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Microchip Technology MXDA3KP12AE3
- Part No.:
- MXDA3KP12AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP12AE3.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,564
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Product details
Overview
MXDA3KP12AE3 from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array with 12 V standoff voltage (VWM), 13.3–14.7 V breakdown voltage (V(BR)), and 19.9 V maximum clamping voltage (VC) at 150.6 A peak pulse current. It provides secondary lightning protection per IEC61000-4-5 (42 Ω, 12 Ω, and 2 Ω source impedances), ESD/EFT suppression per IEC61000-4-2/4-4, and inductive switching transient protection in industrial power interfaces.
For engineers reviewing the MXDA3KP12AE3 datasheet, MXDA3KP12AE3 pinout, MXDA3KP12AE3 application, or MXDA3KP12AE3 equivalent, key selection criteria include its 12 V working voltage rating, sub-100 ps response time, RoHS-compliant e3 termination, 150.6 A surge capability at 10/1000 µs, and compatibility with MIL-PRF-19500 high-reliability screening options.
Technical Context
The MXDA3KP12AE3 is a single-channel unidirectional TVS diode designed for robust overvoltage protection in DC power rails and signal lines. Its silicon avalanche structure delivers <100 ps response time and clamps transients to ≤19.9 V at 150.6 A, enabling protection of downstream MOSFETs, controllers, and interface ICs against fast-rising surges.
It operates across –55 °C to +150 °C junction temperature, supports 260 °C soldering per MIL-STD-750 Method 2026, and features void-free UL94V-0 epoxy packaging with tin-lead or matte-tin plating. Polarity is defined by dot marking: Pin 1 is cathode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 12 V - Maximum continuous DC or peak AC voltage the device blocks without conduction |
| V(BR) min/max | 13.3–14.7 V @ 1 mA - Ensures reliable avalanche initiation above normal operating voltage |
| VC @ IPP | 19.9 V @ 150.6 A - Clamping voltage during full 3000 W 10/1000 µs surge, limiting stress on protected circuitry |
| PPP | 3000 W @ 10/1000 µs - Peak surge power handling capacity validated per Figure 1 and Table on Page 3 |
| ID @ VWM | 5 µA max - Low leakage ensures minimal power loss and no interference with 12 V rail monitoring |
| TJ/TSTG | –55 to +150 °C - Enables deployment in under-hood automotive, industrial motor drives, and outdoor telecom equipment |
Pinout & Package
MXDA3KP12AE3 uses a 2-pin surface-mount DO-214AB (SMC) package with cathode marked by a dot on the top surface. Pin 1 is cathode; Pin 2 is anode. The package measures 21.03–22.05 mm × 6.86–7.87 mm × 8.64–9.65 mm (L×W×H) and weighs ~5 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line (e.g., 12 V rail); conducts when transient exceeds V(BR) |
| Pin 2 | Anode | Connected to ground reference; completes clamping path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Validated at 10/1000 µs waveform per Figure 1 - sustains high-energy lightning-induced surges without failure |
| RoHS-compliant e3 termination | Matte-tin plating per MIL-STD-750 Method 2026 - ensures reliable solderability and long-term intermetallic stability |
| MIL-PRF-19500 screening option | Available with wafer/lot traceability and 3σ standby current screening - meets aerospace and defense reliability requirements |
| Level 1 moisture sensitivity | No dry pack required per IPC/JEDEC J-STD-020B - simplifies SMT handling and eliminates bake-out steps |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of 12 V auxiliary control rails against inductive kickback from relay coils and contactors. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient energy before it reaches MCU I/O or gate drivers. Use Value: Limits voltage excursion to ≤19.9 V during 150.6 A surges, preventing latch-up or permanent damage to 3.3 V/5 V logic interfaces. | Use Scenario: Secondary lightning surge protection on -48 V DC input front-ends of base station power modules. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing IEC61000-4-5 Class 3 surges (12 Ω source) without degradation. Use Value: Maintains 12 V working margin above nominal rail while clamping to 19.9 V - compatible with telecom rectifier output tolerances. |
| Automotive Body Control Modules | Industrial PLC I/O Cards |
Use Scenario: Protection of LIN bus transceivers and sensor supply lines exposed to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Fast-response TVS suppressing EFT bursts and ESD events per IEC61000-4-4/4-2. Use Value: Sub-100 ps turn-on ensures clamping occurs before transceiver ESD protection diodes activate, reducing cumulative stress. | Use Scenario: Input protection for 24 V digital input channels subjected to field-wiring induced transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on optocoupler input side, shunting surge current to ground. Use Value: 5 µA max ID at 12 V VWM prevents false triggering of input comparators during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A | 600 W PPP rating, 13.3 V V(BR) min, 19.9 V VC @ 32.4 A - lower surge capacity and smaller package (DO-214AC) | Not suitable for IEC61000-4-5 Class 3/4 or 3000 W lightning events; limited to low-energy ESD/EFT | Select SMAJ12A only for space-constrained consumer-grade designs where 600 W surge margin suffices. |
| SMCJ12A | 1500 W PPP rating, 13.3 V V(BR) min, 19.9 V VC @ 76.3 A - half the power rating of MXDA3KP12AE3, same DO-214AB package | Meets IEC61000-4-5 Class 2 (2 Ω source) but not Class 3/4 with 12 Ω or 42 Ω sources | Choose SMCJ12A for cost-sensitive industrial controls requiring proven 1500 W performance and identical footprint. |
Compared with SMAJ12A and SMCJ12A, MXDA3KP12AE3 delivers double the surge power handling of SMCJ12A and five times that of SMAJ12A - enabling single-device compliance with stringent IEC61000-4-5 Class 3/4 secondary lightning tests where higher energy absorption is non-negotiable.
