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Microchip Technology MDA3KP16A
- Part No.:
- MDA3KP16A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MDA3KP16A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,476
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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 secondary lightning and ESD protection in industrial power interfaces. It features a 16 V standoff voltage (VWM), 17.8–19.7 V breakdown range (V(BR)), 26.0 V maximum clamping voltage at 115.4 A peak pulse current, and operates from –55 °C to +150 °C. Used in AC/DC front-end surge protection circuits.
For engineers reviewing the MDA3KP16A datasheet, MDA3KP16A pinout, MDA3KP16A application, or MDA3KP16A equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD, IEC61000-4-5 Class 1–4 compliance with 2–42 Ω source impedance, thermal derating above 25 °C, and RoHS-compliant matte-tin terminations per MIL-STD-750.
Technical Context
The MDA3KP16A implements a silicon avalanche diode structure optimized for sub-100 ps response time and low dynamic impedance under 10/1000 µs surge transients. Its unidirectional polarity enables DC-biased rail protection without reverse leakage concerns above VWM.
It delivers 3000 W peak pulse power at 25 °C with full derating per Figure 3, supports 200 A forward surge current (8.3 ms half-sine), and maintains <2 µA standby current at 16 V - critical for low-power monitoring circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous operating voltage before conduction begins; sets minimum system rail rating for safe placement. |
| V(BR) min/max | 17.8–19.7 V @ 1 mA - defines guaranteed avalanche onset window; ensures predictable turn-on across temperature and lot variation. |
| VC @ IPP | 26.0 V @ 115.4 A - clamping voltage during worst-case 10/1000 µs surge; determines maximum stress on downstream components. |
| IPP | 115.4 A - peak impulse current capability at VC; directly correlates to IEC61000-4-5 Class 3/4 compliance with 12 Ω and 42 Ω source impedances. |
| TJ/TSTG | –55 to +150 °C - extended junction temperature range enables use in enclosed industrial enclosures without forced cooling. |
| ID @ VWM | <2 µA - ultra-low leakage preserves battery life and avoids false triggering in high-impedance sensing nodes. |
Pinout & Package
MDA3KP16A uses a 3-pin SMC (DO-214AB) surface-mount package with void-free UL94V-0 epoxy body, matte-tin terminations, and polarity marked by a dot indicating Pin 1 as cathode. Pin 1 = cathode, Pin 2 = anode, Pin 3 = cathode (dual-channel configuration).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (Channel A) | Connected to protected line; must be routed to ground or lower-potential reference to enable clamping. |
| Pin 2 | Anode (Common) | Shared anode node; ties both TVS channels to common return path - requires low-inductance grounding. |
| Pin 3 | Cathode (Channel B) | Second protected line input; enables dual-rail or differential-line protection with single device. |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power @ 10/1000 µs | Enables single-device compliance with IEC61000-4-5 Class 4 (42 Ω source) up to 16 V systems without parallel devices. |
| Sub-100 ps response time | Clamps ESD events (IEC61000-4-2) before sensitive logic or analog circuitry sustains damage. |
| MIL-PRF-19500 screening option | Supports high-reliability aerospace and defense programs requiring wafer lot traceability and 3σ ID screening. |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and bake-out prior to reflow, reducing manufacturing cost and handling risk. |
Applications
| Industrial AC/DC Power Input | Programmable Logic Controller (PLC) I/O Modules |
|---|---|
Use Scenario: 24 V DC power supply input subjected to load dump and inductive switching transients in factory automation cabinets. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converter input to limit transient energy entering regulation stage. Use Value: 26.0 V clamping ensures downstream 36 V-rated input capacitors and MOSFETs remain within safe operating area during 1 kV/0.5 Ω surge events. | Use Scenario: 24 V digital input channel exposed to field wiring induced surges and contact bounce in harsh plant environments. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS used in series with optocoupler input to absorb positive-going transients while blocking reverse leakage. Use Value: <2 µA standby current prevents false triggering of high-impedance input comparators during normal operation. |
| Telecom Remote Radio Unit (RRU) Power Feeds | Renewable Energy Inverter DC Link Monitoring |
Use Scenario: 48 V PoE-like power feed to outdoor base station radios experiencing lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: First-stage protection on DC input rail, coordinated with downstream GDT and MOV for staged energy absorption. Use Value: 115.4 A IPP capacity handles 10/1000 µs surges up to 4.2 kV (42 Ω source), meeting IEC61000-4-5 Class 4 requirements. | Use Scenario: Voltage sense line monitoring 600 V DC link in solar string inverters, vulnerable to fast transients from IGBT switching. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at ADC input to suppress nanosecond-scale ringing without signal distortion. Use Value: Sub-100 ps response time clamps transients before 1 MSPS sampling cycle completes, preserving measurement integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A | 600 W rating, 27.7 V clamping @ 21.2 A, DO-214AA package | Limited to IEC61000-4-5 Class 2 (12 Ω source); insufficient for Class 4 42 Ω testing. | Select when system surge energy is ≤600 W and space constraints favor smaller SMB footprint. |
| SMCJ16A | 1500 W rating, 26.0 V clamping @ 57.7 A, same SMC package | Half the peak power handling; requires parallel devices for Class 4 compliance. | Choose if cost sensitivity outweighs board space, and surge duty cycle allows thermal recovery between events. |
Compared with MDA3KP16A, SMBJ16A offers smaller size but only 20% of the surge energy handling, while SMCJ16A shares the same package and clamping voltage but delivers just half the peak power - making MDA3KP16A the sole single-device solution for full Class 4 42 Ω compliance at 16 V.
