Microchip Technology MXDA3KP30A
- Part No.:
- MXDA3KP30A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP30A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:

- Shipping:

Inventory:7,646
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Product details
Overview
MXDA3KP30A 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 30 V reverse standoff voltage (VWM), 33.3–36.8 V breakdown voltage (V(BR)), 48.4 V maximum clamping voltage at 62 A peak pulse current, and operates across –55 °C to +150 °C. It is used in industrial power supplies for IEC 61000-4-5 secondary lightning surge suppression.
For engineers reviewing the MXDA3KP30A datasheet, MXDA3KP30A pinout, MXDA3KP30A application, or MXDA3KP30A equivalent, key selection criteria include clamping performance under 10/1000 µs transients, standoff voltage margin relative to system DC rail, thermal derating above 25 °C, and MIL-PRF-19500 upscreening eligibility for aerospace-grade deployments.
Technical Context
The MXDA3KP30A is a single-channel, unidirectional TVS diode optimized for fast clamping of high-energy transients. Its <100 ps response time enables effective ESD (IEC 61000-4-2) and EFT (IEC 61000-4-4) suppression, while its 3000 W peak pulse power rating at 10/1000 µs waveform supports robust secondary lightning protection per IEC 61000-4-5 with 42 Ω, 12 Ω, or 2 Ω source impedances.
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. Polarity is defined by dot marking: Pin 1 is cathode. Standby leakage is ≤2 µA at 30 V, and it undergoes 3σ lot norm screening on ID.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous DC or peak AC voltage the device blocks without conduction. |
| V(BR) min/max | 33.3–36.8 V @ 1 mA - Ensures reliable turn-on above operating rail while avoiding false triggering. |
| VC @ IPP | 48.4 V @ 62 A - Clamped voltage seen by protected circuit during worst-case 10/1000 µs surge. |
| PPP | 3000 W @ 10/1000 µs - Sustains high-energy surges common in industrial mains and motor drive environments. |
| ID @ VWM | ≤2 µA - Negligible leakage current preserves efficiency in low-power standby modes. |
| TJ/TSTG | –55 °C to +150 °C - Supports operation in extended-temperature industrial and automotive under-hood applications. |
Pinout & Package
MXDA3KP30A is housed in a surface-mount, 2-pin DO-214AB (SMC) package with void-free UL94V-0 epoxy body, matte-tin or tin-lead terminations, and polarity indicated by a dot marking Pin 1 (cathode).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line; conducts surge current to ground when clamping threshold exceeded. |
| Pin 2 | Anode | Connected to system ground reference; completes current path during transient event. |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables protection against high-energy lightning-induced surges without degradation in industrial 24/48 V DC systems. |
| Clamping voltage ≤48.4 V | Keeps downstream ICs (e.g., microcontrollers, gate drivers) within safe absolute maximum ratings during 62 A transients. |
| MIL-PRF-19500 upscreening option | Supports qualification for defense/aerospace programs requiring lot traceability, burn-in, and parametric screening. |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints-enables direct placement after opening sealed tray. |
Applications
| Industrial Power Supply Protection | Motor Drive Control Board |
|---|---|
Use Scenario: 48 V DC input stage of programmable logic controller (PLC) power module exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between input rail and ground, responding within <100 ps to limit transient excursions. Use Value: Prevents latch-up or permanent damage to upstream DC-DC controllers and downstream 3.3 V/5 V LDOs during 3 kV/500 A surge events. | Use Scenario: Gate driver supply rail in 3-phase inverter where IGBT switching induces high dV/dt coupling. IC Role / Device Role / Timing Role: Unidirectional TVS shunting coupled transients from isolated gate supply to chassis ground. Use Value: Maintains gate voltage integrity below ±20 V threshold, preventing spurious IGBT turn-on and shoot-through failure. |
| Telecom Remote Radio Unit | Railway Signaling Interface |
Use Scenario: DC power feed (–48 V) to outdoor RRH unit subjected to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: First-line transient suppressor on main power entry before DC-DC conversion and PMIC regulation. Use Value: Meets IEC 61000-4-5 Class 4 (42 Ω source) requirements with clamping headroom below 50 V absolute max rating of downstream converters. | Use Scenario: 24 V signaling interface between track-side sensors and centralized control cabinet in EN 50121-4-compliant railway systems. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; MXDA3KP30A used as unidirectional clamp on positive rail only. Use Value: Provides repeatable 3000 W surge handling across 100,000+ cycles, validated per MIL-PRF-19500 screening for mission-critical uptime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A | 600 W PPP rating, same VWM and VC, but lower IPP (32.4 A vs. 62 A) | Suitable for lower-energy ESD/EFT-only use; insufficient for IEC 61000-4-5 Class 3/4 lightning testing | Select SMBJ30A only if system-level surge stress is limited to ≤600 W and layout space is constrained. |
