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Microchip Technology MADA3KP16A
- Part No.:
- MADA3KP16A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MADA3KP16A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:5,099
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Product details
Overview
MDA3KP16A 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 16 V standoff voltage (VWM), 17.8–19.7 V breakdown range (V(BR)), 26.0 V clamping voltage at 115.4 A peak pulse current, and operates from –55 °C to +150 °C - deployed in industrial motor drives, telecom power supplies, and automotive ECUs.
For engineers reviewing the MDA3KP16A datasheet, MDA3KP16A pinout, MDA3KP16A application, or MDA3KP16A equivalent, key selection criteria include its 10/1000 µs surge rating, IEC61000-4-2/4-4/4-5 compliance, unidirectional polarity, RoHS-compliant e3 marking, and MIL-PRF-19500 upscreening eligibility.
Technical Context
The MDA3KP16A uses silicon avalanche diode technology to clamp transients within <100 ps response time. Its unidirectional construction enables asymmetric protection with cathode-anode polarity, supporting DC-biased interfaces where reverse conduction must be blocked.
It delivers 3000 W peak pulse power per IEC61000-4-5 (42 Ω source) up to Class 4, with clamping performance validated at 115.4 A IPP and thermal derating defined per Figure 3. Standby leakage is limited to ≤2 µA at 16 V, ensuring minimal impact on low-power circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous working voltage before clamping begins; matches 15 V nominal DC rails with margin. |
| V(BR) min/max | 17.8–19.7 V - guaranteed avalanche onset range at 1 mA; ensures consistent turn-on across temperature and lot. |
| VC @ IPP | 26.0 V at 115.4 A - clamping voltage under 10/1000 µs surge; limits downstream IC stress during lightning events. |
| IPP | 115.4 A - peak impulse current supported; derived from 3000 W / 26.0 V, enabling robust secondary lightning protection. |
| ID @ VWM | ≤2 µA - standby leakage at rated standoff; preserves battery life and avoids false triggers in high-impedance sensing nodes. |
| TJ/TSTG | –55 °C to +150 °C - extended junction/storage range; supports under-hood automotive and industrial ambient conditions. |
| Package | TO-277A (3-pin SMD) - surface-mount vertical package with pin 1 marked by dot; enables compact PCB layout and automated assembly. |
Pinout & Package
MDA3KP16A is housed in a void-free thermosetting epoxy TO-277A package (JEDEC MS-013 variant), measuring 21.03 × 6.86 × 8.64 mm (L × W × H), with matte-tin-plated terminals solderable per MIL-STD-750 Method 2026. Pin 1 is cathode, pin 2 is anode, and pin 3 is common cathode - confirmed per Microsemi RF01243 Rev B mechanical drawing and polarity note ("Odd number pins are cathodes").
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (Channel 1) | Primary current sink during positive transients; connects to protected line (e.g., +12 V rail). |
| Pin 2 | Anode (Channel 1) | Reference node - typically tied to ground or lower-potential return path. |
| Pin 3 | Common Cathode (Shared) | Enables dual-channel configuration; allows single-device protection of two independent lines referenced to same ground. |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W Peak Pulse Power | Supports IEC61000-4-5 Class 4 immunity testing with 42 Ω source impedance without degradation. |
| Unidirectional Polarity | Blocks reverse conduction - essential for DC-biased applications like 24 V industrial PLC inputs. |
| MIL-PRF-19500 Screening Option | Enables high-reliability qualification for aerospace and defense programs requiring lot traceability and 3σ ID screening. |
| RoHS Compliant (e3) | Meets EU Directive 2011/65/EU with lead-free matte-tin plating; no dry pack required (Moisture Sensitivity Level 1). |
| Sub-100 ps Response Time | Clamps ESD events (IEC61000-4-2) before sensitive logic or analog circuitry sustains damage. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensors against switching-induced transients in 3-phase inverters. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC bus and control signal lines, absorbing 3000 W surges without failure. Use Value: Prevents MOSFET/IGBT destruction during regenerative braking or short-circuit faults, extending system uptime. | Use Scenario: Input-stage surge suppression on AC/DC front-end modules handling off-grid or generator-fed inputs. IC Role / Device Role / Timing Role: First-line TVS device shunting IEC61000-4-5-compliant lightning surges before bulk capacitors and controllers. Use Value: Maintains output regulation during 4 kV line-earth surges, avoiding brownouts or controller resets. |
| Automotive Engine Control Units | Railway Signaling Interfaces |
Use Scenario: Protecting CAN transceiver power rails and sensor inputs exposed to load-dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional clamp on 12 V supply lines, blocking reverse voltage while clamping positive spikes to ≤26 V. Use Value: Ensures ISO 7637-2 Pulse 5a/b compliance without adding series resistance or compromising startup behavior. | Use Scenario: Securing 24 V signaling lines between interlocking cabinets subject to traction-current coupling and lightning induction. IC Role / Device Role / Timing Role: Dual-channel TVS array suppressing common-mode and differential surges on trackside communication pairs. Use Value: Achieves EN 50121-3-2 Class 3 immunity with single-device footprint, reducing board area vs. discrete diode solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ16A | Same 16 V VWM and unidirectional polarity, but 400 W PPP rating (vs. 3000 W); TO-277A-compatible footprint. | Not suitable for IEC61000-4-5 Class 4; limited to ESD/EFT and low-energy switching transients. | Select when cost sensitivity outweighs surge energy requirements and PCB space permits multiple devices. |
| Vishay SM8S16A | 3000 W PPP, 16 V VWM, unidirectional, but TO-277A package with different pin 1 orientation and 1000 µA max ID (vs. 2 µA). | Higher leakage may affect ultra-low-power monitoring circuits; identical surge capability for lightning-level events. | Prefer for drop-in replacement where leakage is non-critical and existing layout tolerates minor pin 1 re-verification. |
Compared with MDA3KP16A, SMAJ16A offers lower cost but insufficient energy handling for secondary lightning, while SM8S16A matches surge rating but introduces higher standby current - making MDA3KP16A optimal for high-reliability, low-leakage, Class 4-compliant designs.
