Technology & family context
T520 is a polymer tantalum family. T491 documentation covers industrial-grade MnO₂ devices. Confirm the exact grade and document revision rather than extending one family’s claims to another.
Manufacturer series references
Verified technical example
An example for document review, not an offer, stock declaration, lifecycle confirmation or approved substitute.
| MPN | T520B107M006ATE070 |
|---|---|
| Series | T520 |
| Capacitance | 100 µF |
| Rated voltage | 6.3 VDC |
| Case | B / 3528 |
| ESR | 70 mΩ at 100 kHz, 25°C |
Common procurement difficulties
A matching capacitance and voltage may hide differences in ESR, case code, packaging suffix or qualification. For production orders, separate immediate quantity, annual demand and the delivery schedule.
What to verify
- Full MPN, technology and manufacturer series
- Capacitance, rated voltage, tolerance, ESR and leakage test conditions
- Ripple, derating, temperature, polarity and application requirements
- Case dimensions, land pattern, terminals and packaging suffix
- Batch/date-code requirements, source documents and required qualification
Lifecycle & obsolete requirements
Confirm lifecycle at complete-MPN level, including suffix and date of the manufacturer notice. Separate discontinued, not recommended for new designs and temporarily unavailable. Historic documentation is not proof of current production. An alternative requires engineering approval before changing the BOM.
How TantalumCore supports you
We review the requested ordering code and documentation, research possible supply channels and organize offer-specific checks. We can help assemble an alternative comparison; your engineering team approves suitability. Quantity, price, source evidence and delivery require confirmation in a written offer.
View sourcing services →Manufacturer sources
Sources reviewed: 30 October 2026