| 1.5KE30A | Through-hole TO-218 package, identical electrical specs, higher thermal mass but no SMT compatibility | Used in legacy designs or high-vibration environments where mechanical anchoring outweighs board space savings | Choose 1.5KE30A when rework tolerance, manual assembly, or PCB flex resistance is prioritized over automated SMT throughput. |
Compared with SMBJ30A and 1.5KE30A, MXDA3KP30A delivers 5× higher surge power handling in an SMT package, enabling compact, high-reliability protection for next-generation industrial and transportation electronics without compromising on IEC 61000-4-5 compliance.
Availability
MXDA3KP30A is available at Aetrix Electronics and suitable for industrial power supplies, motor drive control boards, telecom remote radio units, and railway signaling interfaces requiring stable component supply and long-term lifecycle support.
Supply support for MXDA3KP30A 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 developed to deliver MIL-qualified transient suppression in surface-mount form, targeting applications where legacy through-hole TVS devices could not meet density, thermal, or automation requirements.
FAQ
What is the clamping voltage of MXDA3KP30A at its rated peak pulse current?
The MXDA3KP30A has a maximum clamping voltage (VC) of 48.4 V at its rated peak pulse current (IPP) of 62 A under 10/1000 µs waveform conditions. This value is measured per standard test methods and ensures protected circuits remain within safe operating limits during high-energy transients. The MXDA3KP30A maintains this clamping performance across its full operating temperature range.
Is MXDA3KP30A RoHS compliant?
Yes, MXDA3KP30A is RoHS compliant, indicated by the "e3" suffix in its full manufacturer marking. It uses annealed matte-tin plating on terminations and meets lead-free soldering requirements per JEDEC J-STD-020B. The package material is void-free thermosetting epoxy rated UL94V-0, with no restricted substances exceeding RoHS thresholds.
Can MXDA3KP30A be used for bidirectional transient protection?
No, MXDA3KP30A is a unidirectional TVS device, as confirmed by its part number suffix "A" (not "C") and polarity marking: Pin 1 is cathode. For bidirectional protection, Microsemi offers the MXDA3KP30CA variant. Using MXDA3KP30A in reverse-biased configurations risks permanent breakdown and must be avoided in AC-coupled or dual-polarity signal paths.
What is the maximum standoff voltage rating for MXDA3KP30A?
The maximum reverse standoff voltage (VWM) for MXDA3KP30A is 30 V. This is the highest continuous DC or peak AC voltage the device can block without entering conduction. System designers must ensure that the nominal operating voltage-including ripple and tolerance-remains at or below 30 V to prevent premature leakage or thermal runaway. The MXDA3KP30A's V(BR) starts at 33.3 V, providing essential margin.
Does MXDA3KP30A require dry pack storage or special handling before reflow?
No, MXDA3KP30A has IPC/JEDEC J-STD-020B moisture sensitivity level (MSL) 1, meaning it does not require dry pack storage or floor-life tracking. It can be removed from sealed packaging and placed directly into reflow soldering processes without baking. This simplifies manufacturing logistics and reduces risk of moisture-related popcorning during assembly-key for high-yield SMT production of MXDA3KP30A.
MXDA3KP30A 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):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 62A
- 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:
- -
MXDA3KP30A FAQ
1.How can I place an order for MXDA3KP30A through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP30A 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 MXDA3KP30A reliable?
The price and inventory of MXDA3KP30A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP30A is usually 5 days.
3.What payment methods are accepted for MXDA3KP30A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXDA3KP30A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXDA3KP30A?
MXDA3KP30A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXDA3KP30A 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 MXDA3KP30A?
For technical support, including MXDA3KP30A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP30A requirements.
6.How does Aetrix verify that MXDA3KP30A is sourced from the original manufacturer or authorized distributors?
All MXDA3KP30A 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 MXDA3KP30A meets industry standards.
7.What is the process for return or replacement of MXDA3KP30A?
All MXDA3KP30A units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP30A, 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 MXDA3KP30A part is unused and in its original packaging.
Return procedure for MXDA3KP30A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXDA3KP30A Tags

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