6N136VSM Equivalent & Substitute Parts

Part Overview

The 6N136VSM is an 8-pin high-speed optocoupler manufactured by Isocom Components 2004 LTD, designed for applications requiring galvanic isolation up to 5000Vrms. This optoisolator features a transistor output with base connection, single-channel configuration, and surface mount packaging in 8-SMD Gull Wing format. The component is actively produced and widely used in industrial control, power supply, and signal isolation applications. Finding equivalent substitute parts is necessary to ensure supply chain continuity, optimize procurement costs, and maintain design flexibility across multiple sourcing options.

Substiute Parts

6N136VSM

Isocom Components 2004 LTDIn Stock: 10166N136VSM Datasheet

Current PartRFQ

6N136SM

onsemiIn Stock: 58416N136SM Datasheet

Parametric EquivalentRFQ

6N136-320E

Broadcom LimitedIn Stock: 9116N136-320E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 6N136VSM are determined by strict equivalence across the following critical parameters:

• Voltage - Isolation: 5000Vrms (mandatory match)
• Number of Channels: 1 (mandatory match)
• Output Type: Transistor with Base (mandatory match)
• Current Transfer Ratio: 19% (Min) @ 16mA and 50% (Max) @ 16mA (mandatory match)
• Voltage - Output (Max): 20V (mandatory match)
• Current - Output / Channel: 8mA (mandatory match)
• Voltage - Forward (Vf) (Typ): 1.45V (nominal match)
• Current - DC Forward (If) (Max): 25mA (mandatory match)
• Package / Case: 8-SMD, Gull Wing (mandatory match)
• Mounting Type: Surface Mount (mandatory match)

The identified substitute parts meet all critical electrical and mechanical parameters. Variations in turn-on/turn-off timing and forward voltage within specified tolerances do not affect functional equivalence for standard isolation applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—6N136VSM, 6N136SM, and 6N136-320E—are active products with ROHS3 compliance and unlimited moisture sensitivity rating. Selection between these optoisolators should be based on:

6N136VSM (Isocom Components 2004 LTD): Primary choice when Isocom sourcing is preferred. Supports full operating temperature range of -55°C to 100°C. Active product status ensures continued availability.

6N136SM (onsemi): Direct substitute with identical electrical parameters. Operating temperature range is -40°C to 100°C, which is suitable for most industrial applications but does not extend to -55°C. Turn-on/turn-off timing is specified at 250ns and 260ns. Active product status with high inventory availability.

6N136-320E (Broadcom Limited): Direct substitute with full -55°C to 100°C operating temperature range matching the primary part. Forward voltage is specified at 1.5V versus 1.45V for the primary part, representing a minor variation within acceptable tolerance. Turn-on/turn-off timing is specified at 200ns and 600ns. Active product status ensures supply continuity.

All three parts are suitable for direct substitution in applications where the specified electrical and thermal parameters are met.

Frequently Asked Questions (FAQ)

Q: Can 6N136SM be used as a direct replacement for 6N136VSM?

A: Yes, 6N136SM is a parametric equivalent. The primary consideration is the operating temperature range: 6N136SM operates from -40°C to 100°C, while 6N136VSM operates from -55°C to 100°C. If your application requires operation below -40°C, 6N136SM is not suitable. For applications within -40°C to 100°C, 6N136SM is functionally equivalent.

Q: What is the difference between 6N136-320E and 6N136VSM?

A: 6N136-320E is a parametric equivalent with identical isolation voltage, current transfer ratio, output voltage, and output current specifications. The forward voltage is specified at 1.5V compared to 1.45V for 6N136VSM, a difference of 0.05V that falls within normal component tolerance. Both support the full -55°C to 100°C operating temperature range. Turn-on/turn-off timing differs between the two parts but does not affect functional equivalence for standard isolation applications.

Q: Are all three parts in the same package?

A: Yes, all three parts use 8-SMD Gull Wing surface mount packaging. They are mechanically and electrically compatible for PCB assembly without design modifications.

Q: Which substitute part has the best availability?

A: According to current inventory data, 6N136SM (onsemi) has the highest stock level at 5825 pieces. 6N136VSM (Isocom) has 913 pieces, and 6N136-320E (Broadcom) has 805 pieces. Availability may vary by distributor and time.

Q: Do all parts meet RoHS compliance?

A: Yes, all three parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.