TPSB686M006R0350 Equivalent & Substitute Parts

Part Overview

The TPSB686M006R0350 is a 68 µF molded tantalum capacitor rated at 6.3 V with ±20% tolerance, manufactured by KYOCERA AVX in the TPS series. This surface mount component features a 1411 (3528 Metric) package with 350 mOhm equivalent series resistance and is designed for general purpose applications across an operating temperature range of -55°C to 125°C. The part is ROHS3 compliant, REACH unaffected, and carries MSL 1 (unlimited moisture sensitivity level) classification. Equivalent and substitute parts are identified based on matching capacitance, voltage rating, package dimensions, and mounting type, with allowable variations in tolerance and ESR specifications.

Substiute Parts

TPSB686M006R0350

KYOCERA AVXIn Stock: 1201TPSB686M006R0350 Datasheet

Current PartRFQ

TPSB686K006R0350

KYOCERA AVXIn Stock: 3045TPSB686K006R0350 Datasheet

UpgradeRFQ

TAJB686M006RNJ

KYOCERA AVXIn Stock: 4182TAJB686M006RNJ Datasheet

MFR RecommendedRFQ

TPSB686M006R0500

KYOCERA AVXIn Stock: 16468TPSB686M006R0500 Datasheet

MFR RecommendedRFQ

293D686X06R3B2TE3

Vishay SpragueIn Stock: 7159293D686X06R3B2TE3 Datasheet

MFR RecommendedRFQ

T491B686M006AT

KEMETIn Stock: 5259T491B686M006AT Datasheet

MFR RecommendedRFQ

T494B686M006AT

KEMETIn Stock: 2112T494B686M006AT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TPSB686M006R0350 are qualified based on the following critical parameters:

Primary Matching Criteria (Non-Negotiable):

• Capacitance: 68 µF (exact match required)
• Voltage Rating: 6.3 V (exact match required)
• Package / Case: 1411 (3528 Metric) footprint compatibility
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C ~ 125°C minimum

Secondary Allowable Variations:

• Tolerance: ±10% to ±20% (tighter tolerance acceptable as upgrade)
• ESR: 350 mOhm to 1.8 Ohm (higher ESR acceptable for general purpose applications)
• Manufacturer: KYOCERA AVX, KEMET, Vishay Sprague (all qualified suppliers)
• Series: TPS, TAJ, T491, T494, 293D (manufacturer-specific series designations)

Compliance Requirements (All Substitutes Must Meet):

• ROHS3 Compliant
• REACH Unaffected
• MSL 1 (Unlimited)

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain full compatibility with the TPSB686M006R0350 footprint and electrical specifications. Selection among substitutes should be based on the following factors:

KYOCERA AVX TPS Series (TPSB686K006R0350, TPSB686M006R0500): These parts maintain identical package geometry and mounting characteristics. TPSB686K006R0350 offers improved tolerance (±10%) while maintaining the same ESR specification. TPSB686M006R0500 provides higher inventory availability with acceptable ESR increase to 500 mOhm.

KYOCERA AVX TAJ Series (TAJB686M006RNJ): Qualified substitute with identical electrical specifications but higher ESR (900 mOhm). Suitable for applications where ESR variation is not critical.

Vishay Sprague 293D Series (293D686X06R3B2TE3): Cross-manufacturer equivalent with significantly lower ESR (1.8 Ohm), providing performance enhancement for noise-sensitive applications. Height specification shows minimal variation (2.11 mm vs. 2.10 mm).

KEMET T491 and T494 Series (T491B686M006AT, T494B686M006AT): Both parts provide qualified substitution with ESR values of 900 mOhm and 650 mOhm respectively. T494B686M006AT offers intermediate ESR performance between the original specification and higher-ESR alternatives.

All substitute parts carry ROHS3 compliance, REACH unaffected status, and MSL 1 rating, ensuring regulatory and environmental compatibility with the original component.

Frequently Asked Questions (FAQ)

Q: Can TPSB686K006R0350 replace TPSB686M006R0350 directly?

A: Yes. TPSB686K006R0350 is a direct substitute with identical capacitance (68 µF), voltage rating (6.3 V), package (1411/3528 Metric), and ESR (350 mOhm). The tolerance improvement from ±20% to ±10% represents an upgrade with no compatibility concerns.

Q: What is the impact of higher ESR values in substitute parts?

A: ESR (Equivalent Series Resistance) affects impedance characteristics and heat dissipation. Substitutes with higher ESR values (500 mOhm to 1.8 Ohm) remain functionally compatible for general purpose applications. Applications requiring low-impedance performance should prioritize parts with ESR closest to 350 mOhm or lower.

Q: Are cross-manufacturer substitutes (KEMET, Vishay Sprague) pin-compatible?

A: Yes. All listed substitutes share the identical 1411 (3528 Metric) package footprint and surface mount configuration, ensuring PCB layout compatibility without modification.

Q: Does tolerance variation affect circuit performance?

A: Tolerance variation (±10% vs. ±20%) affects capacitance accuracy. Applications with tight capacitance requirements should specify ±10% tolerance parts such as TPSB686K006R0350. General purpose applications tolerate ±20% specification.

Q: What is the significance of MSL 1 rating across all parts?

A: MSL 1 (Unlimited) indicates these components have unlimited shelf life and require no special moisture control during storage or handling, simplifying supply chain management and reducing component preparation requirements.

Q: Can TPSB686M006R0350 be used in high-temperature applications?

A: The operating temperature range of -55°C to 125°C is identical across all substitute parts. All listed components are rated for this full range. Lifetime specifications vary by manufacturer; KEMET T491 and T494 series specify 2000 hours at 125°C.