This document describes the features and characteristics of the 738D and CT9 models of Vishay Tansitor capacitors, including: hermetic glass to tantalum seal, high CV per unit volume, extremely low leakage current, wide temperature range, glass-to-tantalum true hermetic anode seal, resistance to thermal shock, etc.
The 738D CT9 series are wet tantalum capacitors featuring a glass‑to‑tantalum hermetic seal and sintered anode construction. They are designed for high‑reliability applications and offer a wide temperature range and low leakage current.
Key data include temperature limits, capacitance tolerances, voltage ratings, dimensions, and packaging options. Detailed standard and extended rating tables list capacitance, impedance, leakage, and voltage derating for each part number.
| Operating temperature range | -55 °C to +175 °C |
|---|---|
| Capacitance tolerance | +20 % standard, +10 % and +5 % optional |
| DC leakage current (max) | Not to exceed values in Standard Ratings Tables |
| Standard voltage rating (example) | 6.3 VDC at +85 °C, 4 VDC at +125 °C, 3 VDC at +175 °C |
| Packaging | Formed plastic trays standard; tape and reel not recommended |
They operate from –55 °C up to +175 °C.
Typical ratings are 6.3 VDC at +85 °C, 4 VDC at +125 °C, and 3 VDC at +175 °C.
They are supplied in formed plastic trays; tape and reel packaging is not recommended.
Standard tolerance is ±20 %; tighter tolerances of ±10 % and ±5 % are also available.