SFH6711 Equivalent & Substitute Parts

Part Overview

The SFH6711 is a logic output optoisolator manufactured by Vishay Semiconductor Opto Division, designed for high-voltage isolation applications requiring 5.3kV isolation rating and push-pull totem pole output configuration. This 8-DIP through-hole component operates at 5MBd data rate with 2.5kV/µs common mode transient immunity. The product is currently obsolete, making equivalent substitute parts necessary for new designs and ongoing production support.

Key Parameters

Parameter	SFH6711
Voltage - Isolation	5300Vrms
Common Mode Transient Immunity (Min)	2.5kV/µs
Number of Channels	1
Output Type	Push-Pull, Totem Pole
Current - Output / Channel	25 mA
Data Rate	5MBd
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
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the SFH6711 are selected based on the following critical parameters that determine functional compatibility:

Isolation Voltage: Substitute parts must maintain isolation capability. The SFH6711 specifies 5300Vrms isolation. Broadcom HCPL series substitutes provide 3750Vrms isolation, which is lower but remains within acceptable operating margins for applications not requiring the full 5.3kV rating.
Output Configuration: All substitutes maintain push-pull totem pole output with 25 mA per channel, matching the original design.
Data Rate: All substitutes operate at 5MBd, identical to the SFH6711.
Propagation Delay: All substitutes maintain 300ns maximum propagation delay specifications.
Package: All substitutes use 8-DIP (0.300", 7.62mm) through-hole packaging, ensuring mechanical and electrical compatibility.
Operating Temperature Range: All substitutes support -40°C ~ 85°C operation.
Supply Voltage: Substitutes support 4.5V ~ 20V, which encompasses the SFH6711 range of 4.5V ~ 15V.

The HCPL-2201 and HCPL-2211 base part numbers represent two distinct product lines. HCPL-2211 variants offer enhanced common mode transient immunity (5kV/µs, 10kV/µs) compared to HCPL-2201 variants (1kV/µs). Packaging variants (-000E, -060E, #060) indicate different tape-and-reel or tube configurations without affecting electrical performance.

Parameter Comparison

Parameter	SFH6711	HCPL-2201	HCPL-2201-000E	HCPL-2201-060E	HCPL-2211	HCPL-2211-000E	HCPL-2211-060E	HCPL-2211#060
Voltage - Isolation	5300Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms
Common Mode Transient Immunity (Min)	2.5kV/µs	1kV/µs	1kV/µs	1kV/µs	5kV/µs, 10kV/µs	5kV/µs, 10kV/µs	5kV/µs, 10kV/µs	5kV/µs, 10kV/µs
Number of Channels	1	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	Push-Pull, Totem Pole
Current - Output / Channel	25 mA	25 mA	25 mA	25 mA	25 mA	25 mA	25 mA	25 mA
Data Rate	5MBd	5MBd	5MBd	5MBd	5MBd	5MBd	5MBd	5MBd
Propagation Delay tpLH / tpHL (Max)	300ns, 300ns	300ns, 300ns	300ns, 300ns	300ns, 300ns	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	4.5V ~ 20V
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-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)	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant

Engineering Selection Recommendations

For RoHS3 Compliance Requirements: Select HCPL-2201-000E, HCPL-2201-060E, HCPL-2211-000E, or HCPL-2211-060E. These variants carry ROHS3 Compliant certification, matching the SFH6711 compliance status.

For Standard Applications: HCPL-2201 series substitutes provide adequate performance for applications where the 3750Vrms isolation rating and 1kV/µs common mode transient immunity meet system requirements. These parts are active products with high inventory availability.

For High Common Mode Transient Immunity Requirements: HCPL-2211 series substitutes offer 5kV/µs or 10kV/µs common mode transient immunity, exceeding the SFH6711 specification of 2.5kV/µs. This enhanced performance is beneficial for applications with steep voltage transitions or noise-sensitive environments.

Packaging Considerations: Base part numbers (HCPL-2201, HCPL-2211) are supplied in standard packaging. Variants with -000E or -060E suffixes indicate tube packaging. The HCPL-2211#060 variant also uses tube packaging. Select packaging based on procurement and assembly requirements.

Supply Voltage Margin: All substitutes support 4.5V ~ 20V supply range, providing 5V additional headroom above the SFH6711 maximum of 15V. This expanded range offers design flexibility for systems with variable supply conditions.

Frequently Asked Questions (FAQ)

Q: Can HCPL-2201 or HCPL-2211 directly replace SFH6711 in existing designs?

A: Yes, for applications where the 3750Vrms isolation rating is sufficient. The lower isolation voltage is the primary difference. All other critical parameters—output configuration, data rate, propagation delay, package, and operating temperature—are identical. Verify that your application does not require the full 5300Vrms isolation specification before substitution.

Q: What is the difference between HCPL-2201 and HCPL-2211?

A: Both provide 3750Vrms isolation and 5MBd data rate. The primary difference is common mode transient immunity: HCPL-2201 specifies 1kV/µs minimum, while HCPL-2211 specifies 5kV/µs or 10kV/µs. Select HCPL-2211 for applications requiring higher immunity to rapid voltage transitions.

Q: What do the packaging suffixes (-000E, -060E, #060) indicate?

A: These suffixes denote different tape-and-reel or tube packaging configurations used for automated assembly. They do not affect electrical performance. -000E and -060E indicate tube packaging with different reel specifications. #060 also indicates tube packaging. Select based on your assembly equipment compatibility and procurement preferences.

Q: Is the SFH6711 still available?

A: No, the SFH6711 is obsolete. Broadcom HCPL-2201 and HCPL-2211 series parts are active products with substantial inventory availability, making them suitable long-term replacements.

Q: Which substitute should I choose for new designs?

A: For new designs requiring RoHS3 compliance, select HCPL-2201-000E, HCPL-2201-060E, HCPL-2211-000E, or HCPL-2211-060E. For applications with high common mode transient immunity requirements, prioritize HCPL-2211 variants. For standard isolation requirements, HCPL-2201 variants are cost-effective alternatives.

Q: Are there any supply voltage compatibility issues?

A: No. All substitutes support 4.5V ~ 20V supply range, which fully encompasses the SFH6711 range of 4.5V ~ 15V. Existing power supply designs require no modification.

Q: Can I mix different substitute part numbers in the same design?

A: Yes, provided your application requirements are met by each selected part. However, standardizing on a single part number simplifies procurement, inventory management, and design documentation.

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