4257-52 The 4257-52 is an RF switch from pSemi, operating up to 3 GHz with a 20-pin QFN package.
Mfr Part #:

4257-52

Available from 1 distributors
Mfr Name: pSemi
pSemi
The 4257-52 is an RF switch from pSemi, operating up to 3 GHz with a 20-pin QFN package.
✓ Total Stock: 1,712 pcs
$ Price Range: $0.75

4257-52 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
1,712 pcs
1712 pcs On Request 1 On Request On Request On Request On Request On Request

4257-52 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Circuit
Frequency Range
IIP3
Impedance
Insertion Loss
Isolation
Lead Spacing
Mounting Type
Operating Temperature
P1dB
RF Type
Supplier Device Package
Test Frequency
Topology
Voltage

4257-52 Description

Short technical summary and product information.

The 4257-52 is an RF switch designed for high-frequency applications, supporting an operating frequency range from 10 MHz to 3 GHz. It features a typical insertion loss of 0.75 dB at 1000 MHz and provides input-to-output isolation of 64 dB at the same frequency. The device operates with a supply voltage between 2.7 V and 3.3 V and is housed in a 20-pin QFN package suitable for surface mounting. Its electrical characteristics make it suitable for RF signal routing, switching, and antenna switching in communication systems. The device's switching time is approximately 2 microseconds, and it can handle input power levels up to 31 dBm at 1000 MHz. Designed for use in RF and microwave circuits, the 4257-52 offers high isolation and low insertion loss, making it suitable for applications requiring high performance and reliability in RF switching.

4257-52 Quick Information

Product Type: RF switch
Canonical Name: IC RF SWITCH SPDT 3GHZ 20QFN

4257-52 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

4257-52 Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

4257-52 Features

  • Supports frequency range from 10 MHz to 3 GHz
  • Typical insertion loss of 0.75 dB at 1000 MHz
  • Input to output isolation of 64 dB at 1000 MHz
  • Operates with 2.7 V to 3.3 V supply voltage
  • Switching time approximately 2 microseconds

4257-52 Applications

  • Ideal for RF signal switching in communication systems
  • Used in antenna switching modules
  • Suitable for microwave RF routing
  • Applicable in test and measurement equipment

4257-52 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating frequency range of the 4257-52?

The 4257-52 supports an operating frequency range from 10 MHz to 3 GHz.

What is the typical insertion loss at 1000 MHz?

The typical insertion loss at 1000 MHz is 0.75 dB.

What is the input to output isolation at 1000 MHz?

The input to output isolation at 1000 MHz is 64 dB.

What is the operating voltage range for the 4257-52?

The device operates with a supply voltage between 2.7 V and 3.3 V.

What is the package type of the 4257-52?

The 4257-52 is housed in a 20-pin QFN package.

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