4N35S(TA) Equivalent & Substitute Parts

Part Overview

The 4N35S(TA) is an optoisolator transistor with base output manufactured by Everlight Electronics Co Ltd. This component provides 5000Vrms isolation with a single channel configuration in a 6-SMD surface mount package. The device is classified as Active product status and is ROHS3 compliant. Substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when alternative packaging formats are required for specific manufacturing processes.

Substiute Parts

4N35S(TA)

Everlight Electronics Co LtdIn Stock: 30894N35S(TA) Datasheet

Current PartRFQ

4N35-X007T

Vishay Semiconductor Opto DivisionIn Stock: 48254N35-X007T Datasheet

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4N35-X017

Vishay Semiconductor Opto DivisionIn Stock: 28794N35-X017 Datasheet

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4N35-X017T

Vishay Semiconductor Opto DivisionIn Stock: 163114N35-X017T Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 4N35S(TA) is determined by the following critical parameters:

Core Electrical Requirements:

• Voltage - Isolation: 5000Vrms (mandatory match)
• Number of Channels: 1 (mandatory match)
• Current Transfer Ratio (Min): 100% @ 10mA (mandatory match)
• Output Type: Transistor with Base (mandatory match)
• Input Type: DC (mandatory match)

Mechanical & Environmental Requirements:

• Package / Case: 6-SMD, Gull Wing (mandatory match)
• Mounting Type: Surface Mount (mandatory match)
• RoHS Status: ROHS3 Compliant (mandatory match)
• Moisture Sensitivity Level: 1 (Unlimited) (mandatory match)

Acceptable Variations:

• Voltage - Output (Max): Substitute parts may have lower maximum output voltage (30V vs. 80V) provided the application does not require the higher specification
• Current - Output / Channel: Substitute parts may have lower maximum output current (50mA vs. unspecified) provided the application does not require higher current
• Vce Saturation (Max): Substitute parts may have unspecified saturation voltage provided electrical performance is acceptable
• Operating Temperature Range: Substitute parts may have narrower temperature range (-55°C ~ 100°C vs. -55°C ~ 110°C) provided the application operates within the substitute part's range
• Packaging Format: Tape & Reel (TR) and Tube packaging are interchangeable for component selection purposes
• Turn On / Turn Off Time: Substitute parts with 10µs, 10µs timing are functionally equivalent to 10µs, 9µs

Parameter Comparison

Engineering Selection Recommendations

4N35-X007T (Vishay Semiconductor Opto Division)

This substitute is suitable for applications where the output voltage requirement does not exceed 30V and output current does not exceed 50mA. The part is available in Tape & Reel packaging and maintains all critical isolation and switching characteristics. Operating temperature range is -55°C to 100°C. ROHS3 compliance and MSL 1 rating are maintained. This part is recommended when Tape & Reel packaging is required and supply of the primary part is constrained.

4N35-X017 (Vishay Semiconductor Opto Division)

This substitute is functionally equivalent to 4N35-X007T with identical electrical specifications. The primary distinction is packaging format: 4N35-X017 is supplied in Tube packaging rather than Tape & Reel. This part is suitable for applications where Tube packaging is compatible with manufacturing processes and where output voltage and current specifications do not exceed 30V and 50mA respectively. ROHS3 compliance and MSL 1 rating are maintained.

4N35-X017T (Vishay Semiconductor Opto Division)

This substitute is suitable for applications where the output voltage requirement does not exceed 30V and output current does not exceed 50mA. The part is available in Tape & Reel packaging and maintains all critical isolation and switching characteristics. Operating temperature range is -55°C to 100°C. ROHS3 compliance is maintained. This part is recommended as the primary substitute when supply of the 4N35S(TA) is unavailable and Tape & Reel packaging is required.

Selection Criteria Summary:

All substitute parts maintain the mandatory parameters: 5000Vrms isolation, single channel configuration, 100% current transfer ratio at 10mA, transistor with base output type, 6-SMD Gull Wing package, surface mount mounting, ROHS3 compliance, and MSL 1 rating. Selection between substitutes depends on packaging format preference (Tape & Reel vs. Tube) and confirmation that application requirements do not exceed the lower output voltage (30V) and current (50mA) specifications of the Vishay alternatives.

Frequently Asked Questions (FAQ)

Q: Can 4N35-X017T be used as a direct replacement for 4N35S(TA)?

A: Yes, 4N35-X017T is a direct substitute provided the application does not require output voltage exceeding 30V or output current exceeding 50mA. All critical electrical parameters including isolation voltage, channel count, current transfer ratio, and output type are identical. Both parts use 6-SMD Gull Wing surface mount packages and are ROHS3 compliant.

Q: What is the difference between 4N35-X007T and 4N35-X017?

A: The electrical specifications are identical between these two parts. The difference is packaging format: 4N35-X007T is supplied in Tape & Reel (TR) format while 4N35-X017 is supplied in Tube format. Both are suitable for surface mount assembly. Selection depends on manufacturing process compatibility with the packaging format.

Q: Why does 4N35-X017T have a lower maximum output voltage (30V) compared to 4N35S(TA) (80V)?

A: The output voltage specification is a characteristic of the specific device variant. The 4N35-X017T is rated for 30V maximum output voltage while the 4N35S(TA) is rated for 80V. Substitution is valid only when the application circuit operates within the 30V specification of the substitute part.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (4N35-X007T, 4N35-X017, 4N35-X017T) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the primary part specification.

Q: What is the operating temperature difference between 4N35S(TA) and the Vishay substitutes?

A: The 4N35S(TA) operates from -55°C to 110°C while the Vishay substitutes (4N35-X007T, 4N35-X017, 4N35-X017T) operate from -55°C to 100°C. Substitution is valid when the application operates within the -55°C to 100°C range.

Q: Can I use 4N35-X017 (Tube packaging) in an automated pick-and-place assembly line?

A: Tube packaging is compatible with certain automated assembly equipment. Confirmation with your manufacturing process and equipment specifications is necessary to determine compatibility. If Tape & Reel packaging is required for your assembly process, use 4N35-X007T or 4N35-X017T instead.

Q: Are the switching times equivalent between 4N35S(TA) and substitute parts?

A: The 4N35S(TA) has turn on/turn off times of 10µs and 9µs respectively. The Vishay substitutes have turn on/turn off times of 10µs and 10µs respectively. These timing differences are negligible for most applications and the parts are functionally equivalent in switching performance.

Q: What inventory levels are available for each substitute part?

A: Inventory levels are subject to change. Current availability: 4N35-X007T has 4715 pcs, 4N35-X017 has 2769 pcs, and 4N35-X017T has 16239 pcs in stock. Verify current inventory status with your supplier before finalizing procurement decisions.