T350B685K010AS Equivalent & Substitute Parts

Part Overview

The T350B685K010AS is a 6.8 µF conformal coated tantalum capacitor manufactured by KEMET, rated for 10 V operation in a radial through-hole package. This component belongs to the T350 UltraDip II series and is classified as Active product status. The part is designed for general-purpose applications requiring reliable energy storage in compact form factors.

Substitute parts are identified when equivalent electrical and mechanical parameters are available from alternative manufacturers, enabling procurement flexibility while maintaining circuit performance and reliability requirements.

Substiute Parts

T350B685K010AS

KEMETIn Stock: 800T350B685K010AS Datasheet

Current PartRFQ

TAP685K010SCS

KYOCERA AVXIn Stock: 2811TAP685K010SCS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the T350B685K010AS is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Capacitance: 6.8 µF
• Voltage Rating: 10 V
• Tolerance: ±10%
• ESR: 6 Ohm
• Type: Conformal Coated

Mechanical Parameters (Must Match):

• Mounting Type: Through Hole
• Package / Case: Radial
• Diameter: 0.177" (4.50mm)
• Lead Spacing: 0.100" (2.54mm)

Operating Conditions (Must Match):

• Temperature Range: -55°C to 125°C

The TAP685K010SCS from KYOCERA AVX meets all electrical and mechanical equivalence criteria. Minor dimensional variations in height (0.295" vs 0.299") and lead spacing (0.098" vs 0.100") remain within acceptable PCB layout tolerances for radial through-hole components.

Parameter Comparison

Engineering Selection Recommendations

T350B685K010AS (KEMET):

• Active product status with 702 units in stock
• RoHS non-compliant; suitable for applications without RoHS requirements
• No specified lifetime rating at elevated temperature

TAP685K010SCS (KYOCERA AVX):

• Active product status with 2772 units in stock
• ROHS3 compliant; required for applications subject to RoHS regulations
• Specified lifetime of 1000 hours at 85°C provides documented reliability data
• Slightly reduced height (0.295" vs 0.299") and lead spacing (0.098" vs 0.100") are compatible with standard PCB layouts for radial through-hole components

Selection between these parts depends on regulatory compliance requirements and availability constraints. Both parts are electrically and mechanically equivalent for circuit functionality.

Frequently Asked Questions (FAQ)

Q: Can TAP685K010SCS replace T350B685K010AS in existing designs?

A: Yes. Both parts are electrically equivalent with identical capacitance (6.8 µF), voltage rating (10 V), tolerance (±10%), ESR (6 Ohm), and operating temperature range (-55°C to 125°C). Minor dimensional differences in height and lead spacing are within acceptable tolerances for radial through-hole PCB layouts.

Q: What is the significance of the height difference (0.299" vs 0.295")?

A: The 0.004" (0.10mm) height difference is negligible for through-hole component placement. Standard PCB design guidelines for radial capacitors accommodate this variation without layout modification.

Q: What is the significance of the lead spacing difference (0.100" vs 0.098")?

A: The 0.002" (0.05mm) lead spacing difference is within manufacturing tolerances for radial through-hole components. Both parts fit standard 0.100" (2.54mm) pitch PCB footprints without modification.

Q: Why does TAP685K010SCS have a specified lifetime rating while T350B685K010AS does not?

A: Manufacturers provide reliability data based on internal testing protocols. The TAP685K010SCS specifies 1000 hours at 85°C, providing documented performance data. Absence of specified data for T350B685K010AS does not indicate inferior reliability; it reflects different manufacturer documentation practices.

Q: What is the RoHS compliance difference?

A: T350B685K010AS is RoHS non-compliant; TAP685K010SCS is ROHS3 compliant. Selection depends on application regulatory requirements. RoHS compliance is mandatory for products sold in the European Union and for many industrial and consumer applications.

Q: Are there any circuit performance differences between these parts?

A: No. Both parts have identical electrical specifications: 6.8 µF capacitance, 10 V rating, ±10% tolerance, 6 Ohm ESR, and -55°C to 125°C operating range. Circuit performance is equivalent.