SFH6702 Equivalent & Substitute Parts

Part Overview

The SFH6702 is a logic output optoisolator manufactured by Vishay Semiconductor Opto Division, featuring 5300Vrms isolation voltage, push-pull totem pole output configuration, and 5MBd data rate capability. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The 8-DIP through-hole package and DC input type establish the baseline for functional equivalency assessment.

Key Parameters

Parameter	SFH6702 Value
Isolation Voltage	5300Vrms
Number of Channels	1
Output Type	Push-Pull, Totem Pole
Current - Output / Channel	25 mA
Data Rate	5MBd
Common Mode Transient Immunity (Min)	1kV/µs
Propagation Delay tpLH / tpHL (Max)	300ns, 300ns
Voltage - Supply	4.5V ~ 15V
Operating Temperature	-40°C ~ 85°C
Package / Case	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the SFH6702 is determined by the following critical parameters:

Mandatory Matching Criteria:

Package type: 8-DIP (0.300", 7.62mm) through-hole configuration
Output configuration: Push-pull, totem pole
Number of channels: 1 channel, 1 input / 0 side 2 inputs
Output current capability: 25 mA per channel
Input type: DC
Propagation delay: 300ns maximum (tpLH and tpHL)
Data rate: 5MBd

Acceptable Variation Parameters:

Isolation voltage: Minimum 3750Vrms (lower than SFH6702 5300Vrms but within functional tolerance for most applications)
Common Mode Transient Immunity: 1kV/µs or higher
Supply voltage range: 4.5V minimum, 20V maximum (SFH6702 limited to 15V)
Operating temperature: -40°C to 85°C or -40°C to 100°C
Rise/Fall time: Variations acceptable within output switching performance
RoHS compliance: Both compliant and non-compliant variants listed

The substitute parts identified—ACPL-4800 series, HCPL-2202 series, and HCPL-2212 series—maintain functional equivalency through matching package, channel configuration, output type, and propagation delay specifications while offering active product status and improved availability.

Parameter Comparison

Parameter	SFH6702	ACPL-4800-000E	ACPL-4800-060E	HCPL-2202-000E	HCPL-2202-060E	HCPL-2212-000E	HCPL-2212-060E
Manufacturer	Vishay	Broadcom	Broadcom	Broadcom	Broadcom	Broadcom	Broadcom
Isolation Voltage	5300Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms
Number of Channels	1	1	1	1	1	1	1
Output Type	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole
Current - Output / Channel	25 mA	25 mA	25 mA	25 mA	25 mA	25 mA	25 mA
Data Rate	5MBd	—	—	5MBd	5MBd	5MBd	5MBd
Common Mode Transient Immunity (Min)	1kV/µs	30kV/µs	30kV/µs	1kV/µs	1kV/µs	5kV/µs, 10kV/µs	5kV/µs, 10kV/µs
Propagation Delay tpLH / tpHL (Max)	300ns, 300ns	350ns, 350ns	350ns, 350ns	300ns, 300ns	300ns, 300ns	300ns, 300ns	300ns, 300ns
Voltage - Supply	4.5V ~ 15V	4.5V ~ 20V	4.5V ~ 20V	4.5V ~ 20V	4.5V ~ 20V	4.5V ~ 20V	4.5V ~ 20V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 100°C	-40°C ~ 100°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

HCPL-2202-000E and HCPL-2202-060E are the closest functional equivalents to the SFH6702. Both maintain identical propagation delay specifications (300ns), matching 5MBd data rate, and equivalent 1kV/µs common mode transient immunity. Both variants are ROHS3 compliant and active products. The -000E variant offers lower inventory (2214 pcs) while the -060E variant provides higher stock availability (5900 pcs). Operating temperature range matches the SFH6702 at -40°C to 85°C.

HCPL-2212-000E and HCPL-2212-060E provide enhanced common mode transient immunity (5kV/µs, 10kV/µs) compared to the SFH6702, with identical propagation delay and data rate performance. Both are ROHS3 compliant active products. The -060E variant has significantly higher inventory (6000 pcs) versus -000E (1468 pcs). These variants are suitable for applications requiring improved noise immunity.

Secondary Substitutes (Acceptable with Design Consideration):

ACPL-4800-000E and ACPL-4800-060E offer substantially higher common mode transient immunity (30kV/µs) and extended operating temperature range (-40°C to 100°C). However, propagation delay is increased to 350ns maximum, representing a 50ns degradation from the SFH6702 specification. Data rate specification is not provided for these variants. These substitutes are appropriate for applications where propagation delay tolerance permits the 50ns increase and where enhanced noise immunity is beneficial. Both are ROHS3 compliant active products with good inventory availability (5500 pcs and 959 pcs respectively).

Compliance Considerations:

All identified substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the SFH6702 environmental compliance profile. All substitute parts are classified as active products, ensuring long-term availability and manufacturing support compared to the obsolete SFH6702.

Frequently Asked Questions (FAQ)

Q: Can ACPL-4800 series parts directly replace SFH6702 in existing designs?

A: ACPL-4800-000E and ACPL-4800-060E are mechanically and functionally compatible through the 8-DIP package and matching output configuration. However, the 50ns increase in maximum propagation delay (350ns versus 300ns) must be evaluated against circuit timing requirements. Applications with tight timing constraints may require design modification or selection of HCPL-2202 or HCPL-2212 variants instead.

Q: What is the difference between HCPL-2202 and HCPL-2212 variants?

A: Both HCPL-2202 and HCPL-2212 maintain identical propagation delay (300ns) and data rate (5MBd) specifications. The primary distinction is common mode transient immunity: HCPL-2202 specifies 1kV/µs (matching SFH6702), while HCPL-2212 specifies 5kV/µs and 10kV/µs. HCPL-2212 is recommended for applications with high-speed switching noise or where enhanced transient immunity provides design margin.

Q: Are the -000E and -060E packaging variants electrically identical?

A: Yes. The -000E and -060E designations indicate packaging and temperature grade variations, not electrical performance differences. Both variants of each base part number (HCPL-2202, HCPL-2212, ACPL-4800) provide identical electrical specifications. Selection between variants is based on inventory availability, packaging requirements, and supply chain considerations.

Q: Does the lower isolation voltage of substitute parts affect circuit safety?

A: Substitute parts specify 3750Vrms isolation versus the SFH6702's 5300Vrms. This 1550Vrms reduction must be evaluated against application isolation requirements. If the original design specified 5300Vrms for regulatory compliance or safety margin, the lower isolation voltage of substitutes may not be acceptable. Consult application safety standards and isolation requirement documentation before substitution.

Q: Which substitute part offers the best inventory availability?

A: HCPL-2212-060E provides the highest inventory level at 6000 pcs, followed by HCPL-2202-060E at 5900 pcs. Both are ROHS3 compliant active products with identical propagation delay to the SFH6702. For applications without specific common mode transient immunity requirements, HCPL-2202-060E offers the closest electrical match with excellent availability.

Q: Can substitute parts operate at the SFH6702's maximum supply voltage of 15V?

A: All identified substitute parts support supply voltage ranges of 4.5V to 20V, which encompasses the SFH6702's 4.5V to 15V range. Substitute parts are fully compatible with existing power supply designs without modification.

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