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Microchip Technology MXLDA3KP17A
- Part No.:
- MXLDA3KP17A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXLDA3KP17A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:9,021
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Product details
Overview
MXLDA3KP17A from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array with 17 V standoff voltage (VWM), 18.9–20.9 V breakdown voltage (V(BR)), and 27.6 V clamping voltage (VC) at 106.6 A peak pulse current. It delivers lightning surge protection per IEC61000-4-5 (Class 1–4, 42 Ω source) and ESD/EFT suppression per IEC61000-4-2/4-4 in telecom power interfaces.
For engineers reviewing the MXLDA3KP17A datasheet, MXLDA3KP17A pinout, MXLDA3KP17A application, or MXLDA3KP17A equivalent, this device is selected for high-reliability DC power rail protection where fast response (<100 ps), low clamping ratio (1.62×VWM), and MIL-PRF-19500 upscreening capability are required.
Technical Context
The MXLDA3KP17A operates as a unidirectional avalanche diode-based TVS, activated when reverse voltage exceeds its 18.9 V minimum breakdown threshold. Its clamping action limits transients to ≤27.6 V at 106.6 A under 10/1000 μs waveform, delivering 3000 W peak pulse power handling with <100 ps response time.
Designed for surface-mount vertical mounting, it features RoHS-compliant matte-tin plating, UL94V-0 epoxy body, and polarity defined by dot-marked Pin 1 (cathode). Standby leakage is ≤2 μA at 17 V, supporting low-power system monitoring without loading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - Maximum continuous DC operating voltage before conduction begins |
| V(BR) min/max | 18.9–20.9 V - Confirmed avalanche onset range at 1 mA, ensuring predictable turn-on margin |
| VC @ IPP | 27.6 V - Clamped voltage during 106.6 A 10/1000 μs surge, limiting downstream stress |
| IPP | 106.6 A - Peak surge current supported at rated clamping voltage, defining surge capacity |
| PPP | 3000 W - Peak pulse power rating at 10/1000 μs, enabling Class 4 secondary lightning protection |
| ID @ VWM | ≤2 μA - Ultra-low leakage at working voltage, preserving battery life and signal integrity |
| TJ/TSTG | −55 to +150 °C - Extended thermal range supports industrial and aerospace environments |
Pinout & Package
MXLDA3KP17A uses a 2-pin DO-218AB (SMB) package with vertical orientation, void-free UL94V-0 epoxy body, and cathode identified by dot marking on top. Pin 1 is cathode; Pin 2 is anode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line (e.g., +12 V rail); conducts when transient exceeds V(BR) |
| Pin 2 | Anode | Connected to ground reference; completes current path during clamping event |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables robust Class 4 secondary lightning protection per IEC61000-4-5 with 42 Ω source impedance |
| Clamping ratio of 1.62 | VC/VWM = 27.6/17 ensures minimal overvoltage stress on downstream ICs during surge events |
| Response time <100 ps | Fast enough to suppress ESD (IEC61000-4-2) and EFT (IEC61000-4-4) before damage occurs |
| MIL-PRF-19500 upscreening option | Supports high-reliability programs requiring wafer lot traceability and 3σ standby current screening |
| Moisture sensitivity Level 1 | No dry pack or bake-out required prior to reflow, simplifying SMT manufacturing |
Applications
| Telecom Power Input Protection | Industrial PLC I/O Module Protection |
|---|---|
Use Scenario: Protecting 24 V DC input rails in base station power supplies against induced surges and lightning coupling. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient energy before it reaches DC-DC converters and PMICs. Use Value: Limits voltage to 27.6 V during 106.6 A surges, preventing latch-up or burnout in downstream regulators. | Use Scenario: Safeguarding analog input channels in programmable logic controllers exposed to field wiring transients. IC Role / Device Role / Timing Role: Front-end surge limiter on sensor signal conditioning paths with 17 V nominal supply. Use Value: Sub-100 ps response prevents ESD-induced data corruption in 16-bit ADC front-ends. |
| Automotive Body Control Module (BCM) | Medical Diagnostic Equipment Power Rails |
Use Scenario: Protecting 12 V battery-fed microcontroller power domains from load dump and alternator spikes. IC Role / Device Role / Timing Role: Primary clamp on main VDD rail upstream of LDOs and reset supervisors. Use Value: Withstands 3000 W pulses while maintaining ≤2 μA leakage, avoiding battery drain in sleep mode. | Use Scenario: Securing isolated 15–18 V auxiliary rails in MRI and ultrasound imaging subsystems. IC Role / Device Role / Timing Role: High-reliability transient suppressor certified for medical-grade surge immunity (IEC60601-1-2 Ed.3.1). Use Value: MIL-PRF-19500 screening option enables full traceability and lot-level reliability validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ17A | 600 W PPP rating, 27.6 V VC @ 24.7 A IPP - lower surge capacity | Not suitable for Class 4 IEC61000-4-5; limited to Class 2/3 lightning protection | Select SMAJ17A only for cost-sensitive, low-energy surge environments with <1 kA threat level. |
| SMCJ17A | 1500 W PPP rating, 27.6 V VC @ 54.3 A IPP - half the energy handling of MXLDA3KP17A | Meets Class 3 lightning but fails Class 4 compliance at 42 Ω source impedance | Choose SMCJ17A where board space allows larger SMC package and 1500 W suffices for end-equipment certification. |
Compared with SMAJ17A and SMCJ17A, the MXLDA3KP17A provides double the peak pulse power of SMCJ17A and five times that of SMAJ17A-enabling single-device Class 4 lightning compliance without parallel stacking or derating.
