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P6SMB180A Equivalent & Substitute Parts
Part Overview
The P6SMB180A is an active Transient Voltage Suppressor (TVS) diode manufactured by Taiwan Semiconductor Corporation. This unidirectional zener diode is designed for general-purpose transient voltage suppression applications in surface-mount configurations. The device operates across a junction temperature range of -55°C to 150°C and is packaged in the DO-214AA (SMB) form factor for automated assembly processes.
Substitute parts are identified to provide alternative sourcing options when the primary manufacturer part becomes unavailable or when inventory constraints require component alternatives that maintain equivalent electrical and mechanical performance characteristics.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 154 | V |
| Voltage - Breakdown (Min) | 171 | V |
| Voltage - Clamping (Max) @ Ipp | 246 | V |
| Current - Peak Pulse (10/1000µs) | 2.5 | A |
| Power - Peak Pulse | 600 | W |
| Operating Temperature Range | -55 to 150 | °C (TJ) |
| Package / Case | DO-214AA, SMB | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
Substitute Part Grouping Explanation
Substitution of the P6SMB180A is permissible with the P6SMB180A_R1_00001 (manufactured by Panjit International Inc.) based on the following equivalence criteria:
Electrical Parameters (Identical):
- Voltage - Reverse Standoff (Typ): 154V
- Voltage - Breakdown (Min): 171V
- Voltage - Clamping (Max) @ Ipp: 246V
- Power - Peak Pulse: 600W
- Operating Temperature Range: -55°C to 150°C (TJ)
Mechanical Parameters (Identical):
- Package / Case: DO-214AA, SMB
- Mounting Type: Surface Mount
- Unidirectional Channels: 1
- Type: Zener
Minor Variation (Within Tolerance):
- Current - Peak Pulse (10/1000µs): 2.4A (substitute) versus 2.5A (main part)
Compliance Parameters (Identical):
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level (MSL): 1 (Unlimited)
- REACH Status: REACH Unaffected
Both parts share the same base product number (P6SMB180) and series designation (P6SMB), confirming functional equivalence within the TVS diode category.
Parameter Comparison
| Parameter | P6SMB180A (Taiwan Semiconductor) | P6SMB180A_R1_00001 (Panjit International) | Equivalence |
|---|---|---|---|
| Voltage - Reverse Standoff (Typ) | 154V | 154V | Identical |
| Voltage - Breakdown (Min) | 171V | 171V | Identical |
| Voltage - Clamping (Max) @ Ipp | 246V | 246V | Identical |
| Current - Peak Pulse (10/1000µs) | 2.5A | 2.4A | Within Tolerance |
| Power - Peak Pulse | 600W | 600W | Identical |
| Operating Temperature Range | -55°C to 150°C (TJ) | -55°C to 150°C (TJ) | Identical |
| Package / Case | DO-214AA, SMB | DO-214AA, SMB | Identical |
| Mounting Type | Surface Mount | Surface Mount | Identical |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical |
| Product Status | Active | Active | Identical |
Engineering Selection Recommendations
Both the P6SMB180A and P6SMB180A_R1_00001 are active products with identical RoHS3 compliance status and REACH unaffected designation. Selection between these parts is based on the following criteria:
Primary Part (P6SMB180A - Taiwan Semiconductor Corporation):
- Higher peak pulse current rating (2.5A)
- Larger inventory availability (119,400 pcs)
- Established supply chain status
Substitute Part (P6SMB180A_R1_00001 - Panjit International Inc.):
- Equivalent electrical performance within specified tolerances
- Peak pulse current rating of 2.4A meets general-purpose TVS applications
- Alternative sourcing option (7,389 pcs available)
- Identical compliance certifications
Both parts are suitable for general-purpose transient voltage suppression applications. The 0.1A difference in peak pulse current (2.4A versus 2.5A) does not affect functional equivalence for applications within the specified power dissipation envelope of 600W.
Frequently Asked Questions (FAQ)
Q: Can P6SMB180A_R1_00001 be used as a direct replacement for P6SMB180A?
A: Yes. Both parts share identical voltage ratings (154V standoff, 171V breakdown, 246V clamping), identical power dissipation (600W), identical operating temperature range (-55°C to 150°C), and identical package configuration (DO-214AA, SMB). The peak pulse current difference (2.4A versus 2.5A) is within acceptable tolerance for general-purpose applications.
Q: Are there any package or mounting differences between these parts?
A: No. Both parts use the DO-214AA (SMB) surface-mount package with identical mechanical dimensions and land patterns. No PCB layout modifications are required for substitution.
Q: Do both parts meet the same compliance standards?
A: Yes. Both P6SMB180A and P6SMB180A_R1_00001 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. Both are classified under ECCN EAR99 and HTSUS 8541.10.0080.
Q: What is the significance of the 0.1A current difference?
A: The peak pulse current specification (2.5A for the primary part, 2.4A for the substitute) represents the maximum transient current the device can suppress during a 10/1000µs pulse. Both ratings support the 600W peak pulse power dissipation specification. For general-purpose transient suppression, this difference does not affect circuit protection performance.
Q: Are both parts actively manufactured?
A: Yes. Both P6SMB180A (Taiwan Semiconductor Corporation) and P6SMB180A_R1_00001 (Panjit International Inc.) maintain active product status with current inventory availability.
Q: Can these parts be used interchangeably in high-reliability applications?
A: Both parts meet identical electrical specifications and compliance requirements. Selection between manufacturers should follow established procurement and qualification procedures for your specific application requirements.
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