Availability
MDA3KP16A is available at Aetrix Electronics and suitable for industrial AC/DC power inputs, PLC I/O modules, and telecom remote radio unit (RRU) power feeds requiring stable component supply across extended temperature and high-surge environments.
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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial applications.
The MDA3KP series targets mission-critical surge protection where failure is not an option - delivering MIL-PRF-19500 screening, full temperature-range validation, and guaranteed 3000 W pulse performance.
FAQ
What is the clamping voltage of MDA3KP16A at its rated peak pulse current?
The MDA3KP16A has a maximum clamping voltage (VC) of 26.0 V at its rated peak pulse current (IPP) of 115.4 A under 10/1000 µs waveform conditions. This value is measured per Figure 2 in the RF01243 datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The MDA3KP16A maintains this clamping performance across its full operating temperature range when derated per Figure 3.
Is MDA3KP16A RoHS compliant?
Yes, MDA3KP16A is RoHS compliant, indicated by the "e3" suffix in its full marking per page 2 of RF01243 Rev B. It features annealed matte-tin plating on terminals and meets JEDEC J-STD-020B Level 1 moisture sensitivity - eliminating dry-pack requirements and enabling standard reflow profiles without baking.
Can MDA3KP16A be used for bidirectional transient protection?
No, MDA3KP16A is unidirectional only, as confirmed by its part number suffix "A" (blank = unidirectional) and polarity definition stating "odd number pins are cathodes". For bidirectional protection at 16 V standoff, the correct variant is MDA3KP16CA - which uses symmetrical avalanche structure and different breakdown characteristics.
What is the standoff voltage rating of MDA3KP16A and how does it relate to system design?
The MDA3KP16A has a rated working standoff voltage (VWM) of 16 V, meaning it remains non-conductive below this DC or peak AC voltage. System designers must ensure the maximum continuous operating voltage on the protected line does not exceed 16 V - for example, selecting it for a nominal 12 V DC rail with ≤16 V ripple or transient overshoot. Exceeding VWM risks premature conduction and accelerated wear.
Does MDA3KP16A require special PCB layout considerations?
Yes, MDA3KP16A demands low-inductance layout: its Pin 2 (common anode) must connect to a solid ground plane via shortest possible trace, and both cathode pins (1 and 3) should route directly to protected lines with minimal loop area. Thermal relief pads are discouraged; full copper pours on both sides improve heat dissipation during repetitive surges. The MDA3KP16A pad layout is specified on page 7 of RF01243.
MDA3KP16A 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:
- -
MDA3KP16A FAQ
1.How can I place an order for MDA3KP16A through Aetrix?
Please submit a Request for Quotation (RFQ) for MDA3KP16A 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 MDA3KP16A reliable?
The price and inventory of MDA3KP16A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MDA3KP16A is usually 5 days.
3.What payment methods are accepted for MDA3KP16A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MDA3KP16A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MDA3KP16A?
MDA3KP16A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MDA3KP16A 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 MDA3KP16A?
For technical support, including MDA3KP16A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MDA3KP16A requirements.
6.How does Aetrix verify that MDA3KP16A is sourced from the original manufacturer or authorized distributors?
All MDA3KP16A 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 MDA3KP16A meets industry standards.
7.What is the process for return or replacement of MDA3KP16A?
All MDA3KP16A units undergo pre-shipment inspection (PSI). If there is an issue with MDA3KP16A, 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 MDA3KP16A part is unused and in its original packaging.
Return procedure for MDA3KP16A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MDA3KP16A Tags
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