BLS2731-110
Download datasheetMicrowave power transistor
NPN silicon planar epitaxial microwave power transistor in a 2-lead rectangular flange package with a ceramic cap (SOT423A) 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; δ = 10 % | ||||||
| Gp | power gain | 7.5 | dB | |||
| PL | output power | 110 | W | |||
| ηC | collector efficiency | 35 | % | |||
Package / Packing
All type numbers in the table below are discontinued.
| Type number |
Package type, (Package outline) |
Outline version | Packing | Product status | Marking |
Orderable part number, (Ordering code (12NC)) |
|---|---|---|---|---|---|---|
| BLS2731-110 | SOT423 (SOT423A) |
sot423a_po | Trade pack | Withdrawn | Standard Marking |
BLS2731-110,114 (9340 457 80114) |
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 | 2015-11-30 | |
| 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 | 2025-06-03 | |
| RF power application reports for ISM, broadcast, navigation and safety radio applications | Brochure | 2025-06-12 | |
| Packages for RF power transistors | Leaflet | 2025-06-20 |
No documentation available.