TAP684M035SCS Equivalent & Substitute Parts

Part Overview

The TAP684M035SCS is a 0.68 µF conformal coated tantalum capacitor rated for 35 V with ±20% tolerance, manufactured by KYOCERA AVX. This radial through-hole component is designed for general purpose applications requiring reliable energy storage in compact form factors. The part is currently active in production with 1119 units in stock. Substitute parts are identified when design requirements allow for tighter tolerance specifications or when inventory constraints necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

TAP684M035SCS

KYOCERA AVXIn Stock: 1182TAP684M035SCS Datasheet

Current PartRFQ

TAP684K035SCS

KYOCERA AVXIn Stock: 4838TAP684K035SCS Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TAP684M035SCS is permissible when the following conditions are met:

Mandatory Matching Parameters:

• Capacitance: 0.68 µF (exact match required)
• Voltage Rating: 35 V (exact match required)
• Type: Conformal Coated (exact match required)
• ESR: 10 Ohm (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial (exact match required)
• Physical Dimensions: 0.177" Dia (4.50mm), Height 0.276" (7.00mm), Lead Spacing 0.098" (2.50mm) (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)

Allowable Variation Parameters:

• Tolerance: May be tightened from ±20% to ±10% without affecting circuit compatibility
• RoHS Status: Both parts must maintain ROHS3 Compliance

The TAP684K035SCS qualifies as a direct substitute because it maintains all mandatory electrical and mechanical parameters while offering improved tolerance specification (±10% versus ±20%).

Parameter Comparison

Engineering Selection Recommendations

Both TAP684M035SCS and TAP684K035SCS are active production components with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component sourcing.

The TAP684K035SCS offers superior tolerance specification at ±10%, providing tighter capacitance accuracy compared to the ±20% tolerance of the TAP684M035SCS. This tighter tolerance may be advantageous in applications where capacitance precision directly impacts circuit performance or tuning characteristics.

Selection between these parts should be based on application tolerance requirements and inventory availability. Both parts are electrically and mechanically interchangeable within the specified parameter ranges. The TAP684K035SCS currently maintains higher inventory levels (4823 units versus 1119 units), which may influence procurement decisions for high-volume production runs.

Frequently Asked Questions (FAQ)

Q: Can TAP684K035SCS replace TAP684M035SCS in existing designs?

A: Yes. The TAP684K035SCS is a direct substitute. All electrical parameters, physical dimensions, and environmental specifications are identical. The only difference is improved tolerance specification (±10% versus ±20%), which enhances capacitance accuracy without affecting circuit compatibility.

Q: What is the significance of tolerance differences between these parts?

A: Tolerance defines the allowable deviation of actual capacitance from the nominal 0.68 µF value. The TAP684M035SCS allows ±20% deviation (0.544 µF to 0.816 µF), while the TAP684K035SCS allows ±10% deviation (0.612 µF to 0.748 µF). Applications requiring tighter capacitance control benefit from the ±10% specification.

Q: Are the physical dimensions identical between both parts?

A: Yes. Both parts share identical radial package dimensions: 0.177" diameter (4.50mm), maximum seated height of 0.276" (7.00mm), and lead spacing of 0.098" (2.50mm). PCB layout and mechanical clearance requirements are identical.

Q: Do both parts meet current compliance standards?

A: Yes. Both TAP684M035SCS and TAP684K035SCS are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component use in regulated markets.

Q: What is the operating temperature range for both parts?

A: Both parts operate across -55°C to 125°C with a lifetime specification of 1000 hours at 85°C, ensuring reliable performance across industrial and commercial temperature ranges.