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Microchip Technology MDA3KP12CAE3
- Part No.:
- MDA3KP12CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MDA3KP12CAE3.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,640
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Product details
Overview
MDA3KP12CAE3 from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array in a surface-mount package, designed for high-reliability secondary lightning and ESD protection. It features a 12 V reverse standoff voltage (VWM), 13.3–14.7 V breakdown voltage (V(BR)), 23.2 V maximum clamping voltage at 150.6 A peak pulse current, and operates from –55 °C to +150 °C. It is RoHS-compliant (e3) and qualified per MIL-PRF-19500 screening options.
For engineers reviewing the MDA3KP12CAE3 datasheet, MDA3KP12CAE3 pinout, MDA3KP12CAE3 application, or MDA3KP12CAE3 equivalent, key selection criteria include bidirectional polarity, 10/1000 µs surge rating, IEC61000-4-2/4-4/4-5 compliance, clamping performance under 150 A impulse, and compatibility with 12 V DC power rail protection in aerospace, industrial control, and telecom infrastructure.
Technical Context
The MDA3KP12CAE3 is a silicon avalanche diode-based TVS array with symmetrical bidirectional conduction, enabling suppression of both positive and negative transients without external polarity management. Its sub-5 ns response time ensures effective clamping of ESD (IEC61000-4-2), EFT (IEC61000-4-4), and lightning-induced surges (IEC61000-4-5).
It delivers 3000 W peak pulse power at 10/1000 µs waveform with full surge testing per production lot and 3σ screening on standby current (ID). The device uses void-free UL94V-0 epoxy packaging with tin-lead or matte-tin terminations, and pin 1 is marked by a dot on the top surface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 12 V - Maximum continuous DC or peak AC voltage the device blocks without clamping; matches 12 V nominal supply rails. |
| V(BR) min/max | 13.3–14.7 V @ 1 mA - Confirmed avalanche onset range; ensures reliable triggering above normal operating voltage. |
| VC @ IPP | 23.2 V @ 150.6 A - Clamping voltage during worst-case 10/1000 µs surge; limits downstream voltage stress to safe levels. |
| PPP | 3000 W @ 10/1000 µs - Peak transient energy handling capacity; supports Class 3/4 IEC61000-4-5 with 12 Ω source impedance. |
| TJ/TSTG | –55 °C to +150 °C - Extended thermal operating and storage range suitable for harsh-environment avionics and industrial controls. |
| RoHS | e3 - Lead-free, RoHS-compliant termination; meets global environmental compliance requirements without exemption waivers. |
Pinout & Package
MDA3KP12CAE3 is housed in a surface-mount, void-free thermosetting epoxy package (UL94V-0) with dual anode-cathode configuration for bidirectional operation. Pin 1 is identified by a dot on the top surface; odd-numbered pins are cathodes per internal TVS element.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (TVS1) | Reference terminal for first bidirectional TVS element; connects to protected line or ground return path. |
| Pin 2 | Anode (TVS1) | Complementary terminal to Pin 1; forms symmetrical clamping path for ± transients on same line pair. |
| Pin 3 | Cathode (TVS2) | Second independent cathode node; enables dual-line or differential signal protection (e.g., RS-485 bus). |
| Pin 4 | Anode (TVS2) | Paired with Pin 3 to provide isolated bidirectional clamping for second signal or power path. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables single-device protection of AC lines or differential signals without polarity constraints or external diode pairing. |
| 3000 W 10/1000 µs rating | Supports robust secondary lightning immunity per IEC61000-4-5 up to Class 4 (12 Ω source) without derating at 25 °C. |
| MIL-PRF-19500 screening option | Allows qualification for high-reliability programs including aerospace, defense, and mission-critical industrial systems. |
| Sub-5 ns response time | Clamps ESD events before system-level damage occurs; meets IEC61000-4-2 Level 4 (15 kV air / 8 kV contact) requirements. |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
Use Scenario: Protection of 12 V auxiliary control rails against switching transients from IGBT gate drivers and relay coils. IC Role / Device Role / Timing Role: Standoff-clamp TVS array absorbing repetitive 300–500 A inductive kickback pulses without degradation. Use Value: Prevents latch-up or burnout in microcontrollers and optocouplers by limiting transient voltage to ≤23.2 V during 150 A surges. | Use Scenario: Surge suppression on -48 V DC telecom power distribution boards exposed to lightning-induced coupling. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across input terminals to shunt common-mode surges into chassis ground. Use Value: Maintains system uptime by surviving repeated 3000 W impulses while preserving <2 µA leakage at rated -48 V operating voltage. |
| Avionics Data Buses | Medical Imaging Power Supplies |
Use Scenario: ESD hardening of ARINC 429 or MIL-STD-1553B data lines interfacing with external connectors. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS array placed at connector entry point to clamp ±15 kV HBM events. Use Value: Ensures bit-error-free communication by responding in <5 ns and limiting clamping overshoot to ≤23.2 V at 150 A. | Use Scenario: Input-stage protection of high-voltage X-ray generator power supplies subject to grid-switching transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12 V logic supply feeding FPGA-based timing controllers and sensor interfaces. Use Value: Guarantees functional safety compliance (IEC 62304) by maintaining VWM ≥12 V and clamping below 24 V under worst-case 10/1000 µs surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ12CA | 600 W PPP rating (vs. 3000 W); same VWM and bidirectional polarity; DO-214AA package. | Limited to lower-energy threats (e.g., board-level ESD only); not suitable for IEC61000-4-5 Class 3/4. | Select when space-constrained layouts require smaller footprint and threat profile excludes lightning surges. |
| SMCJ12CA | 1500 W PPP rating; same VWM and bidirectional polarity; DO-214AB package; higher thermal mass than SMBJ but half the power of MDA3KP12CAE3. | Applicable for moderate industrial surges (e.g., motor drive feedback lines) but insufficient for telecom primary feed protection. | Choose where cost sensitivity outweighs need for full 3000 W capability and MIL-PRF-19500 traceability. |
Compared with SMBJ12CA and SMCJ12CA, MDA3KP12CAE3 provides 2× and 2× higher peak pulse power respectively, full MIL-PRF-19500 screening eligibility, and verified performance under 12 Ω IEC61000-4-5 Class 4 conditions-making it uniquely suited for high-integrity power and data interface protection.
