TAC684K050P02-F Equivalent & Substitute Parts

Part Overview

The TAC684K050P02-F is a 0.68 µF molded tantalum capacitor rated for 50 V operation in an axial through-hole package. Manufactured by Cornell Dubilier Electronics (CDE), this component is classified as obsolete. Due to its obsolete status and limited availability compared to active alternatives, identifying equivalent substitute parts ensures design continuity and supply chain reliability. Equivalent components must maintain identical electrical specifications and physical dimensions to guarantee direct interchangeability.

Substiute Parts

TAC684K050P02-F

Cornell Dubilier Electronics (CDE)In Stock: 693TAC684K050P02-F Datasheet

Current PartRFQ

173D684X9050VE3

Vishay SpragueIn Stock: 763173D684X9050VE3 Datasheet

DirectRFQ

173D684X9050VWE3

Vishay SpragueIn Stock: 792173D684X9050VWE3 Datasheet

DirectRFQ

T322B684K050AT

KEMETIn Stock: 1354T322B684K050AT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TAC684K050P02-F are qualified based on strict equivalence of the following electrical and mechanical parameters:

• Capacitance: 0.68 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Rating: 50 V (exact match required)
• Package Type: Axial through-hole (exact match required)
• Physical Dimensions: 0.110" Dia x 0.290" L (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

All identified substitutes meet these criteria and are manufactured by active suppliers (Vishay Sprague, KEMET), ensuring long-term availability and continued support.

Parameter Comparison

Engineering Selection Recommendations

Primary Alternatives: The 173D684X9050VE3 and 173D684X9050VWE3 (Vishay Sprague TANTALEX™ 173D series) are active products from an established manufacturer with superior availability and long-term support. The difference between these two variants is packaging: tape and box (TB) versus tape and reel (TR), allowing selection based on procurement volume and assembly requirements.

Secondary Alternative: The T322B684K050AT (KEMET T322 series) is an active product with higher inventory levels. This part features a specified ESR of 10Ohm, which provides additional technical data compared to other substitutes.

All three substitutes carry ROHS3 compliance and are supplied by manufacturers with active product portfolios, eliminating obsolescence risk associated with the original TAC684K050P02-F.

Frequently Asked Questions (FAQ)

Q: Are the Vishay Sprague 173D684X9050VE3 and 173D684X9050VWE3 electrically identical? A: Yes. Both parts share identical electrical specifications (0.68 µF, ±10%, 50 V, -55°C to 125°C). The designations "VE3" (Tape & Box) and "VWE3" (Tape & Reel) indicate packaging format only. Selection depends on procurement quantity and assembly processing requirements.

Q: Can the T322B684K050AT be used as a direct replacement? A: Yes. The KEMET T322B684K050AT meets all electrical and mechanical substitution criteria. It shares identical capacitance, tolerance, voltage rating, physical dimensions, and operating temperature range. The specified ESR of 10Ohm does not limit substitutability for general-purpose applications.

Q: What should be verified during substitution? A: Confirm that the axial through-hole mounting configuration and 0.110" diameter x 0.290" length footprint are compatible with your PCB layout and assembly process. All substitutes maintain these physical specifications.

Q: Why is the TAC684K050P02-F obsolete? A: The original CDE component has been discontinued. Active alternatives from Vishay Sprague and KEMET provide equivalent functionality with continued manufacturer support and assured availability.