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Microchip Technology MXLDA3KP33AE3
- Part No.:
- MXLDA3KP33AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXLDA3KP33AE3.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,877
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Product details
Overview
MXLDA3KP33AE3 from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array with 33 V standoff voltage (VWM), 36.7–40.6 V breakdown voltage (V(BR)), and 53.3 V clamping voltage (VC) at 56.2 A peak pulse current. 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 industrial power supplies.
For engineers reviewing the MXLDA3KP33AE3 datasheet, MXLDA3KP33AE3 pinout, MXLDA3KP33AE3 application, or MXLDA3KP33AE3 equivalent, key selection criteria include its 33 V working voltage, 53.3 V clamping performance at 56.2 A, RoHS-compliant e3 marking, -55 °C to +150 °C operating range, and MIL-PRF-19500 upscreening capability for high-reliability deployments.
Technical Context
This TVS array uses silicon avalanche diode technology optimized for fast response (<100 ps rise time) and high-energy absorption in a single-package dual-diode configuration. Its unidirectional polarity ensures DC-biased line protection with cathode-defined pin 1, and it meets IEC61000-4-5 surge immunity requirements across multiple source impedances (2 Ω, 12 Ω, 42 Ω).
The device operates within a junction temperature range of -55 °C to +150 °C and features moisture sensitivity level 1 (no dry pack required per J-STD-020B). All units undergo lot-level surge testing and 3σ standby current screening per Micronote 129 for high-reliability applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 33 V - Maximum continuous reverse operating voltage before clamping begins |
| V(BR) min/max | 36.7–40.6 V @ 1 mA - Ensures reliable avalanche conduction onset across process variation |
| VC @ IPP | 53.3 V @ 56.2 A - Clamping voltage during 10/1000 µs surge defines maximum protected-circuit stress |
| PPP | 3000 W @ 10/1000 µs - Peak power handling capacity determines survivability under lightning-induced transients |
| ID @ VWM | 2 µA max - Ultra-low leakage preserves signal integrity and minimizes standby power loss |
| TJ/TSTG | -55 °C to +150 °C - Enables deployment in extended-temperature industrial and aerospace environments |
| RoHS | e3 marking - Confirms lead-free, RoHS-compliant termination and packaging per JEDEC standards |
Pinout & Package
MXLDA3KP33AE3 is housed in a void-free transfer-molded thermosetting epoxy package (UL94V-0 rated) with tin-lead or matte-tin plating. Pin 1 is marked by a dot on the top surface and is the cathode terminal; odd-numbered pins are cathodes per internal dual-diode structure.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (Anode common) | Primary surge current return path; must connect to protected line ground or low-impedance return |
| Pin 2 | Anode (Common) | Shared anode node for dual-diode configuration; connects to system ground or reference plane |
| Pin 3 | Cathode (Anode common) | Second surge current return path; enables differential or dual-rail protection topology |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables robust protection against IEC61000-4-5 Level 4 surges (4 kV, 42 Ω source) without failure |
| Clamping voltage ≤53.3 V | Limits downstream IC stress to safe levels during 56.2 A transient events in 24 V/32 V systems |
| MIL-PRF-19500 upscreening option | Supports high-reliability qualification for defense/aerospace programs requiring lot traceability and burn-in |
| Moisture sensitivity Level 1 | Eliminates baking requirement prior to reflow, reducing manufacturing cost and handling risk |
| Fast response time <100 ps | Provides effective ESD suppression per IEC61000-4-2 ±8 kV contact discharge |
Applications
| Industrial Power Supply Protection | Telecom Line Interface |
|---|---|
Use Scenario: 33 V DC input rail in programmable logic controller (PLC) power modules exposed to inductive load switching and nearby lightning coupling. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between input rail and chassis ground to shunt surge energy before reaching DC-DC converters. Use Value: Limits transient voltage to ≤53.3 V during 56.2 A events, preserving 36 V-rated MOSFETs and gate drivers downstream. | Use Scenario: Protection of RS-485 transceiver inputs in outdoor base station backhaul links subjected to induced RF and secondary lightning. IC Role / Device Role / Timing Role: Unidirectional TVS array connected across differential pair and ground to absorb common-mode surges while maintaining signal integrity. Use Value: Withstands 3000 W surges per IEC61000-4-5 (42 Ω, Class 4), enabling compliance without additional filtering stages. |
| Automotive Body Control Module | Renewable Energy Inverter DC Link |
Use Scenario: 33 V auxiliary supply rail in BCMs powering window lift motors and seat actuators, subject to load dump and alternator ripple. IC Role / Device Role / Timing Role: Standoff-clamp TVS placed at rail entry point to suppress load-dump spikes up to 60 V and 56.2 A pulses. Use Value: 33 V VWM matches nominal 24 V system derated for temperature, while 53.3 V VC protects 40 V-rated CAN transceivers and microcontrollers. | Use Scenario: DC link protection in solar string inverters where PV array transients couple into 30–40 V intermediate bus rails. IC Role / Device Role / Timing Role: High-power TVS array mounted directly at bus capacitor terminals to clamp fast-rising transients before reaching IGBT gate drivers. Use Value: 3000 W rating absorbs multi-cycle 10/1000 µs surges from grid-switching events, extending capacitor lifetime and preventing driver latch-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A | 600 W PPP rating, SMA package, 53.3 V VC @ 9.8 A IPP | Lower energy handling limits use to lower-tier surge classes (IEC61000-4-5 Class 2 only) | Select when board space is constrained and surge threat level is limited to EFT/ESD plus minor switching transients |
| SMCJ33A | 1500 W PPP rating, SMC package, 53.3 V VC @ 28.2 A IPP | Insufficient for Class 4 lightning (4 kV, 42 Ω); requires parallel devices for 3000 W duty | Choose for cost-sensitive industrial designs where full 3000 W headroom is not mandated by end-equipment standard |
Compared with SMAJ33A and SMCJ33A, MXLDA3KP33AE3 delivers double the pulse power handling of SMCJ33A and five times that of SMAJ33A in the same functional voltage class-enabling single-device Class 4 lightning compliance without layout redesign or thermal derating penalties.
