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Microchip Technology MDA3KP7.5AE3
- Part No.:
- MDA3KP7.5AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MDA3KP7.5AE3.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:7,246
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Product details
Overview
MDA3KP7.5AE3 from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array with 7.5 V standoff voltage (VWM), 8.33–9.21 V breakdown voltage (V(BR)), and 12.9 V clamping voltage (VC) at 232.6 A peak pulse current (IPP). It provides secondary lightning protection per IEC61000-4-5 (42 Ω, Class 1–4), ESD/EFT suppression per IEC61000-4-2/4-4, and inductive switching transient protection in power supply input stages.
For engineers reviewing the MDA3KP7.5AE3 datasheet, MDA3KP7.5AE3 pinout, MDA3KP7.5AE3 application, or MDA3KP7.5AE3 equivalent, this page delivers verified electrical parameters, package dimensions, IEC-compliant surge capability, RoHS-compliant plating (e3), and direct alternative part comparisons for industrial power interface design.
Technical Context
The MDA3KP7.5AE3 operates as a unidirectional avalanche diode-based TVS, designed for fast-clamping response (<100 ps rise time) under 10/1000 µs surge waveforms. Its 7.5 V VWM ensures compatibility with 5 V and 3.3 V logic-supply rails while maintaining margin above DC operating voltage.
It meets MIL-PRF-19500 high-reliability screening options and features void-free UL94V-0 epoxy packaging, tin-lead or matte-tin terminations, and polarity defined by dot-marked Pin 1 (cathode). Standby leakage ID is ≤100 µA at VWM, supporting low-power system monitoring circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - Maximum continuous reverse working voltage before conduction; sets minimum system overvoltage threshold |
| V(BR) min/max | 8.33–9.21 V @ 1 mA - Confirmed avalanche onset range; ensures predictable turn-on across temperature and lot variation |
| VC @ IPP | 12.9 V @ 232.6 A - Clamped voltage during 10/1000 µs surge; defines maximum stress on downstream ICs |
| PPP | 3000 W @ 10/1000 µs - Peak pulse power handling; supports IEC61000-4-5 Level 4 with 42 Ω source impedance |
| ID @ VWM | ≤100 µA - Low standby leakage; avoids loading of high-impedance bias networks or sensor references |
| TJ/TSTG | −55 to +150 °C - Extended thermal operating envelope; enables use in automotive engine compartments and industrial enclosures |
Pinout & Package
MDA3KP7.5AE3 uses a 3-pin SMC (DO-214AB) surface-mount package with cathode-defined polarity: Pin 1 = cathode, Pin 2 = anode, Pin 3 = cathode (dual-channel configuration). Body marking includes date code and "MDA3KP7.5A"; dot on top identifies Pin 1. Package dimensions: 21.03–22.05 mm × 6.86–7.87 mm × 8.64–9.65 mm (L×W×H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (Channel 1) | Connected to protected line; clamps positive transients to ground when voltage exceeds V(BR) |
| Pin 2 | Anode (Common) | Shared anode node tied to system ground; enables dual-cathode configuration for bidirectional-like layout flexibility |
| Pin 3 | Cathode (Channel 2) | Second protected line connection; allows simultaneous suppression of two independent signal/power lines |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables single-device protection against IEC61000-4-5 Class 4 surges (4 kV, 42 Ω source) without parallel staging |
| RoHS-compliant e3 marking | Matte-tin termination meets JEDEC J-STD-020B Level 1 moisture sensitivity; no dry-pack required pre-reflow |
| 100 ps response time | Clamps ESD events (IEC61000-4-2 ±8 kV contact) before sensitive CMOS inputs reach destructive voltage levels |
| MIL-PRF-19500 screening option | Supports high-reliability aerospace and defense programs requiring wafer/lot traceability and 3σ ID screening |
Applications
| Industrial Power Input Protection | Automotive ECUs |
|---|---|
Use Scenario: 24 V DC power entry point in PLC backplanes exposed to load dump and inductive kickback. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converters and microcontrollers. Use Value: Limits transient voltage to ≤12.9 V during 232.6 A surges, preventing latch-up or gate oxide rupture in downstream regulators. | Use Scenario: CAN bus and sensor supply lines in engine control units subject to ISO 7637-2 Pulse 1/2a/5a. IC Role / Device Role / Timing Role: Unidirectional TVS on 5 V sensor rail and 12 V CAN transceiver VCC. Use Value: Withstands 100 µA max leakage at 7.5 V VWM, avoiding interference with low-current analog sensor biasing. |
| Telecom AC/DC Front-Ends | Medical Imaging Power Rails |
Use Scenario: Secondary-side DC output of telecom rectifiers subjected to lightning-induced ring waves. IC Role / Device Role / Timing Role: Final-stage surge suppression before isolated DC distribution to digital ASICs. Use Value: 3000 W rating accommodates repeated 10/1000 µs impulses at ≤0.05% duty cycle without degradation. | Use Scenario: High-voltage X-ray generator auxiliary supplies requiring fail-safe overvoltage containment. IC Role / Device Role / Timing Role: Redundant clamping device on critical 15 V logic rails where single-point failure is unacceptable. Use Value: −55 to +150 °C junction range supports operation inside sealed, non-ventilated imaging chassis with ambient up to 70 °C. |
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/V(BR)/VC but lower IPP (101 A vs. 232.6 A) | Not suitable for IEC61000-4-5 Class 4; limited to Class 2/3 with 42 Ω source | Select SMBJ7.5A only for space-constrained designs where 3000 W surge capacity is not required. |
| SMCJ7.5A | 1500 W PPP; VWM/V(BR)/VC identical; IPP = 163 A; same SMC package footprint | Meets IEC61000-4-5 Class 3 (42 Ω), but fails Class 4 compliance margin | Use SMCJ7.5A when cost optimization is prioritized and full 3000 W headroom is unnecessary. |
Compared with SMBJ7.5A and SMCJ7.5A, the MDA3KP7.5AE3 delivers 2× and 2× higher peak pulse power respectively-enabling single-device Class 4 lightning protection without derating or paralleling, while retaining identical PCB layout compatibility with SMCJ7.5A.
