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Microchip Technology MADA3KP7.5A
- Part No.:
- MADA3KP7.5A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MADA3KP7.5A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:8,527
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Product details
Overview
MDA3KP7.5A 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 from −55 °C to +150 °C. It protects against ESD (IEC61000-4-2), EFT (IEC61000-4-4), and secondary lightning surges (IEC61000-4-5).
For engineers reviewing the MDA3KP7.5A datasheet, MDA3KP7.5A pinout, MDA3KP7.5A application, or MDA3KP7.5A equivalent, this page delivers verified electrical parameters, package dimensions, IEC-compliant surge capability, polarity marking convention, and direct alternatives for industrial power supply, telecom interface, and automotive body control module designs.
Technical Context
The MDA3KP7.5A is a single-channel unidirectional TVS diode optimized for fast clamping of high-energy transients with <100 ps response time. Its 3000 W peak pulse power rating at 10/1000 µs waveform and 12.9 V clamping voltage at 232.6 A ensure robust protection of downstream MOSFETs, controllers, and analog front-ends under repetitive surge stress.
It complies with MIL-PRF-19500 screening options for high-reliability applications and exhibits Level 1 moisture sensitivity per J-STD-020B-no dry pack required. Standby leakage is limited to 100 µA at 7.5 V, enabling low-power system compatibility without compromising surge immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - Maximum continuous DC or peak AC voltage the device blocks without conduction. |
| V(BR) min/max | 8.33–9.21 V @ 1 mA - Confirmed breakdown threshold range ensures predictable turn-on during overvoltage events. |
| VC @ IPP | 12.9 V @ 232.6 A - Clamping voltage limits stress on protected ICs during worst-case 10/1000 µs surge. |
| PPP | 3000 W @ 10/1000 µs - Sustains high-energy transients common in industrial motor drives and telecom line cards. |
| ID @ VWM | 100 µA - Low leakage preserves battery life and avoids false triggering in always-on circuits. |
| TJ/TSTG | −55 °C to +150 °C - Enables deployment in under-hood automotive, outdoor base stations, and industrial PLC environments. |
Pinout & Package
MDA3KP7.5A uses a 2-pin surface-mount DO-214AB (SMC) package with void-free UL94V-0 epoxy body, tin-lead or matte-tin plating, and polarity marked by a dot indicating Pin 1 as cathode. Weight ≈ 5 g; moisture sensitivity level = 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected circuit's positive rail; conducts during overvoltage to shunt current to ground. |
| Pin 2 | Anode | Connected to system ground; completes current path during clamping event with minimal impedance. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional construction | Enables DC-biased rail protection without reverse conduction risk in asymmetric voltage domains. |
| 3000 W peak pulse power | Handles IEC61000-4-5 Class 4 surges (42 Ω source) up to 232.6 A without degradation. |
| Level 1 moisture sensitivity | Eliminates bake-out requirement before reflow, reducing manufacturing cost and PCB handling steps. |
| MIL-PRF-19500 screening option | Supports aerospace, defense, and critical infrastructure programs requiring wafer lot traceability and 3σ ID screening. |
Applications
| Industrial Motor Drives | Telecom Line Interface |
|---|---|
Use Scenario: Protection of gate drivers and current-sense amplifiers from inductive kickback in 48 V BLDC inverters. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed across DC bus input to absorb 3000 W switching transients. Use Value: Prevents MOSFET avalanche failure and maintains ±1% current measurement accuracy during 10/1000 µs surges. | Use Scenario: Surge suppression on POTS line interface cards exposed to lightning-induced coupling. IC Role / Device Role / Timing Role: First-stage protector between transformer secondary and SLIC IC input. Use Value: Limits induced voltage to ≤12.9 V during IEC61000-4-5 42 Ω Class 4 test, preserving SLIC analog integrity. |
| Automotive Body Control Module | Medical Power Supply Input |
Use Scenario: Protection of LIN bus transceivers and microcontroller I/O pins against load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed on 12 V supply rail upstream of LDO regulators. Use Value: Clamps 232.6 A pulses within 100 ps, preventing brownout resets and EEPROM corruption. | Use Scenario: Input-stage surge guard for isolated AC/DC converters in Class II medical devices. IC Role / Device Role / Timing Role: Secondary-side TVS on DC output rail protecting patient-connected analog sensors. Use Value: Meets IEC60601-1 creepage/clearance requirements while delivering 12.9 V clamping at full 3000 W rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5A | 600 W PPP rating; same VWM and V(BR) range; SMB package (smaller footprint, lower thermal mass) | Lower energy handling limits use to sub-100 A surges; unsuitable for IEC61000-4-5 Class 3/4 | Select when space-constrained layouts prioritize density over 3000 W surge margin. |
| 1.5KE7.5A | 3000 W PPP but axial-leaded DO-15 package; higher thermal resistance; no surface-mount compatibility | Requires through-hole assembly; incompatible with automated SMT lines and high-density PCBs | Choose only for legacy repair or prototyping where manual soldering is acceptable. |
Compared with SMBJ7.5A and 1.5KE7.5A, the MDA3KP7.5A uniquely combines 3000 W surge capacity, SMT-ready DO-214AB packaging, and MIL-PRF-19500 screening readiness-making it the only option qualified for high-volume, high-reliability industrial and automotive production.
