SFH6701-X009 Equivalent & Substitute Parts

Part Overview

The SFH6701-X009 is a logic output optoisolator manufactured by Vishay Semiconductor Opto Division, designed for high-speed digital isolation applications. This 8-SMD surface mount device provides 5300Vrms isolation with push-pull totem pole output configuration, supporting data rates up to 5MBd and common mode transient immunity of 1kV/µs. The part is currently obsolete, necessitating identification of functionally equivalent alternatives from active product lines to maintain design continuity and ensure long-term supply availability.

Key Parameters

Parameter	SFH6701-X009
Manufacturer	Vishay Semiconductor Opto Division
Category	Optoisolators
Number of Channels	1
Voltage - Isolation	5300Vrms
Common Mode Transient Immunity (Min)	1kV/µs
Input Type	DC
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
Mounting Type	Surface Mount
Package / Case	8-SMD, Gull Wing
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the SFH6701-X009 is determined by the following critical parameters:

Primary Substitution Criteria:

Number of Channels: 1 (single channel isolation required)
Output Type: Push-Pull, Totem Pole (logic-level output configuration)
Input Type: DC (digital input signal)
Data Rate: 5MBd (maximum operating speed)
Common Mode Transient Immunity: Minimum 1kV/µs
Voltage - Isolation: Minimum 5300Vrms (or lower if application permits)
Current - Output / Channel: 25 mA (output drive capability)
Operating Temperature Range: -40°C ~ 85°C
Mounting Type: Surface Mount
Package / Case: 8-SMD, Gull Wing

Substitution Logic: Broadcom Limited HCPL series optoisolators meet the functional requirements of the SFH6701-X009. The HCNW2201-500E provides the highest isolation voltage (5000Vrms), closely matching the original specification. The HCPL-2201 and HCPL-2211 series variants offer lower isolation ratings (3750Vrms) but maintain all other critical electrical parameters including data rate, output configuration, and CMTI performance. The HCPL-2211 series provides enhanced CMTI performance (5kV/µs, 10kV/µs) compared to the base HCPL-2201 series (1kV/µs), offering additional design margin for high-speed switching environments.

Parameter Comparison

Parameter	SFH6701-X009	HCNW2201-500E	HCPL-2201-300E	HCPL-2201-360E	HCPL-2201-500E	HCPL-2201-560E	HCPL-2211-300E	HCPL-2211-360E
Manufacturer	Vishay	Broadcom	Broadcom	Broadcom	Broadcom	Broadcom	Broadcom	Broadcom
Number of Channels	1	1	1	1	1	1	1	1
Voltage - Isolation	5300Vrms	5000Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms
Common Mode Transient Immunity (Min)	1kV/µs	1kV/µs	1kV/µs	1kV/µs	1kV/µs	1kV/µs	5kV/µs, 10kV/µs	5kV/µs, 10kV/µs
Input Type	DC	DC	DC	DC	DC	DC	DC	DC
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	180ns / 160ns	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
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	8-SMD, Gull Wing	8-SMD, Gull Wing	8-SMD, Gull Wing	8-SMD, Gull Wing	8-SMD, Gull Wing	8-SMD, Gull Wing	8-SMD, Gull Wing	8-SMD, Gull Wing
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: HCNW2201-500E

The HCNW2201-500E is the closest functional equivalent to the SFH6701-X009, providing 5000Vrms isolation voltage that closely matches the original 5300Vrms specification. This part is in active production status with ROHS3 compliance, ensuring long-term availability and regulatory alignment. The HCNW2201-500E maintains all critical electrical parameters including 1kV/µs CMTI, 5MBd data rate, 25mA output current, and identical operating temperature range. Supply voltage range extends to 20V, providing additional design flexibility compared to the original 15V maximum.

Secondary Recommendation: HCPL-2211-300E or HCPL-2211-360E

For applications requiring enhanced common mode transient immunity, the HCPL-2211 series offers 5kV/µs and 10kV/µs CMTI performance, providing superior noise immunity in high-speed switching environments. Both variants are in active production with ROHS3 compliance. The isolation voltage is reduced to 3750Vrms, which is acceptable for applications not requiring the full 5300Vrms isolation margin. Propagation delay characteristics remain identical to the original part at 300ns maximum for both rising and falling edges.

Tertiary Recommendation: HCPL-2201 Series (300E, 360E, 500E, 560E)

The HCPL-2201 series provides direct functional substitution with 3750Vrms isolation, maintaining all other critical parameters including 1kV/µs CMTI, 5MBd data rate, and 300ns propagation delay. All variants listed are in active production with ROHS3 compliance. Selection among 300E, 360E, 500E, and 560E variants is determined by packaging requirements (tube or tape & reel) and inventory availability rather than electrical performance differences.

Frequently Asked Questions (FAQ)

Q: Can the HCPL-2201 series be used as a direct replacement for the SFH6701-X009?

A: Yes, the HCPL-2201 series provides functional equivalence for most applications. The primary difference is reduced isolation voltage (3750Vrms versus 5300Vrms). If your application requires the full 5300Vrms isolation margin, use the HCNW2201-500E instead. All other electrical parameters including data rate, output configuration, CMTI, and operating temperature range are identical.

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

A: Both series provide identical isolation voltage (3750Vrms), data rate (5MBd), and propagation delay (300ns). The HCPL-2211 series offers enhanced common mode transient immunity at 5kV/µs and 10kV/µs compared to the HCPL-2201 series at 1kV/µs. Select HCPL-2211 for applications with high-speed switching noise or dV/dt transients exceeding 1kV/µs.

Q: Are the packaging variants (300E, 360E, 500E, 560E) electrically equivalent?

A: Yes, all HCPL-2201 and HCPL-2211 variants with the same base part number are electrically identical. The suffix designates packaging format: tube or tape & reel. Selection is based on procurement and assembly requirements, not electrical performance.

Q: Does the extended supply voltage range (4.5V to 20V) of Broadcom parts affect compatibility?

A: No, the extended range is backward compatible. If your design operates within the original SFH6701-X009 range of 4.5V to 15V, the Broadcom substitutes will function identically. The higher maximum rating provides additional design margin for future applications.

Q: Is the HCNW2201-500E pin-compatible with the SFH6701-X009?

A: Both parts use 8-SMD gull wing packages with identical pinout configuration for single-channel optoisolators. PCB layout modifications are not required for direct substitution.

Q: What is the impact of reduced propagation delay in the HCNW2201-500E?

A: The HCNW2201-500E specifies 180ns/160ns propagation delay compared to 300ns/300ns for the original part. This represents faster signal transmission, which is beneficial for timing-critical applications. No circuit modifications are required; the faster response is a performance improvement.

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