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BF1108;BF1108R
General description
These switches are a combination of a depletion type Field-Effect Transistor (FET) and a band-switching diode in an SOT143B (BF1108) or SOT143R (BF1108R) package. The low loss and high isolation capabilities of these devices provide excellent RF switching functions. The gate of the MOSFET can be isolated from ground with the diode, resulting in low losses. Integrated diodes between gate and source and between gate and drain protect against excessive input voltage surges.
CAUTION
This device is sensitive to ElectroStatic Discharge (ESD). Therefore care should be taken
during transport and handling.
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| BF1108 | 9340 556 11215 | Volume production | SOT143B
(SOT4) | Tape reel smd | Standard Marking | BF1108
| week 47, 2002 | |
| BF1108R | BF1108R T/R | 9340 556 41215 | Volume production | SOT143R
(SC-61B) | Tape reel smd | Standard Marking | BF1108R
| week 47, 2002 |
| BF1108R | 9340 556 41235 | Volume production | SOT143R
(SC-61B) | Tape reel smd | Standard Marking | BF1108R
| week 47, 2002 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Order quantity | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|---|
| BF1108 | 9340 556 11215 | ASIA | SACL - Hong Kong/China | yes | 1 | 01/08/2009 | Buy online | Order samples | |
| BF1108R | 9340 556 41215 | 0.3600 | NA | AVNET ELECTRONICS MARKETING | 3,000 | 1/7/2009 | Buy online | Order samples | |
| NA | DIGI-KEY CORPORATION | 3,000 | 1/6/2009 | Buy online | |||||
| NA | DIGI-KEY CORPORATION | 3,628 | 1/6/2009 | Buy online | |||||
| ASIA | SACL - Hong Kong/China | yes | 3000 | 01/08/2009 | Buy online | ||||
| BF1108R | 9340 556 41235 | not available |
Applications
- Various RF switching applications such as:
- Passive loop through for VCR tuner
- Transceiver switching
Parametrics/similar products
| Type number | Package | VDS(V) | ID(mA) | MODE | RDS(on) MAX(Ohm) | IGSS max(nA) | VSG max(V) | S21(ON) max(dB) | S21(OFF) max(dB) | [S21(On)]2 max | [S21(Off)]2 min |
|---|---|---|---|---|---|---|---|---|---|---|---|
| BF1108 | SOT143B
(SOT4) | 3 | 10 | depl. | 20 | 100 | 7 | 3 | 30 | 3 | 30 |
| BF1108R | SOT143R
(SC-61B) | 3 | 10 | depl. | 20 | 100 | 7 | 3 | 30 | 3 | 30 |
Similar products
BF1108;BF1108R
links to the similar products page containing an overview of products that are similar in
function or related to the type number(s) as listed on this page.
The similar products page includes products from the same catalog tree(s),
relevant selection guides and products from the same functional category.
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