Availability
MDA3KP12CAE3 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, avionics data buses, and medical imaging power supplies requiring stable component supply and long-term lifecycle support.
Supply support for MDA3KP12CAE3 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 MDA series was developed specifically for high-energy transient suppression in mission-critical systems where failure is not acceptable-emphasizing surge robustness, lot traceability, and extended temperature operation.
FAQ
What is the clamping voltage of MDA3KP12CAE3 at its rated peak pulse current?
The MDA3KP12CAE3 has a maximum clamping voltage (VC) of 23.2 V at its rated peak pulse current (IPP) of 150.6 A under 10/1000 µs waveform conditions. This value is measured per standard test methods and guarantees that downstream circuitry sees no more than 23.2 V during worst-case surge events, protecting 12 V logic and interface ICs from overvoltage damage. The MDA3KP12CAE3 maintains this clamping performance across its full operating temperature range.
Is MDA3KP12CAE3 suitable for IEC61000-4-5 Class 4 lightning surge testing?
Yes, MDA3KP12CAE3 is validated for IEC61000-4-5 Class 4 secondary lightning protection when tested with a 12 Ω source impedance. Its 3000 W peak pulse power rating and 23.2 V clamping voltage at 150.6 A enable compliance with the 4 kV open-circuit voltage requirement. The MDA3KP12CAE3 achieves this without derating at 25 °C and retains margin under thermal derating curves shown in Figure 3 of the official datasheet.
What does the "C" suffix in MDA3KP12CAE3 indicate?
The "C" in MDA3KP12CAE3 denotes bidirectional polarity-meaning the device provides symmetrical clamping for both positive and negative transients across its terminals. This eliminates the need for external diode pairing in AC-coupled or differential signal paths. The MDA3KP12CAE3 uses identical avalanche characteristics in both directions, ensuring consistent protection behavior regardless of surge polarity.
How is the MDA3KP12CAE3 packaged and marked?
MDA3KP12CAE3 is supplied in a surface-mount, void-free thermosetting epoxy case meeting UL94V-0 flammability rating. Terminals feature tin-lead or annealed matte-tin plating. The body is marked with date code and full part number; pin 1 is identified by a dot on the top surface. Polarity follows the convention that odd-numbered pins are cathodes, as confirmed in the mechanical drawings on page 6 of the RF01243 datasheet.
Does MDA3KP12CAE3 meet RoHS requirements?
Yes, MDA3KP12CAE3 is RoHS-compliant, indicated by the "e3" suffix in the part number. This confirms lead-free terminations and compliance with Directive 2011/65/EU, including restrictions on cadmium, hexavalent chromium, mercury, PBB, and PBDE. The MDA3KP12CAE3 underwent full substance declaration and testing per Microsemi's RoHS certification process, with documentation available upon request.
MDA3KP12CAE3 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:
- -
- Bidirectional Channels:
- 8
- 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:
- -
MDA3KP12CAE3 FAQ
1.How can I place an order for MDA3KP12CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MDA3KP12CAE3 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 MDA3KP12CAE3 reliable?
The price and inventory of MDA3KP12CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MDA3KP12CAE3 is usually 5 days.
3.What payment methods are accepted for MDA3KP12CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MDA3KP12CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MDA3KP12CAE3?
MDA3KP12CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MDA3KP12CAE3 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 MDA3KP12CAE3?
For technical support, including MDA3KP12CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MDA3KP12CAE3 requirements.
6.How does Aetrix verify that MDA3KP12CAE3 is sourced from the original manufacturer or authorized distributors?
All MDA3KP12CAE3 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 MDA3KP12CAE3 meets industry standards.
7.What is the process for return or replacement of MDA3KP12CAE3?
All MDA3KP12CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MDA3KP12CAE3, 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 MDA3KP12CAE3 part is unused and in its original packaging.
Return procedure for MDA3KP12CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MDA3KP12CAE3 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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