HCPL-2611-320E Equivalent & Substitute Parts

Part Overview

The HCPL-2611-320E is a logic output optoisolator manufactured by Broadcom Limited, designed for high-speed digital isolation applications. This 5000Vrms isolation device features open collector output with Schottky clamping, operating at 10MBd data rate with 15kV/µs common mode transient immunity. The component is housed in an 8-DIP Gull Wing package and maintains active product status with full RoHS3 compliance. Substitute parts are identified to address packaging preferences, inventory availability, or specific parameter requirements within the allowed electrical and mechanical specifications for this optoisolator category.

Substiute Parts

HCPL-2611-320E

Broadcom LimitedIn Stock: 813HCPL-2611-320E Datasheet

Current PartRFQ

FOD260LS

onsemiIn Stock: 1375FOD260LS Datasheet

MFR RecommendedRFQ

FOD260LSD

onsemiIn Stock: 1463FOD260LSD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HCPL-2611-320E are qualified based on the following critical parameters that define functional equivalence within the optoisolator category:

• Isolation Voltage: 5000Vrms (maintained across all substitutes)
• Number of Channels: 1 (single-channel configuration)
• Output Configuration: Open Collector, Schottky Clamped
• Input Type: DC
• Operating Temperature Range: -40°C ~ 85°C
• Data Rate: 10MBd / 10Mbps (equivalent performance)
• Output Current Capability: 50 mA per channel
• Supply Voltage Range: Compatible with 4.5V ~ 5.5V operation
• Package Type: 8-SMD, Gull Wing (mechanical compatibility)
• Compliance: RoHS3 Compliant, REACH Unaffected

The FOD260LS and FOD260LSD from onsemi meet these core substitution criteria. Both devices maintain identical isolation voltage, channel count, output type, and operating specifications. Differences in Common Mode Transient Immunity (25kV/µs vs. 15kV/µs) and propagation delay characteristics represent performance enhancements rather than incompatibilities. Packaging differentiation (Tube vs. Tape & Reel) addresses supply chain and assembly process requirements without affecting electrical function.

Parameter Comparison

Engineering Selection Recommendations

Both FOD260LS and FOD260LSD qualify as direct substitutes for the HCPL-2611-320E based on maintained electrical specifications and compliance certifications. All three devices are active products with RoHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current and future applications.

FOD260LS and FOD260LSD offer enhanced Common Mode Transient Immunity (25kV/µs) compared to the HCPL-2611-320E (15kV/µs), providing superior noise rejection in high-speed switching environments. Both onsemi devices demonstrate faster propagation delay characteristics (90ns/75ns vs. 100ns/100ns), supporting higher-speed digital isolation requirements.

The FOD260LS and FOD260LSD differ only in packaging format: FOD260LS is supplied in Tube packaging, while FOD260LSD is supplied in Tape & Reel format. Selection between these variants depends on assembly process requirements and volume considerations rather than electrical performance.

The expanded supply voltage range of FOD260LS and FOD260LSD (3V ~ 5.5V vs. 4.5V ~ 5.5V) provides additional design flexibility for low-voltage applications while maintaining full compatibility with standard 5V logic systems.

Frequently Asked Questions (FAQ)

Q: Can FOD260LS or FOD260LSD be used as direct replacements for HCPL-2611-320E in existing designs?

A: Yes. Both FOD260LS and FOD260LSD maintain the critical electrical parameters required for substitution: 5000Vrms isolation voltage, single-channel configuration, open collector output with Schottky clamping, 50mA output current, 10MBd/10Mbps data rate, and -40°C to 85°C operating temperature range. Pin-compatible 8-SMD Gull Wing packaging ensures mechanical fit without PCB redesign.

Q: What is the difference between FOD260LS and FOD260LSD?

A: FOD260LS and FOD260LSD are electrically identical. The sole difference is packaging format: FOD260LS is supplied in Tube packaging, while FOD260LSD is supplied in Tape & Reel (TR) format. Selection depends on assembly process requirements and volume handling preferences.

Q: Do the substitute parts offer any performance advantages?

A: FOD260LS and FOD260LSD provide enhanced Common Mode Transient Immunity (25kV/µs vs. 15kV/µs) and faster propagation delay (90ns/75ns vs. 100ns/100ns). These represent performance improvements suitable for high-speed switching and noise-sensitive applications. The expanded supply voltage range (3V ~ 5.5V) offers additional design flexibility.

Q: Are all three parts RoHS3 compliant?

A: Yes. HCPL-2611-320E, FOD260LS, and FOD260LSD are all RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating and REACH unaffected status.

Q: What supply voltage range should be used for substitution?

A: The HCPL-2611-320E operates at 4.5V ~ 5.5V. FOD260LS and FOD260LSD support 3V ~ 5.5V. When substituting, maintain the original design supply voltage (4.5V ~ 5.5V) unless the expanded lower voltage capability of the onsemi devices is specifically required.

Q: Are there any timing considerations when substituting these parts?

A: FOD260LS and FOD260LSD exhibit faster propagation delay (90ns/75ns maximum) compared to HCPL-2611-320E (100ns/100ns maximum). In timing-critical applications, verify that the faster response does not introduce signal integrity issues. Rise and fall time characteristics also differ slightly but remain within typical digital isolation specifications.