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Microchip Technology MDA3KP11A
- Part No.:
- MDA3KP11A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MDA3KP11A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:8,203
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Product details
Overview
MDA3KP11A 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 11 V reverse standoff voltage (VWM), 12.2–13.5 V breakdown voltage (V(BR)), 18.2 V maximum clamping voltage at 164.8 A peak pulse current, and operates from –55 °C to +150 °C - used in industrial motor drives, telecom power supplies, and railway signaling interfaces.
For engineers reviewing the MDA3KP11A datasheet, MDA3KP11A pinout, MDA3KP11A application, or MDA3KP11A equivalent, key selection criteria include IEC61000-4-5 secondary lightning compliance (Class 1–4 @ 42 Ω), 10/1000 µs surge rating, unidirectional polarity, RoHS-compliant e3 plating, and thermal derating per Figure 3.
Technical Context
The MDA3KP11A employs silicon avalanche diode technology optimized for fast response (<100 ps rise time) and low clamping ratio (VC/VWM ≈ 1.65). Its unidirectional construction enables asymmetric protection on DC-biased lines, with cathode-defined polarity per odd-numbered pins.
It meets MIL-PRF-19500 screening options for high-reliability programs and is surge-tested per JEDEC JESD22-A114E for ESD (±30 kV HBM), while its 3σ lot norm screening ensures tight ID control at VWM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - maximum continuous DC or peak AC voltage the device blocks without conduction |
| V(BR) min/max | 12.2–13.5 V @ 1 mA - guaranteed avalanche onset range defining turn-on threshold |
| VC @ IPP | 18.2 V @ 164.8 A - clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPP | 3000 W @ 10/1000 µs - peak transient power handling capacity under standard waveform |
| ID @ VWM | 5 µA max - leakage current at rated standoff, critical for low-power sensor rail integrity |
| TJ/TSTG | –55 to +150 °C - extended temperature range enabling use in under-hood automotive and outdoor telecom enclosures |
Pinout & Package
MDA3KP11A uses a 3-pin SMC (DO-214AB) surface-mount package with void-free UL94V-0 epoxy body, tin-lead or matte-tin (e3) plating, and polarity defined by dot marking indicating Pin 1 (cathode).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Anode-side connection point; ties to protected line when cathode faces positive rail |
| Pin 2 | Anode | Common anode node shared across internal TVS elements; connects to ground or return path |
| Pin 3 | Cathode | Second cathode terminal - enables dual-line protection in single-package layout |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables robust suppression of IEC61000-4-5 Class 4 surges (4 kV, 42 Ω source) without degradation |
| 10/1000 µs waveform compliance | Validated performance under standardized lightning-induced surge test conditions |
| RoHS-compliant e3 plating | Matte-tin termination ensures solderability and eliminates lead-based process constraints |
| Moisture sensitivity Level 1 | No dry-pack or bake-out required before reflow, reducing manufacturing overhead |
| MIL-PRF-19500 upscreening option | Supports aerospace and defense programs requiring wafer/lot traceability and 3σ ID screening |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensing circuits against inductive kickback from IGBTs and MOSFETs. IC Role / Device Role / Timing Role: Unidirectional TVS clamps transients on isolated DC bias rails upstream of optocouplers and error amplifiers. Use Value: Limits voltage excursion to ≤18.2 V during 164.8 A surges, preserving isolation barrier integrity and preventing latch-up in control ICs. | Use Scenario: Input-stage surge protection on –48 V DC telecom rectifier outputs feeding backplane distribution. IC Role / Device Role / Timing Role: Standoff-rated TVS shunts lightning-induced common-mode transients before DC/DC converters. Use Value: Withstands repeated 3000 W surges while maintaining <5 µA leakage, avoiding false trips in -48 V supervision circuits. |
| Railway Signaling Interfaces | Outdoor Base Station RF Front-Ends |
Use Scenario: Protection of 24 V train control logic inputs exposed to track-induced surges and EFT bursts. IC Role / Device Role / Timing Role: Fast-clamping TVS placed directly at connector entry, referenced to chassis ground. Use Value: Sub-100 ps response ensures clamping before transients propagate into FPGA I/O banks, meeting EN 50121-4 immunity requirements. | Use Scenario: DC bias line protection for GaN PA modules operating from +28 V supplies in LTE/5G remote radio units. IC Role / Device Role / Timing Role: Unidirectional TVS guards amplifier bias rails against antenna-coupled RF energy and switching noise. Use Value: 18.2 V clamping prevents forward-biasing of GaN gate oxides during 10/1000 µs events, extending module lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A | 600 W PPP rating, same VWM and VC, but lower IPP (72.2 A) | Not suitable for IEC61000-4-5 Class 3/4; limited to Class 1/2 or ESD/EFT only | Select SMBJ11A only for space-constrained designs where 3000 W surge capability is not required. |
| SMCJ11A | 1500 W PPP, same package footprint, VC = 18.2 V, IPP = 82.4 A | Meets Class 2 lightning (42 Ω), but fails Class 3/4; lower thermal mass than MDA3KP11A | Choose SMCJ11A for cost-sensitive industrial controls where full 3000 W rating is unnecessary. |
Compared with SMBJ11A and SMCJ11A, the MDA3KP11A delivers double the power-handling margin of SMCJ11A and five times that of SMBJ11A - essential for mission-critical infrastructure where single-event surge survival must be guaranteed across all IEC61000-4-5 classes.
