltage Rating Considerations: Substitutes are grouped into two categories based on voltage rating:

Same Voltage (6.3 V): Direct replacements maintaining identical voltage specification
Higher Voltage (10 V or 16 V): Upgrades providing increased voltage margin; electrically compatible in 6.3 V applications due to voltage derating principles

Performance Enhancement Parameters:

Lifetime at elevated temperature (105°C vs. 85°C)
ESR characteristics and impedance
Ripple current capacity
Operating temperature range extension
RoHS3 compliance and automotive certifications (AEC-Q200)

Substitutes must maintain identical capacitance, tolerance, case size, and mounting configuration. Voltage upgrades and extended temperature ratings represent performance improvements without functional incompatibility.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Case Size	Height	Lifetime @ Temp	Operating Temp Range	RoHS Status	Product Status
MVA6.3VC681MH10TP	Chemi-Con	680 µF	6.3 V	±20%	0.315" (8.00 mm)	0.394" (10.00 mm)	2000 Hrs @ 85°C	-40°C ~ 85°C	Non-compliant	Obsolete
EMVE6R3ARA681MHA0G	Chemi-Con	680 µF	6.3 V	±20%	0.315" (8.00 mm)	0.394" (10.00 mm)	2000 Hrs @ 105°C	-40°C ~ 105°C	ROHS3 Compliant	Active
EMVY6R3ARA681MHA0G	Chemi-Con	680 µF	6.3 V	±20%	0.315" (8.00 mm)	0.394" (10.00 mm)	2000 Hrs @ 105°C	-55°C ~ 105°C	ROHS3 Compliant	Active
EMZA100ARA681MHA0G	Chemi-Con	680 µF	10 V	±20%	0.315" (8.00 mm)	0.413" (10.50 mm)	2000 Hrs @ 105°C	-55°C ~ 105°C	ROHS3 Compliant	Active
10TKV680M8X10.5	Rubycon	680 µF	10 V	±20%	0.315" (8.00 mm)	0.413" (10.50 mm)	2000 Hrs @ 105°C	-55°C ~ 105°C	ROHS3 Compliant	Active
10TZV680M8X10.5	Rubycon	680 µF	10 V	±20%	0.315" (8.00 mm)	0.413" (10.50 mm)	2000 Hrs @ 105°C	-55°C ~ 105°C	ROHS3 Compliant	Active
AFK687M10F24T-F	Cornell Dubilier Electronics	680 µF	10 V	±20%	0.315" (8.00 mm)	0.413" (10.50 mm)	2000 Hrs @ 105°C	-55°C ~ 105°C	ROHS3 Compliant	Active
EEE-FK1A681P	Panasonic Electronic Components	680 µF	10 V	±20%	0.315" (8.00 mm)	0.413" (10.50 mm)	2000 Hrs @ 105°C	-55°C ~ 105°C	ROHS3 Compliant	Active
EEE-FT1C681GP	Panasonic Electronic Components	680 µF	16 V	±20%	0.315" (8.00 mm)	0.413" (10.50 mm)	5000 Hrs @ 105°C	-55°C ~ 105°C	ROHS3 Compliant	Active
EEV687M6R3A9MAA	KEMET	680 µF	6.3 V	±20%	0.315" (8.00 mm)	0.413" (10.50 mm)	2000 Hrs @ 105°C	-55°C ~ 105°C	ROHS3 Compliant	Active
EEV687M6R3S9MAA	KEMET	680 µF	6.3 V	±20%	0.315" (8.00 mm)	0.413" (10.50 mm)	2000 Hrs @ 105°C	-55°C ~ 105°C	ROHS3 Compliant	Active

Engineering Selection Recommendations

Direct Replacement (Same Voltage, 6.3 V):

For applications requiring exact voltage specification match with improved compliance and extended temperature performance:

