HCPL0700 Equivalent & Substitute Parts

Part Overview

The HCPL0700 is an optoisolator with Darlington output manufactured by onsemi, designed for high-voltage isolation applications. This single-channel device provides 2500Vrms isolation with integrated base output, housed in an 8-SOIC surface mount package. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating. Alternative models are necessary to address specific application requirements including higher isolation voltage ratings, different current transfer ratios, packaging formats, and supply chain availability.

Key Parameters

Parameter	Value
Manufacturer Part Number	HCPL0700
Manufacturer	onsemi
Category	Optoisolators
Number of Channels	1
Voltage - Isolation	2500Vrms
Current Transfer Ratio (Min)	300% @ 1.6mA
Current Transfer Ratio (Max)	2600% @ 1.6mA
Output Type	Darlington with Base
Voltage - Output (Max)	7V
Current - Output / Channel	60mA
Operating Temperature	-40°C ~ 85°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the HCPL0700 is determined by the following critical parameters:

Primary Substitution Criteria:

Number of Channels: Must equal 1
Output Type: Must be Darlington with Base
Package / Case: Must be 8-SOIC (0.154", 3.90mm Width)
Mounting Type: Must be Surface Mount
Current - Output / Channel: Must support 60mA minimum
Voltage - Isolation: Must meet or exceed 2500Vrms
Current Transfer Ratio: Must fall within or overlap the 300%-2600% range at specified test conditions
Operating Temperature: Must support -40°C ~ 85°C range

Substitute Categories:

Direct Manufacturer Equivalent: Parts from the same manufacturer (onsemi) with identical electrical specifications and package format.

Parametric Equivalent: Parts from alternative manufacturers (Fairchild Semiconductor) with matching electrical characteristics and identical package specifications.

Similar Parts: Parts from alternative manufacturers (Broadcom Limited) with compatible electrical parameters but potentially different isolation voltage ratings, current transfer ratios, or timing characteristics. These require verification of application-specific requirements.

Parameter Comparison

Parameter	HCPL0700 (Main)	HCPL0701	HCPL0700V	HCPL-0700	HCPL-0700-000E	HCPL-070A
Manufacturer	onsemi	onsemi	Fairchild Semiconductor	Broadcom Limited	Broadcom Limited	Broadcom Limited
Number of Channels	1	1	1	1	1	1
Voltage - Isolation	2500Vrms	2500Vrms	2500Vrms	3750Vrms	3750Vrms	3750Vrms
Current Transfer Ratio (Min)	300% @ 1.6mA	500% @ 1.6mA	300% @ 1.6mA	300% @ 1.6mA	300% @ 1.6mA	600% @ 500µA
Current Transfer Ratio (Max)	2600% @ 1.6mA	2600% @ 1.6mA	2600% @ 1.6mA	2600% @ 1.6mA	2600% @ 1.6mA	8000% @ 500µA
Turn On / Turn Off Time (Typ)	1µs, 7µs	300ns, 1.6µs	1µs, 7µs	1.6µs, 10µs	200ns, 2µs	3µs, 34µs
Output Type	Darlington with Base	Darlington with Base	Darlington with Base	Darlington with Base	Darlington with Base	Darlington with Base
Voltage - Output (Max)	7V	18V	7V	7V	7V	18V
Current - Output / Channel	60mA	60mA	60mA	60mA	60mA	60mA
Voltage - Forward (Vf) (Typ)	1.25V	1.25V	1.25V	1.4V	1.4V	1.25V
Current - DC Forward (If) (Max)	20mA	20mA	20mA	20mA	20mA	5mA
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Not specified	RoHS non-compliant	ROHS3 Compliant	RoHS non-compliant

Engineering Selection Recommendations

HCPL0701 (Direct Manufacturer Equivalent - onsemi)

The HCPL0701 is a direct substitute from the same manufacturer with identical isolation voltage (2500Vrms), package format (8-SOIC), and output current rating (60mA). Key differences include higher minimum current transfer ratio (500% vs. 300%) and faster switching times (300ns turn-on vs. 1µs). This part maintains ROHS3 compliance and full temperature range operation (-40°C ~ 85°C). Selection is appropriate when faster switching performance is required within the same electrical envelope.

