HCPL-061N Equivalent & Substitute Parts

Part Overview

The HCPL-061N is a logic output optoisolator manufactured by Broadcom Limited, designed for high-speed digital isolation applications. This 3750Vrms isolation device operates at 10MBd data rate with open collector, Schottky clamped output configuration in an 8-SOIC package. The part is currently active in production with 2900 units in stock. Equivalent and substitute parts are identified based on matching isolation voltage, output type, data rate, channel configuration, and package specifications to ensure functional compatibility in circuit designs requiring galvanic isolation.

Key Parameters

Parameter	HCPL-061N
Manufacturer	Broadcom Limited
Voltage - Isolation	3750Vrms
Number of Channels	1
Output Type	Open Collector, Schottky Clamped
Data Rate	10MBd
Current - Output / Channel	50 mA
Common Mode Transient Immunity (Min)	1kV/µs
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the HCPL-061N are qualified based on the following critical parameters that determine functional equivalence:

Isolation Voltage: 3750Vrms (all substitutes match this specification)
Number of Channels: 1 channel configuration
Output Type: Open Collector, Schottky Clamped topology
Data Rate: 10MBd or 10Mbps (equivalent performance)
Output Current: 50 mA per channel
Package: 8-SOIC form factor with 0.154" width, 3.90mm
Operating Temperature Range: -40°C ~ 85°C
Input Type: DC

Substitutes are grouped into two categories: direct equivalents from Broadcom (HCPL-061N-000E) and cross-manufacturer alternatives (onsemi FOD060L series, onsemi HCPL0600R2, Fairchild HCPL0600/HCPL0601R2/HCPL0611R2). All qualified substitutes maintain identical isolation voltage, channel count, output configuration, and package specifications. Variations in Common Mode Transient Immunity (CMTI) and propagation delay do not disqualify substitution when the application does not require the specific CMTI performance of the original part.

Parameter Comparison

Parameter	HCPL-061N	HCPL-061N-000E	FOD060L	FOD060LR2	HCPL0600	HCPL0600R2	HCPL0601R2	HCPL0611R2
Manufacturer	Broadcom	Broadcom	onsemi	onsemi	Fairchild	onsemi	Fairchild	Fairchild
Voltage - Isolation	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms
Number of Channels	1	1	1	1	1	1	1	1
Output Type	Open Collector, Schottky Clamped	Open Collector, Schottky Clamped	Open Collector, Schottky Clamped	Open Collector, Schottky Clamped	Open Collector	Open Collector	Open Collector	Open Collector
Data Rate	10MBd	10MBd	10Mbps	10Mbps	10Mbps	10Mbps	10Mbps	10Mbps
Current - Output / Channel	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA
Common Mode Transient Immunity (Min)	1kV/µs	1kV/µs	25kV/µs	25kV/µs	5kV/µs	5kV/µs	10kV/µs	15kV/µs
Propagation Delay tpLH (Max)	100ns	100ns	90ns	90ns	75ns	75ns	75ns	75ns
Propagation Delay tpHL (Max)	100ns	100ns	75ns	75ns	75ns	75ns	75ns	75ns
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	3V ~ 5.5V	3V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	Not specified	ROHS3 Compliant	Not specified	Not specified
Product Status	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

HCPL-061N-000E (Broadcom Limited) is the direct equivalent from the original manufacturer. This part maintains identical electrical specifications and is ROHS3 compliant, addressing environmental compliance requirements where the original HCPL-061N does not. Selection of this part eliminates any cross-manufacturer compatibility concerns and maintains supply chain consistency with the original design.

FOD060L and FOD060LR2 (onsemi) are qualified substitutes offering superior Common Mode Transient Immunity (25kV/µs) and faster propagation delay performance compared to the HCPL-061N. Both parts are ROHS3 compliant and available in high inventory quantities. FOD060LR2 is supplied in Tape & Reel packaging, suitable for automated assembly environments. These parts are suitable for applications where enhanced noise immunity is beneficial.

HCPL0600R2 (onsemi) provides a cost-effective alternative with moderate CMTI performance (5kV/µs) and is ROHS3 compliant. This part is available in the highest inventory quantity (274,772 units) and represents a stable, long-term supply option.

HCPL0601R2 and HCPL0611R2 (Fairchild Semiconductor) offer intermediate CMTI specifications (10kV/µs and 15kV/µs respectively) and are available in substantial quantities. These parts maintain full electrical compatibility with the HCPL-061N while providing enhanced transient immunity for noise-sensitive applications.

Selection should prioritize ROHS3 compliance requirements, supply chain continuity, and application-specific CMTI performance needs. All listed substitutes are active products with confirmed inventory availability.

Frequently Asked Questions (FAQ)

Q: Can HCPL-061N be directly replaced with HCPL-061N-000E?

A: Yes. HCPL-061N-000E is the direct Broadcom equivalent with identical electrical specifications. The primary difference is ROHS3 compliance status. Pin configuration, package, and functional performance are identical, enabling direct substitution without circuit modification.

Q: What is the significance of Common Mode Transient Immunity (CMTI) differences among substitutes?

A: CMTI defines the maximum rate of voltage change the optoisolator can tolerate on the isolation barrier without causing false output transitions. The HCPL-061N specifies 1kV/µs minimum. Substitute parts with higher CMTI ratings (FOD060L at 25kV/µs, HCPL0611R2 at 15kV/µs) provide enhanced immunity to fast transients but are not required for applications designed to the original 1kV/µs specification. Higher CMTI does not degrade performance in lower-noise environments.

Q: Are all substitutes available in the same packaging format?

A: All qualified substitutes use the 8-SOIC package with 0.154" width and 3.90mm height, ensuring identical PCB footprint compatibility. Packaging format differences (Tube, Tape & Reel, Bulk) relate to supply and handling only and do not affect electrical or mechanical compatibility.

Q: Does the FOD060L supply voltage range of 3V ~ 5.5V affect substitution suitability?

A: No. The FOD060L extended lower supply voltage limit (3V minimum versus 4.5V for HCPL-061N) provides additional design flexibility but does not create incompatibility. Circuits designed for 4.5V ~ 5.5V operation remain fully compatible with FOD060L, which operates across this range.

Q: What is the difference between FOD060L and FOD060LR2?

A: Both parts are electrically identical. FOD060LR2 is supplied in Tape & Reel format for automated pick-and-place assembly, while FOD060L is supplied in Tube format. Selection depends on manufacturing process requirements, not electrical performance.

Q: Can substitutes with faster propagation delay (75ns versus 100ns) be used in timing-critical applications?

A: Yes. Faster propagation delay is a performance enhancement that does not create incompatibility. Applications designed for 100ns propagation delay will function correctly with parts specified at 75ns. The faster response may improve overall system timing margins.

Q: Are there any RoHS compliance considerations when selecting substitutes?

A: The original HCPL-061N is RoHS non-compliant. If RoHS3 compliance is required for the end application, HCPL-061N-000E, FOD060L, FOD060LR2, and HCPL0600R2 are all ROHS3 compliant alternatives. Fairchild parts (HCPL0601R2, HCPL0611R2) do not specify RoHS status in available documentation.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message