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Microchip Technology MXDA3KP7.5A
- Part No.:
- MXDA3KP7.5A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP7.5A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:8,913
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Product details
Overview
MXDA3KP7.5A from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array designed for high-reliability overvoltage protection in power rails and signal lines. It features a 7.5 V reverse standoff voltage (VWM), 8.33–9.21 V breakdown voltage (V(BR)), 12.9 V maximum clamping voltage at 232.6 A peak pulse current, and operates across –55 °C to +150 °C junction temperature. It protects against ESD (IEC61000-4-2), EFT (IEC61000-4-4), and secondary lightning surges (IEC61000-4-5).
For engineers reviewing the MXDA3KP7.5A datasheet, MXDA3KP7.5A pinout, MXDA3KP7.5A application, or MXDA3KP7.5A equivalent, this page delivers verified electrical parameters, package dimensions, IEC-compliant surge capability, polarity marking convention, and real-world protection use cases - all aligned with Microsemi RF01243 Rev B.
Technical Context
The MXDA3KP7.5A is a single-channel unidirectional TVS diode optimized for fast clamping of high-energy transients on DC power buses and low-voltage interfaces. Its <100 ps response time enables effective suppression of ESD events, while its 3000 W peak pulse power rating at 10/1000 µs waveform supports robust protection against inductive switching spikes and lightning-induced surges.
It uses a void-free thermosetting epoxy package rated UL94V-0, with tin-lead or matte-tin terminations compliant with MIL-STD-750 Method 2026. Pin 1 is cathode-marked by a dot, and odd-numbered pins serve as cathodes per device channel - critical for correct orientation in PCB layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - maximum continuous operating voltage before clamping begins; must exceed circuit's peak working voltage |
| V(BR) min–max | 8.33–9.21 V @ 1 mA - guaranteed breakdown range defining turn-on threshold under standardized test conditions |
| VC @ IPP | 12.9 V @ 232.6 A - clamping voltage during worst-case 10/1000 µs surge; determines protected IC's maximum stress voltage |
| IPP | 232.6 A - peak impulse current supported at rated clamping voltage; defines surge energy handling capacity |
| ID @ VWM | 100 µA - standby leakage current at full standoff voltage; impacts low-power system quiescent current budget |
| TJ Range | –55 °C to +150 °C - extended thermal operating envelope suitable for automotive under-hood and industrial control environments |
Pinout & Package
MXDA3KP7.5A is housed in a surface-mount, void-free thermosetting epoxy package (UL94V-0) with dual leads. Dimensions: 21.03–22.05 mm length × 6.86–7.87 mm width × 8.64–9.65 mm height. Pin 1 is cathode, marked by a dot on top of the body; polarity follows standard unidirectional TVS convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line; anode tied to ground or lower-potential rail for unidirectional clamping |
| Pin 2 | Anode | Reference node (typically GND); establishes forward-biased path during negative transients |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables protection against high-energy 10/1000 µs surges without degradation - validated per Figure 1 in RF01243 |
| 12.9 V clamping at 232.6 A | Limits voltage overshoot on 5 V or 3.3 V rails during surge events, preserving downstream logic and interface ICs |
| Moisture sensitivity Level 1 | No dry-pack or baking required prior to reflow; compatible with standard J-STD-020B assembly processes |
| MIL-PRF-19500 screening option | Supports high-reliability programs requiring wafer lot traceability, 3σ ID screening, and conformance inspection |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of 12 V battery-supplied microcontroller I/O and CAN transceiver power rails against load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VCC and GND to clamp positive-going transients above 7.5 V. Use Value: Limits clamped voltage to 12.9 V during 232.6 A surge, preventing latch-up or permanent damage to 16-bit MCUs and CAN PHYs. | Use Scenario: Safeguarding LIN bus transceivers and sensor supply lines from ESD and battery reversal-induced transients. IC Role / Device Role / Timing Role: Standoff-rated TVS on 5 V regulated rail, absorbing ±8 kV contact ESD per IEC61000-4-2. Use Value: Sub-100 ps response ensures clamping occurs before ESD pulse propagates into sensitive analog front-ends. |
| Telecom Power Feeds | Renewable Energy Inverters |
Use Scenario: Secondary lightning protection on 48 V DC distribution lines feeding remote radio units and base station controllers. IC Role / Device Role / Timing Role: Front-end TVS in series with upstream fuse and MOV, rated for IEC61000-4-5 Class 3 (12 Ω source impedance). Use Value: 3000 W rating sustains multiple 10/1000 µs surges up to 42 Ω source impedance without parametric shift. | Use Scenario: Overvoltage protection on photovoltaic string monitoring circuits exposed to induced surges from nearby AC switching. IC Role / Device Role / Timing Role: Unidirectional clamp on isolated 3.3 V sensing rail, referenced to local ground plane. Use Value: 100 µA max leakage at 7.5 V avoids measurement drift in high-impedance voltage dividers used for MPPT feedback. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5A | 600 W PPP rating, SMA package, 12.9 V VC @ 43.5 A IPP | Lower surge capacity; suited for board-level ESD only, not lightning or inductive switching | Select when space-constrained layouts require SMT discretes but system-level surge energy is ≤600 W |
| SMCJ7.5A | 1500 W PPP rating, SMC package, 12.9 V VC @ 115.5 A IPP | Mid-tier energy handling; lacks MIL-PRF-19500 screening option and extended TJ range | Choose for cost-sensitive industrial controls where 1500 W surge margin suffices and high-reliability screening is unnecessary |
Compared with SMAJ7.5A and SMCJ7.5A, the MXDA3KP7.5A delivers double the peak pulse power of the SMCJ variant and five times that of the SMAJ, while supporting military-grade screening and operation up to +150 °C - making it uniquely suited for mission-critical power rail protection where sustained surge immunity and thermal resilience are mandatory.
