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MP6KE150AE3 Equivalent & Substitute Parts
Part Overview
The MP6KE150AE3 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This component features a 128V reverse standoff voltage with a 207V maximum clamping voltage and 2.9A peak pulse current capability in a T-18 axial through-hole package. The device is qualified to MIL-PRF-19500 military standards and maintains an active product status. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when specific packaging or performance characteristics require alternative configurations.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 128 | V |
| Voltage - Breakdown (Min) | 143 | V |
| Voltage - Clamping (Max) @ Ipp | 207 | V |
| Current - Peak Pulse (10/1000µs) | 2.9 | A |
| Power - Peak Pulse | 600 | W |
| Operating Temperature Range | -65 to 150 | °C (TJ) |
| Type | Zener | - |
| Unidirectional Channels | 1 | - |
| Mounting Type | Through Hole | - |
| Package / Case | T-18, Axial | - |
Substitute Part Grouping Explanation
Substitution of the MP6KE150AE3 is determined by electrical parameter equivalence and mechanical compatibility. The critical parameters that define substitutability are:
Electrical Parameters:
- Voltage - Reverse Standoff (Typ): 128V
- Voltage - Clamping (Max) @ Ipp: 207V
- Current - Peak Pulse (10/1000µs): 2.9A minimum
- Power - Peak Pulse: 600W
- Type: Unidirectional Zener
Mechanical Parameters:
- Mounting Type: Through Hole
- Package Configuration: Axial
The P6KE150A from Diotec Semiconductor meets all electrical parameter requirements with equivalent standoff voltage, clamping voltage, and power dissipation capability. The substitute part demonstrates a peak pulse current of 3A, which exceeds the minimum 2.9A requirement. The primary difference is the package configuration: the substitute uses DO-15 (DO-204AC) axial packaging instead of T-18 axial packaging. Both packages are through-hole axial configurations suitable for identical circuit board layouts and mounting procedures.
Parameter Comparison
| Parameter | MP6KE150AE3 (Microchip) | P6KE150A (Diotec) | Match Status |
|---|---|---|---|
| Voltage - Reverse Standoff (Typ) | 128V | 128V | Equivalent |
| Voltage - Breakdown (Min) | 143V | 143V | Equivalent |
| Voltage - Clamping (Max) @ Ipp | 207V | 207V | Equivalent |
| Current - Peak Pulse (10/1000µs) | 2.9A | 3A | Substitute Exceeds |
| Power - Peak Pulse | 600W | 600W | Equivalent |
| Type | Zener | Zener | Equivalent |
| Unidirectional Channels | 1 | 1 | Equivalent |
| Operating Temperature Range | -65°C to 150°C | -50°C to 175°C | Substitute Exceeds |
| Mounting Type | Through Hole | Through Hole | Equivalent |
| Package / Case | T-18, Axial | DO-15 (DO-204AC), Axial | Different Package |
Engineering Selection Recommendations
MP6KE150AE3 (Primary Part): Select this part when military-grade qualification to MIL-PRF-19500 is a design requirement. The device maintains active product status with established supply chain availability (820 pcs in stock). This part is suitable for applications requiring military specification compliance and T-18 package configuration.
P6KE150A (Substitute Part): This part is suitable as a functional equivalent when T-18 package availability is constrained. The P6KE150A maintains electrical parameter equivalence across all critical specifications: 128V standoff voltage, 207V clamping voltage, and 600W peak pulse power. The substitute part demonstrates superior peak pulse current (3A versus 2.9A) and extended operating temperature range (-50°C to 175°C versus -65°C to 150°C). The DO-15 (DO-204AC) axial package is mechanically compatible with through-hole circuit board layouts. This part is suitable for general-purpose applications where military qualification is not required. High inventory availability (18,888 pcs in stock) supports rapid procurement.
Frequently Asked Questions (FAQ)
Q: Can the P6KE150A directly replace the MP6KE150AE3 in existing designs?
A: The P6KE150A is electrically equivalent across all critical parameters: reverse standoff voltage, breakdown voltage, clamping voltage, and power dissipation. Both devices are unidirectional through-hole axial packages. The primary consideration is package form factor: the substitute uses DO-15 (DO-204AC) packaging instead of T-18. Both packages are axial through-hole configurations with compatible lead spacing for standard circuit board layouts. Verification of physical package dimensions against PCB footprint requirements is necessary before implementation.
Q: What are the key electrical differences between these parts?
A: The parts are electrically equivalent in all critical transient voltage suppression parameters. The P6KE150A demonstrates a peak pulse current of 3A compared to the MP6KE150AE3 at 2.9A, representing a performance margin. The substitute part also provides an extended operating temperature range of -50°C to 175°C versus -65°C to 150°C on the primary part. These differences represent performance enhancements rather than limitations.
Q: Does the P6KE150A meet military specifications?
A: The P6KE150A does not carry military qualification certification. The MP6KE150AE3 is qualified to MIL-PRF-19500 military standards. Applications requiring military-grade components must use the MP6KE150AE3. Applications without military specification requirements can utilize the P6KE150A as a functional equivalent.
Q: Are there packaging considerations for circuit board assembly?
A: Both parts use through-hole axial packaging suitable for standard PCB assembly processes. The MP6KE150AE3 uses T-18 axial packaging, while the P6KE150A uses DO-15 (DO-204AC) axial packaging. Physical package dimensions and lead spacing should be verified against circuit board footprint specifications. Both packages are compatible with wave soldering and manual soldering processes.
Q: What is the inventory status for these parts?
A: The MP6KE150AE3 has 820 pieces in stock as new original inventory. The P6KE150A has 18,888 pieces in stock as new original inventory. The substitute part offers significantly higher availability for rapid procurement scenarios.
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