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Broadcom Limited HFBR-3810MSZ
- Part No.:
- HFBR-3810MSZ
- Manufacturer:
- Broadcom Limited
- Category:
- Fiber Optic Transceiver Modules
- Package:
- Datasheet:
-
HFBR-3810MSZ.pdf
- Description:
- TXRX FIBER OPTIC 650NM 10MBAUD
- Quantity:
- Payment:
- Shipping:
Inventory:1,056
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Product details
Overview
HFBR-3810MSZ from Broadcom is a 650 nm fiber-optic link transceiver pair with integrated transmitter and receiver, supporting DC to 10 MBaud NRZ signaling, 12 kV transient voltage suppression per IEC 60664-1, and RoHS-compliant construction for galvanic isolation in industrial drives and inverters.
For engineers reviewing the HFBR-3810MSZ datasheet, pinout, applications, or equivalent options, key selection criteria include its 20.1 mm creepage, 25.1 mm clearance, 5 V CMOS/TTL output compatibility, –40°C to +85°C operating range, and mandatory drive circuit requirements.
Technical Context
This device implements a bidirectional optically isolated data link using a red LED transmitter and photodiode-based receiver with DC-coupled CMOS/TTL output stage - eliminating need for external encoding or digitizing circuitry. It delivers deterministic propagation delay (95 ns typical) and low pulse width variation (80–120 ns at 10 MBaud).
Designed for high-noise environments, it achieves 0.1–0.4 Vpp power supply noise immunity across DC–10 MHz and meets laser Class 1 safety per IEC 60825:2001 Amendment. Its internal air-gap insulation structure satisfies Overvoltage Category IV per IEC 60664-1 at up to 2000 m altitude.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Signaling Rate | DC to 10 MBaud NRZ - supports real-time control loop timing without data encoding overhead |
| Clearance / Creepage | 25.1 mm / 23.1 mm - enables use in Overvoltage Category IV systems up to 1000 Veff |
| Operating Temperature | –40°C to +85°C - qualified for industrial motor drive and inverter ambient conditions |
| Output Logic Compatibility | CMOS/TTL - directly interfaces with standard microcontrollers and FPGA I/O without level-shifting |
| Transient Voltage Suppression | 12 kV impulse rating - provides robust protection against ESD and switching surges in isolated gate drive paths |
| Propagation Delay | 95 ns typical - ensures predictable timing for closed-loop feedback in servo and PWM systems |
Pinout & Package
HFBR-3810MSZ uses a 11-pin DIP package with shielded ground pins (9–11), optimized for high-voltage isolation. Pin 1 is transmitter anode; pins 5, 7, and 9–11 are ground; pin 6 supplies 5 V to receiver; pin 8 delivers CMOS/TTL data output.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Transmitter Anode | Drives red LED; requires current-limiting resistor per recommended drive circuit |
| 2 | Transmitter Cathode | Return path for LED forward current; connects to ground via R1/R2 network |
| 3, 4 | Transmitter Ground | Dedicated low-noise return for transmitter section; isolates from receiver ground plane |
| 5, 7 | Receiver Ground | Reference for CMOS/TTL output and VCC decoupling; separate from Tx ground |
| 6 | Receiver VCC | 5 V supply input; must be filtered with C3 (0.1 µF) per datasheet layout guidance |
| 8 | Data Output | Active-high CMOS/TTL signal; drives 10 pF load with 10–20 ns rise/fall times |
| 9–11 | Shield Ground | Provides EMI shielding and enhanced creepage; required for HFBR-3810MSZ variant only |
Key Features
| Feature | Design Value |
|---|---|
| DC-coupled receiver output | Eliminates need for AC coupling capacitors or clock/data recovery circuits in PLC and motion controller designs |
| 12 kV transient suppression | Meets IEC 60664-1 requirements for Category IV installations without external TVS diodes |
| Laser Class 1 compliance | Enables safe integration into user-accessible equipment without optical safety interlocks |
| High noise immunity (0.1–0.4 Vpp) | Ensures reliable operation in proximity to IGBT gate drivers and high-dV/dt power stages |
Applications
| Industrial Motor Drives | Inverter Gate Drive Isolation |
|---|---|
Use Scenario: Isolating PWM signals between DSP/FPGA controller and IGBT gate driver stage in variable-frequency drives. IC Role / Device Role / Timing Role: Bidirectional optically isolated data link providing timing-critical gate enable/disable signals with <100 ns propagation delay. Use Value: Prevents ground loop currents and common-mode transients from disrupting control logic while maintaining tight timing integrity at 10 MBaud. | Use Scenario: Transmitting fault feedback (e.g., DESAT, overtemperature) from power module back to controller across isolation barrier. IC Role / Device Role / Timing Role: Unidirectional receiver-side signal path delivering fast-acting protection signals with minimal latency. Use Value: Enables sub-microsecond fault response time critical for IGBT short-circuit protection without compromising isolation integrity. |
| Programmable Logic Controllers | Renewable Energy Inverters |
Use Scenario: Isolating digital I/O modules handling 24 V DC field signals in harsh factory environments. IC Role / Device Role / Timing Role: Galvanic isolation interface between microcontroller bus and industrial field-side peripherals. Use Value: Provides certified 23.1 mm creepage and 25.1 mm clearance meeting IEC 61000-4-5 surge immunity requirements for PLC backplanes. | Use Scenario: Interfacing string-level monitoring units with central inverter controller in solar PV systems. IC Role / Device Role / Timing Role: High-reliability data link for telemetry and command transmission across isolation boundary in outdoor-rated enclosures. Use Value: Supports long-term operation at +85°C ambient and withstands 12 kV lightning-induced surges on DC-side communication lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fiber-optic isolation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HFBR-3810Z | 28.7 mm creepage, 25.1 mm clearance, rated for 3000 m altitude; lacks shield pins 9–11 | Suitable for higher-altitude deployments but offers no EMI shielding; footprint differs in ground pin count | Select HFBR-3810Z only when altitude >2000 m is required and EMI shielding is unnecessary |
| ACPL-M61T | 5 MBaud max rate, 3.3 V/5 V dual-supply option, 3750 VRMS isolation, no mandatory external drive circuit | Better suited for lower-speed, low-power MCU-to-peripheral links; not rated for Category IV transient suppression | Choose ACPL-M61T for cost-sensitive, space-constrained designs where 10 MBaud and 12 kV immunity are not required |
Compared with HFBR-3810Z and ACPL-M61T, HFBR-3810MSZ uniquely combines 10 MBaud speed, 12 kV transient rating, and shielded ground pins - making it the only option among the three qualified for Category IV industrial inverters requiring EMI-hardened isolation at full signaling rate.
