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HCPL-4534#300 Equivalent & Substitute Parts
Part Overview
The HCPL-4534#300 is an optoisolator with transistor output manufactured by Broadcom Limited. This component provides 3750Vrms isolation across 2 channels in an 8-SMD surface mount package. The part is currently active in production with 1146 units in stock. Alternative part numbers may be required due to supply availability, regional sourcing preferences, or specific compliance requirements in target applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Broadcom Limited |
| Category | Optoisolators |
| Number of Channels | 2 |
| Voltage - Isolation | 3750Vrms |
| Current Transfer Ratio (Min) | 15% @ 16mA |
| Current Transfer Ratio (Max) | 50% @ 16mA |
| Turn On / Turn Off Time (Typ) | 200ns, 600ns |
| Output Type | Transistor |
| Voltage - Output (Max) | 20V |
| Current - Output / Channel | 8mA |
| Voltage - Forward (Vf) (Typ) | 1.5V |
| Current - DC Forward (If) (Max) | 25mA |
| Operating Temperature | -55°C ~ 100°C |
| Mounting Type | Surface Mount |
| Package / Case | 8-SMD, Gull Wing |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the HCPL-4534#300 is determined by strict equivalence across the following critical parameters:
- Number of channels: 2
- Isolation voltage: 3750Vrms
- Output type: Transistor
- Current transfer ratio range: 15% to 50% @ 16mA
- Switching time characteristics: 200ns turn-on, 600ns turn-off
- Maximum output voltage: 20V
- Output current per channel: 8mA
- Package type: 8-SMD, Gull Wing surface mount
- Operating temperature range: -55°C to 100°C
The HCPL-4534-300E meets all these parameters and qualifies as a direct substitute. Both parts share the same base product number (HCPL-4534) and are manufactured by Broadcom Limited.
Parameter Comparison
| Parameter | HCPL-4534#300 | HCPL-4534-300E | Match |
|---|---|---|---|
| Manufacturer | Broadcom Limited | Broadcom Limited | Yes |
| Number of Channels | 2 | 2 | Yes |
| Voltage - Isolation | 3750Vrms | 3750Vrms | Yes |
| Current Transfer Ratio (Min) | 15% @ 16mA | 15% @ 16mA | Yes |
| Current Transfer Ratio (Max) | 50% @ 16mA | 50% @ 16mA | Yes |
| Turn On / Turn Off Time (Typ) | 200ns, 600ns | 200ns, 600ns | Yes |
| Output Type | Transistor | Transistor | Yes |
| Voltage - Output (Max) | 20V | 20V | Yes |
| Current - Output / Channel | 8mA | 8mA | Yes |
| Voltage - Forward (Vf) (Typ) | 1.5V | 1.5V | Yes |
| Current - DC Forward (If) (Max) | 25mA | 25mA | Yes |
| Operating Temperature | -55°C ~ 100°C | -55°C ~ 100°C | Yes |
| Mounting Type | Surface Mount | Surface Mount | Yes |
| Package / Case | 8-SMD, Gull Wing | 8-SMD, Gull Wing | Yes |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | Yes |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant | Different |
| Product Status | Active | Active | Yes |
Engineering Selection Recommendations
Both HCPL-4534#300 and HCPL-4534-300E are active products from Broadcom Limited with identical electrical and mechanical specifications. The primary distinction is RoHS compliance status:
- HCPL-4534#300: RoHS non-compliant
- HCPL-4534-300E: ROHS3 compliant
Selection between these parts depends on application requirements. Applications subject to RoHS3 regulations or customer specifications requiring RoHS compliance must use HCPL-4534-300E. Applications without RoHS compliance mandates may use either part. Both parts carry REACH Unaffected status and EAR99 export classification.
Frequently Asked Questions (FAQ)
Q: Can HCPL-4534-300E replace HCPL-4534#300 in existing designs?
A: Yes. All electrical parameters, switching characteristics, isolation voltage, channel count, output current ratings, and package specifications are identical. Direct substitution is possible without circuit modification.
Q: What is the difference between HCPL-4534#300 and HCPL-4534-300E?
A: The parts are electrically and mechanically equivalent. The HCPL-4534-300E meets ROHS3 compliance requirements, while HCPL-4534#300 does not. Both are manufactured by Broadcom Limited and share the same base product number.
Q: Are there any package or pinout differences?
A: No. Both parts use the 8-SMD, Gull Wing surface mount package with identical pinout and mechanical dimensions.
Q: Which part should I specify for new designs?
A: Specify HCPL-4534-300E for new designs unless RoHS compliance is not a requirement. HCPL-4534-300E provides the same performance with current regulatory compliance.
Q: What is the moisture sensitivity level for these parts?
A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.
Q: Are both parts currently in production?
A: Yes. Both HCPL-4534#300 and HCPL-4534-300E are active products with current inventory availability.
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