BLS2731-50
Download datasheetMicrowave power transistor
NPN silicon planar epitaxial microwave power transistor in a 2-lead rectangular flange package with a ceramic cap (SOT422A) with the common base connected to the flange.
Features and benefits
- Emitter ballasting resistors improve ruggedness
- Gold metallization ensures excellent reliability
- Interdigitated emitter-base structure provides high emitter efficiency
- Internal input and output matching networks for an easy circuit design
- Multicell geometry improves power sharing and reduces thermal resistance
- Suitable for short and medium pulse applications
Applications
- Common base class-C pulsed power amplifiers.
- Radar applications in the 2.7 to 3.1 GHz band.
Parametrics
| Symbol | Parameter | Conditions | Min | Typ/Nom | Max | Unit |
|---|---|---|---|---|---|---|
| frange | frequency range | 2700 | 3100 | MHz | ||
| Mode of operation: Class C; tp = 100 µs; σ = 10% | ||||||
| Gp | power gain | PL = 60 W | 9 | dB | ||
| PL | output power | 50 | 60 | W | ||
| ηC | collector efficiency | PL = 60 W | 35 | 40 | % | |
Package / Packing
All type numbers in the table below are discontinued.
| Type number | Package | Outline version | Packing | Product status | Marking |
Orderable part number, (Ordering code (12NC)) |
|---|---|---|---|---|---|---|
| BLS2731-50 | SOT422 (SOT422A) |
sot422a_po | Trade pack | Withdrawn | Standard Marking |
BLS2731-50,114 (9340 457 70114) |
Discontinuation information
Pinning info
| Pin | Symbol | Description | Simplified outline | Graphic symbol |
|---|---|---|---|---|
| 1 | C | collector |
|
|
| 2 | E | emitter | ||
| 3 | B | base |
Documentation
| Title | Type | Date | |
|---|---|---|---|
| Microwave power transistor | Data sheet | 1998-01-30 | |
| Mounting and soldering of RF transistors in air cavity packages | Application note | 2025-02-03 | |
| RF power solutions for ISM, broadcast, navigation and safety radio applications | Brochure | 2025-04-17 | |
| RF power application reports for ISM, broadcast, navigation and safety radio applications | Brochure | 2025-04-17 | |
| Packages for RF power transistors | Leaflet | 2024-10-25 |
No documentation available.