SFH6700 Equivalent & Substitute Parts

Part Overview

The SFH6700 is a logic output optoisolator manufactured by Vishay Semiconductor Opto Division, designed for high-voltage isolation applications requiring 5.3kV isolation rating and tri-state output capability. This component operates at 5MBd data rate with 1kV/µs common mode transient immunity in an 8-DIP through-hole package.

The SFH6700 is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and system upgrades.

Substiute Parts

SFH6700

Vishay Semiconductor Opto DivisionIn Stock: 2565SFH6700 Datasheet

Current PartRFQ

EL2200

Everlight Electronics Co LtdIn Stock: 902EL2200 Datasheet

MFR RecommendedRFQ

HCPL-2200

Broadcom LimitedIn Stock: 1380HCPL-2200 Datasheet

MFR RecommendedRFQ

HCPL-2219-000E

Broadcom LimitedIn Stock: 2153HCPL-2219-000E Datasheet

MFR RecommendedRFQ

HCPL-2219-060E

Broadcom LimitedIn Stock: 1018HCPL-2219-060E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SFH6700 is determined by the following critical parameters:

• Package Compatibility: All substitute parts must use 8-DIP (0.300", 7.62mm) through-hole packaging to ensure direct PCB compatibility
• Output Configuration: Tri-state output type is mandatory for functional equivalence
• Single Channel: One isolated channel required
• Isolation Voltage: Minimum 3750Vrms acceptable; higher ratings provide enhanced margin
• Common Mode Transient Immunity: Minimum 1kV/µs required; higher ratings acceptable
• Data Rate: 2.5MBd or higher acceptable for this application class
• Operating Temperature Range: -40°C ~ 85°C minimum required
• Supply Voltage Compatibility: Overlap with 4.5V ~ 15V range required

The following parts meet these substitution criteria: EL2200 (Everlight Electronics), HCPL-2200 (Broadcom), HCPL-2219-000E (Broadcom), and HCPL-2219-060E (Broadcom).

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: EL2200

The EL2200 from Everlight Electronics is the closest functional equivalent to the SFH6700. It maintains 5MBd data rate matching the original specification, provides 5000Vrms isolation voltage within acceptable margin of the original 5300Vrms rating, and carries ROHS3 compliance. The EL2200 is in active production status with 892 units in stock.

Secondary Substitutes: HCPL-2219-000E and HCPL-2219-060E

Both HCPL-2219 variants from Broadcom are functionally compatible alternatives. These parts feature enhanced common mode transient immunity at 2.5kV/µs compared to the original 1kV/µs specification, providing superior noise immunity in high-speed switching environments. Both variants are ROHS3 compliant and in active production. The HCPL-2219-000E has 2082 units in stock, while HCPL-2219-060E has 937 units available. The primary trade-off is reduced data rate (2.5MBd versus 5MBd) and lower isolation voltage (3750Vrms versus 5300Vrms).

Alternative Substitute: HCPL-2200

The HCPL-2200 from Broadcom provides functional tri-state isolation with matching propagation delay and output current specifications. However, this part is RoHS non-compliant and carries lower isolation voltage (3750Vrms) and data rate (2.5MBd) compared to the original SFH6700. The HCPL-2200 is suitable only for applications where RoHS compliance is not required. 1303 units are in stock.

Frequently Asked Questions (FAQ)

Q: Can the EL2200 directly replace the SFH6700 in existing designs?

A: Yes. The EL2200 maintains identical package, pinout, output type, and propagation delay specifications. The 5000Vrms isolation rating provides adequate margin for applications originally designed for 5300Vrms. Both parts operate across the same temperature range and support the same supply voltage window.

Q: What is the primary difference between EL2200 and HCPL-2219 variants?

A: The EL2200 preserves the original 5MBd data rate and 5000Vrms isolation voltage. The HCPL-2219 variants operate at 2.5MBd with 3750Vrms isolation but offer enhanced common mode transient immunity (2.5kV/µs versus 1kV/µs). Selection depends on whether maximum data rate or noise immunity is the priority for the application.

Q: Are all substitute parts available in the same packaging?

A: Yes. All substitute parts use 8-DIP (0.300", 7.62mm) through-hole packaging, ensuring direct PCB compatibility without layout modifications.

Q: Which substitute part has the best compliance status?

A: EL2200, HCPL-2219-000E, and HCPL-2219-060E are all ROHS3 compliant. The HCPL-2200 is RoHS non-compliant and should be avoided in applications requiring environmental compliance certification.

Q: What is the impact of lower isolation voltage in HCPL-2219 variants?

A: The 3750Vrms rating in HCPL-2219 parts is 29% lower than the original SFH6700 specification. This is acceptable for applications where the design isolation margin permits. Applications requiring the full 5300Vrms isolation should use the EL2200 instead.

Q: Can HCPL-2200 be used as a substitute?

A: HCPL-2200 is functionally compatible but carries RoHS non-compliance status. Use only in applications where RoHS certification is not required. The lower data rate (2.5MBd) and isolation voltage (3750Vrms) may also be limiting factors depending on system requirements.