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Microchip Technology MDA3KP9.0A
- Part No.:
- MDA3KP9.0A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MDA3KP9.0A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:8,683
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Product details
Overview
MDA3KP9.0A from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array with 9.0 V standoff voltage (VWM), 10.0–11.1 V breakdown voltage (V(BR)), and 15.4 V maximum clamping voltage (VC) at 194.8 A peak pulse current (IPP). It delivers secondary lightning protection per IEC61000-4-5 (2 Ω, Class 4), ESD/EFT suppression per IEC61000-4-2/4-4, and inductive switching transient protection in power supply inputs and DC bus lines.
For engineers reviewing the MDA3KP9.0A datasheet, MDA3KP9.0A pinout, MDA3KP9.0A application, or MDA3KP9.0A equivalent, this page provides verified electrical parameters, package dimensions, IEC-compliant surge capability, polarity marking, and RoHS-compliant tin-plated terminals - all confirmed for the exact MDA3KP9.0A variant within the MDA3KP6.0A–MDA3KP40A family.
Technical Context
The MDA3KP9.0A operates as a unidirectional avalanche diode-based TVS, designed for fast-clamping (<100 ps response) of high-energy transients on DC power rails. Its 9.0 V VWM ensures compatibility with 5 V–9 V logic-supplied systems while maintaining margin above nominal operating voltage.
It meets MIL-PRF-19500 screening options for high-reliability applications and is surge-tested per 10/1000 µs waveform with 3000 W peak pulse power rating. The device uses void-free UL94V-0 epoxy packaging and features odd-numbered pins as cathodes, consistent with its discrete dual-diode array configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous DC operating voltage before conduction begins; sets minimum system voltage margin for reliable standby operation. |
| V(BR) min/max | 10.0–11.1 V @ I(BR) - Confirmed avalanche onset range; guarantees turn-on before downstream IC damage thresholds in 9 V rail protection. |
| VC @ IPP | 15.4 V @ 194.8 A - Clamped voltage during full 3000 W transient; defines worst-case overvoltage seen by protected load. |
| ID @ VWM | 10 µA - Ultra-low leakage at rated standoff; prevents measurable power loss or bias shift in low-current sensor or control circuits. |
| PPP | 3000 W @ 10/1000 µs - Peak power handling per standard lightning surge waveform; validates compliance with IEC61000-4-5 Class 4 (2 Ω source). |
| TJ/TSTG | −55 to +150 °C - Extended thermal range supports under-hood automotive, industrial motor drives, and outdoor telecom equipment. |
Pinout & Package
MDA3KP9.0A is housed in a surface-mount, void-free thermosetting epoxy package (UL94V-0) with tin-lead or matte-tin plating. Dimensions: 21.03 × 6.86 × 8.64 mm (L × W × H), weight ≈5 g. Pin 1 identified by dot marking; odd-numbered pins are cathodes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode of Channel 1 | Connected to protected line (e.g., +12 V input); clamps positive transients to ground when voltage exceeds V(BR). |
| Pin 2 | Anode of Channel 1 | Common anode tied to system ground; forms unidirectional path from line-to-ground during overvoltage events. |
| Pin 3 | Cathode of Channel 2 | Second independent clamping channel; enables dual-rail or redundant protection without external splitting. |
| Pin 4 | Anode of Channel 2 | Shared ground return with Pin 2; allows compact layout for dual-line protection (e.g., VCC and enable signal). |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Validated clamping performance under IEC61000-4-5 2 Ω Class 4 surge conditions without degradation or thermal runaway. |
| 10.0–11.1 V breakdown range | Tight V(BR) tolerance ensures predictable turn-on across temperature and lot variation, critical for protecting 9 V logic interfaces. |
| 15.4 V clamping at 194.8 A | Guaranteed upper limit on transient overvoltage delivered to downstream components such as DC-DC controllers or microcontrollers. |
| RoHS-compliant e3 marking | Matte-tin terminal plating meets lead-free soldering requirements and eliminates Pb-related reliability concerns in high-temp reflow. |
| MIL-PRF-19500 screening option | Enables wafer-level traceability, 3σ lot norm ID screening, and conformance inspection for aerospace and defense programs. |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
Use Scenario: Protection of 24 V DC bus against inductive kickback from relay coils and contactor switching in PLC I/O modules. IC Role / Device Role / Timing Role: Unidirectional TVS array clamping positive transients to ground on both power and control lines simultaneously. Use Value: Prevents latch-up or gate oxide damage in MOSFET drivers and isolators by limiting transient voltage to ≤15.4 V during 194.8 A surges. | Use Scenario: Surge protection on −48 V telecom power feed lines exposed to lightning-induced coupling in central office cabinets. IC Role / Device Role / Timing Role: Dual-channel unidirectional clamp referenced to system ground, absorbing differential-mode energy from coupled surges. Use Value: Maintains uninterrupted service during IEC61000-4-5 Class 4 (2 Ω) events by suppressing 3000 W transients without failure or parameter shift. |
| Automotive Body Control Modules | Medical Imaging Power Supplies |
Use Scenario: Input protection for 9 V–12 V MCU power rails in BCMs subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Fast-response (sub-100 ps) TVS array placed at connector entry point to shunt energy before reaching LDOs and CAN transceivers. Use Value: Ensures functional safety compliance by clamping transients below 15.4 V - well under 20 V absolute max ratings of typical automotive MCUs. | Use Scenario: Protection of high-precision ±15 V analog supply rails in MRI gradient amplifier stages against EFT bursts and RF coupling. IC Role / Device Role / Timing Role: Dual-rail unidirectional TVS providing independent clamping on each rail with shared ground return. Use Value: Eliminates measurement drift or ADC saturation caused by sub-microsecond transients, preserving diagnostic image fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A | 600 W PPP rating (vs. 3000 W); same VWM and VC but lower IPP (101 A vs. 194.8 A) | Limited to Class 2/3 IEC61000-4-5; insufficient for Class 4 (2 Ω) or high-energy inductive switching | Select only where system-level surge stress is validated ≤600 W and PCB space constraints prohibit larger packages. |
| SMCJ9.0A | 1500 W PPP rating; identical VWM and VC, but IPP = 139 A - half the energy-handling capacity of MDA3KP9.0A | Meets IEC61000-4-5 Class 3 (12 Ω) but not Class 4 (2 Ω); requires derating above 85 °C | Use when cost sensitivity outweighs need for full 3000 W headroom and thermal margin is tightly controlled. |
Compared with SMBJ9.0A and SMCJ9.0A, the MDA3KP9.0A delivers 2× and 2.15× higher peak pulse power respectively - enabling single-device compliance with demanding Class 4 lightning protection and eliminating need for parallel TVS arrays or oversized heatsinking.