EMVE6R3ARA681MHA0G (Chemi-Con Alchip™ MVE series): Active product with ROHS3 compliance, extended lifetime at 105°C, and same manufacturer continuity. Suitable for designs requiring minimal qualification changes.
EMVY6R3ARA681MHA0G (Chemi-Con Alchip™ MVY series): Active product with extended operating temperature range (-55°C ~ 105°C), ROHS3 compliance, and improved ripple current handling at high frequency (450 mA @ 100 kHz).
EEV687M6R3A9MAA and EEV687M6R3S9MAA (KEMET EEV series): Active products with ROHS3 compliance and extended temperature range. EEV687M6R3S9MAA includes AEC-Q200 automotive qualification.

Voltage Upgrade Substitutes (10 V Rating):

For applications where voltage margin improvement is acceptable and physical height increase (0.413" vs. 0.394") is accommodated:

EMZA100ARA681MHA0G (Chemi-Con Alchip™ MZA series): AEC-Q200 automotive qualified, ROHS3 compliant, extended temperature range, improved ripple current capacity (360 mA @ 120 Hz, 600 mA @ 100 kHz).
10TKV680M8X10.5 (Rubycon TKV series): AEC-Q200 automotive qualified, ROHS3 compliant, superior ripple current performance (510 mA @ 120 Hz, 850 mA @ 100 kHz), low ESR (80 mOhm @ 100 kHz).
10TZV680M8X10.5 (Rubycon TZV series): AEC-Q200 automotive qualified, ROHS3 compliant, extended temperature range, impedance specification (160 mOhms).
AFK687M10F24T-F (Cornell Dubilier AFK series): AEC-Q200 automotive qualified, ROHS3 compliant, suitable for bypass and decoupling applications, ESR specification (160 mOhm @ 100 kHz).
EEE-FK1A681P (Panasonic FK series): AEC-Q200 automotive qualified, ROHS3 compliant, highest inventory availability (1,000,300 pcs), extended temperature range.

Premium Voltage Upgrade (16 V Rating):

For applications requiring maximum voltage margin and extended lifetime:

EEE-FT1C681GP (Panasonic FT series): AEC-Q200 automotive qualified, ROHS3 compliant, extended lifetime (5000 Hrs @ 105°C), superior ripple current performance (595 mA @ 120 Hz, 850 mA @ 100 kHz), low ESR (80 mOhm @ 100 kHz).

Selection Criteria Summary:

Compliance Requirements: All active substitutes are ROHS3 compliant, addressing the non-compliant status of the obsolete MVA6.3VC681MH10TP.
Automotive Applications: Parts with AEC-Q200 certification (EMZA100ARA681MHA0G, 10TKV680M8X10.5, 10TZV680M8X10.5, AFK687M10F24T-F, EEE-FK1A681P, EEE-FT1C681GP) are qualified for automotive use.
Temperature Performance: Extended operating range (-55°C ~ 105°C) available in most active substitutes compared to original (-40°C ~ 85°C).
Physical Compatibility: Height increase from 0.394" to 0.413" occurs only in 10 V and 16 V rated substitutes; same-voltage substitutes maintain original height.
Inventory Availability: EEE-FK1A681P offers exceptional stock levels (1,000,300 pcs) for high-volume applications.

Frequently Asked Questions (FAQ)

Q1: Can I use a 10 V rated capacitor in place of the 6.3 V MVA6.3VC681MH10TP?

A: Yes. A 10 V rated capacitor is electrically compatible in a 6.3 V application. The higher voltage rating provides additional safety margin and does not affect circuit functionality. The capacitance value (680 µF) and tolerance (±20%) remain identical. Physical height increases from 0.394" to 0.413", which must be verified against PCB layout constraints.

Q2: What is the significance of the height difference between 0.394" and 0.413"?

