Genuine Motorola SMD Transistor for Radio Circuit Repair
The Motorola 4811056B08 is a precision surface-mount transistor designed for professional repair and maintenance of Motorola radio equipment. This genuine OEM semiconductor component with the 48S11056A08 A/I designation provides reliable amplification and switching in various radio circuits. The compact SOT-23 package ensures proper fit in space-constrained modern circuit board designs.
Key Features
- Genuine Motorola factory replacement part - ensures exact specifications and reliable performance
- 48S11056A08 A/I designation for precise circuit matching
- SOT-23 three-terminal surface-mount package
- Compact design suitable for high-density PCB layouts
- Reliable amplification and switching performance
- Used in RF, audio, and control circuits throughout radio equipment
- Manufactured to Motorola's stringent quality standards
Compatible Models
- Various Motorola commercial and professional two-way radio models
- Used in amplifier stages, switching circuits, and signal processing applications
- Consult your radio's service manual or schematic diagram for exact component location
What's Included
- One (1) Motorola 48S11056A08 surface-mount transistor
Application and Installation
Professional Installation Required: This surface-mount transistor requires specialized soldering equipment and proper technique for installation. SMD transistor replacement demands precision tools including a temperature-controlled soldering station with fine tips, magnification equipment, ESD-safe work environment, and careful attention to component orientation. This repair should only be performed by qualified electronics technicians or certified Motorola service centers with experience in surface-mount technology.
Transistors in radio circuits serve various functions including RF amplification, audio amplification, voltage regulation, switching, and signal processing. The three-terminal SOT-23 package typically has base, emitter, and collector connections that must be properly oriented during installation. Verify the component pinout matches the PCB layout before soldering.
Critical Installation Notes: Always observe proper ESD protection when handling transistors, as they are sensitive to static discharge. Verify correct component orientation by checking the PCB silkscreen markings and comparing with the original component. Apply solder quickly to avoid overheating the transistor. Use flux to ensure good solder joints on the small SMD pads. After installation, clean any flux residue and verify proper circuit operation.
When replacing a failed transistor, investigate the cause of failure. Check associated biasing resistors, coupling capacitors, and power supply voltages for proper operation. Failed transistors often indicate problems in other circuit areas that must be corrected to prevent repeated failures.
Technical Specifications
- Type: Surface-Mount Transistor
- Part Number: 48S11056A08 A/I
- Package: SOT-23 (3-terminal)
- Mounting: Surface-mount
- Terminals: 3-pin configuration
Part Numbers
- Motorola Part Number: 4811056B08
- Component Designation: 48S11056A08 A/I Transistor
- Package Type: SOT-23 Surface-Mount
