M39003/09-0080/HSD vs T97D476K050N8TSC
| Part Number |
|
|
| Category | Tantalum Capacitors | Tantalum Capacitors |
| Manufacturer | Vishay Sprague | Vishay Sprague |
| Description | CAP TANT 15UF 20% 50V AXIAL | CAP TANT 47UF 10% 50V 2917 |
| Package | Bulk | Tape & Reel (TR) |
| Series | Military, MIL-PRF-39003/9, CSR21 | TANTAMOUNT®, T97 |
| Type | Hermetically Sealed | Conformal Coated |
| Features | High Reliability | High Reliability |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 85°C |
| Mounting Type | Through Hole | Surface Mount |
| Package / Case | Axial | 2917 (7343 Metric) |
| Tolerance | ±20% | ±10% |
| Size / Dimension | 0.289" Dia x 0.686" L (7.34mm x 17.42mm) | 0.299" L x 0.173" W (7.60mm x 4.40mm) |
| Voltage - Rated | 50 V | 50 V |
| Lead Spacing | - | - |
| Ratings | - | COTS |
| Height - Seated (Max) | - | 0.138\" (3.50mm) |
| Capacitance | 15 µF | 47 µF |
| ESR (Equivalent Series Resistance) | 190mOhm | - |
| Lifetime @ Temp. | - | - |
| Failure Rate | M (1%) | - |
| Manufacturer Size Code | C | D |

-
1. Why are tantalum capacitors so expensive?
Tantalum ore resources are scarce and the mining cost is high.
The manufacturing process is complex and the yield is relatively low.
It has excellent electrical characteristics, making it indispensable in high-end applications. -
2. What is the expected life of tantalum capacitors?
Under normal circumstances, it can range from thousands of hours to tens of thousands of hours, depending on the working conditions and manufacturer specifications.
-
3. Will tantalum capacitors deteriorate?
Yes, tantalum capacitors may gradually lose some of their performance when stored for a long time or in adverse environments.
For example, long-term exposure to high temperature and humidity may cause the electrolyte to evaporate or chemically change. -
4. Is tantalum better than tungsten?
It depends on the application. For capacitors, tantalum is preferred due to its unique properties; while in some other industrial uses, such as making filaments, tungsten is preferred.

