ECS-F1AE686 Equivalent & Substitute Parts

Part Overview

The ECS-F1AE686 is a 68 µF conformal coated tantalum capacitor rated at 10 V with radial through-hole mounting. Manufactured by Panasonic Electronic Components as part of the EF series, this component is classified as obsolete. Due to its obsolete status and limited availability relative to active alternatives, identifying equivalent substitute parts is essential for ongoing design support and production continuity.

Substiute Parts

ECS-F1AE686

Panasonic Electronic ComponentsIn Stock: 919ECS-F1AE686 Datasheet

Current PartRFQ

T350H686K010AS

KEMETIn Stock: 1060T350H686K010AS Datasheet

DirectRFQ

TAP686K010SCS

KYOCERA AVXIn Stock: 1070TAP686K010SCS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ECS-F1AE686 are qualified based on the following electrical and mechanical parameters:

• Capacitance: 68 µF (exact match required)
• Voltage Rating: 10 V (exact match required)
• Type: Conformal Coated Tantalum (exact match required)
• Mounting Type: Through Hole Radial (exact match required)
• Operating Temperature Range: Minimum -55°C to maximum ≥105°C
• Tolerance: ±20% or better (tighter tolerance acceptable)

The substitute parts T350H686K010AS (KEMET) and TAP686K010SCS (KYOCERA AVX) meet all core electrical requirements. Both are active products with improved tolerance specifications (±10%) and extended temperature ratings to 125°C, providing enhanced performance margins over the obsolete original part.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts satisfy the core electrical requirements of the ECS-F1AE686. Selection between them should be based on the following factors:

T350H686K010AS (KEMET T350 UltraDip II Series): Active product with ±10% tolerance and 1.3 Ohm ESR. Operates to 125°C. RoHS non-compliant. Slightly larger diameter (0.299") and shorter seated height (0.402") compared to the original part. Lead spacing of 0.100" (2.54mm) differs from the original 0.098" (2.50mm).

TAP686K010SCS (KYOCERA AVX TAP Series): Active product with ±10% tolerance, 1.3 Ohm ESR, and ROHS3 compliance. Operates to 125°C. Lifetime specification of 1000 Hrs @ 85°C provided. Diameter of 0.276" and seated height of 0.413" are closer to original dimensions. Lead spacing matches the original at 0.098" (2.50mm).

For applications requiring RoHS3 compliance or tighter dimensional matching to the original part, TAP686K010SCS is the preferred selection. For applications where RoHS compliance is not required, either substitute is electrically equivalent.

Frequently Asked Questions (FAQ)

Q: Can T350H686K010AS or TAP686K010SCS be used as direct replacements for ECS-F1AE686?

A: Both parts are electrically equivalent substitutes. They meet the core electrical specifications: 68 µF capacitance, 10 V rating, conformal coated tantalum type, and through-hole radial mounting. Physical dimensions differ slightly; verify PCB layout compatibility before implementation.

Q: What is the difference in tolerance between the original and substitute parts?

A: The ECS-F1AE686 has ±20% tolerance. Both substitutes offer ±10% tolerance, providing tighter capacitance accuracy and improved circuit performance margins.

Q: Are there lead spacing differences that affect PCB compatibility?

A: The ECS-F1AE686 and TAP686K010SCS both use 0.098" (2.50mm) lead spacing. The T350H686K010AS uses 0.100" (2.54mm) spacing. Verify PCB pad spacing before selection.

Q: Which substitute part has better environmental compliance?

A: TAP686K010SCS is ROHS3 compliant. T350H686K010AS is RoHS non-compliant. For applications requiring RoHS compliance, TAP686K010SCS is the appropriate selection.

Q: Do the substitute parts have specified ESR values?

A: Both T350H686K010AS and TAP686K010SCS specify 1.3 Ohm ESR. The original ECS-F1AE686 does not provide an ESR specification.

Q: What is the temperature operating range for each part?

A: ECS-F1AE686 operates from -55°C to 105°C. Both substitutes extend the upper limit to 125°C, providing additional thermal margin for high-temperature applications.