HCPL-4701#300 Equivalent & Substitute Parts

Part Overview

The HCPL-4701#300 is an optoisolator with Darlington output manufactured by Broadcom Limited. This component provides 3750Vrms isolation in a single-channel configuration with 8-DIP Gull Wing surface mount packaging. The part is currently active in production with 885 units in stock. Substitute parts are identified to address packaging preferences, compliance requirements, and inventory availability while maintaining functional compatibility within specified electrical parameters.

Key Parameters

Parameter	Value
Manufacturer Part Number	HCPL-4701#300
Manufacturer	Broadcom Limited
Category	Optoisolators
Number of Channels	1
Voltage - Isolation	3750Vrms
Current Transfer Ratio (Min)	600% @ 500µA
Current Transfer Ratio (Max)	8000% @ 500µA
Output Type	Darlington with Base
Voltage - Output (Max)	18V
Current - Output / Channel	60mA
Operating Temperature	0°C ~ 70°C
Package / Case	8-SMD, Gull Wing
RoHS Status	RoHS non-compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the HCPL-4701#300 are grouped based on the following allowed electrical and mechanical parameters:

Primary Compatibility Criteria:

Output Type: Darlington with Base
Number of Channels: 1
Package / Case: 8-SMD, Gull Wing
Current - Output / Channel: 60mA
Input Type: DC
Mounting Type: Surface Mount

Acceptable Parameter Variations:

Voltage - Isolation: Equal to or greater than 3750Vrms
Current Transfer Ratio (Min): Equal to or greater than 600% @ specified test current
Voltage - Output (Max): Equal to or greater than 18V
Operating Temperature: Equal to or wider than 0°C ~ 70°C

Packaging Format Variations: Substitute parts may differ in packaging format (Tube, Tape & Reel, Cut Tape) while maintaining identical electrical specifications and 8-SMD Gull Wing case geometry.

Parameter Comparison

Parameter	HCPL-4701#300	HCPL-4701-300E	6N138SMT/R	6N139-X009	6N139-X009T	6N139-X017T	6N139SMT&R
Manufacturer	Broadcom Limited	Broadcom Limited	Isocom Components 2004 LTD	Vishay Semiconductor Opto Division	Vishay Semiconductor Opto Division	Vishay Semiconductor Opto Division	Isocom Components 2004 LTD
Voltage - Isolation	3750Vrms	3750Vrms	5000Vrms	5300Vrms	5300Vrms	5300Vrms	5000Vrms
Current Transfer Ratio (Min)	600% @ 500µA	600% @ 500µA	300% @ 1.6mA	500% @ 1.6mA	500% @ 1.6mA	500% @ 1.6mA	500% @ 1.6mA
Output Type	Darlington with Base	Darlington with Base	Darlington with Base	Darlington with Base	Darlington with Base	Darlington with Base	Darlington with Base
Voltage - Output (Max)	18V	18V	7V	18V	18V	18V	18V
Current - Output / Channel	60mA	60mA	60mA	60mA	60mA	60mA	60mA
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C	0°C ~ 70°C
Package / Case	8-SMD, Gull Wing	8-SMD, Gull Wing	8-SMD, Gull Wing	8-SMD, Gull Wing	8-SMD, Gull Wing	8-SMD, Gull Wing	8-SMD, Gull Wing
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active	Active
Packaging Format	Tube	Tube	Tape & Reel (TR)	Tube	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)
Inventory (Pcs)	885	1808	3008	3206	1004	1106	4961

Engineering Selection Recommendations

Direct Equivalent (Same Manufacturer): HCPL-4701-300E is the direct equivalent from Broadcom Limited with identical electrical specifications and operating temperature range. This part differs only in RoHS compliance status (ROHS3 Compliant vs. RoHS non-compliant). Selection of HCPL-4701-300E is appropriate when RoHS3 compliance is required for the end application.

Cross-Manufacturer Substitutes with Enhanced Isolation: Parts 6N139-X009, 6N139-X009T, and 6N139-X017T from Vishay Semiconductor Opto Division provide higher isolation voltage (5300Vrms vs. 3750Vrms) and extended operating temperature range (-55°C ~ 100°C vs. 0°C ~ 70°C). These parts maintain all critical electrical parameters including 60mA output current and 18V maximum output voltage. All three variants are ROHS3 Compliant. Selection differs only by packaging format: Tube (6N139-X009), Tape & Reel (6N139-X009T), or Cut Tape with Digi-Reel (6N139-X017T).

Cross-Manufacturer Substitutes with Standard Isolation: Parts 6N138SMT/R and 6N139SMT&R from Isocom Components 2004 LTD provide 5000Vrms isolation with ROHS3 compliance. Both maintain 60mA output current and are available in Tape & Reel packaging. 6N138SMT/R has a maximum output voltage of 7V, which is lower than the HCPL-4701#300 specification of 18V. 6N139SMT&R maintains the full 18V output voltage specification.

Compliance Consideration: All substitute parts listed are ROHS3 Compliant, whereas the original HCPL-4701#300 is RoHS non-compliant. This distinction is significant for applications subject to RoHS regulations.

Frequently Asked Questions (FAQ)

Q: Can I use 6N138SMT/R as a direct substitute for HCPL-4701#300? A: 6N138SMT/R is electrically compatible in terms of isolation voltage, output type, and output current. However, its maximum output voltage is 7V compared to the HCPL-4701#300 specification of 18V. Use this part only if your circuit design operates within the 7V output voltage limit.

Q: What is the difference between 6N139-X009, 6N139-X009T, and 6N139-X017T? A: These three parts are electrically identical with 5300Vrms isolation, 500% minimum current transfer ratio, and 18V maximum output voltage. They differ only in packaging format: 6N139-X009 is supplied in Tube format, 6N139-X009T in Tape & Reel, and 6N139-X017T in Cut Tape with Digi-Reel. Select based on your assembly process requirements.

Q: Is HCPL-4701-300E a true equivalent to HCPL-4701#300? A: Yes. HCPL-4701-300E is manufactured by the same company (Broadcom Limited) with identical electrical specifications, isolation voltage, output current, and operating temperature range. The only difference is RoHS compliance status. HCPL-4701-300E is ROHS3 Compliant.

Q: Can I use a substitute part with higher isolation voltage than the original? A: Yes. All listed substitute parts with isolation voltages of 5000Vrms or 5300Vrms exceed the original 3750Vrms specification. Higher isolation voltage provides additional safety margin and is functionally compatible with circuits designed for the original part.

Q: Which substitute part has the widest operating temperature range? A: Parts 6N139-X009, 6N139-X009T, and 6N139-X017T operate across -55°C ~ 100°C, compared to the original HCPL-4701#300 range of 0°C ~ 70°C. These parts are suitable for applications requiring extended temperature performance.

Q: Are all substitute parts ROHS3 Compliant? A: Yes. All seven substitute parts listed (HCPL-4701-300E, 6N138SMT/R, 6N139-X009, 6N139-X009T, 6N139-X017T, and 6N139SMT&R) are ROHS3 Compliant, whereas the original HCPL-4701#300 is RoHS non-compliant.

Q: What is the difference between Tube, Tape & Reel, and Cut Tape packaging? A: These are packaging and delivery formats for surface mount components. Tube packaging is suitable for manual handling and small quantities. Tape & Reel is standard for automated assembly lines. Cut Tape with Digi-Reel is a hybrid format combining tape benefits with reel convenience. All three formats contain electrically identical components; selection depends on your manufacturing process.

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