433MHz 2W RF Power Amplifier BLT53 | 6V 33dBm Signal Booster

433MHz 2W RF Power Amplifier – BLT53 | Boost Your Wireless Communication Range

Upgrade your wireless communication setup with the BLT53 433MHz 2W RF Power Amplifier. Built on a silicon-based platform, this compact yet powerful signal amplifier delivers a reliable 33dBm (2W) output at 433MHz, making it ideal for long-range digital transmission systems including meter reading handhelds, security systems, hydrological monitoring, model aircraft, and walkie-talkie applications.

Designed for ultra-thin, ultra-small SOT89 packaging, the BLT53A provides near-perfect 50-ohm internal input/output matching and boasts an impressive 65% power efficiency at 6V supply. With built-in anti-ESD protection, it safeguards your circuitry against electrostatic discharge damage — giving you peace of mind in demanding field environments.

Made in Mainland China.

Key Features

• Wide Bandwidth: DC–3GHz operational support for broad frequency compatibility
• High Output Power: 33dBm (2W) output at 433MHz with 6V power supply
• Ultra-Compact SOT89 Package: Perfect for space-constrained PCB designs
• 65% Power Efficiency: Maximizes battery life in portable applications
• Built-in Anti-ESD Protection: Internal diode protects against electrostatic discharge
• Low BOM Cost: Simple to integrate with multiple reference application designs
• Compatible with SI4432, A7102, CC1100: Versatile integration options
• Max Input Power: 23dBm (0.2W) — Note: The amplifier IC cannot handle 1W input

Specifications

Reference Application Notes

• AN2: SI4432 + BLT53A → 3.3V, 1W, 433MHz
• AN3: A7102 + BLT53A → 3.6V, 1W, 433MHz
• AN4: SI4432 + BLT53A → 4.8V, 2W, 433MHz
• AN5: CC1100 + BLT53A → 4.8V, 1W, 433MHz

What's in the Box

• 1 × 2W RF Power Amplifier (BLT53A)

Note: Light reflection and different display settings may cause slight color variations. Measurement tolerance is ±1–3cm.

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For more on RF communication standards and wireless transmission, visit the FCC (Federal Communications Commission) for regulatory guidance on RF devices used in the United States.

Frequently Asked Questions

Q: What is the maximum input power for the BLT53A 433MHz RF Power Amplifier?

A: The maximum input power for the BLT53A is 23dBm (0.2W). It is important not to feed 1W of input power into the amplifier IC, as it is not designed to handle that level and could be damaged.

Q: What devices is the BLT53 RF Power Amplifier compatible with?

A: The BLT53A is compatible with a variety of RF transceiver ICs including the SI4432, A7102, and CC1100. It supports multiple reference application designs operating at 433MHz, making it flexible for use in digital transmission systems, security equipment, meter reading devices, and more.

Q: What applications is the 433MHz 2W RF amplifier best suited for?

A: This 433MHz RF power amplifier is ideal for applications requiring extended communication range at 2W output power, such as wireless meter reading, security monitoring systems, hydrological monitoring, model aircraft radio control, and walkie-talkie signal boosting.

Q: Does this RF amplifier include ESD protection?

A: Yes. The BLT53A features a built-in internal anti-ESD protection diode that guards against electrostatic discharge, helping to protect the device from accidental damage during handling and use.