HCPL0700V (Parametric Equivalent - Fairchild Semiconductor)

The HCPL0700V provides parametric equivalence with identical electrical specifications and package format. It matches the HCPL0700 in isolation voltage (2500Vrms), current transfer ratio range (300%-2600%), and output characteristics. RoHS compliance status is not specified in available documentation. This part is suitable for applications requiring identical performance with alternative sourcing.

HCPL-0700 Series (Broadcom Limited - Similar Parts)

The Broadcom HCPL-0700 family offers higher isolation voltage (3750Vrms) compared to the HCPL0700 (2500Vrms), providing enhanced isolation margin. All variants maintain the 8-SOIC package, 60mA output current, and Darlington with Base output configuration. Variants include different packaging formats (Tube, Tape & Reel, Cut Tape) and timing characteristics. RoHS compliance varies by specific part number. These parts are suitable for applications requiring higher isolation voltage with identical mechanical and electrical interfaces.

HCPL-0700-000E (Broadcom Limited - ROHS3 Compliant Variant)

This variant combines higher isolation voltage (3750Vrms) with ROHS3 compliance and faster switching times (200ns turn-on, 2µs turn-off). It is the preferred Broadcom alternative when regulatory compliance and improved switching performance are required.

HCPL-070A (Broadcom Limited - Higher Current Transfer Ratio)

The HCPL-070A features significantly higher current transfer ratio (600%-8000% @ 500µA) and higher maximum output voltage (18V vs. 7V). However, it operates at reduced temperature range (0°C ~ 70°C vs. -40°C ~ 85°C) and lower maximum forward current (5mA vs. 20mA). This part is suitable only for applications with narrower temperature requirements and lower input current drive capability.

Frequently Asked Questions (FAQ)

Q: Can HCPL0701 directly replace HCPL0700 in existing designs?

A: Yes. Both parts are manufactured by onsemi, share identical isolation voltage (2500Vrms), package format (8-SOIC), and output current rating (60mA). The HCPL0701 has higher minimum current transfer ratio and faster switching times, which are compatible with HCPL0700 applications. No PCB modifications are required.

Q: What is the key difference between HCPL0700 and Broadcom HCPL-0700 variants?

A: The primary difference is isolation voltage: HCPL0700 provides 2500Vrms while Broadcom HCPL-0700 variants provide 3750Vrms. Both maintain identical 8-SOIC package format, 60mA output current, and Darlington with Base output. The higher isolation voltage in Broadcom parts provides additional safety margin in high-voltage isolation applications. All other electrical parameters remain compatible.

Q: Are packaging format differences between Tube, Tape & Reel, and Cut Tape significant for substitution?

A: Packaging format affects handling, storage, and assembly processes but does not impact electrical performance or PCB compatibility. All variants in the same part number family (e.g., HCPL-0700, HCPL-0700-000E, HCPL-0700-500E) are electrically identical. Selection depends on manufacturing process requirements and supply chain logistics.

Q: Why does HCPL-070A have a narrower operating temperature range?

A: The HCPL-070A is specified for 0°C ~ 70°C operation compared to HCPL0700's -40°C ~ 85°C range. This reflects different design margins and qualification testing. Applications requiring full -40°C ~ 85°C operation must use HCPL0700, HCPL0701, or Broadcom HCPL-0700 variants, not HCPL-070A.

Q: Can HCPL-070A replace HCPL0700 in all applications?

A: No. HCPL-070A is not a universal substitute due to three limiting factors: narrower operating temperature range (0°C ~ 70°C vs. -40°C ~ 85°C), lower maximum forward current (5mA vs. 20mA), and different current transfer ratio test conditions (500µA vs. 1.6mA). Use HCPL-070A only in applications with temperature range 0°C ~ 70°C and input current capability below 5mA.

Q: What does RoHS compliance status mean for part selection?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances regulations and contains no lead, mercury, cadmium, or other restricted materials. HCPL0700 and HCPL0701 are ROHS3 compliant. Broadcom HCPL-0700 base variants are RoHS non-compliant, while HCPL-0700-000E and HCPL-0700-560E are ROHS3 compliant. Selection depends on regulatory requirements for the end application.

Q: Is HCPL0700V from Fairchild Semiconductor still available?

A: HCPL0700V is listed as active with 5946 units in stock. However, Fairchild Semiconductor was acquired by ON Semiconductor in 2016. Verify current availability and lead times through authorized distributors, as legacy Fairchild part numbers may have limited future supply.

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