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PRO-OB-471
RF Antenna, 2.4 GHz - 2.5 GHz, 3.8 dBi, Mixed Linear, SMD
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- Manufacturer: ABRACON
- Product type:
- Gain: 3.8dBi
- SVHC: No SVHC (04-Feb-2026)
- VSWR: -
- Input Power: -
- Antenna Type: -
- Frequency Max: 2.5GHz
- Frequency Min: 2.4GHz
- Product Range: -
- Input Impedance: 50ohm
- Antenna Mounting: SMD
- Antenna Polarisation: Mixed Linear
| Delivery and price | |
|---|---|
| Units per pack | 250 |
| Price | 2.59 € |
| Current stock | 200+ |
| Lead time | 30 days |
Datasheet
## **OnBoard 868/915/868+2400 MHz - Antenna** ## **PRO-OB-471** Request Samples **34.00 x 11.53 x 4.93 mm** Check Inventory **RoHS/RoHS II Compliant MSL Level = 1** ## **Features** ## **Applications** - Supports 868, 915 or 868+2400 MHz - Profile of 4.93 mm - Mixed Linear Polarization - Surface Mount - Durable-Shelf life of upto 10 years - Three different evaluation boards available: - “SMD 868” for 860-870 MHz - “SMD 915” for 902-928 MHz - “SMD 868+2400” for 860-870 + 2400-2500 MHz - Wi-Fi/BT/LPWA/LoRA/SigFox/ISM - IoT, M2M - Industrial - Infrastructure - Medical - Remote Technology / Monitoring - Network devices - Consumer Tracking - Smart Metering ## **Product Image** 5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** ISO9001-2015 For terms and conditions of sales, please visit: CERTIFIED www.abracon.com ## **OnBoard 868/915/868+2400 MHz - Antenna** ## **PRO-OB-471** **34.00 x 11.53 x 4.93 mm** Request Samples Check Inventory **RoHS/RoHS II Compliant MSL Level = 1** ## **Electrical Specification** |**Parameter**|**Specification **|**Specification **|**Specification **|**Specification **|**Unit**| |---|---|---|---|---|---| ||**“SMD 868”**|**“SMD 915”**|**“SMD 868+2400”**||| |OperatingFrequency|860 - 870|902 - 928|860 - 870|2400 - 2500|MHz| |Center Frequency|865|915|865|2450|| |Return Loss|˂ -9.9|˂ -6.6|< -8.3|< -4.3 dB|dB| |Polarization|Mixed Linear||||| |Peak Gain|1.7|2.4|1|3.8|dBi| |Efficiency|> 63|> 50|> 49|> 43|%| |Impedance|50||||Ω| _Note: All measurements were conducted on its evaluation board in free space. Performance will vary depending on the ground plane, application, and environment._ ## **Mechanical Specification** |**Parameter**|**Specification**| |---|---| |Antenna Dimension|34.00 x 11.53 x 4.93 mm| |Evaluation board Dimension “SMD 868”|120 x 50 mm| |Evaluation board Dimension “SMD 915”|120 x 50 mm| |Evaluation board Dimension “SMD 868+2400”|95 x 38 mm| |MountingType|Surface Mount| ## **Environmental Specification** |**Parameter**|**Specification**| |---|---| |OperatingTemperature|-40°C to +125°C| |Storage Temperature|| |Maximum Temperature|400°C| |RoHS Compliance|Yes<br>Compliant with EU directive 2011/65/EU and 2015/863| |Shelf life|10years| |MSL|Level 1,unlimited| |Mechanical resistance|Immunity to vibrations IEC/EN 60068-2-6, Fc test<br>Immunity to shock IEC/EN 60068-2-27, Ea test| 5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** ISO9001-2015 For terms and conditions of sales, please visit: CERTIFIED www.abracon.com ## **OnBoard 868/915/868+2400 MHz - Antenna** **PRO-OB-471** Po Request Samples **34.00 x 11.53 x 4.93 mm** Check Inventory **RoHS/RoHS II Compliant MSL Level = 1** ## **Product Dimension** Unit : mm ## **Antenna pins and keep-out block** Unit : mm 5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** ISO9001-2015 For terms and conditions of sales, please visit: CERTIFIED www.abracon.com | | ## **OnBoard 868/915/868+2400 MHz - Antenna** ## **PRO-OB-471** Es **PCB layout and antenna pin numbering** Request Samples Check Inventory **34.00 x 11.53 x 4.93 mm RoHS/RoHS II Compliant MSL Level = 1** The antenna uses PIFA technology and should thus be mounted on a ground plane. If there are several layers in the PCB, there is an advantage to add vias for smooth interconnection of the ground areas to avoid splits in the ground plane. It is also important that there is a