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Microchip Technology MXDA3KP40AE3
- Part No.:
- MXDA3KP40AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP40AE3.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:8,780
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Product details
Overview
MXDA3KP40AE3 from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array with 40 V standoff voltage (VWM), 44.4–49.1 V breakdown voltage (V(BR)), and 64.5 V maximum clamping voltage (VC) at 46.4 A peak pulse current. 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 DC power rails.
For engineers reviewing the MXDA3KP40AE3 datasheet, MXDA3KP40AE3 pinout, MXDA3KP40AE3 application, or MXDA3KP40AE3 equivalent, key selection criteria include its 40 V working voltage, 64.5 V clamping performance at 46.4 A, RoHS-compliant e3 marking, -55°C to +150°C operating range, and unidirectional polarity for DC-biased protection circuits.
Technical Context
The MXDA3KP40AE3 operates as a silicon avalanche diode-based TVS array optimized for high-energy transient suppression in industrial and telecom power interfaces. Its sub-100 ps response time enables effective ESD mitigation, while its 10/1000 μs waveform-rated 3000 W peak pulse power supports robust surge handling per IEC61000-4-5.
Designed for surface-mount vertical mounting, it features tin-lead or matte-tin terminations compliant with MIL-STD-750 Method 2026, void-free UL94V-0 epoxy packaging, and traceable wafer/assembly lot control per high-reliability screening protocols referenced in MIL-PRF-19500.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 40 V - Maximum continuous DC operating voltage before clamping begins |
| V(BR) min/max | 44.4–49.1 V @ 1 mA - Ensures reliable avalanche conduction onset across temperature and process variation |
| VC @ IPP | 64.5 V @ 46.4 A - Clamping voltage limits downstream component stress during 10/1000 μs surges |
| IPP | 46.4 A - Peak impulse current capability derived from 3000 W rating at 10/1000 μs waveform |
| ID @ VWM | 2 μA max - Ultra-low leakage preserves efficiency in high-impedance bias networks |
| TJ/TSTG | -55°C to +150°C - Supports operation in harsh environments including automotive under-hood and industrial motor drives |
Pinout & Package
MXDA3KP40AE3 uses a 2-pin surface-mount vertical package (case outline per RF01243 Page 6) with cathode-anode polarity: Pin 1 = cathode, Pin 2 = anode. Marking includes date code and part number; polarity defined by dot on top of package.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line (e.g., +VDC rail); conducts when transient exceeds V(BR) |
| Pin 2 | Anode | Connected to reference ground; completes current path during clamping event |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables single-device protection against severe IEC61000-4-5 Class 4 surges (42 Ω source) |
| Unidirectional construction | Optimized for DC-biased lines where reverse conduction must be blocked |
| RoHS-compliant e3 marking | Meets global environmental compliance without lead-free reflow compatibility compromises |
| MIL-PRF-19500 screening option | Supports high-reliability programs requiring lot traceability and 3σ standby current screening |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
Use Scenario: Protection of 48 V DC input stages against inductive kickback from relay coils and contactor switching. IC Role / Device Role / Timing Role: TVS array clamps transients to ≤64.5 V within <100 ps to prevent MOSFET gate oxide damage. Use Value: Eliminates need for multi-stage RC snubbers while maintaining 40 V nominal rail integrity. | Use Scenario: Surge suppression on central office -48 V DC power distribution to remote radio units. IC Role / Device Role / Timing Role: Unidirectional TVS shunts IEC61000-4-5 42 Ω Class 4 surges (4 kV) away from DC-DC converters. Use Value: 46.4 A IPP rating ensures single-device compliance without parallel devices or derating. |
| Automotive Body Control Modules | Renewable Energy Inverters |
Use Scenario: Input protection for 12 V/24 V microcontroller power supplies exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Fast-clamping TVS limits voltage overshoot during 100 ms load dump events to safe levels. Use Value: -55°C to +150°C junction range supports under-hood placement without thermal derating. | Use Scenario: DC link protection in solar string inverters subject to lightning-induced surges on PV input. IC Role / Device Role / Timing Role: Absorbs 3000 W energy from 10/1000 μs transients before upstream fuses open. Use Value: 64.5 V clamping prevents overvoltage failure of 600 V IGBT gate drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ40A | 600 W rating (vs. 3000 W); 64.5 V VC same; 200 W peak pulse power at 10/1000 μs | Not suitable for IEC61000-4-5 Class 4; limited to Class 2/3 or lower-energy ESD/EFT | Select SMBJ40A only for space-constrained designs where surge energy is below 100 mJ |
| SMCJ40A | 1500 W rating (vs. 3000 W); identical 40 V VWM and 64.5 V VC; 1500 W PPP at 10/1000 μs | Meets IEC61000-4-5 Class 3 (42 Ω), but not Class 4; requires parallel devices for full 3000 W handling | Choose SMCJ40A when board area allows dual-device layout or when Class 3 compliance suffices |
Compared with SMBJ40A and SMCJ40A, MXDA3KP40AE3 delivers 2× and 2× higher peak pulse power respectively, enabling single-device Class 4 lightning protection without layout redesign or thermal stacking-critical for high-density industrial power modules.