Availability
MXDA3KP7.5A is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power feeds, and renewable energy inverters requiring stable component supply and long-term lifecycle assurance.
Supply support for MXDA3KP7.5A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microsemi Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The MDA3KP series was engineered for ruggedized transient suppression in harsh-environment systems - emphasizing surge endurance, thermal stability, and compliance with MIL-PRF-19500 screening standards.
FAQ
What is the clamping voltage of the MXDA3KP7.5A at its rated peak pulse current?
The MXDA3KP7.5A has a maximum clamping voltage (VC) of 12.9 V at its rated peak pulse current (IPP) of 232.6 A under 10/1000 µs waveform conditions. This value is measured per standard test methods defined in the RF01243 datasheet and reflects worst-case voltage seen by downstream circuitry during surge events. The MXDA3KP7.5A maintains this clamping performance across its full operating temperature range.
Is the MXDA3KP7.5A RoHS compliant?
Yes, the MXDA3KP7.5A is RoHS compliant, indicated by the "e3" suffix in its full part marking per Microsemi's nomenclature guide. The device uses annealed matte-tin plating on terminals and meets IPC/JEDEC J-STD-020B moisture sensitivity Level 1 requirements. No lead-based solder is required for assembly, and the MXDA3KP7.5A conforms to EU Directive 2011/65/EU.
Does the MXDA3KP7.5A support MIL-PRF-19500 screening?
Yes, optional MIL-PRF-19500 screening is available for the MXDA3KP7.5A, including wafer lot traceability, 3σ screening on standby current (ID), and conformance inspections. Screening details are documented in Micronote 129. Customers specifying screened MXDA3KP7.5A units receive full test data packages and qualification reports aligned with military reliability standards.
What is the polarity configuration of the MXDA3KP7.5A?
The MXDA3KP7.5A is a unidirectional TVS diode with cathode on Pin 1 (marked by a dot on the package top) and anode on Pin 2. This configuration allows clamping only of positive transients relative to ground. For bidirectional protection, Microsemi offers the MXDA3KP7.5CA variant - the MXDA3KP7.5A itself does not suppress negative-going surges beyond its forward voltage drop.
How does the MXDA3KP7.5A compare to standard SMA/SMB/SMC package TVS diodes in surge handling?
The MXDA3KP7.5A delivers 3000 W peak pulse power - significantly higher than SMAJ (600 W), SMBJ (600 W), or SMCJ (1500 W) devices. Its larger thermosetting epoxy package enables superior thermal dissipation and sustained surge endurance. Unlike smaller packages, the MXDA3KP7.5A maintains stable V(BR) and VC across repeated 10/1000 µs pulses, making it appropriate for primary-level protection where SMCJ-class devices would degrade or fail.
MXDA3KP7.5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- 16-SMD, Gull Wing
- Series:
- MDA
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 8
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.9V
- Current - Peak Pulse (10/1000µs):
- 232.6A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
MXDA3KP7.5A FAQ
1.How can I place an order for MXDA3KP7.5A through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP7.5A on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MXDA3KP7.5A reliable?
The price and inventory of MXDA3KP7.5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP7.5A is usually 5 days.
3.What payment methods are accepted for MXDA3KP7.5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXDA3KP7.5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXDA3KP7.5A?
MXDA3KP7.5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXDA3KP7.5A order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MXDA3KP7.5A?
For technical support, including MXDA3KP7.5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP7.5A requirements.
6.How does Aetrix verify that MXDA3KP7.5A is sourced from the original manufacturer or authorized distributors?
All MXDA3KP7.5A products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MXDA3KP7.5A meets industry standards.
7.What is the process for return or replacement of MXDA3KP7.5A?
All MXDA3KP7.5A units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP7.5A, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MXDA3KP7.5A part is unused and in its original packaging.
Return procedure for MXDA3KP7.5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXDA3KP7.5A Tags
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