ground clearance around the NC pads and the RF feed pad, through all layers of the PCB. It is recommended to implement a matching network to optimize the antenna impedance in your application. The components can be positioned under the antenna. See recommendations in the figures below. _Pin configuration PCB Layout (from evaluation board)_ _Clearance through all layers_ Unit: mm 5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** ISO9001-2015 For terms and conditions of sales, please visit: CERTIFIED www.abracon.com | | ## **OnBoard 868/915/868+2400 MHz - Antenna** ## **PRO-OB-471** **34.00 x 11.53 x 4.93 mm** Request Samples Check Inventory **RoHS/RoHS II Compliant MSL Level = 1** ## **Measurement Setup** The antenna measurements for 868 MHz were done with the OnBoard “SMD 868” evaluation board (PRO-EB-472, 120 x 50 mm) - measured in free space. The antenna measurements for 915 MHz were done with the OnBoard “ SMD 915” evaluation board (PRO-EB-476, 120 x 50 mm) - measured in free space. The antenna measurements for 868+2400 MHz were done with the OnBoard “SMD 868+2400” evaluation board (PRO-EB-531, 95 x 38 mm) - measured in free space. 5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** For terms and conditions of sales, please visit: www.abracon.com ABRACON IS ISO9001-2015 CERTIFIED ## **OnBoard 868/915/868+2400 MHz - Antenna** ## **PRO-OB-471** Po **Reflection Characteristics “SMD 868” – Return Loss** Request Samples Check Inventory **34.00 x 11.53 x 4.93 mm RoHS/RoHS II Compliant MSL Level = 1** ## **Total Radiation Efficiency “SMD 868”** ## **Maximum Radiation Gain “SMD 868”** 5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** For terms and conditions of sales, please visit: www.abracon.com ABRACON IS ISO9001-2015 CERTIFIED ## **OnBoard 868/915/868+2400 MHz - Antenna** ## **PRO-OB-471** eee **Reflection Characteristics “SMD 915” – Return Loss** Request Samples Check Inventory **34.00 x 11.53 x 4.93 mm RoHS/RoHS II Compliant MSL Level = 1** ## **Total Radiation Efficiency “SMD 915”** ## **Maximum Radiation Gain “SMD 915”** 5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** For terms and conditions of sales, please visit: www.abracon.com ABRACON IS ISO9001-2015 CERTIFIED ## **OnBoard 868/915/868+2400 MHz - Antenna** ## **PRO-OB-471** eee **34.00 x 11.53 x 4.93 mm** Request Samples Check Inventory **RoHS/RoHS II Compliant MSL Level = 1** ## **Reflection Characteristics “SMD 868+2400” – Return Loss** ## **Total Radiation Efficiency “SMD 868+2400”** ## **Maximum Radiation Gain “SMD 868+2400”** 5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** ISO9001-2015 For terms and conditions of sales, please visit: CERTIFIED www.abracon.com ## **OnBoard 868/915/868+2400 MHz - Antenna** ## **PRO-OB-471** eee Request Samples Check Inventory **34.00 x 11.53 x 4.93 mm RoHS/RoHS II Compliant MSL Level = 1** ## **Radiation Characteristics – 2D Pattern “SMD 868” at 868 MHz** _VP: Vertical Polarization HP: Horisontal Polarization_ 5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** For terms and conditions of sales, please visit: www.abracon.com _Unit: dBi_ ABRACON IS ISO9001-2015 CERTIFIED **OnBoard 868/915/868+2400 MHz - Antenna** ## **PRO-OB-471** Request Samples Check Inventory **34.00 x 11.53 x 4.93 mm RoHS/RoHS II Compliant MSL Level = 1** ## **Radiation Characteristics – 2D Pattern “SMD 915” at 915 MHz** _VP: Vertical Polarization HP: Horisontal Polarization_ _Unit: dBi_ ABRACON IS ISO9001-2015 CERTIFIED 5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** For terms and conditions of sales, please visit: www.abracon.com **OnBoard 868/915/868+2400 MHz - Antenna** ## **PRO-OB-471** Request Samples **34.00 x 11.53 x 4.93 mm** Check Inventory **RoHS/RoHS II Compliant MSL Level = 1** ## **Radiation Characteristics – 2D Pattern “SMD 868+2400” at 868 MHz** _VP: Vertical Polarization HP: Horisontal Polarization_ _Unit: dBi_ **==> picture [45 x 27] intentionally omitted <==** **----- Start of picture text -----**<br> ABRACON IS<br>ISO9001-2015<br>CERTIFIED<br>**----- End of picture text -----**<br> 5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** For terms and conditions of sales, please visit: www.abracon.com **OnBoard 868/915/868+2400 MHz - Antenna** ## **PRO-OB-471** oe **34.00 x 11.53 x 4.93 mm** Check Inventory **RoHS/RoHS II Compliant MSL Level = 1** Request Samples ## **Radiation Characteristics – 2D Pattern “SMD 868+2400” at 2400 MHz** ## _VP: Vertical Polarization HP: Horisontal Polarization_ _Unit: dBi_ 5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** For terms and conditions of sales, please visit: www.abracon.com ABRACON IS ISO9001-2015 CERTIFIED ## **OnBoard 868/915/868+2400 MHz - Antenna** ## **PRO-OB-471** Request Samples Check Inventory **34.00 x 11.53 x 4.93 mm RoHS/RoHS II Compliant MSL Level = 1** ## **Radiation Characteristics – 2D Pattern “SMD 868+2400” at 2500 MHz** _VP: Vertical Polarization HP: Horisontal Polarization_ 5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** For terms and conditions of sales, please visit: www.abracon.com _Unit: dBi_ **==> picture [45 x 27] intentionally omitted <==** **----- Start of picture text -----**<br> ABRACON IS<br>ISO9001-2015<br>CERTIFIED<br>**----- End of picture text -----**<br> ## **OnBoard 868/915/868+2400 MHz - Antenna** ## **PRO-OB-471** Request Samples Check Inventory **34.00 x 11.53 x 4.93 mm RoHS/RoHS II Compliant MSL Level = 1** ## **Evaluation Board Outline & Matching Circuit (“SMD 868” or “SMD 915”)** The evaluation board is developed to simplify antenna (PRO-OB-471) testing and evaluation. It has an arbitrary size of 120 x 50 mm and includes an SMA connector. The purpose is to give a reference design for an optimal antenna implementation. The evaluation board can also be used to test other implementations by cutting and soldering the PCB into any device. For this antenna the evaluation board is available with three different tuning options, two of which is: 1. Evaluation board “SMD 868” (PRO-EB-472) for 860-870 MHz operation 2. Evaluation board “SMD 915” (PRO-EB-476) for 902-928 MHz operation. ## _Evaluation board outline_ The evaluation board has a matching circuit implemented next to the antenna. This is aimed to enable optimization possibilities for the user. The component positions are sized for 0402 (1005 metric) SMD components. **==> picture [444 x 101] intentionally omitted <==** **----- Start of picture text -----**<br> Antenna feed<br>C6<br>C5 C5<br>Transmission line C4<br>C4 C6<br>M atching circuit<br>**----- End of picture text -----**<br> The antenna needs a matching circuit to adjust the resonant frequency balance. When delivered, the evaluation board is tuned for optimum balance for 868 MHz or 915 MHz using the following (can be replaced by equivalent): |**Component**|**“SMD 868”(PRO-EB-472)**|**“SMD 915”(PRO-EB-476)**| |---|---|---| |C4|N/A|N/A| |C5|5.6pF(Murata GJM1555C1H5R6WB01)|1.5 nH(Murata LQW15AN1N5B00)| |C6|2.2pF(Murata GJM1555C1H2R2WB01)|5.6pF(Murata GJM1555C1H5R6WB01)| However, it is common that the resonant frequency will shift during implementation in an arbitrary device. Therefore, this matching may be changed with other values/components/brands for compensation of such effects. This is further described in General Implementation Guidelines section below. 5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** For terms and conditions of sales, please visit: www.abracon.com ABRACON IS ISO9001-2015 CERTIFIED ## **OnBoard 868/915/868+2400 MHz - Antenna** ## **PRO-OB-471** Request Samples Check Inventory **34.00 x 11.53 x 4.93 mm RoHS/RoHS II Compliant MSL Level = 1** ## **Evaluation Board Outline & Matching Circuit (“SMD 868+2400”)** The evaluation board is developed to simplify antenna (PRO-OB-471) testing and evaluation. It has an arbitrary size of 120 x 50 mm and includes an SMA connector. The purpose is to give a reference design for an optimal