BLS2731-50
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This product has been discontinued.
Click here for discontinuation information.
The replacement is: BLS9G2735L-50
The replacement is: BLS9G2735L-50
Microwave 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 |
|---|---|---|---|---|---|---|
| Section-0 | ||||||
| frange | frequency range | 2700 | 3100 | MHz | ||
| Section-1 | ||||||
| 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 type, (Package outline) |
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sot422a_po | Trade pack | Withdrawn | Standard Marking |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 (934045770114) |
Discontinuation information
| Type number | 12NC | OPN | LTB date | LTD date | Replacement | DN notice | Product status |
|---|---|---|---|---|---|---|---|
| BLS2731-50 | 934045770114 | BLS2731-50,114 | 2011-03-31 | 2011-06-30 | BLS9G2735L-50 | Withdrawn |
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 | 2026-04-17 | |
| RF power application reports for ISM, broadcast, navigation and safety radio applications | Brochure | 2026-04-17 | |
| Packages for RF power transistors | Leaflet | 2026-04-17 |
No documentation available.