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Company History

Company Profile


TEMWELL Corporation History  
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1974 MTI founded as specialized electronic components importer in Semiconductor, RF Transistor, I.C. Diode, SCR, TRAIC, etc. The brand include NEC, Toshiba, Hitachi, JRC, from Japan etc.
1992 Temwell trademark established and formed Engineering Department. Temwell Corporation focuses on development innovation wireless communication RF components of D.B. Mixer (500-2000MHz) and Splitter (700MHz). We have expanded the business into European, American & Asian market.

7H series (7H2/7H3/7H4/7H5) RF Helical Band Pass Filters development completed & started to sell (Fo=44-1500MHz, BW=2-80MHz). We are established RF Band Pass Filter supplier of the world, next TOKO, and the top Helical Band Pass Filter supplier in Taiwan.

Application for CB Radio, RF Transceiver, Radar Radio, Telemetry, Wireless Telecom, Wireless Modem, Broad Band Cable Digital Broadcast, RF Radio, Video Filter, Radio link of all wireless communication systems, etc.

1995 Plan for Ilan factory.

5W series (5W2/5W3/5W4) developed & marketed (Fo=230-2600MHz).


Application for: Satellite IF Converter Filter, Wireless Design House, Microwave Components, 

Optical Network, 2 Way Radio, etc.
ISO9002 Certified.

Ilan factory established, land: 27000 ft2, building: 12960 ft2.


5R series (5R2/5R3/5R4) Helical Band Pass Filters (TOKOs alternative product) developed & sale (Fo=230-1500 MHz).


Application: CB Radio, 2 Way Radio, RF Transceiver, DVBT- Converter, Satellite IF Connector, etc.


7S series (7S2/7S3/7S4) Helical Band Pass Filters developed & marketed (Fo=230-1500MHz).
TM Module Connector B.P. Filters developed & sale (Fo=44-2600 MHz).


Application: Wireless Microphone, Fiber Optic Band Pass Filter.


Miniature Diplexer 7H212/7H313 series developed & marketed (Fo=300-2000MHz).


Application for Wireless Modem, Telemetry, Repeater, Microwave Radio, etc.


30 Watts Duplexer 250/380, 308/344, 450/470MHz developed & sale.


Application: Long distance 2 Way Radio, Radio Broadcast Tx/Rx equipment.


Tunable Filter Kits developed & marketed. (For RF Designers & Students)


Application: Student, R & D engineer, RF design house, etc. 


SGS international authentication: PB Free reported, accordance with RoHS instructions. 

Become the important RF Band Pass Filters supplier of world renowned wireless radio manufactures all over the world, such as TAIT, Kenwood, Maxon, ADI, Senao, M/A Com, Siemens, L3 Communication, Thomas, Andrew, Wi-Lan, Witcom, Tessco, Solectron, Honeywell, WinRadio, etc.


Improves the products operational temperature bearing capacity:

   0J~+60J for Consumer purpose

-30J~+70J/ -30J~+80J for Industrial purpose


Issued 10 Watts Power Diplexer for VHF & UHF

2005 Released 30 Watts Base Station Duplexer Series, including
VHF:138~174 MHz / Spacing 4.6MHz & 6.0MHz
UHF:380~520MHz / Spacing 6.0MHz & 10.0MHz

Finished FCC/PAL channel Band Pass Filter,including
7H2 RF Helical Band Pass Filter
Housing 7H3 RF Helical Filter
2006 Moved to new Head office at 8F-1, NO.51, Sec.1, Minsheng E. Rd., Taipei, Taiwan
& settle Taipei plant

New Issue
Customized Channel Video Series, including
2 way/4 way 50/75[ power splitters
FCC/PAL 4 way/ 6 way channel video combiners

ISO9001:2000 Certified 2008

New Issue:
1.VHF 20 Watts 2 Way Power Diplexer
2.VHF & UHF Power Diplexer
3.TM50 - 50 Watts 50[ Band Pass Filter 100-1100MHz
4.TM50L V 50 Watts 75[ Band Pass Filter 100-1100MHz
5.TM30 V 30 Watts 50[ Band Pass Filter 1300-2600MHz

Our Band Pass Filter develop for engineer of any country FCC/PAL Channel.
there are 4-10 Channel wide for choosing.

2008 Successfully introduced SAP- Enterprise Resource Planning
system which improves customer service and makes enterprise
operation more effectively and efficiently

New Issue:
2way / 4 Way BandPass Antenna Splitter .
There are two types.
One: BandPass Splitter 2-4 Way with the Same Frequency.
Others: BandPass Splitter 2-8 Ways with different Frequency.
2009 New Issue:
1.Temwell Toko Type Helical Filter - 7HT/7HW/5HT/5HW
2.Temwell Website Shop Store 
2010 Successfully Re-new ISO9001:2008 Certified
New open- New York Office in USA

New Issue:
Temwell 7S Series for SMD type requirement

2011 Taipei plant moved to Head office at 6F-2, NO.51, Sec.1, Minsheng E. Rd., Taipei, Taiwan 

New Issue:
Temwell Ham radio standard series 

2012 New Issue:
Temwell New series as RF Component supply source in the world 
2013 New Issue:
Temwell New provide Service: Custom Cavity Fitler with high pass filter, low pass filter, bandpass filter and duplexer.

Temwell New website for Temwell Group Open- http://

New Issue:

Temwell New Supply service: Alternative COIL & Inductor service as obsoleted coil & inductor solution


Successfully Attending Microwave Exhibition: 2015 EUMW in Paris.

Set up Facebook-TEMWELL as Main establishing channel for Helical Bandpass Filter.

New Issue:
Temwell New focus product: SMD Filter Solution, including DR Filter, Ceramic Filter, Saw Filter & LC Filter 


Successfully upgrading ISO9001Certified into 2015 edition.

Successfully Attending Microwave Exhibition: 2016 EUMW in London.
Set up Facebook-TEMSTRON as Main establishing channel for RF & Mircrowave Components.

New Issue:
Temwell New support product: RF Components includes Duplexer, Splitter, Combiner, Attenuator, Isolator, Coupler, Amplifier


Join Worldwide 4th Large Enter Website - Taiwantrade.


Build up new Temwell Filter Shop with online payment 24 hours.


September: Temwell Group successful passes the worldwide verification of Business  

                  Information by Germany TÜV Rheinland Company






The Expert of the RF Band Pass Filter design& manufacturer, RF Diplexer &Duplexer, RF 50 ohm& 75ohm Filter, RF Tunable Filter


Temwell Corporation / Temstron Co., Ltd.

   8F-1,No.51, Sec.1,Min Sheng E. Rd.,Taipei, Taiwan    Tel:886-2-25652500 ( 7 Line )    Fax: 886-2-25515250  /  886-2-25652287    

E-Mail : 

    Copyright © 2009 Temwell Corporation. All rights reserved