antenna implementation. The evaluation board can also be used to test other implementations by cutting and soldering the PCB into any device. For this antenna the evaluation board is available with three different tuning options, the third one is: 3. Evaluation board “SMD 868+2400” (PRO-EB-531) for 860 - 870 MHz and 2.4 - 2.5 GHz operation. ## _Evaluation board outline_ The evaluation board has a matching circuit implemented next to the antenna. This is aimed to enable optimization possibilities for the user. The component positions are sized for 0402 (1005 metric) SMD components. **==> picture [488 x 230] intentionally omitted <==** **----- Start of picture text -----**<br> C7<br>C5<br>Antenna feed<br>C5 C7 C4 C6<br>Transmission line<br>C4 C6<br>t 2<br>—_ —_t La onl<br>M atching circuit<br>The antenna needs a matching circuit to adjust the resonant frequency balance. When delivered, the evaluation board<br>is tuned for optimum balance for 868 MHz and 2400 MHz using the following (can be replaced by equivalent):<br>Component “SMD 868+2400” (PRO-EB-531)<br>C4 0.6 pF (Murata GJM1555C1HR60WB01)<br>C5 2.2 pF (Murata GJM1555C1H2R2WB01)<br>C6 0.7 pF (Murata GJM1555C1HR70WB01)<br>C7 0 Ω<br>**----- End of picture text -----**<br> The antenna needs a matching circuit to adjust the resonant frequency balance. When delivered, the evaluation board is tuned for optimum balance for 868 MHz and 2400 MHz using the following (can be replaced by equivalent): However, it is common that the resonant frequency will shift during implementation in an arbitrary device. Therefore, this matching may be changed with other values/components/brands for compensation of such effects. This is further described in General Implementation Guidelines section below. 5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** ISO9001-2015 For terms and conditions of sales, please visit: CERTIFIED www.abracon.com | | ## **OnBoard 868/915/868+2400 MHz - Antenna** ## **PRO-OB-471** ee Request Samples Check Inventory **34.00 x 11.53 x 4.93 mm RoHS/RoHS II Compliant MSL Level = 1** ## **General Implementation Guidelines** The antenna can be positioned in different ways, although there are some positions which are more beneficial. Below picture shows a typical PCB with examples on different antenna positions. The optimal position is option 1 or 4. **==> picture [333 x 137] intentionally omitted <==** **----- Start of picture text -----**<br> 1 4<br>Optimal 1 & 4<br>3<br>6<br>2 5<br>2 & 5<br>3 6<br>**----- End of picture text -----**<br> ## _= GND pin(s)_ The antenna should be aligned with the PCB edge if possible, preferably with the GND pin(s) close to a corner. The antenna enables that small electrical components are mounted inside the antenna keep-out block. This is a spaceefficient solution which has very little influence on the performance. It may have an impact on the antenna tuning, but is fully possible if there is limited space on the PCB. Another general aspect on surface mounted antennas is regarding the PCB population. If other electrical components are positioned in the surrounding area of the antenna, some impact on the antenna tuning and radiated performance may be expected. It is recommended that such components are distributed below a topographical slope that starts on PCB level at the antenna keep-out block, and slowly increases the height. It shall also be highlighted that plastic and metal parts in the near proximity of antennas may influence the antenna tuning and/or performance. This aspect should be noted as a general guideline for all antennas. The effects are difficult to estimate without detailed information, but it is common that a plastic housing above the antenna shifts the resonant frequency down. It is recommended to measure the antenna in the actual device after implementation. 