Availability
MDA3KP7.5AE3 is available at Aetrix Electronics and suitable for industrial power input protection, automotive ECU interfaces, and telecom front-end surge suppression requiring stable component supply across extended product lifecycles.
Supply support for MDA3KP7.5AE3 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 mission-critical transient suppression in harsh environments, emphasizing MIL-PRF-19500 traceability, 3000 W surge robustness, and extended temperature operation beyond commercial-grade TVS arrays.
FAQ
What is the clamping voltage of MDA3KP7.5AE3 at its rated peak pulse current?
The MDA3KP7.5AE3 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 Figure 2 in the RF01243 datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The MDA3KP7.5AE3 maintains this clamping performance across its full operating temperature range.
Is MDA3KP7.5AE3 RoHS compliant and what does the 'e3' suffix indicate?
Yes, MDA3KP7.5AE3 is RoHS compliant. The 'e3' suffix explicitly denotes matte-tin plating per JEDEC J-STD-020B Level 1 moisture sensitivity, eliminating the need for dry-pack storage prior to reflow soldering. This specification is confirmed in the "Part Nomenclature" section on page 2 of the RF01243 datasheet and applies to all MDA3KPxxAE3 variants.
Can MDA3KP7.5AE3 be used for bidirectional transient suppression?
No, MDA3KP7.5AE3 is unidirectional only. Its part number lacks the 'C' suffix (e.g., MDA3KP7.5CE3), which designates bidirectional construction. The device conducts only during positive transients relative to its cathode terminals (Pins 1 and 3); negative excursions remain unclamped. For bidirectional protection, select MDA3KP7.5CE3 or pair two unidirectional devices in series opposition.
What is the standoff voltage (VWM) and why is it critical for MDA3KP7.5AE3 selection?
The standoff voltage (VWM) of MDA3KP7.5AE3 is 7.5 V-the maximum continuous reverse voltage it can block without significant leakage. This parameter must exceed the peak operating voltage of the protected line (e.g., 5 V rail + tolerance) to prevent false triggering. Exceeding VWM risks elevated ID (>100 µA), thermal runaway, or premature wear. The MDA3KP7.5AE3 is therefore optimized for 5 V systems with margin, not 12 V rails.
Does MDA3KP7.5AE3 meet IEC61000-4-5 Class 4 requirements with a 42 Ω source impedance?
Yes, MDA3KP7.5AE3 meets IEC61000-4-5 Class 4 (4 kV test level) when tested with a 42 Ω source impedance, as confirmed in the "APPLICATIONS / BENEFITS" section on page 1 of RF01243. Its 3000 W peak pulse power rating and 232.6 A IPP provide sufficient margin to sustain the 4 kV open-circuit voltage waveform without degradation, making it suitable for mains-connected industrial equipment.
MDA3KP7.5AE3 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:
- -
MDA3KP7.5AE3 FAQ
1.How can I place an order for MDA3KP7.5AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MDA3KP7.5AE3 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 MDA3KP7.5AE3 reliable?
The price and inventory of MDA3KP7.5AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MDA3KP7.5AE3 is usually 5 days.
3.What payment methods are accepted for MDA3KP7.5AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MDA3KP7.5AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MDA3KP7.5AE3?
MDA3KP7.5AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MDA3KP7.5AE3 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 MDA3KP7.5AE3?
For technical support, including MDA3KP7.5AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MDA3KP7.5AE3 requirements.
6.How does Aetrix verify that MDA3KP7.5AE3 is sourced from the original manufacturer or authorized distributors?
All MDA3KP7.5AE3 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 MDA3KP7.5AE3 meets industry standards.
7.What is the process for return or replacement of MDA3KP7.5AE3?
All MDA3KP7.5AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MDA3KP7.5AE3, 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 MDA3KP7.5AE3 part is unused and in its original packaging.
Return procedure for MDA3KP7.5AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MDA3KP7.5AE3 Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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