BLS2731-20
Download datasheet This product has been discontinued.Click here for discontinuation information.
BLS2731-20
Download datasheet
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 (SOT445C) 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 | PL = 25 W | 10 | dB | ||
| PL | output power | 20 | 25 | W | ||
| ηC | collector efficiency | PL = 25 W | 35 | 40 | % | |
Package / Packing
All type numbers in the table below are discontinued.
| Type number | Package | Outline version | Reflow-/Wave soldering |
Packing | Product status | Marking |
Orderable part number, (Ordering code (12NC)) |
|---|---|---|---|---|---|---|---|
| BLS2731-20 | CDFM2 (SOT445C) |
sot445c_po | Trade pack | Withdrawn | Standard Marking |
BLS2731-20,114 (9340 458 00114) |
Discontinuation information
| Type number | Ordering code (12NC) | Last-time buy date | Last-time delivery date | Replacement product | DN Notice | Status | Comments |
|---|---|---|---|---|---|---|---|
| BLS2731-20 | 9340 458 00114 | 2011-03-31 | 2011-06-30 | BLS9G2735L-50 | 66 |
|
Standard End of Life. |
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 | 1998-11-25 | |
| Mounting and Soldering of RF transistors in Air Cavity Packages | Application note | 2022-09-15 | |
| RF Power solutions for Broadcast, Navigation and Safety Radio, Industrial, Scientific and Medical applications | Brochure | 2024-03-25 | |
| RF Power application reports for Broadcast, Navigation and Safety Radio, Industrial, Scientific and Medical applications | Brochure | 2024-02-06 | |
| Packages for RF Power Transistors | Leaflet | 2024-03-25 |
No documentation available.