Availability
MXDA3KP12AE3 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive body control modules, and industrial PLC I/O cards requiring stable component supply and long-term lifecycle support.
Supply support for MXDA3KP12AE3 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, RF solutions, and discrete protection devices.
The MDA3KP series was developed for mission-critical overvoltage protection in aerospace, defense, and industrial systems where MIL-PRF-19500 screening, wide temperature operation, and 3000 W surge immunity are mandatory.
FAQ
What is the clamping voltage of MXDA3KP12AE3 at its rated peak pulse current?
The MXDA3KP12AE3 has a maximum clamping voltage (VC) of 19.9 V at its rated peak pulse current (IPP) of 150.6 A under 10/1000 µs waveform conditions. This value is measured per the test method defined in the RF01243 datasheet and ensures protected circuits experience no more than 19.9 V during worst-case surge events. The MXDA3KP12AE3 maintains this clamping performance across its full operating temperature range.
Is MXDA3KP12AE3 RoHS-compliant and what does the 'e3' suffix indicate?
Yes, MXDA3KP12AE3 is RoHS-compliant, as confirmed by the 'e3' suffix in its part number per Microsemi's nomenclature guide on Page 2 of RF01243. The 'e3' designation specifies annealed matte-tin plating on terminals, meeting JEDEC J-STD-020B Level 1 moisture sensitivity and MIL-STD-750 Method 2026 solderability requirements. This makes MXDA3KP12AE3 suitable for lead-free reflow assembly without dry-pack preconditioning.
Can MXDA3KP12AE3 be used for bidirectional transient protection?
No, MXDA3KP12AE3 is a unidirectional TVS device, as indicated by the absence of 'C' in its part number. Bidirectional variants (e.g., MXDA3KP12CE3) are available separately with symmetrical clamping for AC-coupled or floating signal lines. Using MXDA3KP12AE3 in bidirectional configurations risks forward conduction during negative transients, potentially damaging the device or failing to protect the circuit.
What is the standoff voltage rating and why is it critical for MXDA3KP12AE3 selection?
The MXDA3KP12AE3 has a rated reverse standoff voltage (VWM) of 12 V, meaning it remains non-conductive up to 12 V DC or peak AC. This rating must exceed the maximum normal operating voltage of the protected line to prevent leakage or thermal runaway. Selecting MXDA3KP12AE3 for a 12 V rail ensures margin above typical 12.6 V battery float voltages while maintaining low 5 µA standby current at VWM.
Does MXDA3KP12AE3 meet IEC61000-4-5 secondary lightning protection requirements?
Yes, MXDA3KP12AE3 is validated for secondary lightning protection per IEC61000-4-5 with 42 Ω, 12 Ω, and 2 Ω source impedances - supporting Class 1–4 (42 Ω), Class 1–3 (12 Ω), and Class 2 (2 Ω) testing per the Applications/Benefits section on Page 1 of RF01243. Its 3000 W PPP rating and 19.9 V clamping enable compliance where higher energy absorption is required compared to standard 600 W or 1500 W TVS devices.
MXDA3KP12AE3 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):
- 12V
- Voltage - Breakdown (Min):
- 13.3V
- Voltage - Clamping (Max) @ Ipp:
- 19.9V
- Current - Peak Pulse (10/1000µs):
- 150.6A
- 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:
- -
MXDA3KP12AE3 FAQ
1.How can I place an order for MXDA3KP12AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP12AE3 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 MXDA3KP12AE3 reliable?
The price and inventory of MXDA3KP12AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP12AE3 is usually 5 days.
3.What payment methods are accepted for MXDA3KP12AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXDA3KP12AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXDA3KP12AE3?
MXDA3KP12AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXDA3KP12AE3 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 MXDA3KP12AE3?
For technical support, including MXDA3KP12AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP12AE3 requirements.
6.How does Aetrix verify that MXDA3KP12AE3 is sourced from the original manufacturer or authorized distributors?
All MXDA3KP12AE3 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 MXDA3KP12AE3 meets industry standards.
7.What is the process for return or replacement of MXDA3KP12AE3?
All MXDA3KP12AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP12AE3, 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 MXDA3KP12AE3 part is unused and in its original packaging.
Return procedure for MXDA3KP12AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXDA3KP12AE3 Tags
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