6N136-V Optoisolator Equivalent & Substitute Parts

Part Overview

The 6N136-V is an optoisolator transistor with base output manufactured by Everlight Electronics Co Ltd. This component provides 5000Vrms isolation in a single-channel configuration with transistor output and integrated base connection. The device is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts are necessary when the 6N136-V experiences supply constraints, extended lead times, or when alternative manufacturers offer equivalent electrical and mechanical performance within the same package specification. The substitute parts listed maintain functional compatibility through matching isolation voltage, current transfer ratio, output type, and 8-DIP package configuration.

Substiute Parts

6N136-V

Everlight Electronics Co LtdIn Stock: 6806N136-V Datasheet

Current PartRFQ

6N136

onsemiIn Stock: 501706N136 Datasheet

Parametric EquivalentRFQ

QT4502

QT Brightek (QTB)In Stock: 999QT4502 Datasheet

Parametric EquivalentRFQ

QT4503

QT Brightek (QTB)In Stock: 962QT4503 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 6N136-V is determined by the following critical parameters:

Primary Substitution Criteria:

• Number of Channels: 1 (single channel required)
• Output Type: Transistor with Base (base connection mandatory)
• Package / Case: 8-DIP (0.300", 7.62mm) (through-hole mounting)
• Voltage - Isolation: 5000Vrms (minimum isolation requirement)
• Current Transfer Ratio: 19% to 50% @ 16mA (operating range)
• Voltage - Output (Max): 20V (maximum output voltage)
• Current - Output / Channel: 8mA (output current capacity)
• Input Type: DC (input signal type)
• Operating Temperature: -55°C ~ 100°C (temperature range)

Substitute Parts Classification:

Group 1 - Full Parametric Equivalents (5000Vrms Isolation):

• QT4502 (QT Brightek)
• QT4503 (QT Brightek)

These parts match all critical electrical parameters and package specifications of the 6N136-V.

Group 2 - Reduced Isolation Voltage (2500Vrms Isolation):

• 6N136 (onsemi)

This part shares identical electrical characteristics except for isolation voltage rating (2500Vrms vs. 5000Vrms). Substitution is valid only for applications where 2500Vrms isolation meets system requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Recommended):

QT4502 and QT4503 from QT Brightek are full parametric equivalents to the 6N136-V. Both parts maintain 5000Vrms isolation voltage, identical current transfer ratio specifications, and matching package configuration. Both are classified as Active product status with ROHS3 compliance. These substitutes are suitable for direct replacement in applications requiring 5000Vrms isolation performance.

Secondary Substitute (Conditional):

The 6N136 from onsemi is classified as Obsolete product status. While it maintains electrical compatibility in all parameters except isolation voltage (2500Vrms), its obsolete classification limits its suitability for new designs or long-term supply assurance. This part is acceptable only for applications where 2500Vrms isolation voltage meets system requirements and where existing inventory or legacy system support justifies its use.

Compliance Considerations:

All recommended substitutes (QT4502, QT4503) maintain ROHS3 compliance and unlimited moisture sensitivity rating, matching the 6N136-V specifications. The onsemi 6N136 does not specify RoHS status in the provided data.

Frequently Asked Questions (FAQ)

Q: Can QT4502 or QT4503 be used as direct replacements for 6N136-V?

A: Yes. QT4502 and QT4503 are full parametric equivalents. Both maintain identical isolation voltage (5000Vrms), current transfer ratio (19% to 50% @ 16mA), output type (transistor with base), and 8-DIP package configuration. Pin-to-pin compatibility is maintained for through-hole mounting applications.

Q: What is the key difference between 6N136-V and the onsemi 6N136?

A: The primary difference is isolation voltage. The 6N136-V provides 5000Vrms isolation, while the onsemi 6N136 provides 2500Vrms isolation. All other electrical parameters are identical. Additionally, the onsemi 6N136 is classified as Obsolete, whereas the 6N136-V is Active.

Q: Can the onsemi 6N136 be used in place of 6N136-V?

A: Substitution is valid only if the application circuit design requires 2500Vrms isolation or less. If the system design specifies 5000Vrms isolation as a minimum requirement, the onsemi 6N136 is not suitable. The Obsolete product status also presents supply and long-term availability concerns.

Q: Are there timing differences between the substitute parts?

A: Minor timing variations exist. The 6N136-V specifies turn-on time of 350ns and turn-off time of 300ns. QT4502 and QT4503 specify both turn-on and turn-off times at 350ns. The onsemi 6N136 specifies turn-on time of 450ns and turn-off time of 500ns. These differences are within the optoisolator transistor class and do not affect functional compatibility in standard applications.

Q: Do all substitute parts support the same operating temperature range?

A: Yes. All listed substitute parts (QT4502, QT4503, and onsemi 6N136) support the identical operating temperature range of -55°C to 100°C.

Q: What packaging format is used for QT4502 and QT4503?

A: QT4502 and QT4503 are supplied in Tube packaging. The 6N136-V does not specify packaging format in the provided data. Both QT parts use the same 8-DIP (0.300", 7.62mm) through-hole package case, ensuring mechanical compatibility.

Q: Are all substitute parts RoHS compliant?

A: QT4502 and QT4503 are ROHS3 compliant, matching the 6N136-V specification. The onsemi 6N136 does not specify RoHS status in the provided data.