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Microchip Technology MXLDA3KP7.5A
- Part No.:
- MXLDA3KP7.5A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXLDA3KP7.5A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:9,445
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Product details
Overview
MXLDA3KP7.5A from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array with 7.5 V standoff voltage (VWM), 8.33–9.21 V breakdown voltage (V(BR)), and 12.9 V clamping voltage (VC) at 232.6 A peak pulse current (IPP). It provides secondary lightning protection per IEC61000-4-5 (42 Ω, Class 1–4), ESD/EFT suppression per IEC61000-4-2/4-4, and inductive switching transient protection in power supply input stages.
For engineers reviewing the MXLDA3KP7.5A datasheet, MXLDA3KP7.5A pinout, MXLDA3KP7.5A application, or MXLDA3KP7.5A equivalent, this page delivers verified electrical parameters, package dimensions, IEC-compliant surge performance, polarity marking convention, and high-reliability screening options aligned to MIL-PRF-19500.
Technical Context
The MXLDA3KP7.5A operates as a unidirectional avalanche diode-based TVS, designed for fast-clamping response (<100 ps rise time) during transient events. Its 7.5 V VWM ensures compatibility with 5 V and 3.3 V logic-supply rails while maintaining margin above nominal DC operating voltage.
It delivers 3000 W peak pulse power at 10/1000 μs waveform with full surge testing per production lot, and supports temperature derating per Figure 3 - retaining ≥80% of rated PPP up to +100 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - maximum continuous reverse working voltage before conduction; sets minimum system overvoltage threshold for protection activation |
| V(BR) min/max | 8.33–9.21 V @ 1 mA - guaranteed avalanche onset range; defines minimum clamping headroom vs. VWM |
| VC @ IPP | 12.9 V @ 232.6 A - maximum clamped voltage during 10/1000 μs surge; determines protected circuit's worst-case stress level |
| IPP | 232.6 A - peak impulse current supported at rated clamping voltage; correlates directly to IEC61000-4-5 Class 4 (42 Ω source) capability |
| ID @ VWM | 100 µA - maximum leakage at standoff voltage; ensures negligible standby power loss in low-power systems |
| TJ/TSTG | −55 to +150 °C - qualified operating and storage temperature range; enables deployment in industrial and automotive under-hood environments |
Pinout & Package
MXLDA3KP7.5A uses a 2-pin surface-mount DO-214AB (SMC) package with void-free UL94V-0 epoxy body, tin-lead or matte-tin plating, and polarity marked by a dot indicating Pin 1 (cathode). Weight ≈5 g; moisture sensitivity level = 1 (no dry pack required).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line (e.g., VBUS); conducts during overvoltage to shunt energy to ground |
| Pin 2 | Anode | Connected to system ground reference; completes clamping path during transient event |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables single-device protection against IEC61000-4-5 Class 4 surges (42 Ω, 4 kV) without parallel staging |
| Unidirectional construction | Prevents reverse-bias leakage in DC-coupled lines; avoids signal distortion in power rail applications |
| MIL-PRF-19500 screening option | Supports high-reliability programs requiring wafer/lot traceability, 3σ ID screening, and conformance inspection |
| 100 µA max ID @ VWM | Minimizes quiescent current draw in battery-powered or always-on systems without compromising protection margin |
Applications
| Industrial Power Input Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: 24 V DC input stage of programmable logic controllers exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary transient clamp on main power rail; activates within <100 ps to limit voltage excursion below 13 V. Use Value: Prevents latch-up or damage to downstream DC-DC converters and microcontrollers during 100 V/100 ms load dump events. | Use Scenario: 12 V supply line feeding CAN transceivers and sensor interfaces in BCM modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between fuse output and LDO input; clamps ESD (±15 kV contact) and EFT bursts. Use Value: Maintains <12.9 V clamping during 232.6 A surge, ensuring CAN PHY remains functional per ISO 11898-2 immunity requirements. |
| Telecom AC/DC Adapter Interface | Medical Diagnostic Equipment Power Entry |
Use Scenario: Secondary-side DC output (5 V/12 V) of isolated AC/DC adapters subject to conducted surges per IEC61000-4-5. IC Role / Device Role / Timing Role: Final-stage TVS before connector interface; absorbs residual transients escaping primary-side MOVs. Use Value: Delivers 3000 W pulse handling at 10/1000 μs, enabling compliance with IEC61000-4-5 Level 4 (4 kV) without additional cascading components. | Use Scenario: Mains-connected imaging equipment requiring reinforced isolation and low-leakage protection on auxiliary 5 V rails. IC Role / Device Role / Timing Role: Standby-supply TVS on isolated 5 V logic rail; blocks transients while drawing only ≤100 µA at nominal voltage. Use Value: Meets IEC60601-1 creepage/clearance and leakage current limits while providing 12.9 V clamping for FPGA and ADC power domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5A | Lower PPP (400 W), same VWM (7.5 V), higher VC (12.0 V @ 32.4 A), DO-214AC package | Not suitable for IEC61000-4-5 Class 4; limited to Class 2/3 or ESD-only roles | Select when cost-sensitive designs require basic ESD/EFT protection without lightning-level surge capability |
| SMCJ7.5A | Same PPP (3000 W), identical VWM/VC/IPP specs, DO-214AB package, but no MIL-PRF-19500 screening option | Lacks high-reliability screening; not qualified for aerospace or defense programs requiring lot traceability | Select for commercial industrial use where full surge rating is needed but upscreening is unnecessary |
Compared with SMAJ7.5A and SMCJ7.5A, the MXLDA3KP7.5A uniquely combines 3000 W surge capability, MIL-PRF-19500 screening eligibility, and 100 µA leakage - making it optimal for mission-critical power entry protection where reliability, surge margin, and low standby current are jointly required.
