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HCPL-270L Equivalent & Substitute Parts
Part Overview
The HCPL-270L is an optoisolator with Darlington output manufactured by Broadcom Limited. This component provides galvanic isolation up to 3750Vrms with a single channel configuration in an 8-DIP through-hole package. The device is currently active in production and widely used in industrial control, power supply, and motor drive applications where electrical isolation is required between logic and high-voltage circuits.
Identifying equivalent and substitute parts is necessary when the primary part number becomes unavailable, when supply chain constraints occur, or when design revisions require components with improved compliance certifications or enhanced inventory availability.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Broadcom Limited |
| Category | Optoisolators |
| Number of Channels | 1 |
| Voltage - Isolation | 3750Vrms |
| Current Transfer Ratio (Min) | 300% @ 1.6mA |
| Current Transfer Ratio (Max) | 2600% @ 1.6mA |
| Output Type | Darlington |
| Voltage - Output (Max) | 7V |
| Current - Output / Channel | 60mA |
| Turn On / Turn Off Time (Typ) | 25µs, 50µs |
| Voltage - Forward (Vf) (Typ) | 1.5V |
| Current - DC Forward (If) (Max) | 20mA |
| Operating Temperature | 0°C ~ 70°C |
| Package / Case | 8-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole |
Substitute Part Grouping Explanation
Substitution of the HCPL-270L is determined by strict equivalence across the following critical parameters:
- Isolation voltage: 3750Vrms
- Number of channels: 1
- Output configuration: Darlington
- Current transfer ratio range: 300% to 2600% @ 1.6mA
- Maximum output current: 60mA per channel
- Switching times: 25µs turn-on, 50µs turn-off
- Package type: 8-DIP through-hole
- Input type: DC
- Operating temperature range: 0°C to 70°C
The substitute part HCPL-270L-000E meets all these parameters identically. Both parts are manufactured by Broadcom Limited and share the same base product number (HCPL-270), confirming functional and mechanical compatibility.
Parameter Comparison
| Parameter | HCPL-270L | HCPL-270L-000E |
|---|---|---|
| Manufacturer | Broadcom Limited | Broadcom Limited |
| Number of Channels | 1 | 1 |
| Voltage - Isolation | 3750Vrms | 3750Vrms |
| Current Transfer Ratio (Min) | 300% @ 1.6mA | 300% @ 1.6mA |
| Current Transfer Ratio (Max) | 2600% @ 1.6mA | 2600% @ 1.6mA |
| Output Type | Darlington | Darlington |
| Voltage - Output (Max) | 7V | 7V |
| Current - Output / Channel | 60mA | 60mA |
| Turn On / Turn Off Time (Typ) | 25µs, 50µs | 25µs, 50µs |
| Voltage - Forward (Vf) (Typ) | 1.5V | 1.5V |
| Current - DC Forward (If) (Max) | 20mA | 20mA |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C |
| Package / Case | 8-DIP (0.300", 7.62mm) | 8-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole | Through Hole |
Engineering Selection Recommendations
The HCPL-270L and HCPL-270L-000E are parametrically identical optoisolators. Selection between these part numbers should be based on the following factors:
RoHS Compliance: The HCPL-270L is RoHS non-compliant, while the HCPL-270L-000E is ROHS3 compliant. For applications subject to RoHS regulations or customer requirements mandating RoHS compliance, the HCPL-270L-000E is the appropriate selection.
Inventory Availability: The HCPL-270L-000E maintains higher inventory levels (6022 pcs) compared to the HCPL-270L (997 pcs), providing improved supply chain reliability for high-volume production or long-term availability assurance.
Product Status: Both parts maintain active production status with Broadcom Limited, ensuring continued availability and technical support.
Regulatory Certifications: Both parts carry identical REACH and ECCN classifications, with no differentiation in export control or chemical compliance requirements.
Frequently Asked Questions (FAQ)
Q: Can HCPL-270L-000E be used as a direct replacement for HCPL-270L?
A: Yes. Both parts are electrically and mechanically identical across all specified parameters. The HCPL-270L-000E is a direct substitute with identical isolation voltage, current transfer ratio, output characteristics, switching times, and package configuration.
Q: What is the difference between HCPL-270L and HCPL-270L-000E?
A: The primary difference is RoHS compliance status. The HCPL-270L-000E is ROHS3 compliant, while the HCPL-270L is RoHS non-compliant. All electrical and mechanical specifications are identical.
Q: Are both parts available in the same packaging?
A: Yes. Both the HCPL-270L and HCPL-270L-000E are supplied in 8-DIP through-hole packages with identical physical dimensions (0.300", 7.62mm).
Q: Which part should be selected for new designs?
A: For new designs, the HCPL-270L-000E is recommended due to ROHS3 compliance and higher inventory availability, ensuring regulatory alignment and supply chain continuity.
Q: Are there any performance differences between these parts?
A: No. Both parts deliver identical performance across all specified electrical parameters, including isolation voltage, current transfer ratio, output current, and switching characteristics.
Q: Can these parts be used interchangeably on existing PCBs?
A: Yes. The identical 8-DIP package configuration and pin assignment allow direct PCB substitution without layout modifications.
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