A: The original MVA6.3VC681MH10TP has a maximum seated height of 0.394" (10.00 mm). Most 10 V and 16 V rated substitutes have a height of 0.413" (10.50 mm). This 0.019" (0.50 mm) difference must be accommodated in PCB design, particularly in applications with height-constrained enclosures or stacked component arrangements. Same-voltage substitutes (EMVE6R3ARA681MHA0G, EMVY6R3ARA681MHA0G) maintain the original 0.394" height.

Q3: Why do some substitutes list no ESR value while others specify ESR?

A: ESR (Equivalent Series Resistance) is a measured parameter provided by manufacturers when available. Absence of an ESR specification does not indicate inferior performance; it reflects manufacturer data sheet practices. Parts with specified ESR values (e.g., 10TKV680M8X10.5 at 80 mOhm @ 100 kHz) provide explicit impedance characteristics for high-frequency applications. For critical ripple current or noise-sensitive applications, parts with specified low ESR are preferred.

Q4: What does AEC-Q200 certification mean?

A: AEC-Q200 is an automotive electronics qualification standard. Parts bearing this certification have undergone rigorous testing for reliability, temperature cycling, and performance stability in automotive environments. Substitutes with AEC-Q200 rating (EMZA100ARA681MHA0G, 10TKV680M8X10.5, 10TZV680M8X10.5, AFK687M10F24T-F, EEE-FK1A681P, EEE-FT1C681GP) are suitable for automotive applications requiring this qualification.

Q5: Is ROHS3 compliance mandatory for my application?

A: ROHS3 compliance is required for products sold in the European Union and many other regions. The original MVA6.3VC681MH10TP is non-compliant. All listed active substitutes are ROHS3 compliant, ensuring regulatory compliance for new designs and manufacturing. If legacy non-compliant parts are required for existing inventory, the original part number remains available in limited stock (865 pcs).

Q6: What is the difference between Chemi-Con's MVE and MVY series?

A: Both EMVE6R3ARA681MHA0G (MVE series) and EMVY6R3ARA681MHA0G (MVY series) are Chemi-Con Alchip™ products with identical capacitance, voltage, and tolerance. The MVY series extends the operating temperature range to -55°C (vs. -40°C for MVE) and provides higher ripple current at 100 kHz (450 mA vs. unspecified for MVE). Selection depends on low-temperature performance requirements.

Q7: Why does EEE-FT1C681GP have a longer lifetime (5000 Hrs @ 105°C) than other substitutes?

A: The EEE-FT1C681GP operates at a higher voltage rating (16 V vs. 6.3 V or 10 V), which allows for more conservative internal design margins. Higher voltage-rated capacitors typically exhibit extended lifetime characteristics. The 5000-hour rating at 105°C represents superior long-term reliability compared to the 2000-hour rating of most other substitutes.

Q8: Can I mix different substitute part numbers in the same design?

A: Yes, provided all substitutes meet the electrical requirements (680 µF, ±20% tolerance, compatible voltage rating) and physical constraints (case size, height, mounting type). However, for manufacturing consistency and supply chain management, using a single substitute part number across a design is recommended. If multiple substitutes are used, ensure they are sourced from the same manufacturing lot to minimize performance variation.

Q9: What is MSL (Moisture Sensitivity Level) and why is it rated 1?

A: MSL indicates the moisture sensitivity of a component during storage and handling. MSL 1 (Unlimited) means the component has no moisture sensitivity restrictions and can be stored indefinitely without special drying procedures. All listed substitutes maintain MSL 1 rating, ensuring compatibility with standard manufacturing and storage practices.

Q10: Which substitute offers the best ripple current performance?

A: The 10TKV680M8X10.5 (Rubycon TKV series) provides the highest ripple current capacity at 510 mA @ 120 Hz and 850 mA @ 100 kHz. The EEE-FT1C681GP (Panasonic FT series) matches this performance at 595 mA @ 120 Hz and 850 mA @ 100 kHz. These parts are suitable for high-current ripple applications such as switching power supplies and DC-DC converters.

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