TR3B686M004C0500 Equivalent & Substitute Parts

Part Overview

The TR3B686M004C0500 is a 68 µF molded tantalum capacitor rated at 4 V with ±20% tolerance, manufactured by Vishay Sprague under the TANTAMOUNT™ TR3 series. This surface mount component in 1411 (3528 Metric) package is designed for general purpose applications requiring compact form factor and reliable performance across -55°C to 125°C operating temperature range. The part is Active status and ROHS3 compliant. Substitute parts are identified when design requirements allow for higher voltage ratings or improved tolerance specifications while maintaining identical capacitance, package dimensions, and core electrical characteristics.

Substiute Parts

TR3B686M004C0500

Vishay SpragueIn Stock: 901TR3B686M004C0500 Datasheet

Current PartRFQ

TR3B686K6R3C0500

Vishay SpragueIn Stock: 3517TR3B686K6R3C0500 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of TR3B686M004C0500 is permissible with TR3B686K6R3C0500 based on the following criteria:

Identical Parameters (Required for Substitution):

• Capacitance: 68 µF (exact match)
• Package / Case: 1411 (3528 Metric) (exact match)
• Physical dimensions: 0.138" L x 0.110" W, 0.083" max height (exact match)
• ESR: 500 mOhm (exact match)
• Mounting Type: Surface Mount (exact match)
• Operating Temperature Range: -55°C ~ 125°C (exact match)
• Series: TANTAMOUNT™ TR3 (exact match)
• RoHS Status: ROHS3 Compliant (exact match)
• MSL: 1 (Unlimited) (exact match)

Allowable Variations (Upgrade Parameters):

• Voltage - Rated: 4 V → 6.3 V (higher voltage rating provides greater design margin)
• Tolerance: ±20% → ±10% (improved tolerance specification)

The substitute part maintains all critical electrical and mechanical compatibility while offering enhanced voltage headroom and tighter capacitance tolerance.

Parameter Comparison

Engineering Selection Recommendations

Both TR3B686M004C0500 and TR3B686K6R3C0500 are Active status components with ROHS3 compliance and REACH unaffected status, suitable for production use. The substitute part TR3B686K6R3C0500 offers design advantages through higher voltage rating (6.3 V vs 4 V) and improved tolerance (±10% vs ±20%), while maintaining identical physical footprint, ESR characteristics, and thermal operating range. Selection between these parts depends on circuit voltage requirements and tolerance specifications. Both parts are MSL 1 rated, indicating no moisture sensitivity restrictions during storage and handling.

Frequently Asked Questions (FAQ)

Q: Can TR3B686K6R3C0500 be used as a direct replacement for TR3B686M004C0500?

A: Yes. Both parts share identical capacitance (68 µF), package dimensions (1411/3528 Metric), ESR (500 mOhm), and operating temperature range (-55°C to 125°C). The substitute part provides higher voltage rating and tighter tolerance, making it compatible with circuits designed for the original part.

Q: What are the key differences between these two parts?

A: The primary differences are voltage rating (4 V vs 6.3 V) and tolerance specification (±20% vs ±10%). The substitute part offers enhanced voltage margin and improved capacitance accuracy. All other electrical and mechanical parameters remain identical.

Q: Are there any packaging differences?

A: No. Both parts use identical 1411 (3528 Metric) package with matching physical dimensions (0.138" L x 0.110" W x 0.083" max height) and surface mount mounting type. PCB layout and assembly processes require no modification.

Q: Do both parts meet the same compliance standards?

A: Yes. Both TR3B686M004C0500 and TR3B686K6R3C0500 are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. Both carry MSL 1 rating with unlimited moisture sensitivity protection.

Q: Which part should be selected for new designs?

A: Selection depends on circuit voltage requirements. If the application operates at 4 V or below, either part is suitable. If higher voltage margin is desired or if tighter capacitance tolerance is required, TR3B686K6R3C0500 is the preferred choice. Both parts are Active status and available in production quantities.