6N135VSM Equivalent & Substitute Parts

Part Overview

The 6N135VSM is a high-speed optocoupler manufactured by Isocom Components 2004 LTD, designed for applications requiring galvanic isolation between input and output circuits. This 8-pin surface mount device features a single channel with transistor output and base connection, providing 5000Vrms isolation voltage. The component is currently in active production status with 921 pieces available in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

6N135VSM

Isocom Components 2004 LTDIn Stock: 9936N135VSM Datasheet

Current PartRFQ

6N135SM

Fairchild SemiconductorIn Stock: 41566N135SM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 6N135VSM is determined by strict equivalence across the following critical parameters:

• Isolation Voltage: 5000Vrms minimum
• Number of Channels: 1 channel configuration
• Output Type: Transistor with Base
• Current Transfer Ratio Range: 7% to 50% @ 16mA
• Maximum Output Voltage: 20V
• Output Current per Channel: 8mA
• Input Forward Voltage: 1.45V typical
• Maximum Forward Current: 25mA
• Package Configuration: 8-SMD, Gull Wing surface mount
• Input Type: DC

The 6N135SM from Fairchild Semiconductor meets all specified electrical and mechanical parameters and qualifies as a parametric equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the 6N135VSM and 6N135SM are active production components with equivalent electrical specifications and identical package configurations. Selection between these parts should be based on:

Availability and Lead Time: The 6N135SM (Fairchild Semiconductor) has higher inventory availability at 4100 pieces compared to 921 pieces for the 6N135VSM.

Operating Temperature Range: The 6N135VSM supports -55°C to 100°C operation, while the 6N135SM operates from -40°C to 100°C. Applications requiring operation below -40°C must use the 6N135VSM.

Compliance and Certifications: Both parts maintain ROHS3 compliance and EAR99 export classification. The 6N135VSM carries REACH Unaffected status; equivalent REACH information for the 6N135SM should be verified with the supplier.

Packaging Format: The 6N135VSM is supplied in tube packaging, while the 6N135SM is supplied in bulk packaging. Packaging selection depends on assembly process requirements and inventory management practices.

Frequently Asked Questions (FAQ)

Q: Can the 6N135SM directly replace the 6N135VSM in existing designs?

A: Yes, provided the operating temperature range of -40°C to 100°C is acceptable for the application. All electrical parameters, isolation voltage, output characteristics, and package configuration are identical.

Q: What is the significance of the Current Transfer Ratio range (7% to 50%)?

A: The Current Transfer Ratio defines the relationship between input LED current and output transistor current. Both parts maintain the same 7% to 50% range at 16mA input, ensuring equivalent optical coupling efficiency across the specified operating window.

Q: Are there differences in turn-on and turn-off characteristics between these parts?

A: The 6N135SM specifies turn-on and turn-off times of 230ns and 450ns respectively. The 6N135VSM does not provide these specifications in the available data. For applications with strict timing requirements, the 6N135SM specifications should be verified against circuit requirements.

Q: Does the 8-SMD Gull Wing package allow for interchangeable PCB assembly?

A: Yes. Both parts use identical 8-SMD Gull Wing surface mount packaging, allowing direct PCB footprint compatibility without layout modifications.

Q: What compliance certifications apply to both parts?

A: Both the 6N135VSM and 6N135SM are ROHS3 compliant and classified as EAR99 for export purposes. The 6N135VSM is REACH Unaffected; REACH compliance status for the 6N135SM should be confirmed with Fairchild Semiconductor.