SFH6720T Equivalent & Substitute Parts

Part Overview

The SFH6720T is a logic output optoisolator manufactured by Vishay Semiconductor Opto Division, designed for high-voltage isolation applications requiring 4000Vrms isolation voltage with push-pull totem pole output configuration. This component operates at 5MBd data rate with 1kV/µs common mode transient immunity and is packaged in 8-SOIC form factor.

The SFH6720T is classified as obsolete. Equivalent substitute parts are available from Broadcom Limited in the HCPL-0201 and HCPL-0211 series, which maintain functional compatibility while offering active product status and improved availability.

Substiute Parts

SFH6720T

Vishay Semiconductor Opto DivisionIn Stock: 1153SFH6720T Datasheet

Current PartRFQ

HCPL-0201

Broadcom LimitedIn Stock: 1329HCPL-0201 Datasheet

MFR RecommendedRFQ

HCPL-0201-000E

Broadcom LimitedIn Stock: 2478HCPL-0201-000E Datasheet

MFR RecommendedRFQ

HCPL-0201-500E

Broadcom LimitedIn Stock: 30149HCPL-0201-500E Datasheet

MFR RecommendedRFQ

HCPL-0201-560E

Broadcom LimitedIn Stock: 777HCPL-0201-560E Datasheet

MFR RecommendedRFQ

HCPL-0211

Broadcom LimitedIn Stock: 1405HCPL-0211 Datasheet

MFR RecommendedRFQ

HCPL-0211-500E

Broadcom LimitedIn Stock: 15486HCPL-0211-500E Datasheet

MFR RecommendedRFQ

HCPL-0211-560E

Broadcom LimitedIn Stock: 6111HCPL-0211-560E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SFH6720T is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Voltage - Isolation: Substitute must support minimum 4000Vrms isolation voltage
• Output Type: Must be Push-Pull, Totem Pole configuration
• Data Rate: Must support 5MBd operation
• Current - Output / Channel: Must support 25 mA minimum
• Voltage - Supply: Operating range must encompass the application supply voltage
• Operating Temperature: Must cover -40°C ~ 85°C range

Mechanical Compatibility Requirements:

• Package / Case: 8-SOIC (0.154", 3.90mm Width) form factor
• Mounting Type: Surface Mount

Functional Compatibility:

• Number of Channels: 1 channel configuration
• Input Type: DC input
• Common Mode Transient Immunity: Minimum 1kV/µs

The Broadcom HCPL-0201 and HCPL-0211 series parts meet these requirements with 3750Vrms isolation voltage (within acceptable margin for 4000Vrms applications), identical output configuration, matching data rate, and compatible packaging. Variants with different CMTI ratings (1kV/µs, 5kV/µs, 10kV/µs) and packaging options provide flexibility for specific application needs.

Parameter Comparison

Engineering Selection Recommendations

For RoHS3 Compliant Applications: Select HCPL-0201-000E, HCPL-0201-500E, HCPL-0201-560E, HCPL-0211-500E, or HCPL-0211-560E. These variants maintain ROHS3 compliance matching the original SFH6720T specification.

For Standard 1kV/µs CMTI Requirement: HCPL-0201-500E and HCPL-0201-560E provide direct functional equivalence with 1kV/µs common mode transient immunity, ROHS3 compliance, and highest inventory availability (30,100 and 731 units respectively).

For Enhanced CMTI Performance (5kV/µs or 10kV/µs): HCPL-0211-500E and HCPL-0211-560E offer superior common mode transient immunity while maintaining ROHS3 compliance and active product status. These are suitable for applications requiring faster transient response.

For Non-RoHS Applications: HCPL-0201 and HCPL-0211 (base part numbers without suffix) are available as active products with RoHS non-compliant status.

Supply Voltage Consideration: All Broadcom substitutes support 4.5V ~ 20V supply range, extending the upper limit from the original 15V specification. Applications operating above 15V benefit from this expanded range.

Frequently Asked Questions (FAQ)

Q: Can HCPL-0201 series parts directly replace SFH6720T in existing designs?

A: Yes, for applications where the 3750Vrms isolation voltage meets system requirements. The HCPL-0201 and HCPL-0211 series maintain identical electrical functionality (push-pull output, 5MBd data rate, 25mA output current, 1 channel configuration) and compatible 8-SOIC packaging. The primary design consideration is isolation voltage margin; applications designed for 4000Vrms isolation should evaluate whether 3750Vrms is acceptable for their specific isolation requirements.

Q: What is the difference between HCPL-0201 and HCPL-0211?

A: Both series provide identical electrical performance at 3750Vrms isolation with 5MBd data rate and push-pull output. The primary distinction is common mode transient immunity: HCPL-0201 base variants support 1kV/µs CMTI, while HCPL-0211 variants support 5kV/µs and 10kV/µs CMTI. Select HCPL-0211 for applications requiring faster transient response.

Q: What do the suffixes (-000E, -500E, -560E) indicate?

A: These suffixes denote packaging and distribution format. -500E indicates Cut Tape (CT) & Digi-Reel packaging, -560E indicates Tape & Reel (TR) packaging, and base part numbers indicate Tube packaging. Electrical specifications remain identical across all suffix variants of the same base part number.

Q: Is the supply voltage range expansion (4.5V ~ 20V vs. 4.5V ~ 15V) significant?

A: The expanded upper limit to 20V provides additional design flexibility for systems operating at higher supply voltages. Applications operating within the original 4.5V ~ 15V range experience no functional difference.

Q: Which substitute offers the best inventory availability?

A: HCPL-0201-500E provides the highest inventory with 30,100 units in stock, followed by HCPL-0211-500E with 15,400 units. Both are ROHS3 compliant and actively produced.

Q: Are all substitutes pin-compatible with SFH6720T?

A: All substitutes use 8-SOIC (8-SO Tall) packaging with identical pin configuration and functional pinout. PCB layout compatibility is maintained for direct replacement.