The LM200802-M-A-300 is a medium-power broadband surface-mount PIN diode limiter module developed by MACOM Technology Solutions. 

This passive two-stage power limiter operates across an impressive frequency range of 20 MHz to 8 GHz, 

making it suitable for various RF and microwave applications.

Key functional characteristics include:

• Broadband Performance: The device maintains consistent performance across its entire 20 MHz to 8 GHz operational bandwidth

• Power Handling: Capable of handling 44 dBm (approximately 25W) of continuous wave (CW) 

• RF input power and 50 dBm (100W) peak power (with 1 μs RF pulse width at 0.1% duty cycle)

• Low Insertion Loss: Typical insertion loss of just 1.4 dB, minimizing impact on system noise figure

• Leakage Control: Features low flat leakage power (<20 dBm) and low spike leakage energy (<0.1 Ergs) for effective LNA protection

• Thermal Management: Excellent thermal resistance characteristics (NIP diode: <20°C/W, PIN diode: <90°C/W, junction to package bottom)

The limiter employs a hybrid design incorporating both silicon NIP (coarse limiting) and PIN (fine limiting) diodes on a ceramic substrate, 

eliminating the need for external RF chokes to complete DC bias return paths.

Applications

The LM200802-M-A-300 finds application in various RF and microwave systems requiring receiver protection:

1. Radar Systems: Used in both military and civilian radar receivers to protect sensitive low-noise amplifiers (LNAs) from high-power pulses

2. Communication Equipment: Employed in base stations, repeaters, and other telecom infrastructure to safeguard receivers from overload

3. Electronic Warfare Systems: Provides protection in ECM/ECCM systems where unexpected high-power signals may be encountered

4. Test & Measurement: Used in RF test equipment to prevent damage from accidental overdriving

5. Satellite Communication: Protects sensitive satellite receivers from potential damage due to high-power signals

The surface-mount package (8mm × 5mm × 2.5mm) makes it particularly suitable for compact, high-density designs in these applications.

Similar Model Analysis

Several comparable limiter modules are available in the market, with key alternatives including:

1. LM202802-MC-300: Similar broadband limiter from MACOM with potentially different power handling characteristics

2. LM501202-MC-300: Another MACOM limiter variant, possibly offering different frequency or power specifications

3. MADL-011014/011015: MACOM's limiter modules with potentially different packaging or performance parameters

4. SKY13330-397LF: While primarily an RF switch (SPDT), it offers high-power handling (100MHz to 6GHz) and could serve in some protection applications

5. SKY12211-478LF: High-power silicon PIN diode switch (5MHz to 2.7GHz) that might be considered for certain protection circuits

When comparing these alternatives, the LM200802-M-A-300 stands out for its exceptionally wide bandwidth (20MHz-8GHz) 

combined with robust power handling capabilities (44dBm CW, 50dBm peak). I

ts integrated NIP+PIN diode architecture provides superior protection compared to single-stage limiters,

 while the surface-mount ceramic package offers better thermal performance than plastic alternatives.

The device's RoHS compliance and lack of requirement for external control signals further enhance its suitability for modern, 

environmentally-conscious designs. 

For applications demanding the broadest possible bandwidth with high power handling in a compact form factor,

 the LM200802-M-A-300 remains a leading choice among available limiter modules.

The following parts are popular search parts in Diodes - RF.

The following parts include "LM200802-M-A-300-T" in ISSI, Integrated Silicon Solution Inc“LM200802-M-A-300-T”.

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