5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** ISO9001-2015 For terms and conditions of sales, please visit: CERTIFIED www.abracon.com ## **OnBoard 868/915/868+2400 MHz - Antenna** ## **PRO-OB-471** Po **Packaging** **34.00 x 11.53 x 4.93 mm** Request Samples Check Inventory **RoHS/RoHS II Compliant MSL Level = 1** The antenna is delivered on tape and reel according to following specifications. The quantity per 13” reel is 250 pcs. - 10 sprocket hole pitch cumulative tolerance ±0.2 - Camber not to exceed 1mm in 100m - A0 and B0 measured on a plane 0.35mm above the bottom of the pocket - K0 measured from a plane on the inside bottom of the Pocket to the top surface of the carrier - Pocket position relative to sprocket hole measured as true position of pocket, not pocket hole - Component load per 13” reel: 250 pcs _Unit: mm (unless otherwise noted)_ 5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** ISO9001-2015 For terms and conditions of sales, please visit: CERTIFIED www.abracon.com [| ## **OnBoard 868/915/868+2400 MHz - Antenna** ## **PRO-OB-471** Request Samples CO **Part Marking** **34.00 x 11.53 x 4.93 mm** Check Inventory **RoHS/RoHS II Compliant MSL Level = 1** The top marking of the antenna is arranged according to the following illustration. ## **Ordering Information** |**Part number**|**Part name**|**Details**| |---|---|---| |PRO-OB-471|OnBoard SMD<br>868/915 or 868+2400 MHz|Antenna for 860-870 MHz, 902-928 MHz or 868+2400<br>MHz operation| |PRO-EB-472|Evaluation board,<br>Onboard“SMD 868”|Evaluation board with PRO-OB-471, operation in<br>860-870 MHz| |PRO-EB-476|Evaluation board,<br>Onboard“SMD 915”|Evaluation board with PRO-OB-471, operation in<br>902-928 MHz| |PRO-EB-531|Evaluation board,<br>Onboard“SMD868+2400”|Evaluation board with PRO-OB-471, operation in<br>860-870MHzand2.4 - 2.5 GHz| ATTENTION: Abracon LLC’s products are COTS – Commercial-Off-The-Shelf products; suitable for Commercial, Industrial and, where designated, Automotive Applications. Abracon’s products are not specifically designed for Military, Aviation, Aerospace, Life-dependent Medical applications or any application requiring high reliability where component failure could result in loss of life and/or property. For applications requiring high reliability and/or presenting an extreme operating environment, written consent and authorization from Abracon LLC is required. Please contact Abracon LLC for more information. 5101 Hidden Creek Ln Spicewood TX 78669 ABRACON IS Phone: 512-371-6159 | Fax: 512-351-8858 **REVISED:** ISO9001-2015 For terms and conditions of sales, please visit: CERTIFIED www.abracon.com ~~=~~
Updated at June 9, 2026
Abracon is an industry-leading manufacturer of passive components, specializing in frequency control, timing devices, RF and antenna solutions, and inductor technology. Through a commitment to quality and technical innovation, the company enables advanced IoT, data communication, industrial, medical, and aerospace applications. Abracon also powers a portfolio of trusted industry brands, including Ecliptek, Fox, ILSI, and ProAnt, delivering comprehensive solutions for modern engineering challenges. Globally recognized for its world-class frequency control devices, Abracon offers a vast selection of quartz crystals and standard oscillators engineered to provide exceptional stability and precision for critical circuitry. The comprehensive timing range also encompasses advanced MEMS oscillators, temperature-compensated (TCXO) and voltage-controlled (VC-TCXO) variants, alongside highly reliable resonators. Beyond timing components, Abracon excels in power management and connectivity. The company's magnetic and RF offerings include a substantial array of high-efficiency power inductors, specialized toroidal coils, and charging coils. To support seamless wireless communication and maintain signal integrity, Abracon provides a robust selection of RF antennas, single-band chip antennas, and common mode chokes designed for effective EMC and RFI suppression.
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