Key facts
- Brand
- Siemens
- Model
- BB 641
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-04-05
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Siemens BB 641 Diode Datasheet
The BB 641 is a silicon variable capacitance diode intended for VHF hyperband TV/TR tuners, offering a high capacitance ratio and low series resistance. It is supplied in a SOD‑323 surface‑mount package.
Key specifications include a reverse voltage rating of 30 V (35 V for R > 5 kΩ), forward current of 20 mA, operating temperature range from –55 °C to +150 °C, and a typical capacitance of 69 pF at 1 V bias and 1 MHz. The device also features a junction‑ambient thermal resistance below 450 K/W and a series inductance of about 1.8 nH.
Siemens BB 641 specifications
| Reverse voltage (Va) | 30 V |
|---|---|
| Reverse voltage (R > 5 kΩ) (Vom) | 35 V |
| Forward current (Ir) | 20 mA |
| Operating temperature range | -55 °C to +150 °C |
| Junction‑ambient thermal resistance (Risa) | < 450 K/W |
| Typical diode capacitance (1 V, 1 MHz) | 69 pF |
| Series inductance (L) | 1.8 nH |
| Package type | SOD‑323 |
Source: Siemens BB 641 Diode Datasheet
All Siemens BB 641 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum reverse voltage for the Siemens BB 641 diode?
The maximum reverse voltage (Va) is 30 V.
What is the typical capacitance of the BB 641 at 1 V bias and 1 MHz?
Typical capacitance is 69 pF.
What is the maximum reverse voltage rating of the BB 641 diode?
The BB 641 diode is rated for a reverse voltage of 30 V (35 V when the series resistance exceeds 5 kΩ).
What is the typical diode capacitance at 1 V and 1 MHz?
At 1 V and 1 MHz, the typical capacitance is 69 pF.