Availability
MXLDA3KP7.5A is available at Aetrix Electronics and suitable for industrial power input protection, automotive body control modules, telecom adapter interfaces, and medical diagnostic equipment power entry requiring stable component supply across extended product lifecycles.
Supply support for MXLDA3KP7.5A 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 and mixed-signal ICs, RF solutions, and discrete protection devices.
The MDA3KP series was developed for robust front-end transient suppression in harsh electromagnetic environments - targeting industrial automation, defense systems, and transportation electronics where failure tolerance and surge survivability are non-negotiable.
FAQ
What is the clamping voltage of the MXLDA3KP7.5A at its rated peak pulse current?
The MXLDA3KP7.5A has a maximum clamping voltage (VC) of 12.9 V at its rated peak pulse current (IPP) of 232.6 A under 10/1000 μs waveform conditions. This value is measured per standard test methods defined in the datasheet and represents the upper bound of voltage seen by protected circuitry during worst-case surge events - critical for ensuring downstream components remain within absolute maximum ratings.
Is the MXLDA3KP7.5A RoHS compliant?
Yes, the MXLDA3KP7.5A is RoHS compliant, indicated by the "e3" suffix in its full part marking per Microsemi's nomenclature guide. The device uses annealed matte-tin plating on terminals and meets all substance restrictions outlined in Directive 2011/65/EU, including lead-free solderability per J-STD-020B Level 1 moisture sensitivity classification.
Does the MXLDA3KP7.5A support bidirectional operation?
No, the MXLDA3KP7.5A is a unidirectional TVS device, as confirmed by its part number suffix "A" (not "C") and electrical characterization showing forward clamping voltage (VFS = 4.0 V) only. Bidirectional variants such as MXLDA3KP7.5CA exist separately and exhibit symmetrical clamping in both polarities - the MXLDA3KP7.5A must be oriented with cathode toward the protected line.
What is the maximum operating temperature for the MXLDA3KP7.5A?
The MXLDA3KP7.5A is rated for junction and storage temperatures from −55 °C to +150 °C. Its peak pulse power derates linearly above +25 °C, retaining ≥80% of 3000 W capability up to +100 °C per Figure 3 in the datasheet - making it suitable for under-hood automotive or enclosed industrial enclosures without forced cooling.
Can the MXLDA3KP7.5A be used for IEC61000-4-5 Class 4 lightning surge protection?
Yes, the MXLDA3KP7.5A is explicitly rated for IEC61000-4-5 Class 4 secondary lightning protection with 42 Ω source impedance, as documented in the Applications/Benefits section of the RF01243 datasheet. Its 232.6 A IPP and 12.9 V VC ensure compliance with the 4 kV test level when applied correctly in series with appropriate impedance-matching layout practices.
MXLDA3KP7.5A 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):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.9V
- Current - Peak Pulse (10/1000µs):
- 232.6A
- 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:
- -
MXLDA3KP7.5A FAQ
1.How can I place an order for MXLDA3KP7.5A through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLDA3KP7.5A 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 MXLDA3KP7.5A reliable?
The price and inventory of MXLDA3KP7.5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLDA3KP7.5A is usually 5 days.
3.What payment methods are accepted for MXLDA3KP7.5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLDA3KP7.5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLDA3KP7.5A?
MXLDA3KP7.5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLDA3KP7.5A 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 MXLDA3KP7.5A?
For technical support, including MXLDA3KP7.5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLDA3KP7.5A requirements.
6.How does Aetrix verify that MXLDA3KP7.5A is sourced from the original manufacturer or authorized distributors?
All MXLDA3KP7.5A 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 MXLDA3KP7.5A meets industry standards.
7.What is the process for return or replacement of MXLDA3KP7.5A?
All MXLDA3KP7.5A units undergo pre-shipment inspection (PSI). If there is an issue with MXLDA3KP7.5A, 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 MXLDA3KP7.5A part is unused and in its original packaging.
Return procedure for MXLDA3KP7.5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLDA3KP7.5A Tags
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