Availability
MXLDA3KP17A is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, automotive BCM, and medical diagnostic equipment requiring stable component supply across extended temperature and surge immunity specifications.
Supply support for MXLDA3KP17A 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 for mission-critical surge protection in harsh environments, emphasizing MIL-PRF-19500 screening readiness, wide temperature operation, and repeatable clamping performance under repetitive surge stress.
FAQ
What is the clamping voltage of MXLDA3KP17A at its rated peak pulse current?
The MXLDA3KP17A has a maximum clamping voltage (VC) of 27.6 V at its rated peak pulse current (IPP) of 106.6 A under 10/1000 μs waveform conditions. This value is measured per standard TVS test methodology and defines the upper voltage limit imposed on protected circuits during worst-case surge events. The MXLDA3KP17A maintains this clamping performance across its full operating temperature range of −55 to +150 °C.
Is MXLDA3KP17A RoHS compliant and what does the 'e3' suffix indicate?
Yes, MXLDA3KP17A is RoHS compliant, as confirmed by the 'e3' designation in its full part number per Microsemi's nomenclature. The 'e3' suffix specifies annealed matte-tin terminal plating meeting JEDEC J-STD-020B moisture sensitivity Level 1 requirements-eliminating the need for dry packing or baking prior to reflow soldering. This compliance applies to the entire production lot of MXLDA3KP17A.
Does MXLDA3KP17A support MIL-PRF-19500 upscreening and what does that include?
Yes, MXLDA3KP17A supports optional MIL-PRF-19500 upscreening, including wafer fabrication and assembly lot traceability, 3σ statistical screening on standby current (ID), and conformance inspections per military reliability standards. This upscreening is not standard but available upon request for high-reliability programs. The base MXLDA3KP17A meets commercial-grade specs; upscreened units retain identical electrical parameters and packaging.
What is the polarity configuration of MXLDA3KP17A and how is it marked on the package?
MXLDA3KP17A is a unidirectional TVS with cathode on Pin 1 and anode on Pin 2. Polarity is marked by a dot on the top surface of the DO-218AB package adjacent to Pin 1. This marking aligns with Microsemi's standard layout and is verified in the RF01243 Rev B package drawing. The device must be oriented with the dot toward the protected line (e.g., +17 V rail) to ensure proper clamping function.
How does MXLDA3KP17A compare to bidirectional variants like MXLDA3KP17CA in surge protection capability?
MXLDA3KP17A is unidirectional and optimized for DC power rail protection, offering 27.6 V clamping in reverse bias only. In contrast, MXLDA3KP17CA is bidirectional with symmetric clamping in both polarities (±27.6 V), making it suitable for AC signal lines or differential buses. Neither variant substitutes for the other without circuit redesign-MXLDA3KP17A cannot protect AC signals, and MXLDA3KP17CA exhibits higher leakage in DC applications due to dual-junction structure.
MXLDA3KP17A 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):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 27.6V
- Current - Peak Pulse (10/1000µs):
- 106.6A
- 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:
- -
MXLDA3KP17A FAQ
1.How can I place an order for MXLDA3KP17A through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLDA3KP17A 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 MXLDA3KP17A reliable?
The price and inventory of MXLDA3KP17A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLDA3KP17A is usually 5 days.
3.What payment methods are accepted for MXLDA3KP17A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLDA3KP17A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLDA3KP17A?
MXLDA3KP17A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLDA3KP17A 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 MXLDA3KP17A?
For technical support, including MXLDA3KP17A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLDA3KP17A requirements.
6.How does Aetrix verify that MXLDA3KP17A is sourced from the original manufacturer or authorized distributors?
All MXLDA3KP17A 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 MXLDA3KP17A meets industry standards.
7.What is the process for return or replacement of MXLDA3KP17A?
All MXLDA3KP17A units undergo pre-shipment inspection (PSI). If there is an issue with MXLDA3KP17A, 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 MXLDA3KP17A part is unused and in its original packaging.
Return procedure for MXLDA3KP17A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLDA3KP17A Tags
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