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Silicon Labs ACA-4HSRPP-2458
- Part No.:
- ACA-4HSRPP-2458
- Manufacturer:
- Silicon Labs
- Category:
- RF Antennas
- Package:
- Datasheet:
-
ACA-4HSRPP-2458.pdf
- Description:
- RF ANT 2.4GHZ/5.8GHZ WHIP TILT
- Quantity:
- Payment:
- Shipping:
Inventory:1,364
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Product details
Overview
ACA-4HSRPP-2458 from ACKme Networks is a 4-inch dual-band 2.4/5 GHz Wi-Fi antenna with hinged SMA reverse polarity plug (RPP) connector, 108.0 mm total height including connector, polyurethane cover, and UL 94V-0 polycarbonate base - deployed in wireless access points and client devices operating in 2400–2500 MHz and 5200–5800 MHz bands.
For engineers reviewing the ACA-4HSRPP-2458 datasheet, ACA-4HSRPP-2458 mechanical dimensions, ACA-4HSRPP-2458 radiation pattern, or ACA-4HSRPP-2458 SMA RPP compatibility, this page delivers verified physical specs, gain performance across E/H planes at 2.45 GHz and 5.8 GHz, VSWR behavior, and mounting-ready form factor details for RF system integration.
Technical Context
The ACA-4HSRPP-2458 is a passive external monopole-style antenna optimized for IEEE 802.11a/b/g/n/ac systems. It operates without bias or active circuitry and relies on impedance-matched 50 Ω feed via its hinged SMA RPP interface.
At 2.45 GHz, it delivers average E-plane gain of –3.6 dB and H-plane gain of +0.3 dB; at 5.8 GHz, average E-plane gain is –2.9 dB while H-plane average gain rises to +3.74 dB - indicating improved azimuthal directivity in the 5 GHz band.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Bands | 2400–2500 MHz and 5200–5800 MHz - covers full 2.4 GHz ISM and UNII-1/2/3 5 GHz Wi-Fi channels |
| Total Height | 108.0 ± 0.50 mm - includes SMA RPP connector; enables compact vertical placement on enclosures or PCB-mount brackets |
| Top/Base Diameter | 7.80 / 9.30 ± 0.25 mm - tapered profile supports mechanical stability and airflow clearance in dense RF assemblies |
| Connector Type | Hinged SMA Reverse Polarity Plug (female center pin) - prevents accidental disconnection and ensures polarization alignment with RPSMA jacks |
| Antenna Cover Material | Polyurethane - provides UV resistance, impact resilience, and consistent dielectric loading across operating bands |
| Base Flammability | UL 94V-0 polycarbonate - meets flame-retardant requirements for enclosed indoor networking equipment |
Availability
ACA-4HSRPP-2458 is available at Aetrix Electronics and suitable for Wi-Fi access points, enterprise client adapters, IoT gateways, and industrial wireless bridges requiring stable component supply and repeatable RF performance.
Supply support for ACA-4HSRPP-2458 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
ACKme Networks was a U.S.-based developer of embedded Wi-Fi modules and reference antennas focused on rapid integration for M2M and IoT applications before discontinuation of operations.
The ACA-4HSRPP-2458 belongs to ACKme's legacy antenna product line designed specifically for drop-in replacement in 2.4/5 GHz dual-band Wi-Fi hardware with minimal RF tuning effort.
FAQ
What is the connector type on the ACA-4HSRPP-2458?
The ACA-4HSRPP-2458 features a hinged SMA Reverse Polarity Plug (RPP) connector with a female center pin. This design prevents misalignment during mating and ensures compatibility with standard RPSMA jacks found on Wi-Fi modules and access points. The hinge allows flexible orientation adjustment during installation without torque stress on the cable or PCB mount.
Does the ACA-4HSRPP-2458 support both 2.4 GHz and 5 GHz Wi-Fi bands simultaneously?
Yes, the ACA-4HSRPP-2458 is a true dual-band antenna covering 2400–2500 MHz and 5200–5800 MHz without retuning. Its impedance and radiation characteristics are validated across both bands per the April 2014 datasheet, enabling single-antenna operation for 802.11n/ac dual-radio systems.
What are the measured gain values for the ACA-4HSRPP-2458 at 2.45 GHz and 5.8 GHz?
Per the official datasheet: at 2.45 GHz, E-plane average gain is –3.6 dB and H-plane average gain is +0.3 dB; at 5.8 GHz, E-plane average gain is –2.9 dB and H-plane average gain is +3.74 dB. These values reflect real-world free-space measurements and inform link budget calculations for both bands.
Is the ACA-4HSRPP-2458 RoHS compliant and certified for commercial use?
The ACA-4HSRPP-2458 datasheet does not list RoHS status or regulatory certifications (FCC/CE). As a passive antenna, it falls outside mandatory certification scope, but final system-level compliance depends on integration into a certified host device. ACKme's documentation confirms UL 94V-0 flammability rating for the base material.
Can the ACA-4HSRPP-2458 be mounted directly to a metal surface?
No - the ACA-4HSRPP-2458 is a monopole antenna requiring a ground plane for proper operation. Mounting directly to large metal surfaces without isolation or ground-plane adaptation will detune resonance and degrade VSWR and gain. Use non-conductive spacers or follow ACKme's recommended mounting height above ground plane per application notes.
ACA-4HSRPP-2458 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Silicon Labs
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- RF Family/Standard:
- WiFi
- Frequency Group:
- UHF (2GHz ~ 3GHz), SHF (f > 4GHz)
- Frequency (Center/Band):
- 2.4GHz, 5.8GHz
- Frequency Range:
- 2.4GHz ~ 2.5GHz, 5.2GHz ~ 5.8GHz
- Antenna Type:
- Whip, Tilt
- Number of Bands:
- 2
- VSWR:
- -
- Return Loss:
- -
- Gain:
- 1dB
- Power - Max:
- -
- Features:
- -
- Termination:
- RP-SMA Female
- Ingress Protection:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Connector Mount
- Height (Max):
- 3.425" (87.00mm)
- Applications:
- Wi-Fi
ACA-4HSRPP-2458 FAQ
1.How can I place an order for ACA-4HSRPP-2458 through Aetrix?
Please submit a Request for Quotation (RFQ) for ACA-4HSRPP-2458 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ACA-4HSRPP-2458 reliable?
The price and inventory of ACA-4HSRPP-2458 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ACA-4HSRPP-2458 is usually 5 days.
3.What payment methods are accepted for ACA-4HSRPP-2458?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ACA-4HSRPP-2458 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ACA-4HSRPP-2458?
ACA-4HSRPP-2458 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ACA-4HSRPP-2458 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ACA-4HSRPP-2458?
For technical support, including ACA-4HSRPP-2458 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ACA-4HSRPP-2458 requirements.
6.How does Aetrix verify that ACA-4HSRPP-2458 is sourced from the original manufacturer or authorized distributors?
All ACA-4HSRPP-2458 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ACA-4HSRPP-2458 meets industry standards.
7.What is the process for return or replacement of ACA-4HSRPP-2458?
All ACA-4HSRPP-2458 units undergo pre-shipment inspection (PSI). If there is an issue with ACA-4HSRPP-2458, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ACA-4HSRPP-2458 part is unused and in its original packaging.
Return procedure for ACA-4HSRPP-2458:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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