W3127.
Antenna, Helical, 433 MHz to 435 MHz, to2.9 dBi,
- Manufacturer: PULSE ELECTRONICS
- Product type: RF Antennas
- Gain: -2.9dBi
- Antenna Type: Helical
- Frequency Max: 435MHz
- Frequency Min: 433MHz
- Input Impedance: 50ohm
| Delivery and price | |
|---|---|
| Units per pack | 1000 |
| Price | 0.778 € |
| Current stock | 1000+ |
| Lead time | 7 days |
W3127 Datasheet version 1.2. ISM 433MHz Helical Antenna. (5/14). ## ISM 433MHz Helical Antenna Ground cleared under antenna, clearance area 8.50x40.00 mm. Pulse Part Number: W3127 ## Features - Plastic supported helical antenna - Size (helix): Length 35.35mm, ø 7mm - Low weight (1.8g) - Mounting on top of the PWB - Through hole mechanical support pegs - Feed contact by soldering via PWB hole - Tray packing - RoHS Compliant Product ## Applications - Remote controls, toys etc. - 433MHz ISM Band Systems ## Electrical specifications @ +25 °C _Note: Electrical characteristics depend on test board (GP) size and antenna positioning on GP and Ground Clearance area size._ ## ISM 433MHz Typical performance (test board size 100x40 mm, PWB ground clearance area 8.50 x40.00 mm), tuning and matching circuit: tuning 12nH series, matching 6.8nH shunt for Pulse standard evaluation board. |Frequency Range|Max Gain|Return loss|Impedance|Operating| |---|---|---|---|---| |[MHz]|[dBi]|min. [dB]|[Ω]|Temperature [°C]| |433 – 435|-2.9|-15|50|-40 to +85| ## Pulse Finland Oy Takatie 6 90440 Kempele, Finland Tel: +358 207 935 500 Fax: +358 207 935 501 _www.pulseeng.com/antennas_ © 2014. All Rights Reserved. W3127 Datasheet version 1.2. ISM 433MHz Helical Antenna. (5/14). ## ISM 433MHz Helical Antenna Ground cleared under antenna, clearance area 8.50x40.00 mm. Pulse Part Number: W3127 ## Terminal Configuration **==> picture [423 x 146] intentionally omitted <==** **----- Start of picture text -----**<br> PWB Layout<br>Ground Clearance Area (8.50 x 40.00 mm) Feed line 50 Ω<br>all metallization should be removed from<br>all PWB layers<br>Feed contact<br>Tuning component<br>(fine tuning)<br>Ground via hole<br>Tuning component<br>(raw tuning)<br>Matching component<br>40 mm<br>100 mm<br>**----- End of picture text -----**<br> Terminal Configuration and Antenna Dimensions **==> picture [449 x 285] intentionally omitted <==** **----- Start of picture text -----**<br> 4.00<br>Helix<br>ø 5.00<br>35.35<br>1 2 Scale 3:1<br>Antenna Features<br>No. Terminal Terminal<br>Name Dimensions<br>1 Feed Wire diameter<br>terminal 0.8mm<br>2 Support Diameter 2.5mm, 4.15 25.00<br>length 2.6mm<br>ø 7.00<br>ø ø<br>2.50 2.50<br>9.60 9.90<br>7.30<br>**----- End of picture text -----**<br> Matching circuit needs to placed on PCB close to antenna feed terminal. Matching component values depend on device construction; size, surrounding mechanics, materials etc.. Pulse Finland Oy Takatie 6 90440 Kempele, Finland Tel: +358 207 935 500 Fax: +358 207 935 501 _www.pulseeng.com/antennas_ © 2014. All Rights Reserved. W3127 Datasheet version 1.2. ISM 433MHz Helical Antenna. (5/14). ## ISM 433MHz Helical Antenna Ground cleared under antenna, clearance area 8.50x40.00 mm. Pulse Part Number: W3127 ## Typical Electrical Characteristics (T=25 °C) **==> picture [485 x 299] intentionally omitted <==** **----- Start of picture text -----**<br> 0 Ω 12 nH<br>Typical Return Loss S11/ impedance, 6.8 nH<br>Measured on the 100x40mm test board with tuning and matching circuit<br>ISM 433MHz CH1Markers ISM 433MHz 1. 