Mini-Circuits: RF Limiter - Mini-Circuits -Macnica

Product Summary

Mini-Circuits RF limiters are devices designed for receiver protection applications in the RF and microwave domains, offering a wide bandwidth range (approximately 100 kHz to 8.2 GHz). These devices are inserted into RF signal lines and protect sensitive circuits such as low-noise amplifiers (LNAs) from excessive input by limiting the output when the input signal exceeds a certain level.

Furthermore, Mini-Circuits offers a wide range of products, including multiple package types (surface mount, coaxial, and plug-in) that can be selected according to application and mounting conditions.

Product features

- RF circuitry is protected by output limiting during excessive input.
• Supports a wide bandwidth from 100kHz to 8.2GHz (depending on the model)
• Robust structure based on the coaxial model
• A lineup of small surface mount packages using LTCC technology.
• High-speed recovery characteristics minimize signal interference.

Product lineup

Please see the manufacturer's website for details.
RF Limiters

Surface mount type

model number	Frequency range (MHz)	Insertion Loss (dB) Typ	Input power range (dBm)
CLM-83-2W+	30 ～ 8200	0.5	12 ～ 32
RLM-23+	950 ～ 2050	0.7	5 ～ 30
RLM-23-1WL+	100 ～ 2500	0.7	5 ～ 30
RLM-33+	30 ～ 3000	0.23	12 ～ 30
RLM-33-2W+	0.2 ～3000	0.25	12 ～ 33
RLM-33H+	30 ～ 3000	0.23	17 ～ 30
RLM-43-5W+	20 ～ 4000	0.36	10 ～ 37
RLM-63-2W+	30 ～ 6000	0.3	12 ～ 32
RLM-512-4WL+	50 ～ 512	0.6	5 ～ 36
RLM-521-2WL+	0.5 ～ 520	0.2	9 ～ 32
RLM-751-2WL+	3 ～ 750	0.2	5 ～ 33

Coaxial type

model number	Frequency range (MHz)	Insertion Loss (dB) Typ	Input power range (dBm)
ULM-63-2W-N+	30 ～ 6000	0.5	12 ～ 33
VLM-33-S+	30 ～ 3000	0.23	12 ～ 30
VLM-33W-2W-S+	0.2 ～ 3000	0.2	12 ～ 33
VLM-52-S+	10 ～ 500	0.5	10 ～ 20
VLM-63-2W-S+	30 ～ 6000	0.4	12 ～ 33
VLM-73-1W-S+	30 ～ 7000	0.4	12 ～ 30
VLM-83-2W-S+	30 ～ 8200	1	12 ～ 32
ZFLM-43-5W+	20 ～ 4000	0.5	10 ～ 37
ZFLM-252-1WL-S+	100 ～ 2500	0.7	5 ～ 30

Plug-in type

model number	Frequency range (MHz)	Input power range (dBm)
PLS-1+	0.1 ～ 150	6 ～ 20

Assumed application

• RF receiving front end (LNA protection)
- Input protection for RF measuring instruments (spectrum analyzers, etc.)
- Overpower protection for communication equipment
RF testing and evaluation environment

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