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SMD24HE-TP Equivalent & Substitute Parts
Part Overview
The SMD24HE-TP is a Schottky diode rated for 40 V DC reverse voltage and 2 A average rectified current, packaged in SOD-123H surface mount configuration. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. The substitute part maintains identical electrical specifications while offering improved availability and active product status.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Technology | Schottky | — |
| Voltage - DC Reverse (Vr) (Max) | 40 | V |
| Current - Average Rectified (Io) | 2 | A |
| Voltage - Forward (Vf) (Max) @ If | 500 mV @ 2 A | — |
| Speed | Fast Recovery ≤ 500ns, > 200mA (Io) | — |
| Current - Reverse Leakage @ Vr | 500 µA @ 40 V | — |
| Mounting Type | Surface Mount | — |
| Operating Temperature - Junction | -55°C to 125°C | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
The SMD24HE-TP has one qualified substitute: SMD24PL-TP. Substitution is valid based on the following matching electrical and mechanical parameters:
- Identical Schottky technology classification
- Identical maximum DC reverse voltage rating (40 V)
- Identical average rectified current rating (2 A)
- Identical forward voltage specification (500 mV @ 2 A)
- Identical fast recovery speed characteristic (≤ 500ns, > 200mA)
- Identical reverse leakage current specification (500 µA @ 40 V)
- Identical surface mount mounting type
- Identical RoHS3 compliance status
- Identical MSL rating (1 - Unlimited)
- Identical base product number (SMD24)
The primary differences are package configuration (SOD-123H versus SOD-123F) and product status (obsolete versus active). The substitute part maintains full electrical equivalence while offering active availability.
Parameter Comparison
| Parameter | SMD24HE-TP | SMD24PL-TP | Match |
|---|---|---|---|
| Manufacturer | Micro Commercial Co | Micro Commercial Co | Yes |
| Category | Diodes, Rectifiers | Diodes, Rectifiers | Yes |
| Technology | Schottky | Schottky | Yes |
| Voltage - DC Reverse (Vr) (Max) | 40 V | 40 V | Yes |
| Current - Average Rectified (Io) | 2 A | 2 A | Yes |
| Voltage - Forward (Vf) (Max) @ If | 500 mV @ 2 A | 500 mV @ 2 A | Yes |
| Speed | Fast Recovery ≤ 500ns, > 200mA (Io) | Fast Recovery ≤ 500ns, > 200mA (Io) | Yes |
| Current - Reverse Leakage @ Vr | 500 µA @ 40 V | 500 µA @ 40 V | Yes |
| Mounting Type | Surface Mount | Surface Mount | Yes |
| Package / Case | SOD-123H | SOD-123F | No |
| Supplier Device Package | SOD-123HE | SOD-123FL | No |
| Operating Temperature - Junction | -55°C to 125°C | -65°C to 125°C | Substitute Exceeds |
| Product Status | Obsolete | Active | Substitute Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Yes |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | Yes |
| ECCN | EAR99 | EAR99 | Yes |
| HTSUS | 8541.10.0080 | 8541.10.0080 | Yes |
Engineering Selection Recommendations
The SMD24PL-TP is the direct electrical equivalent for the obsolete SMD24HE-TP. Selection of the substitute part is supported by:
- Complete electrical parameter equivalence across all critical specifications
- Active product status ensuring ongoing availability and supply chain continuity
- Identical RoHS3 compliance and regulatory classification
- Identical MSL rating eliminating moisture sensitivity handling changes
- Extended operating temperature range (-65°C to 125°C versus -55°C to 125°C) providing additional thermal margin
- Identical ECCN and HTSUS classifications maintaining export and tariff compliance
Package configuration differs between the two parts (SOD-123H versus SOD-123F). PCB layout and footprint compatibility must be verified prior to implementation. Both packages are surface mount configurations within the SOD-123 family and may require footprint adjustment depending on specific board design.
Frequently Asked Questions (FAQ)
Q: Can SMD24PL-TP be used as a direct replacement for SMD24HE-TP in existing designs?
A: Electrical substitution is valid. All electrical parameters are identical. Physical package compatibility (SOD-123H versus SOD-123F) must be confirmed with PCB layout requirements.
Q: What is the primary reason for substitution?
A: The SMD24HE-TP is classified as obsolete. The SMD24PL-TP maintains identical electrical specifications while offering active product status and improved availability.
Q: Are there any compliance or regulatory differences between these parts?
A: No. Both parts carry identical RoHS3 compliance, MSL rating, ECCN classification, and HTSUS coding.
Q: Does the operating temperature range difference affect substitution?
A: The SMD24PL-TP operating temperature range (-65°C to 125°C) exceeds the SMD24HE-TP range (-55°C to 125°C). This provides additional thermal margin and does not restrict substitution.
Q: What is the difference between SOD-123H and SOD-123F packages?
A: Both are surface mount Schottky diode packages within the SOD-123 family. Physical dimensions and footprint geometry differ. PCB design compatibility must be verified for each application.
Q: Are both parts from the same manufacturer?
A: Yes. Both SMD24HE-TP and SMD24PL-TP are manufactured by Micro Commercial Co and share the same base product number (SMD24).
Q: What is the inventory status of each part?
A: SMD24HE-TP (obsolete) has 810 pieces in stock. SMD24PL-TP (active) has 52,800 pieces in stock, providing significantly greater availability.
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