54.908 Ω 7.666 Ω 433 MHz<br>3 Jan 2008 14:56:23 1. -21.132 dB 433 MHz 3 Jan 2008 14:56:36 2. 51.811 Ω -777.34 mΩ 471.76 pF<br>2. -32.939 dB 434 MHz 434.000 000 MHz<br>CH1 S11 log MAG 5 dB/REF 0 dB 3. -21.458 dB 435 MHz CH1 S11 1 U FS 3. 46.588 Ω -7.293 Ω 435 MHz<br>PRm PRm<br>Del Del \<br>Cor<br>Cor \ Pad\o---+ >.<br>\ -"\ 7,<br>> \ No 7 \ \ ! nN<br>MD Z| ‘ _ a> \ ‘\<br>\ / // ae \ NO \vot<br>\ /| I 2 n ~e NTN \\<br>P| | | WIA LL Ld : 1\' 3 a 1 \ “7 - “7U0~aLeicsUx?OKYe7 LS 7 7<br>\ oo / / yy<br>ATK \ 7 7 A/ |f ray,4<br>1 3 ae.\, y yon Lp en,-<br>7 / \ ’<br>“ sl \ 7<br>| 7 \ 7-----7)/ a<br>I<br>2<br>CENTER 434.000 000 MHz SPAN 50.000 000 MHz CENTER 434.000 000 MHz SPAN 50.000 000 MHz<br>**----- End of picture text -----**<br> Free space maximum gain, PWB ground clearance area 8.50 x 40.00 mm ## ~~_W31_~~ _27 Max Gain_ **==> picture [196 x 147] intentionally omitted <==** **----- Start of picture text -----**<br> 0.00<br>-1.00<br>-2.00<br>-3.00<br>-4.00<br>-5.00<br>-6.00<br>-7.00<br>428 430 432 434 436 438 440<br>Freq [MHz]<br>—e— Max Gain [dBi]<br>Max Gain [dBi]<br>**----- End of picture text -----**<br> Pulse Finland Oy Takatie 6 90440 Kempele, Finland Tel: +358 207 935 500 Fax: +358 207 935 501 _www.pulseeng.com/antennas_ © 2014. All Rights Reserved. W3127 Datasheet version 1.2. ISM 433MHz Helical Antenna. (5/14). ## ISM 433MHz Helical Antenna Ground cleared under antenna, clearance area 8.50x40.00 mm. Pulse Part Number: W3127 ## Typical Free space Radiation Patterns **==> picture [296 x 261] intentionally omitted <==** **----- Start of picture text -----**<br> XZ-PLANE ZY-PLANE<br>—+%4.00(MHz) oes<br>ae<br>_ |: Pk: OFSff i a apeo? NO \ \<br>180deg<br>XY-PLANE<br>**----- End of picture text -----**<br> Pulse Finland Oy Takatie 6 90440 Kempele, Finland Tel: +358 207 935 500 Fax: +358 207 935 501 _www.pulseeng.com/antennas_ © 2014. All Rights Reserved.
Updated at February 9, 2023
Pulse Electronics, a YAGEO company, is a global leader in the design and manufacturing of passive electronic components. With a legacy of innovation dating back to 1956, the company provides essential technology for the communications, computing, industrial, transportation, and IoT sectors. Pulse is recognized worldwide for delivering high-performance solutions that power advanced applications, ranging from 5G networks and electric vehicles to data centers and smart grids. The company's extensive product portfolio is heavily anchored in power and networking magnetics. This includes a comprehensive range of power inductors engineered for exceptional efficiency and reliability in demanding environments. To address complex electromagnetic compatibility challenges, Pulse also manufactures highly effective EMC and RFI suppression solutions, such as common mode chokes and filters, alongside specialized toroidal and RF inductors designed to ensure clean power delivery and optimal signal integrity. Beyond traditional magnetics, Pulse excels in the development of advanced wireless and power conversion components. Their connectivity solutions feature a wide array of high-performance RF antennas and single-band chip antennas tailored for modern connected devices. Furthermore, to support sophisticated power architectures, Pulse provides a broad spectrum of transformers—encompassing PCB-mounted designs, current sensing transformers, and precise pulse transformers—equipping engineers with robust, industry-proven components for power isolation and measurement.
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