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4N36VM Equivalent & Substitute Parts
Part Overview
The 4N36VM is an optoisolator transistor with base output manufactured by onsemi, featuring 4170Vrms isolation voltage in a 6-DIP package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design requirements and production continuity. The 4N36VM provides galvanic isolation with a single-channel transistor output configuration suitable for DC input applications requiring high voltage isolation.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 4N36VM |
| Manufacturer | onsemi |
| Category | Optoisolators |
| Product Status | Obsolete |
| Number of Channels | 1 |
| Voltage - Isolation | 4170Vrms |
| Current Transfer Ratio (Min) | 100% @ 10mA |
| Output Type | Transistor with Base |
| Voltage - Output (Max) | 30V |
| Vce Saturation (Max) | 300mV |
| Operating Temperature | -40°C ~ 100°C |
| Package / Case | 6-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole |
Substitute Part Grouping Explanation
Substitution for the 4N36VM is determined by the following critical parameters:
- Isolation Voltage: Minimum 4170Vrms required for equivalent functionality
- Output Configuration: Transistor with base output mandatory
- Number of Channels: Single channel only
- Package Type: 6-DIP through-hole mounting
- Current Transfer Ratio: Minimum 100% @ 10mA
- Input Type: DC input
- Vce Saturation: Maximum 300mV
The substitute parts identified meet or exceed these core electrical and mechanical requirements. Parts with higher isolation voltage ratings (5000Vrms) provide enhanced performance margin. Package dimensions and pin configurations remain compatible with 6-DIP footprints.
Parameter Comparison
| Parameter | 4N36VM (onsemi) | 4N36M (Fairchild) | 4N36-X000 (Vishay) |
|---|---|---|---|
| Product Status | Obsolete | Active | Active |
| Voltage - Isolation | 4170Vrms | 5000Vrms | 5000Vrms |
| Number of Channels | 1 | 1 | 1 |
| Current Transfer Ratio (Min) | 100% @ 10mA | 100% @ 10mA | 100% @ 10mA |
| Output Type | Transistor with Base | Transistor with Base | Transistor with Base |
| Voltage - Output (Max) | 30V | 80V | 30V |
| Vce Saturation (Max) | 300mV | 300mV | Not specified |
| Turn On / Turn Off Time (Typ) | 2µs, 2µs | 10µs, 9µs | 10µs, 10µs |
| Operating Temperature | -40°C ~ 100°C | -55°C ~ 110°C | -55°C ~ 100°C |
| Package / Case | 6-DIP (0.300", 7.62mm) | 6-DIP (0.400", 10.16mm) | 6-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Current - DC Forward (If) (Max) | 60 mA | 60 mA | 60 mA |
| Voltage - Forward (Vf) (Typ) | 1.18V | 1.2V | 1.2V |
Engineering Selection Recommendations
4N36M (Fairchild Semiconductor): Active product status with enhanced isolation voltage (5000Vrms) and extended operating temperature range (-55°C ~ 110°C). Package dimension difference (0.400" vs 0.300") requires PCB layout verification. Higher maximum output voltage (80V) provides additional design flexibility. Suitable for applications requiring extended temperature performance and higher output voltage capability.
4N36-X000 (Vishay Semiconductor Opto Division): Active product status with ROHS3 compliance and 5000Vrms isolation voltage. Package dimensions match the original 4N36VM (0.300", 7.62mm), minimizing PCB redesign requirements. Specified current output of 50mA provides defined load capability. Recommended for direct replacement applications requiring minimal design modification.
Both substitute parts maintain the critical single-channel transistor-with-base output configuration and meet or exceed the minimum current transfer ratio specification of 100% @ 10mA.
Frequently Asked Questions (FAQ)
Q: Can 4N36M be used as a direct replacement for 4N36VM? A: Electrical compatibility is confirmed. The 4N36M meets all core substitution criteria including isolation voltage, output type, and current transfer ratio. However, the package dimension difference (0.400" vs 0.300") requires PCB layout verification before implementation.
Q: What is the primary advantage of 4N36-X000 over 4N36M? A: The 4N36-X000 maintains identical package dimensions to the original 4N36VM (0.300", 7.62mm), eliminating PCB redesign requirements. Both parts offer 5000Vrms isolation voltage, but the 4N36-X000 provides a drop-in replacement option.
Q: Are there compliance differences between the substitute parts? A: The 4N36-X000 carries ROHS3 compliance certification. Both substitute parts are classified as EAR99 for export control purposes. Compliance requirements for your specific application should be verified against your design standards.
Q: How do switching speeds compare between the original and substitutes? A: The 4N36VM specifies 2µs turn-on and turn-off times. Both substitute parts specify 9-10µs switching times, representing slower response. Applications with critical timing requirements should evaluate this parameter against circuit performance needs.
Q: What is the significance of the higher isolation voltage in substitute parts? A: The 4N36M and 4N36-X000 provide 5000Vrms isolation compared to the 4N36VM's 4170Vrms. This represents a performance margin increase and does not create compatibility issues in applications designed for the lower voltage rating.
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