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BROADCOM AR18A21E Absolute Encoder

The Broadcom AR18 and AR35 Series are miniature absolute encoders designed for space-constrained industrial applications. These compact surface-mount ASIC encoders feature user-programmable resolutions ranging from 17, 19, to 21 bits for the AR18, and 17 or 21 bits for the AR35, offering high accuracy through patented Reflective Optical Encoding. Suitable for industrial automation, robotics, medical devices, and portable high-precision equipment, they support differential outputs, dual voltage modes of 3.3V and 5V, and operate effectively within -40°C to 115°C, ensuring reliable performance in harsh environments.

Authorized Distributors
Source:Newark
Part No:AR18-A21E
Stock:477
Inv Date:06-01-2026
Price: Unit price: $34.98
Buy/RFQ:
Source:DigiKey
Part No:AR18-A21E
Stock:0
Inv Date:06-01-2026
Price: Unit price: $31.0818
Buy/RFQ:
Part No:AR18-A21E
Stock:0
Inv Date:06-02-2026
Price: Unit price: $27.79
Buy/RFQ:

BROADCOM AR18A21E Absolute Encoder Specifications:

  • Diameter: 18 mm (AR18), 35 mm (AR35)
  • Resolution: 17, 19, 21 bits (AR18), 17 and 21 bits (AR35)
  • Output: Differential ABI and UVW signals
  • Voltage: Dual-mode 3.3V and 5V
  • Temperature Range: -40°C to 115°C
  • Package: Surface mount DFN, 10.9 mm x 9.1 mm x 1.5 mm
  • Frequency: Up to 128 kHz (inc), 15000-30000 rpm shaft speed
  • Communication: SSI 3-Wire, ESL protocols
  • Compliance: RoHS
  • Housing: Miniature, surface mount ASIC
  • Encoder Type: Absolute, single-turn, optical
  • Applications: Robotics, factory automation, medical devices, portable high-precision equipment

Buy the Buy Broadcom AR18A21E Part Number AR18A21E Online

Enhance your industrial automation with the Broadcom AR18A21E absolute encoder. Compact, highly accurate, and programmable with resolutions up to 21 bits, it supports differential outputs and dual voltages of 3.3V and 5V, ensuring reliable operation across -40°C to 115°C in harsh environments. Ideal for robotics, medical devices, and factory automation, this encoder provides high-speed data communication, robust performance, and easy integration through SSI 3-Wire protocol, delivering precision and dependability in space-constrained applications.

Buy Broadcom AR18A21E now and experience unmatched reliability, high-resolution precision, and industrial-grade performance for your automation projects.

Frequently Asked Questions

Where can I buy BROADCOM AR18A21E?

You can click on the BUY or RFQ button to purchase AR18A21E from an authorized BROADCOM distributor.

How do I troubleshoot issues or seek technical support for part AR18A21E?

You can download the AR18A21E datasheet or visit the BROADCOM website for support.

Who is the manufacturer of AR18A21E?

BROADCOM

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