The SRF3775 is a Premium grade MRF455 and has High Gain selection G or Blue beta or higher. You can use the SRF3775 as a direct replacement for any application where the MRF455 was used.
New Old Stock * No longer available for export MFR: Motorola SKU: SRF3775MP
The SRF3749 is Premium grade MRF454. This transistor has High Gain selection G or Blue beta or higher. You can use the SRF3749 as direct replacement for any application where MRF454 80 Watt transistor was used.
New Old Stock * No longer available for export MFR: Motorola SKU: SRF3749
Transistor 70W 12.5V 14-30 MHz 0.380" Flange High Gain Replacement for MRF455 New Old Stock * No longer available for export MFR: Motorola, USA SKU: SRF7000-90
The SRF3614 was Motorola select version of MRF646. The SRF3614 had to meet specific gain requirement to receive this part number. All SRF part numbers were Motorola special versions of standard MRF numbers.
New Old Stock * No longer available for export MFR: Motorola SKU: SRF3614MP
The SRF3775 is a Premium grade MRF455 and has High Gain selection G or Blue beta or higher. You can use the SRF3775 as a direct replacement for any application where the MRF455 was used.
New Old Stock * No longer available for export MFR: Motorola SKU: SRF3775