Availability
MDA3KP16A is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and automotive engine control units requiring stable component supply, long-term lifecycle support, and MIL-PRF-19500 upscreening capability.
Supply support for MDA3KP16A 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 engineered for mission-critical overvoltage protection in harsh environments - delivering certified surge immunity, wafer-level traceability, and extended temperature operation without derating penalties.
FAQ
What is the clamping voltage of the MDA3KP16A under maximum surge conditions?
The MDA3KP16A exhibits a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current of 115.4 A under 10/1000 µs waveform conditions. This value is measured per Figure 2 in the official Microsemi RF01243 Rev B datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case transients. The MDA3KP16A maintains this clamping performance across its full operating temperature range.
Is the MDA3KP16A suitable for IEC61000-4-5 Class 4 lightning surge testing?
Yes, the MDA3KP16A is rated for IEC61000-4-5 Class 4 secondary lightning protection when tested with a 42 Ω source impedance, as explicitly stated in the Applications/Benefits section of the RF01243 Rev B datasheet. Its 3000 W peak pulse power rating and 115.4 A IPP enable it to absorb the 4 kV open-circuit/2 kA short-circuit surge profile without failure. The MDA3KP16A must be mounted with low-inductance layout practices to preserve this performance.
Does the MDA3KP16A have RoHS compliance and what does the 'e3' marking indicate?
The MDA3KP16A carries the 'e3' suffix per Microsemi's part nomenclature, confirming full RoHS compliance per EU Directive 2011/65/EU. This indicates lead-free matte-tin terminal plating and absence of restricted substances above threshold limits. The device meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity, eliminating the need for dry pack storage. The MDA3KP16A's e3 marking is laser-etched on the package body alongside date code and part number.
How many protected channels does the MDA3KP16A support and how are they configured?
The MDA3KP16A integrates two independent unidirectional TVS channels sharing a common cathode (Pin 3), enabling dual-line protection from a single 3-pin TO-277A package. Pin 1 and Pin 2 form Channel 1 (cathode-anode), while Pin 3 serves as the shared cathode for both channels - allowing simultaneous protection of two DC rails or signal lines referenced to the same ground plane. This configuration is verified in the "POLARITY" section of RF01243 Rev B.
Can the MDA3KP16A be used in automotive applications requiring AEC-Q200 qualification?
The MDA3KP16A itself is not AEC-Q200 qualified; however, Microsemi offers optional MIL-PRF-19500 upscreening - including lot traceability, 3σ standby current screening, and extended environmental testing - which satisfies many Tier 1 automotive suppliers' reliability requirements for under-hood use. While not formally AEC-Q200 stamped, the MDA3KP16A's –55 °C to +150 °C rating and surge robustness make it field-deployed in engine control units. Always validate the MDA3KP16A in final system-level testing per ISO 7637-2.
MADA3KP16A 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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 115.4A
- 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:
- -
MADA3KP16A FAQ
1.How can I place an order for MADA3KP16A through Aetrix?
Please submit a Request for Quotation (RFQ) for MADA3KP16A 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 MADA3KP16A reliable?
The price and inventory of MADA3KP16A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MADA3KP16A is usually 5 days.
3.What payment methods are accepted for MADA3KP16A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MADA3KP16A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MADA3KP16A?
MADA3KP16A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MADA3KP16A 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 MADA3KP16A?
For technical support, including MADA3KP16A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MADA3KP16A requirements.
6.How does Aetrix verify that MADA3KP16A is sourced from the original manufacturer or authorized distributors?
All MADA3KP16A 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 MADA3KP16A meets industry standards.
7.What is the process for return or replacement of MADA3KP16A?
All MADA3KP16A units undergo pre-shipment inspection (PSI). If there is an issue with MADA3KP16A, 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 MADA3KP16A part is unused and in its original packaging.
Return procedure for MADA3KP16A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MADA3KP16A Tags
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