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2M17Z B0G Zener Diode Equivalent & Substitute Parts
Part Overview
The 2M17Z B0G is a 17 V, 2 W Zener diode manufactured by Taiwan Semiconductor Corporation, designed for voltage regulation and protection applications in through-hole configurations. This component is classified as Active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when equivalent electrical performance is required, inventory availability is constrained, or alternative packaging formats are necessary for production requirements.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Zener (Nominal) | 17 | V |
| Power - Maximum | 2 | W |
| Tolerance | ±5 | % |
| Impedance (Maximum) | 9 | Ohms |
| Current - Reverse Leakage @ Vr | 500 nA @ 13 V | nA |
| Operating Temperature Range | -55 to 175 | °C |
| Mounting Type | Through Hole | — |
| Package / Case | DO-204AC (DO-15) | — |
| RoHS Status | ROHS3 Compliant | — |
Substitute Part Grouping Explanation
Substitution of the 2M17Z B0G is determined by the following critical electrical parameters:
Primary Substitution Criteria:
- Zener voltage (Nominal): 17 V ±5% tolerance
- Mounting type: Through Hole configuration
- Package compatibility: DO-204AC / DO-15 axial format
- Regulatory compliance: RoHS3 and REACH status
Secondary Compatibility Factors:
- Power dissipation rating (equal or greater than 2 W)
- Impedance characteristics (Zzt maximum)
- Reverse leakage current specifications
- Operating temperature range coverage
The 1N5354B-TP qualifies as a direct substitute based on matching nominal Zener voltage (17 V), identical tolerance (±5%), compatible through-hole mounting, and equivalent package designation (DO-15). The substitute exhibits enhanced power handling (5 W versus 2 W) and improved impedance characteristics (2.5 Ohms versus 9 Ohms maximum), providing superior performance margins within the same electrical classification.
Parameter Comparison
| Parameter | 2M17Z B0G | 1N5354B-TP | Unit |
|---|---|---|---|
| Manufacturer | Taiwan Semiconductor Corporation | Micro Commercial Co | — |
| Voltage - Zener (Nominal) | 17 | 17 | V |
| Tolerance | ±5 | ±5 | % |
| Power - Maximum | 2 | 5 | W |
| Impedance (Maximum) | 9 | 2.5 | Ohms |
| Current - Reverse Leakage @ Vr | 500 nA @ 13 V | 500 nA @ 12.9 V | nA |
| Operating Temperature Range | -55 to 175 | -55 to 150 | °C |
| Mounting Type | Through Hole | Through Hole | — |
| Package / Case | DO-204AC (DO-15) | DO-15 | — |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | — |
| REACH Status | REACH Unaffected | REACH Unaffected | — |
| Product Status | Active | Active | — |
Engineering Selection Recommendations
Primary Selection (2M17Z B0G): Select the 2M17Z B0G when the application requires the specified 2 W power rating and the higher impedance characteristic (9 Ohms maximum) is acceptable for circuit design. This component maintains Active product status with full RoHS3 compliance and REACH unaffected designation. Current inventory availability is 699 pieces.
Substitute Selection (1N5354B-TP): Select the 1N5354B-TP when enhanced power dissipation capability (5 W) is beneficial for thermal margin or when lower impedance (2.5 Ohms maximum) improves voltage regulation performance. This substitute maintains identical Zener voltage and tolerance specifications, Active product status, RoHS3 compliance, and REACH unaffected designation. Current inventory availability is 4813 pieces. The operating temperature range extends to 150°C maximum, which is 25°C lower than the primary part; applications requiring operation above 150°C require the 2M17Z B0G.
Both components are suitable for direct substitution in through-hole circuit board applications where DO-15 axial package format is specified.
Frequently Asked Questions (FAQ)
Q: Can the 1N5354B-TP replace the 2M17Z B0G in all applications?
A: The 1N5354B-TP is electrically compatible for applications operating within -55°C to 150°C. Applications requiring operation above 150°C must use the 2M17Z B0G, which operates to 175°C. Both components share identical 17 V nominal Zener voltage and ±5% tolerance specifications.
Q: What is the significance of the impedance difference between these parts?
A: The 2M17Z B0G has a maximum impedance of 9 Ohms, while the 1N5354B-TP has 2.5 Ohms maximum. Lower impedance provides better voltage regulation stability under load changes. The 1N5354B-TP offers superior impedance performance for applications requiring tighter voltage regulation.
Q: Are the package formats identical?
A: Both components use DO-15 axial through-hole packaging. The 2M17Z B0G is designated DO-204AC (DO-15), and the 1N5354B-TP is designated DO-15. These are mechanically and electrically compatible for board-level installation.
Q: What is the difference in power rating significance?
A: The 2M17Z B0G is rated for 2 W maximum power dissipation, while the 1N5354B-TP is rated for 5 W. The higher power rating of the substitute provides greater thermal margin and allows operation at higher current levels without exceeding maximum junction temperature limits.
Q: Do both parts meet the same regulatory requirements?
A: Yes. Both the 2M17Z B0G and 1N5354B-TP are RoHS3 compliant and REACH unaffected. Both components carry Active product status and are suitable for applications with regulatory compliance requirements.
Q: What is the reverse leakage current specification?
A: Both components specify 500 nanoamperes reverse leakage current. The 2M17Z B0G is measured at 13 V, while the 1N5354B-TP is measured at 12.9 V. This specification indicates minimal leakage in reverse bias conditions.
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