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Microchip Technology MXLDA3KP30A
- Part No.:
- MXLDA3KP30A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXLDA3KP30A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:7,210
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Product details
Overview
MXLDA3KP30A from Microsemi (now Microchip) is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array designed for high-reliability overvoltage protection in power and signal lines. It features a 30 V reverse standoff voltage (VWM), 33.3–36.8 V breakdown voltage (V(BR)), 48.4 V maximum clamping voltage at 62 A peak pulse current, and operates across –55 °C to +150 °C junction temperature. It protects industrial power supplies against IEC61000-4-5 secondary lightning surges.
For engineers reviewing the MXLDA3KP30A datasheet, MXLDA3KP30A pinout, MXLDA3KP30A application, or MXLDA3KP30A equivalent, key selection criteria include clamping performance at 62 A IPP, 30 V VWM compatibility with 24 V DC systems, RoHS-compliant e3 marking, and MIL-PRF-19500 upscreening eligibility for aerospace-grade reliability assurance.
Technical Context
The MXLDA3KP30A is a single-channel, unidirectional TVS diode optimized for fast transient suppression in DC power rails and low-frequency signal paths. Its <100 ps response time enables effective ESD (IEC61000-4-2) and EFT (IEC61000-4-4) protection, while its 10/1000 µs waveform-rated 3000 W peak pulse power supports robust IEC61000-4-5 Class 1–4 secondary lightning immunity with 42 Ω source impedance.
Constructed in a void-free thermosetting epoxy package with tin-lead or matte-tin plating, the device delivers traceable wafer/assembly lot control and 3σ screening on standby current (ID ≤ 2 µA at 30 V). Polarity is defined by dot-marked Pin 1 as cathode, consistent with standard unidirectional TVS layout conventions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous DC or peak AC voltage the device blocks without conduction; matches 24 V nominal systems with 25% margin. |
| V(BR) min/max | 33.3–36.8 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on before downstream IC damage. |
| VC @ IPP | 48.4 V at 62 A - Clamping voltage during full 10/1000 µs surge; limits stress on protected 3.3 V/5 V/12 V logic or power stages. |
| IPP | 62 A - Peak impulse current supported at rated clamping; corresponds to 3000 W surge power under standard waveform. |
| ID @ VWM | ≤2 µA - Ultra-low leakage at operating voltage; avoids parasitic loading in high-impedance sensor or reference circuits. |
| TJ/TSTG | –55 to +150 °C - Wide thermal envelope enabling use in under-hood automotive, industrial motor drives, and outdoor telecom equipment. |
Pinout & Package
MXLDA3KP30A uses a 2-pin DO-214AB (SMC) surface-mount package with void-free UL94V-0 epoxy body, matte-tin or tin-lead terminations, and polarity indicated by a dot marking Pin 1 (cathode). Approximate weight is 5 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line (e.g., VIN); conducts surge current to ground when voltage exceeds V(BR). |
| Pin 2 | Anode | Connected to system ground; completes low-impedance path for transient energy dissipation during clamping event. |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables single-device protection against severe 10/1000 µs lightning surges per IEC61000-4-5 without parallel staging. |
| RoHS-compliant e3 marking | Confirms lead-free matte-tin plating and compliance with Directive 2011/65/EU for global environmental regulatory acceptance. |
| MIL-PRF-19500 upscreening option | Supports high-reliability qualification including lot traceability, surge testing, and 3σ ID screening for defense/aerospace programs. |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement per J-STD-020B, simplifying SMT handling and reducing assembly cost and risk. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of 24 V DC input stage in variable-frequency drives exposed to inductive switching transients and conducted surges from adjacent contactors. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp positive-going transients before they reach DC-DC converters or gate drivers. Use Value: Limits voltage excursion to ≤48.4 V during 62 A surges, preventing latch-up or permanent damage to 30 V-rated MOSFETs and controllers. | Use Scenario: Input-stage surge suppression in -48 V telecom rectifier modules subject to secondary lightning per IEC61000-4-5 with 42 Ω source impedance. IC Role / Device Role / Timing Role: Standoff-rated TVS installed at AC/DC front-end to absorb energy from coupled surges without affecting steady-state regulation. Use Value: Maintains system uptime by surviving repeated 3000 W transients while exhibiting <2 µA leakage at rated -48 V reverse bias. |
| Railway Signaling Interfaces | Outdoor IoT Gateways |
Use Scenario: Protection of RS-485 communication lines in track-side signaling units subjected to EFT bursts and induced RF coupling from traction currents. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS placed on data line pair to shunt fast transients while preserving signal integrity up to 1 Mbps. Use Value: Sub-100 ps response ensures clamping activation prior to EFT edge propagation, meeting EN 61000-4-4 Level 4 immunity requirements. | Use Scenario: DC input protection for solar-powered wireless gateways deployed in lightning-prone rural areas, requiring long-term reliability without maintenance. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12–24 V battery/solar input, coordinated with upstream fusing to clear sustained faults. Use Value: 150 °C max junction temperature rating allows operation in sealed enclosures with passive cooling, eliminating need for derating below 75% PPP. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A | Lower PPP (400 W), same VWM (30 V), DO-214AC (SMA) package, 5.8 mm × 4.6 mm footprint vs. MDA's 8.6 mm × 7.1 mm. | Not suitable for IEC61000-4-5 Class 3/4; limited to ESD/EFT and low-energy switching transients. | Select SMAJ30A only when space-constrained layouts preclude SMC and surge energy remains below 400 W. |
| 1.5KE30A | Higher IPP (100 A), same VWM (30 V), axial-leaded DO-15 package; no RoHS e3 marking or MIL screening option. | Requires through-hole assembly; incompatible with automated SMT lines and high-vibration environments due to mechanical mounting. | Choose 1.5KE30A only for legacy through-hole designs where rework to SMD is impractical and RoHS/MIL compliance is not required. |
Compared with SMAJ30A and 1.5KE30A, MXLDA3KP30A uniquely combines 3000 W surge capability, SMD DO-214AB packaging, RoHS e3 compliance, and optional MIL-PRF-19500 screening-making it the only choice for new industrial, telecom, and transportation designs demanding high-energy, high-reliability, and automated assembly readiness.
