YQMTO39R

SAW Resonators | TO-39 Metal Hermetic Package

Core Advantages

• Hermetic Metal Package: High hermeticity isolates moisture and impurities, anti-aging and long lifespan; metal housing shields EMI interference, ensuring strong radio frequency stability.
• Wide Temperature and High Reliability: Supports -40°C to +125°C wide temperature range, excellent temperature coefficient, minimal frequency drift, suitable for industrial and automotive extreme environments.
• Strong Electrical Performance: High Q value, low ESR, frequency accuracy up to ±5ppm, pure local oscillator signal, strong anti-interference ability.
• Heat Dissipation and Mechanical Properties: Metal base has good heat dissipation, anti-vibration and anti-shock, suitable for industrial and vehicle vibration conditions.
• Wide Compatibility: Standard plug-in pins, suitable for traditional PCB through-hole technology, no need to modify the board, compatible with most radio frequency transmitting circuits.

Product Introduction

TO-39 SAW Resonator is a plug-in surface acoustic wave device with metal cylindrical hermetic package. It is mainly used for generating and stabilizing the local oscillator frequency of radio frequency circuits, focusing on 20–950MHz mainstream ISM frequency bands (315MHz/433.92MHz/868MHz/915MHz), and is suitable for through-hole PCB technology, which can be compatible with most radio frequency transmitting circuits without modifying the board.

With the advantages of high hermeticity and electromagnetic shielding of metal package, it has the core characteristics of high Q value, low ESR, wide temperature resistance and strong anti-interference. The frequency accuracy can generally reach ±10~±30ppm, the high-precision grade is ≤±5ppm, and the operating temperature covers -40°C~+85°C (automotive grade can reach -40°C~+125°C). It can effectively isolate moisture, impurities and electromagnetic interference, ensuring long-term frequency stability and reliability.

The product is widely used in industrial Internet of Things, automotive electronics, security smart home, high-end radio frequency and other scenarios, and can meet the diversified needs of harsh working conditions, high-precision frequency stabilization and strong anti-interference. It is a highly reliable plug-in frequency source device with both performance and compatibility.

Alternative Products and Reasons

• Abracon (USA) - Series: ASR TO39 Series
• TDK-EPCOS (Japan) - Series: B39 TO39 Series
• Murata (Japan) - Series: RO TO39 Series
• Tai-SAW (Taiwan) - Series: TC TO39 Series
• Shoulder (China) - Series: HDR TO39 Series

Replacement Reason: Mainstream manufacturers such as Abracon and Hoda have begun to gradually stop production.

Key Features

• Package Form: Metal hermetic package, standard plug-in through-hole pins, high mechanical strength, anti-vibration and anti-shock.
• Operating Frequency Band: Mainly 315MHz / 433.92MHz / 868MHz / 915MHz and other ISM frequency bands.
• Frequency Accuracy: Conventional ±10ppm～±30ppm, high-precision grade can reach within ±5ppm.
• Quality Factor: High Q value, good frequency selectivity, low phase noise, stable oscillation.
• Temperature Characteristics: Wide temperature operation, typically -40°C～+85°C, automotive grade can reach -40°C～+125°C.
• Anti-Interference: Metal shell has electromagnetic shielding, strong anti-EMI/EMC ability.
• Environmental Reliability: Hermetic structure is moisture-proof, dust-proof and corrosion-proof, suitable for harsh industrial environments.
• Aging Characteristics: Low annual aging rate, good long-term frequency stability, long service life.

Applications

• Industrial Internet of Things: Industrial wireless remote control, smart meter reading, Internet of Things sensors, radio frequency transmitting modules, suitable for -40°C~+85°C harsh working conditions.
• Automotive Electronics: Car remote keys, vehicle-mounted radio frequency units, vehicle-mounted wireless modules, meeting AEC‑Q200 certification and -40°C~+125°C wide temperature requirements.
• Security Smart Home: Anti-theft alarms, wireless doorbells, smart door locks, infrared alarm systems (315/433MHz mainstream frequency bands).
• High-End Radio Frequency: GPS auxiliary frequency stabilization, walkie-talkies, low-frequency radio frequency systems, suitable for high-precision and strong shielding radio frequency source requirements.
• Consumer Electronics: Toy remote control, etc.

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