Availability
MDA3KP7.5A is available at Aetrix Electronics and suitable for industrial motor drives, telecom line interfaces, automotive body control modules, and medical power supply inputs requiring stable component supply across extended temperature and surge stress conditions.
Supply support for MDA3KP7.5A 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, RF, and radiation-hardened components for aerospace, defense, and industrial markets.
The MDA3KP series was developed specifically for mission-critical overvoltage protection in harsh-environment systems where surge immunity, long-term parametric stability, and traceable manufacturing are mandatory-not just desirable.
FAQ
What is the clamping voltage of MDA3KP7.5A at its rated peak pulse current?
The MDA3KP7.5A 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 guaranteed per the manufacturer's electrical characteristics table and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The MDA3KP7.5A achieves this performance with sub-100 ps response time, ensuring minimal overshoot before clamping engages.
Is MDA3KP7.5A RoHS compliant?
Yes, MDA3KP7.5A is RoHS compliant, indicated by the "e3" suffix in its full part marking per the Microsemi nomenclature guide. The device uses annealed matte-tin plating on terminals and void-free UL94V-0 epoxy encapsulation-both fully compliant with Directive 2011/65/EU. No lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE substances exceed allowable thresholds in the MDA3KP7.5A construction.
Can MDA3KP7.5A be used in bidirectional configurations?
No, MDA3KP7.5A is unidirectional only. Its part number lacks the "C" suffix specified in the nomenclature guide for bidirectional variants (e.g., MDA3KP7.5CA). The device conducts only when anode-to-cathode voltage exceeds breakdown-making it suitable for DC-biased rails. For AC or dual-polarity signal lines, engineers must select the corresponding "C"-suffixed part or implement back-to-back unidirectional devices.
What is the standoff voltage rating of MDA3KP7.5A and how does it relate to system design?
The MDA3KP7.5A has a reverse standoff voltage (VWM) of 7.5 V-the maximum continuous operating voltage it blocks without significant leakage. System designers must ensure that the nominal or peak operating voltage of the protected node remains ≤7.5 V to prevent premature conduction. Exceeding VWM risks elevated standby current (ID = 100 µA max), thermal stress, and reduced surge lifetime. The MDA3KP7.5A is therefore ideal for 5 V or 6 V logic rails with margin, not 12 V systems.
Does MDA3KP7.5A require special handling or baking before reflow soldering?
No, MDA3KP7.5A does not require baking prior to reflow. Its moisture sensitivity level is rated Level 1 per IPC/JEDEC J-STD-020B, meaning it may be stored indefinitely at ≤30 °C/60% RH without dry-pack desiccant or floor-life restrictions. The MDA3KP7.5A can proceed directly from tape-and-reel to standard lead-free reflow profiles (peak 260 °C for 10 s), simplifying SMT line integration and eliminating moisture-related popcorning risk.
MADA3KP7.5A 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:
- -
MADA3KP7.5A FAQ
1.How can I place an order for MADA3KP7.5A through Aetrix?
Please submit a Request for Quotation (RFQ) for MADA3KP7.5A 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 MADA3KP7.5A reliable?
The price and inventory of MADA3KP7.5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MADA3KP7.5A is usually 5 days.
3.What payment methods are accepted for MADA3KP7.5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MADA3KP7.5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MADA3KP7.5A?
MADA3KP7.5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MADA3KP7.5A 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 MADA3KP7.5A?
For technical support, including MADA3KP7.5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MADA3KP7.5A requirements.
6.How does Aetrix verify that MADA3KP7.5A is sourced from the original manufacturer or authorized distributors?
All MADA3KP7.5A 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 MADA3KP7.5A meets industry standards.
7.What is the process for return or replacement of MADA3KP7.5A?
All MADA3KP7.5A units undergo pre-shipment inspection (PSI). If there is an issue with MADA3KP7.5A, 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 MADA3KP7.5A part is unused and in its original packaging.
Return procedure for MADA3KP7.5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MADA3KP7.5A Tags
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