W3112A
RF Antenna, 902 MHz to 928 MHz, Helical, 0.9 dBi, 50 ohm, SMD
- Manufacturer: PULSE ELECTRONICS
- Product type:
- Gain: 0.9dBi
- SVHC: No SVHC (04-Feb-2026)
- VSWR: -
- Input Power: -
- Antenna Type: Helical
- Frequency Max: 928MHz
- Frequency Min: 902MHz
- Product Range: -
- Input Impedance: 50ohm
- Antenna Mounting: SMD
- Antenna Polarisation: -
| Delivery and price | |
|---|---|
| Units per pack | 250 |
| Price | 0.922 € |
| Current stock | 200+ |
| Lead time | 30 days |
W3112A Datasheet version 1.3 ISM 900 MHz Helical SMD-Antenna. (11/07). ## ISM 900MHz Helical SMD-Antenna Ground cleared under antenna, clearance area 6.00 x 11.00 mm. Pulse Part Number: W3112A ## _Features_ - Vertical mount on board - Compact size WxLxH (2.5 x 8 x 8 mm) - Low weight (390 mg) - Lead Free materials - Fully SMD compatible - Glue needed between antenna and PWB - Lead free soldering compatible - Tape and reel packing - RoHS Compliant Product ## _Applications_ - 900MHz ISM Band Systems _Engineering samples available_ ## _Electrical specifications @ +25 °C_ _Note: Electrical characteristics depend on test board (GP) size and antenna positioning on GP and Ground Clearance area size._ ## _ISM 900MHz_ Typical performance (testboard size 100 x 40 mm, PWB ground clearance area 6.00 x 11.00 mm) |Frequency Range|Max Gain|Efficiency|Return loss|Impedance|Operating| |---|---|---|---|---|---| |[MHz]|[dBi]|[%] / [dB]|min. [dB]|[Ω]|Temperature [°C]| |902 – 928|0.9 (peak)|67 / -1.7 (peak)|-10|50|-40 to +85| ||-0.3 (band edges)|50 / -3 (band edges)|||| ## Pulse Finland Oy Takatie 6 90440 Kempele, Finland Tel: +358 207 935 500 Fax: +358 207 935 501 _www.pulseeng.com/antennas_ © 2007. All Rights Reserved. W3112A Datasheet version 1.3 ISM 900 MHz Helical SMD-Antenna. (11/07). ## ISM 900MHz Helical SM ## enna Ground cleared under antenna, clearance area 6.00 x 11.00 mm. Pulse Part Number: W3112A ## _Typical Electrical Characteristics (T=25 °C)_ Typical Return Loss S11/ impedance, measured on the 100 x 40 mm test board with matching circuit Free space efficiency and maximum gain, PWB ground clearance area 6.00 x 11.00 mm Pulse Finland Oy Takatie 6 90440 Kempele, Finland Tel: +358 207 935 500 Fax: +358 207 935 501 _www.pulseeng.com/antennas_ © 2007. All Rights Reserved. W3112A Datasheet version 1.3 ISM 900 MHz Helical SMD-Antenna. (11/07). ## ISM 900MHz Helical SMD-Antenna Ground cleared under antenna, clearance area 6.00 x 11.00 mm. Pulse Part Number: W3112A ## _Typical Free space Radiation Patterns_ **==> picture [297 x 261] intentionally omitted <==** **----- Start of picture text -----**<br> XZ-PLANE ZY-PLANE<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_ © 2007. All Rights Reserved.
Updated at June 9, 2026
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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