SW-489 Datasheet – High Power Switch

This is one of the Power Switch types.

Part Number : SW-489

Function : High power switch

Package : FQFP 12-lead 3x3mm

Manufactures : Macom, Tyco

See the preview image and the PDF file for more information.

Images :

SW-489 datasheet pdf

Description :

SW-489 is a GaAs PHEMT MMIC single pole three throw (SP3T) high power switch in a low cost miniature FQFP 12-lead 3x3mm thin profile package. The SW-489 is ideally suited for applications where high power, low control voltage, low insertion loss, high isolation, small size and low cost are required. Typical applications are for GSM and DCS handset systems that connect separate transmit and receive functions to a common antenna, as well as other handset and related applications. This part can be used in all systems operating
up to 2.5 GHz requiring high power at low control voltage.


1 V3 Control 3
2 RF3 RF Port 3
3 GND RF Ground
4 GND RF Ground
5 RF2 RF Port 2
6 V2 Control 2
7 GND RF Ground
8 RF1 RF Port 1
9 V1 Control 1
10 GND RF Ground
11 ANT Antenna Port
12 GND RF Ground
13 GND (paddle) RF Ground



1. Low Voltage Operation 2.5V
2. Low Harmonics > 65 dBc at +34 dBm & 1 GHz
3. Low Insertion Loss 0.5 dB at 1 GHz
4. High Isolation 18.5 dB at 2 GHz
5. Miniature FQFP 12-lead 3x3mm Package
6. 0.5 micron GaAs pHEMT Process



SW-489 Datasheet

SW-489 pdf

KSD301 Datasheet – Bimetal Thermostat Switch

This is Thermostat Switch.

Part Number : KSD301

Description : Ceramic Bimetal Thermostat Switch

Package : Module type

Manufactures : www.sunshinele.com

Image :

KSD301 datasheet image


  1. Electrical Rating :
    (1) 16A 125V AC (Resistive Load)
    (2) 10A 250V AC (Resistive Load)
    (3) 16A 250V AC (Resistive Load)
  2. Operating Temp: 50~ 175℃ (UL.CUL 205℃)
  3. Differential: 10~30K (15K Standard)
  4. Temp. Tolerance: OperatingTemp.  3K 5K
  5. Heat Durability:  220℃ Max. (PPS)
  6. Circuit Resistance: 50mΩ Max.
  7. Insulation Resistance: 100MΩ


KSD301 pinout

Applications : kitchen appliances, heaters and water boiler

KSD301 pdf

KSD301 Datasheet