Product Overview
Vishay 293D Series Solid Tantalum SMD Capacitor, 22µF 16V, Case C (2312/6032), ±10% Tolerance, 1.4Ω ESR, Matte Tin Terminations
Condition
Unused NOS. Sourced from an electronics distributor consolidating inventory. Visual inspection clear - black molded body with silver end terminations and center marking consistent with 293D series production. On cut tape.
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Product Overview
Vishay Sprague 293D226X9016C2T - solid tantalum surface-mount chip capacitor, 22µF at 16V, Case C (EIA 2312 / Metric 6032-28 footprint). Part of Vishay's TANTAMOUNT™ 293D series, these are standard industrial-grade SMD tantalums used for decoupling, bypass, and power-rail filtering on densely populated PCBs. Capacitance tolerance is ±10% (X9 designation). Termination is matte tin (designation "2"). Dielectric is tantalum pentoxide over a manganese dioxide electrolyte.
Key Features
- Capacitance: 22µF
- Voltage rating: 16 VDC at +85°C
- Capacitance tolerance: ±10%
- Case code: C (EIA 2312 / Metric 6032-28)
- ESR: 1.4 Ohms
- Termination: matte tin
- Dielectric: tantalum pentoxide / manganese dioxide
- Format: cut tape
Applications
- Depot repair tech pulls a shorted tantalum off an industrial controller board with a hot-air station, cleans the pads, and drops this Case C replacement directly onto the existing 2312 footprint - no trace patching, no clearance compromise.
- Embedded systems developer building a prototype on a KiCad or Altium layout with a 6032-28 footprint spec'd in; these drop onto the stencil pass and into the reflow oven without substitution risk or DC-bias capacitance loss that would hit an MLCC at the same value.
- Retrocomputing restorer doing a preventative re-cap on a vintage motherboard or arcade board, replacing failure-prone old tantalums before they short and take out a custom IC - no liquid electrolyte means no future leakage or PCB corrosion.
- Maker or hobbyist hand-soldering under a microscope for a 5V or 3.3V rail decoupling application where a low-profile SMD tantalum fits the board better than a through-hole electrolytic.
Frequently Asked Questions
Will this fit my board's existing tantalum footprint?
Case C corresponds to EIA 2312 / Metric 6032-28. It is physically incompatible with smaller Case A or B footprints and larger Case D or E footprints. If your board calls out a Case C or 2312 tantalum, this is a direct fit. Check your PCB layout or the failed component's markings to confirm case code before ordering.
What voltage rails is this appropriate for in a real design?
Rated 16 VDC at +85°C. Standard design practice for solid tantalum capacitors requires a minimum 50% voltage derating, which means this part is typically used on 5V or 3.3V rails, or up to roughly 8V, not on 12V or 16V rails directly. Applying it at or near its full rated voltage with fast transients increases failure risk.
What is the RoHS-compliant equivalent?
The RoHS-compliant lead-free variant is 293D226X9016C2TE3, which carries 100% matte tin terminations (E3 suffix). The part offered here is 293D226X9016C2T without the E3 designation. Verify your manufacturing requirements before use in lead-free assembly processes.
Does this include any accessories or additional components?
Capacitors only, on cut tape. No additional hardware or accessories included.
Is this suitable for high-frequency switching regulator applications?
ESR is 1.4 Ohms, which is standard industrial grade. Applications requiring ultra-low ESR for high-frequency switching regulators may need a low-ESR series such as Vishay TR3 or a comparable alternative. For decoupling, bypass, and power-rail filtering in typical logic and analog circuits, 1.4 Ohms is within normal range.
Solid tantalum doesn't drift, doesn't dry out, and doesn't leave a puddle on your pads ten years from now. Whatever board you're bringing back to life, this is the part that stays fixed.