Availability
HFBR-3810MSZ is available at Aetrix Electronics and suitable for industrial motor drives, renewable energy inverters, and programmable logic controllers requiring stable component supply under extended temperature and high-surge conditions.
Supply support for HFBR-3810MSZ 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. is a global semiconductor leader specializing in infrastructure software, networking, and optical connectivity solutions with broad industrial and enterprise design-in presence.
The HFBR-3810MSZ belongs to Broadcom's legacy Avago fiber-optic link product line, engineered specifically for high-reliability galvanic isolation in industrial power electronics where timing precision, surge immunity, and long-term stability are critical.
FAQ
What is the maximum signaling rate supported by HFBR-3810MSZ?
The HFBR-3810MSZ supports a maximum signaling rate of 10 MBaud using NRZ encoding. This is confirmed in the AV02-2510EN datasheet under Specified Link Performance, with pulse width variation specified at 80–120 ns and propagation delay at 95 ns typical. The device operates reliably across its full –40°C to +85°C temperature range at this rate without requiring data encoding or clock recovery circuitry.
Does HFBR-3810MSZ require an external drive circuit?
Yes, HFBR-3810MSZ requires the mandatory drive circuit shown in the AV02-2510EN datasheet (page 5), including SN75451 buffer, R1/R2 current-limiting resistors, and C1/C2 decoupling capacitors. This circuit ensures proper LED forward current (54–90 mA peak) and prevents damage from overcurrent or reverse voltage - deviations risk reduced lifetime or immediate failure of the HFBR-3810MSZ transmitter section.
What is the isolation rating and safety certification of HFBR-3810MSZ?
HFBR-3810MSZ provides 12 kV transient voltage suppression per IEC 60664-1 (Overvoltage Category IV, pollution degree 3, material group II, up to 2000 m altitude). It also complies with laser Class 1 per IEC 60825:2001 Amendment, ensuring eye safety without enclosure interlocks. Clearance is 25.1 mm and creepage is 23.1 mm - values verified in the Mechanical Dimensions table of the HFBR-3810MSZ datasheet.
Can HFBR-3810MSZ operate with 3.3 V logic levels?
No, HFBR-3810MSZ is not compatible with 3.3 V logic. Its receiver requires a 5 V supply (VCC = 4.75–5.25 V) and produces CMOS/TTL output levels referenced to that rail: VOH ≥ 4.2 V and VOL ≤ 0.4 V. Connecting its Data_OUT (pin 8) to a 3.3 V input without level translation risks overvoltage damage or unreliable logic thresholds - the HFBR-3810MSZ specification does not define 3.3 V operation.
How does HFBR-3810MSZ differ from HFBR-3810Z in mechanical and electrical design?
HFBR-3810MSZ includes shield pins 9–11 for EMI suppression and has 23.1 mm creepage / 25.1 mm clearance, rated for 2000 m altitude. HFBR-3810Z omits pins 9–11, offers 28.7 mm creepage / 25.1 mm clearance, and is rated for 3000 m altitude. Both share identical signaling performance (DC–10 MBaud), but HFBR-3810MSZ's shielded layout makes it preferred for noisy inverter gate drive applications where HFBR-3810MSZ's grounding scheme reduces radiated emissions.
HFBR-3810MSZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Broadcom Limited
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Obsolete
- Data Rate:
- 10Mbps
- Wavelength:
- 650nm
- Applications:
- General Purpose
- Voltage - Supply:
- 4.75V ~ 5.25V
- Connector Type:
- -
- Mounting Type:
- Through Hole
HFBR-3810MSZ FAQ
1.How can I place an order for HFBR-3810MSZ through Aetrix?
Please submit a Request for Quotation (RFQ) for HFBR-3810MSZ 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 HFBR-3810MSZ reliable?
The price and inventory of HFBR-3810MSZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HFBR-3810MSZ is usually 5 days.
3.What payment methods are accepted for HFBR-3810MSZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HFBR-3810MSZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HFBR-3810MSZ?
HFBR-3810MSZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HFBR-3810MSZ 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 HFBR-3810MSZ?
For technical support, including HFBR-3810MSZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HFBR-3810MSZ requirements.
6.How does Aetrix verify that HFBR-3810MSZ is sourced from the original manufacturer or authorized distributors?
All HFBR-3810MSZ 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 HFBR-3810MSZ meets industry standards.
7.What is the process for return or replacement of HFBR-3810MSZ?
All HFBR-3810MSZ units undergo pre-shipment inspection (PSI). If there is an issue with HFBR-3810MSZ, 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 HFBR-3810MSZ part is unused and in its original packaging.
Return procedure for HFBR-3810MSZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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