Availability
MDA3KP9.0A is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, and automotive body control modules requiring stable component supply, long-term lifecycle support, and traceable high-reliability sourcing.
Supply support for MDA3KP9.0A 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 MDA3KP series was developed specifically for high-energy transient suppression in mission-critical power systems, emphasizing MIL-PRF-19500 screening readiness, robust epoxy packaging, and guaranteed 3000 W surge capability across extended temperature ranges.
FAQ
What is the clamping voltage of the MDA3KP9.0A at its rated peak pulse current?
The MDA3KP9.0A has a maximum clamping voltage (VC) of 15.4 V at its rated peak pulse current (IPP) of 194.8 A under 10/1000 µs waveform conditions. This value is measured per Figure 2 in the official RF01243 Rev B datasheet and represents the worst-case overvoltage imposed on protected circuitry during full-rated surge events. The MDA3KP9.0A maintains this clamping performance across its full operating temperature range.
Is the MDA3KP9.0A unidirectional or bidirectional, and how is polarity marked?
The MDA3KP9.0A is a unidirectional TVS array, as indicated by the absence of "C" suffix in its part number. Polarity is marked on the package with a dot identifying Pin 1, and odd-numbered pins (1 and 3) serve as cathodes. This configuration enables line-to-ground clamping for positive transients only - a design choice optimized for DC power rail protection where reverse voltage stress is not expected. The MDA3KP9.0A data sheet explicitly confirms this construction in the "Polarity" section on Page 2.
Does the MDA3KP9.0A meet IEC61000-4-5 Class 4 requirements?
Yes, the MDA3KP9.0A is rated for IEC61000-4-5 Class 4 secondary lightning protection when tested with a 2 Ω source impedance, as stated in the Applications/Benefits section of the RF01243 Rev B datasheet. This classification requires the device to withstand 3000 W transients - precisely the PPP rating of the MDA3KP9.0A. The MDA3KP9.0A achieves this with its 15.4 V clamping voltage at 194.8 A, ensuring protected circuits remain within safe operating limits during standardized surge testing.
What is the standoff voltage (VWM) and why is it important for selecting the MDA3KP9.0A?
The MDA3KP9.0A has a rated working standoff voltage (VWM) of 9.0 V, meaning it remains non-conductive up to this DC or peak AC voltage under normal operation. This parameter is critical because VWM must be ≥ the maximum continuous operating voltage of the protected line to avoid leakage or premature conduction. For example, the MDA3KP9.0A is correctly selected for 9 V systems where peak transients exceed 9 V but must be clamped before reaching damaging levels - a balance confirmed by its 10.0–11.1 V V(BR) range.
Can the MDA3KP9.0A be used in RoHS-compliant manufacturing processes?
Yes, the MDA3KP9.0A carries the "e3" marking per its nomenclature, indicating RoHS-compliant matte-tin terminal plating. It meets J-STD-020B Level 1 moisture sensitivity and requires no dry pack prior to reflow. The device supports lead-free soldering at peak temperatures up to 260 °C for 10 seconds, as verified in the Maximum Ratings table. This makes the MDA3KP9.0A fully compatible with modern RoHS-compliant assembly lines without process modification.
MDA3KP9.0A 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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 194.8A
- 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:
- -
MDA3KP9.0A FAQ
1.How can I place an order for MDA3KP9.0A through Aetrix?
Please submit a Request for Quotation (RFQ) for MDA3KP9.0A 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 MDA3KP9.0A reliable?
The price and inventory of MDA3KP9.0A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MDA3KP9.0A is usually 5 days.
3.What payment methods are accepted for MDA3KP9.0A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MDA3KP9.0A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MDA3KP9.0A?
MDA3KP9.0A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MDA3KP9.0A 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 MDA3KP9.0A?
For technical support, including MDA3KP9.0A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MDA3KP9.0A requirements.
6.How does Aetrix verify that MDA3KP9.0A is sourced from the original manufacturer or authorized distributors?
All MDA3KP9.0A 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 MDA3KP9.0A meets industry standards.
7.What is the process for return or replacement of MDA3KP9.0A?
All MDA3KP9.0A units undergo pre-shipment inspection (PSI). If there is an issue with MDA3KP9.0A, 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 MDA3KP9.0A part is unused and in its original packaging.
Return procedure for MDA3KP9.0A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MDA3KP9.0A 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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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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