Broadcom Limited AFBR-S10TR001Z

Overview

AFBR-S10TR001Z from Broadcom (formerly Avago Technologies) is a compact 650 nm analog optical transceiver for arc flash detection over 1 mm Plastic Optical Fiber (POF), integrating a 650 nm LED transmitter and a photodiode + TIA receiver in one package, operating from -40°C to +85°C with RoHS compliance and Versatile-Link duplex connector.

For engineers reviewing the AFBR-S10TR001Z datasheet, pinout, applications, or equivalent options, key selection considerations include its analog output voltage linearity vs. optical input power (-35 dBm to 0 dBm), 75 V/µs slew rate, 40 ns pulse rise time, ESD robustness (2 kV HBM), and compatibility with simplex Versatile-Link connectors in safety-critical POF sensing systems.

Technical Context

The transmitter uses a directly current-driven 650 nm LED with peak emission between 630–685 nm and spectral width ≤30 nm, delivering up to 2 dBm optical power into 1 mm POF at 30 mA DC drive. Its optical rise/fall times are each ≤100 ns under simple driver conditions.

The receiver integrates a PIN photodiode and linear transimpedance amplifier (TIA) in a single ASIC, producing an analog output voltage proportional to incident optical power across 300–1100 nm range, with responsivity of 30–70 V/mW at 650 nm, 40 ns rise/60 ns fall time, and ±0.5 µs pulse width distortion in linear operation.

Key Specifications

Pinout & Package

The AFBR-S10TR001Z uses a custom surface-mount housing with 8 signal pins, 4 isolated EMI shield solder posts, and 2 un-plated mounting posts. Dimensions: 21.45 × 12.6 × 7.35 mm (L×W×H). Shield posts connect to chassis ground; mounting posts provide mechanical retention.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar optical transceiver applications.

Compared with AFBR-S10TR001Z, AFBR-S11TR001Z offers identical form, fit, and function with higher optical output margin, while HFD2010 requires full optical subsystem engineering but provides greater flexibility in wavelength and gain tuning.

Availability

AFBR-S10TR001Z is available at Aetrix Electronics and suitable for arc flash detection, switchgear monitoring, and transformer protection requiring stable component supply, long-term lifecycle support, and RoHS-compliant optical sensing solutions.

Supply support for AFBR-S10TR001Z 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

Broadcom Inc. (formerly Avago Technologies) is a global semiconductor leader specializing in wired and wireless communications, enterprise storage, and industrial optoelectronics.

The AFBR-S10TR001Z belongs to Broadcom's Versatile-Link optical transceiver product line, engineered specifically for safety-critical, high-reliability POF-based sensing in electrical utility and industrial power systems.

FAQ

What is the maximum optical input power the AFBR-S10TR001Z receiver can handle without saturation?

The AFBR-S10TR001Z receiver operates linearly up to approximately 0 dBm optical input power, beyond which overdrive effects occur. Pulse width distortion exceeds ±0.5 µs above -10 dBm, and maximum output voltage is capped at 4 V. For sustained linear operation, optical input should be kept ≤ -5 dBm; the device tolerates short pulses up to 0 dBm with measurable but bounded distortion. Always refer to Figure 7 and Figure 8 in the AFBR-S10TR001Z datasheet for logarithmic and linear transfer curves.

Can the AFBR-S10TR001Z be used with multimode glass fiber instead of POF?

No-the AFBR-S10TR001Z is optically optimized for 1 mm Plastic Optical Fiber (POF) with numerical aperture 0.5. Its LED emitter and receiver lensing are designed for large-core, low-cost POF coupling; using it with 50/125 µm or 62.5/125 µm glass fiber results in >20 dB coupling loss and unreliable signal levels. The AFBR-S10TR001Z datasheet explicitly specifies POF compatibility and does not characterize performance with glass fiber.

Does the AFBR-S10TR001Z require external components for basic operation?

Yes-the AFBR-S10TR001Z requires at minimum: (1) a current-limiting resistor (e.g., 560 Ω) on LED_A to set drive current, (2) 10 µF + 100 nF bypass capacitors on VCC, and (3) proper grounding of both GND pins and shield posts to chassis. Figure 4 in the AFBR-S10TR001Z datasheet shows the recommended application circuit. No external amplification is needed for the VOUT signal within its specified load and voltage range.

Is the AFBR-S10TR001Z compliant with IEC 61000-4-3 for radiated immunity?

Yes-the AFBR-S10TR001Z has been tested per IEC 61000-4-3 and demonstrates no measurable functional degradation when exposed to a 15 V/m radiated field swept from 8 MHz to 1 GHz, provided it is mounted on a circuit board without a chassis enclosure. This immunity level is documented in the Regulatory Compliance Table of the AFBR-S10TR001Z datasheet and supports deployment in electrically noisy substations and industrial control panels.

How is the AFBR-S10TR001Z's self-test capability implemented?

The AFBR-S10TR001Z implements self-test via its integrated LED: driving LED_A/LED_C with appropriate current illuminates the internal optical path, allowing the receiver section to generate a known VOUT voltage. This verifies end-to-end functionality-including fiber continuity, connector mating, and analog signal chain integrity-without external equipment. The test is performed at system power-up or on-demand, and the resulting voltage is compared against expected range (e.g., ~2.5 V at 30 mA drive) to confirm health of the AFBR-S10TR001Z optical link.