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Microchip Technology MXDA3KP33A
- Part No.:
- MXDA3KP33A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP33A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,502
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Product details
Overview
MXDA3KP33A from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array designed for secondary lightning and ESD protection in industrial power interfaces. It features a 33 V standoff voltage (VWM), 36.7–40.6 V breakdown range (V(BR)), 53.3 V clamping voltage at 56.2 A peak pulse current, and operates from –55 °C to +150 °C.
For engineers reviewing the MXDA3KP33A datasheet, MXDA3KP33A pinout, MXDA3KP33A application, or MXDA3KP33A equivalent, this device is selected for high-reliability surge suppression in telecom power feeds, DC motor drive inputs, and PoE-powered equipment where fast clamping (<100 ps response), RoHS-compliant packaging, and MIL-PRF-19500 upscreening capability are critical.
Technical Context
The MXDA3KP33A is a single-channel unidirectional TVS diode optimized for 10/1000 µs surge waveforms per IEC61000-4-5. Its clamping behavior is characterized at IPP = 56.2 A with VC = 53.3 V, and it maintains ID ≤ 2 µA at VWM = 33 V across temperature.
It uses void-free thermosetting epoxy packaging rated UL94V-0, with tin-lead or matte-tin terminations solderable per MIL-STD-750 Method 2026. Polarity is defined by dot marking; Pin 1 is cathode per package layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 33 V - maximum continuous operating voltage before conduction begins |
| V(BR) min/max | 36.7–40.6 V @ 1 mA - ensures reliable turn-on above system peak transients |
| VC @ IPP | 53.3 V @ 56.2 A - limits downstream voltage stress during 3 kW surges |
| PPP | 3000 W @ 10/1000 µs - supports IEC61000-4-5 Class 1–4 secondary lightning testing |
| ID @ VWM | ≤2 µA - negligible leakage in standby, preserving low-power system integrity |
| TJ/TSTG | –55 °C to +150 °C - enables deployment in under-hood automotive or industrial enclosures |
| Response time | <100 ps - clamps ESD events before damage occurs to sensitive ICs |
Pinout & Package
MXDA3KP33A is housed in a surface-mount, void-free thermosetting epoxy case (UL94V-0), with two terminals: Pin 1 (cathode) and Pin 2 (anode). Marking includes date code and part number; polarity indicated by dot on top.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line; conducts surge current to ground when V > V(BR) |
| Pin 2 | Anode | Typically tied to system ground; completes conduction path during overvoltage event |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables compliance with IEC61000-4-5 Class 4 (42 Ω source) for secondary lightning immunity |
| RoHS-compliant (e3) | Meets global environmental regulations without compromising surge performance or thermal reliability |
| MIL-PRF-19500 upscreening option | Supports high-reliability programs requiring lot traceability, 3σ ID screening, and wafer-level conformance |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and bake-out prior to reflow, reducing manufacturing cost and risk |
| Clamping voltage ≤53.3 V | Protects 36 V-rated downstream components (e.g., DC-DC controllers, ADC references) during 56.2 A transients |
Applications
| Industrial Motor Drive Inputs | Telecom Power Feeds |
|---|---|
Use Scenario: DC bus lines feeding brushed/brushless motor drivers exposed to inductive kickback and load dump. IC Role / Device Role / Timing Role: Unidirectional TVS placed between DC+ and chassis ground to clamp positive-going transients. Use Value: Limits voltage excursion to ≤53.3 V during 56.2 A 10/1000 µs surges, preventing gate oxide rupture in MOSFET half-bridges. | Use Scenario: –48 V DC power input of telecom base station cards subjected to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Standoff-rated TVS on primary side of DC-DC converter, referenced to return plane. Use Value: Withstands 3000 W surges while maintaining <2 µA leakage, avoiding false trips in always-on monitoring circuits. |
| PoE-Powered Devices | Industrial PLC Analog Input Protection |
Use Scenario: 4-pair PoE (IEEE 802.3bt) powered end devices such as IP cameras or wireless access points. IC Role / Device Role / Timing Role: Per-port unidirectional TVS on each data pair and power pair to suppress common-mode surges. Use Value: Fast <100 ps response prevents latch-up in Ethernet PHYs during ESD events per IEC61000-4-2 Level 4. | Use Scenario: 4–20 mA current loop inputs in programmable logic controllers exposed to field wiring transients. IC Role / Device Role / Timing Role: TVS placed across input terminals to shunt induced RF and switching noise before signal conditioning stage. Use Value: 33 V VWM aligns with typical loop supply headroom; 53.3 V clamping protects op-amp front-end from overvoltage saturation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A | 600 W PPP rating, same VWM and V(BR) range, SMA package (smaller footprint, lower thermal mass) | Lower energy handling; suitable only for ESD/EFT, not IEC61000-4-5 Class 4 | Select SMAJ33A when board space is constrained and surge threat level is limited to IEC61000-4-2/4-4. |
| SMCJ33A | 1500 W PPP, same VWM/V(BR), SMC package (larger than MDA but smaller than TO-277) | Half the peak pulse power; insufficient for 42 Ω IEC61000-4-5 Class 4 testing | Choose SMCJ33A for cost-sensitive industrial controls where full 3 kW immunity is not required. |
Compared with SMAJ33A and SMCJ33A, the MXDA3KP33A delivers double the pulse power of SMCJ33A and five times that of SMAJ33A-enabling robust secondary lightning protection in mission-critical infrastructure without redesigning PCB layout or thermal management.