Availability
MDA3KP11A is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and railway signaling interfaces requiring stable component supply across extended product lifecycles.
Supply support for MDA3KP11A 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 harsh-environment systems where MIL-PRF-19500 conformance, wide temperature operation, and repeatable 3000 W surge endurance are mandatory.
FAQ
What is the clamping voltage of the MDA3KP11A at its rated peak pulse current?
The MDA3KP11A has a maximum clamping voltage (VC) of 18.2 V at its rated peak pulse current (IPP) of 164.8 A under 10/1000 µs waveform conditions. This value is measured per JEDEC standards and guarantees predictable voltage limiting during surge events. The MDA3KP11A maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is the MDA3KP11A RoHS compliant?
Yes, the MDA3KP11A is RoHS compliant and marked with the "e3" suffix per Microsemi's part nomenclature. It uses annealed matte-tin plating on terminals, satisfying EU Directive 2011/65/EU and related exemptions. The MDA3KP11A requires no special handling or dry packing due to its IPC/JEDEC J-STD-020B Level 1 moisture sensitivity rating.
How does the MDA3KP11A differ from bidirectional TVS devices like MDA3KP11CA?
The MDA3KP11A is unidirectional and protects only positive-going transients on DC-biased lines, whereas MDA3KP11CA provides symmetrical clamping for AC or bipolar signals. The MDA3KP11A has lower leakage (<5 µA) and higher surge current capability in its intended polarity. Use MDA3KP11A where circuit topology mandates cathode-to-rail configuration - such as protecting +12 V sensor supplies - and avoid it in AC-coupled data lines.
Can the MDA3KP11A be used for IEC61000-4-5 Class 4 lightning surge protection?
Yes, the MDA3KP11A is validated for IEC61000-4-5 Class 4 secondary lightning protection with 42 Ω source impedance, delivering full 3000 W surge capability at 10/1000 µs. Its 18.2 V clamping voltage ensures downstream components see less than 20 V during a 4 kV test event. The MDA3KP11A must be mounted with short, low-inductance traces to ground to preserve its sub-100 ps response time.
What is the thermal derating behavior of the MDA3KP11A above 25 °C?
The MDA3KP11A follows a linear derating curve starting at 25 °C, with peak pulse power decreasing to ~50% at +125 °C (per Figure 3 in RF01243 Rev B). Derating is based on junction temperature, not ambient, so PCB copper area and airflow must be modeled. The MDA3KP11A retains full functionality up to +150 °C storage, but sustained operation above +125 °C requires system-level thermal validation.
MDA3KP11A 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):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 164.8A
- 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:
- -
MDA3KP11A FAQ
1.How can I place an order for MDA3KP11A through Aetrix?
Please submit a Request for Quotation (RFQ) for MDA3KP11A 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 MDA3KP11A reliable?
The price and inventory of MDA3KP11A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MDA3KP11A is usually 5 days.
3.What payment methods are accepted for MDA3KP11A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MDA3KP11A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MDA3KP11A?
MDA3KP11A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MDA3KP11A 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 MDA3KP11A?
For technical support, including MDA3KP11A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MDA3KP11A requirements.
6.How does Aetrix verify that MDA3KP11A is sourced from the original manufacturer or authorized distributors?
All MDA3KP11A 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 MDA3KP11A meets industry standards.
7.What is the process for return or replacement of MDA3KP11A?
All MDA3KP11A units undergo pre-shipment inspection (PSI). If there is an issue with MDA3KP11A, 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 MDA3KP11A part is unused and in its original packaging.
Return procedure for MDA3KP11A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MDA3KP11A Tags
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