Availability
MXLDA3KP30A is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, railway signaling interfaces, and outdoor IoT gateways requiring stable component supply and long-term lifecycle support.
Supply support for MXLDA3KP30A 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 (acquired by Microchip Technology in 2018) 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 to deliver military-grade transient suppression in commercial SMD packages, bridging the gap between standard TVS diodes and MIL-spec discrete protectors for harsh-environment electronics.
FAQ
What is the clamping voltage of MXLDA3KP30A at its rated peak pulse current?
The MXLDA3KP30A has a maximum clamping voltage (VC) of 48.4 V at its rated peak pulse current (IPP) of 62 A under 10/1000 µs waveform conditions. This value is measured per Figure 2 in the official RF01243 datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The MXLDA3KP30A maintains this clamping performance across its full operating temperature range.
Is MXLDA3KP30A RoHS compliant and what does the 'e3' marking indicate?
Yes, MXLDA3KP30A is RoHS compliant, as confirmed by the 'e3' suffix in its marking per Microsemi's part nomenclature guide. The 'e3' designation specifies matte-tin plating per JEDEC Standard J-STD-020, ensuring lead-free termination and full compliance with Directive 2011/65/EU. This makes MXLDA3KP30A suitable for export to EU, China, and other regulated markets without restriction.
Can MXLDA3KP30A be used for bidirectional transient protection?
No, MXLDA3KP30A is a unidirectional TVS device, as indicated by the absence of 'C' in its part number. Bidirectional variants (e.g., MXLDA3KP30CA) are available separately and feature symmetrical clamping for AC-coupled or dual-polarity signal lines. Using MXLDA3KP30A in bidirectional applications risks failure during negative transients, since it conducts only in reverse bias above V(BR).
What is the maximum standoff voltage and why is it critical for MXLDA3KP30A selection?
The maximum reverse standoff voltage (VWM) of MXLDA3KP30A is 30 V - the highest continuous DC or peak AC voltage it can block without significant leakage. This parameter is critical because VWM must exceed the normal operating voltage of the protected line (e.g., 24 V DC systems) by ≥10–20% to avoid false triggering while maintaining sufficient margin before breakdown. Selecting a lower-VWM device risks thermal runaway; higher-VWM reduces clamping effectiveness.
Does MXLDA3KP30A require dry-pack moisture protection before SMT assembly?
No, MXLDA3KP30A has a moisture sensitivity level (MSL) of 1 per IPC/JEDEC J-STD-020B, meaning it may be stored indefinitely at ambient conditions without baking or dry-pack requirements. This eliminates handling complexity and cost associated with MSL 2–3 devices, supporting uninterrupted SMT line operation and reducing risk of popcorning during reflow.
MXLDA3KP30A 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):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 62A
- 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:
- -
MXLDA3KP30A FAQ
1.How can I place an order for MXLDA3KP30A through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLDA3KP30A 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 MXLDA3KP30A reliable?
The price and inventory of MXLDA3KP30A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLDA3KP30A is usually 5 days.
3.What payment methods are accepted for MXLDA3KP30A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLDA3KP30A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLDA3KP30A?
MXLDA3KP30A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLDA3KP30A 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 MXLDA3KP30A?
For technical support, including MXLDA3KP30A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLDA3KP30A requirements.
6.How does Aetrix verify that MXLDA3KP30A is sourced from the original manufacturer or authorized distributors?
All MXLDA3KP30A 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 MXLDA3KP30A meets industry standards.
7.What is the process for return or replacement of MXLDA3KP30A?
All MXLDA3KP30A units undergo pre-shipment inspection (PSI). If there is an issue with MXLDA3KP30A, 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 MXLDA3KP30A part is unused and in its original packaging.
Return procedure for MXLDA3KP30A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLDA3KP30A Tags
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