Availability
MXDA3KP33A is available at Aetrix Electronics and suitable for industrial motor drives, telecom power systems, PoE-powered endpoints, and PLC analog input modules requiring stable component supply and long-term lifecycle support.
Supply support for MXDA3KP33A 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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The MDA3KP series was developed specifically for high-energy transient suppression in harsh-environment power interfaces, emphasizing MIL-PRF-19500 upscreening readiness and IEC61000-4-5 compliance.
FAQ
What is the clamping voltage of the MXDA3KP33A at its rated peak pulse current?
The MXDA3KP33A has a maximum clamping voltage (VC) of 53.3 V at its rated peak pulse current (IPP) of 56.2 A under 10/1000 µs waveform conditions. This value is measured per standard test methods and guarantees predictable voltage limiting during surge events, protecting downstream 36 V-rated components. The MXDA3KP33A maintains this clamping performance across its full operating temperature range.
Is the MXDA3KP33A RoHS-compliant and what does the 'e3' suffix indicate?
Yes, the MXDA3KP33A is RoHS-compliant, as confirmed by the 'e3' designation in its full part number. The 'e3' suffix indicates annealed matte-tin plating per J-STD-609, meeting lead-free soldering requirements without compromising solderability or corrosion resistance. This compliance applies to both standard and MIL-PRF-19500 upscreened versions of the MXDA3KP33A.
Can the MXDA3KP33A be used for bidirectional transient suppression?
No, the MXDA3KP33A is unidirectional only. Its part number lacks the 'C' suffix (e.g., MXDA3KP33CA), which denotes bidirectional construction in the MDA3KP family. For AC-coupled or dual-polarity protection, the MXDA3KP33CA must be selected instead. Using the MXDA3KP33A in bidirectional configurations risks failure during negative transients.
What is the standoff voltage rating and why is it important for selecting the MXDA3KP33A?
The MXDA3KP33A has a rated working standoff voltage (VWM) of 33 V, meaning it remains non-conductive below this DC or peak AC voltage. This rating ensures compatibility with 33 V nominal systems while providing margin above typical operating peaks. Selecting a VWM too close to system voltage risks premature conduction; the MXDA3KP33A's 33 V VWM is ideal for 24 V DC systems with 30 V transients or 36 V supplies with headroom.
Does the MXDA3KP33A require special handling or baking before reflow soldering?
No, the MXDA3KP33A has IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it may be stored indefinitely at ambient conditions without dry packing or baking. This eliminates pre-reflow bake cycles, reduces assembly cost, and avoids thermal stress on the device. The MXDA3KP33A is qualified for standard Pb-free reflow profiles up to 260 °C peak solder temperature.
MXDA3KP33A 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):
- 33V
- Voltage - Breakdown (Min):
- 36.7V
- Voltage - Clamping (Max) @ Ipp:
- 53.3V
- Current - Peak Pulse (10/1000µs):
- 56.2A
- 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:
- -
MXDA3KP33A FAQ
1.How can I place an order for MXDA3KP33A through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP33A 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 MXDA3KP33A reliable?
The price and inventory of MXDA3KP33A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP33A is usually 5 days.
3.What payment methods are accepted for MXDA3KP33A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXDA3KP33A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXDA3KP33A?
MXDA3KP33A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXDA3KP33A 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 MXDA3KP33A?
For technical support, including MXDA3KP33A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP33A requirements.
6.How does Aetrix verify that MXDA3KP33A is sourced from the original manufacturer or authorized distributors?
All MXDA3KP33A 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 MXDA3KP33A meets industry standards.
7.What is the process for return or replacement of MXDA3KP33A?
All MXDA3KP33A units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP33A, 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 MXDA3KP33A part is unused and in its original packaging.
Return procedure for MXDA3KP33A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXDA3KP33A Tags
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