Availability
MXDA3KP40AE3 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, automotive body control modules, and renewable energy inverters requiring stable component supply across extended product lifecycles.
Supply support for MXDA3KP40AE3 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 and mixed-signal ICs, radiation-hardened components, and discrete protection devices.
The MDA3KP series was developed for mission-critical transient suppression in aerospace, defense, and industrial infrastructure systems where failure tolerance and long-term parametric stability are mandatory.
FAQ
What is the clamping voltage of MXDA3KP40AE3 at its rated peak pulse current?
The MXDA3KP40AE3 has a maximum clamping voltage (VC) of 64.5 V at 46.4 A peak pulse current (IPP), measured under standard 10/1000 μs waveform conditions. This value ensures downstream circuitry remains within safe operating voltage limits during surge events. The MXDA3KP40AE3 maintains this clamping performance across its full operating temperature range of -55°C to +150°C.
Is MXDA3KP40AE3 RoHS-compliant, and what does the 'e3' suffix indicate?
Yes, MXDA3KP40AE3 is RoHS-compliant, as confirmed by the 'e3' suffix in its part number per Microsemi's nomenclature guide. The 'e3' designation specifies annealed matte-tin plating and full compliance with EU Directive 2011/65/EU, including lead content below 0.1% by weight. The MXDA3KP40AE3 meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity without dry pack requirements.
Can MXDA3KP40AE3 be used for bidirectional transient protection?
No, MXDA3KP40AE3 is unidirectional-its part number lacks the 'C' suffix required for bidirectional variants (e.g., MDA3KP40CA). It conducts only during positive transients relative to ground and blocks reverse voltage. For AC or bipolar signal line protection, a bidirectional variant must be selected. The MXDA3KP40AE3 is intended exclusively for DC power rail protection with defined polarity.
What is the standoff voltage rating of MXDA3KP40AE3, and how does it relate to system design?
The MXDA3KP40AE3 has a rated reverse standoff voltage (VWM) of 40 V, meaning it remains non-conductive up to this DC or peak AC voltage under normal operation. System designers must ensure the maximum continuous operating voltage does not exceed 40 V to avoid premature leakage or thermal runaway. The MXDA3KP40AE3's 44.4–49.1 V breakdown range provides margin above VWM for reliable turn-on during transients.
Does MXDA3KP40AE3 require derating at elevated ambient temperatures?
Yes, MXDA3KP40AE3 requires thermal derating above 25°C ambient, as shown in Figure 3 of the RF01243 datasheet. At 100°C case temperature, its peak pulse power drops to ~65% of the 3000 W rating. Designers must apply appropriate heatsinking or reduce surge duty cycle in high-temperature environments. The MXDA3KP40AE3's -55°C to +150°C junction range supports operation, but power handling scales inversely with temperature.
MXDA3KP40AE3 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):
- 40V
- Voltage - Breakdown (Min):
- 44.4V
- Voltage - Clamping (Max) @ Ipp:
- 64.5V
- Current - Peak Pulse (10/1000µs):
- 46.4A
- 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:
- -
MXDA3KP40AE3 FAQ
1.How can I place an order for MXDA3KP40AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP40AE3 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 MXDA3KP40AE3 reliable?
The price and inventory of MXDA3KP40AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP40AE3 is usually 5 days.
3.What payment methods are accepted for MXDA3KP40AE3?
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Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXDA3KP40AE3?
MXDA3KP40AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXDA3KP40AE3 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 MXDA3KP40AE3?
For technical support, including MXDA3KP40AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP40AE3 requirements.
6.How does Aetrix verify that MXDA3KP40AE3 is sourced from the original manufacturer or authorized distributors?
All MXDA3KP40AE3 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 MXDA3KP40AE3 meets industry standards.
7.What is the process for return or replacement of MXDA3KP40AE3?
All MXDA3KP40AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP40AE3, 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 MXDA3KP40AE3 part is unused and in its original packaging.
Return procedure for MXDA3KP40AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXDA3KP40AE3 Tags
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