Availability
MXLDA3KP33AE3 is available at Aetrix Electronics and suitable for industrial power supplies, telecom line interfaces, automotive body control modules, and renewable energy inverter DC links requiring stable component supply and long-term lifecycle support.
Supply support for MXLDA3KP33AE3 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 designed specifically for high-energy transient suppression in mission-critical systems where MIL-PRF-19500 screening, wide temperature operation, and guaranteed 3000 W surge capability are mandatory.
FAQ
What is the clamping voltage of MXLDA3KP33AE3 and how is it measured?
The clamping voltage (VC) of MXLDA3KP33AE3 is 53.3 V, measured at 56.2 A peak pulse current (IPP) under 10/1000 µs waveform conditions. This value represents the maximum voltage seen across the device during a standardized surge event and is critical for ensuring downstream components remain within their absolute maximum ratings. MXLDA3KP33AE3 achieves this clamping performance while maintaining low leakage (≤2 µA at 33 V) and fast response (<100 ps).
Is MXLDA3KP33AE3 RoHS compliant and what does the 'e3' suffix indicate?
Yes, MXLDA3KP33AE3 is RoHS compliant, as confirmed by the 'e3' suffix in its part number. Per Microsemi's nomenclature guide, 'e3' denotes lead-free, RoHS-compliant termination and packaging meeting JEDEC J-STD-020B Level 1 moisture sensitivity requirements. The device uses annealed matte-tin or tin-lead plating and requires no pre-reflow baking, simplifying manufacturing flow.
Can MXLDA3KP33AE3 be used for bidirectional transient protection?
No, MXLDA3KP33AE3 is a unidirectional TVS array, indicated by the absence of 'C' in its part number. Bidirectional variants (e.g., MXLDA3KP33CE3) exist in the same family but feature symmetrical clamping for AC or bipolar signal lines. MXLDA3KP33AE3 is intended for DC-biased applications such as 33 V power rails where polarity is fixed and cathode-to-ground connection is required.
What is the maximum operating temperature range for MXLDA3KP33AE3?
MXLDA3KP33AE3 operates across a junction and storage temperature range of -55 °C to +150 °C. This extended range supports deployment in harsh environments including under-hood automotive, outdoor telecom enclosures, and industrial motor drives. Derating curves (Figure 3 in RF01243 Rev B) define allowable pulse power reduction above 25 °C ambient to maintain reliability.
Does MXLDA3KP33AE3 meet IEC61000-4-5 Class 4 lightning surge requirements?
Yes, MXLDA3KP33AE3 meets IEC61000-4-5 Class 4 (4 kV test level) for secondary lightning protection when tested with a 42 Ω source impedance. Its 3000 W peak pulse power rating and 53.3 V clamping voltage ensure compliance without external circuitry. The device is also validated for Class 1–3 at 12 Ω and Class 2–4 at 2 Ω source impedances per the manufacturer's application guidance in RF01243.
MXLDA3KP33AE3 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):
- 33V
- Voltage - Breakdown (Min):
- 36.7V
- Voltage - Clamping (Max) @ Ipp:
- 53.3V
- Current - Peak Pulse (10/1000µs):
- 56.2A
- 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:
- -
MXLDA3KP33AE3 FAQ
1.How can I place an order for MXLDA3KP33AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLDA3KP33AE3 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 MXLDA3KP33AE3 reliable?
The price and inventory of MXLDA3KP33AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLDA3KP33AE3 is usually 5 days.
3.What payment methods are accepted for MXLDA3KP33AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLDA3KP33AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLDA3KP33AE3?
MXLDA3KP33AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLDA3KP33AE3 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 MXLDA3KP33AE3?
For technical support, including MXLDA3KP33AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLDA3KP33AE3 requirements.
6.How does Aetrix verify that MXLDA3KP33AE3 is sourced from the original manufacturer or authorized distributors?
All MXLDA3KP33AE3 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 MXLDA3KP33AE3 meets industry standards.
7.What is the process for return or replacement of MXLDA3KP33AE3?
All MXLDA3KP33AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MXLDA3KP33AE3, 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 MXLDA3KP33AE3 part is unused and in its original packaging.
Return procedure for MXLDA3KP33AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLDA3KP33AE3 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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