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Microchip Technology MXLDA3KP33CA
- Part No.:
- MXLDA3KP33CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXLDA3KP33CA.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:9,308
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Product details
Overview
MXLDA3KP33CA from Microsemi is a bidirectional 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, 12 Ω, and 2 Ω source impedances), ESD/EFT suppression per IEC61000-4-2/4-4, and inductive switching transient protection in telecom power interfaces.
For engineers reviewing the MXLDA3KP33CA datasheet, MXLDA3KP33CA pinout, MXLDA3KP33CA application, or MXLDA3KP33CA equivalent, this page delivers verified electrical parameters, bidirectional polarity mapping, IEC-compliant surge capability, package dimensions, and validated alternative options for industrial power rail and telecom interface protection design.
Technical Context
The MXLDA3KP33CA is a monolithic dual-diode TVS array configured in a center-tapped, common-cathode arrangement for bidirectional clamping across two terminals relative to ground. Its sub-100 ps response time enables effective suppression of ESD events and fast-rising transients without signal distortion.
It operates within -55 °C to +150 °C junction temperature range and maintains stable clamping performance under repetitive 10/1000 µs surges up to 3000 W with ≤0.05% duty factor. Standby leakage is limited to 2 µA at 33 V, ensuring minimal impact on low-power standby circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 33 V - Maximum continuous DC or peak AC voltage the device blocks without conduction |
| V(BR) min/max | 36.7–40.6 V @ 1 mA - Confirmed breakdown threshold ensures reliable turn-on before system overvoltage damage |
| VC @ IPP | 53.3 V @ 56.2 A - Clamping voltage during full 3000 W surge defines maximum protected circuit stress |
| IPP | 56.2 A - Peak impulse current capacity at 10/1000 µs waveform, directly tied to IEC61000-4-5 Class 3 compliance |
| ID @ VWM | 2 µA - Ultra-low leakage preserves battery life and signal integrity in always-on monitoring circuits |
| TJ/TSTG | -55 to +150 °C - Extended thermal range supports deployment in outdoor telecom cabinets and industrial motor drives |
Pinout & Package
MXLDA3KP33CA uses a 3-pin TO-220AC-style vertical surface-mount package (case outline per RF01243, Page 6). Pin 1 and Pin 3 are anode terminals; Pin 2 is the common cathode. Polarity marking: dot on top indicates Pin 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | Connects to protected line 1 (e.g., tip of telecom pair); forms one half of bidirectional clamp path |
| Pin 2 | Common Cathode | Reference node tied to system ground; enables symmetrical clamping in both voltage polarities |
| Pin 3 | Anode 2 | Connects to protected line 2 (e.g., ring of telecom pair); completes dual-line bidirectional protection |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of differential signal pairs (e.g., RS-485, T1/E1 lines) without polarity constraints |
| 3000 W peak pulse power | Meets IEC61000-4-5 Class 3 requirements with 12 Ω source impedance, covering telecom central office surge levels |
| RoHS-compliant e3 plating | Matte-tin terminal finish ensures solderability per MIL-STD-750 Method 2026 and eliminates lead-based assembly concerns |
| Moisture sensitivity Level 1 | No dry pack or baking required prior to reflow, reducing manufacturing handling cost and floor-life risk |
Applications
| Telecom Line Interface Protection | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: Protecting T1/E1 data lines in central office equipment against induced lightning surges and switching transients. IC Role / Device Role / Timing Role: Bidirectional TVS array clamping differential voltage between tip/ring conductors to ground. Use Value: Limits transient voltage to ≤53.3 V during 56.2 A surges, preserving transceiver IC integrity per GR-1089-CORE. | Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers exposed to field wiring faults. IC Role / Device Role / Timing Role: Fast-response voltage clamp absorbing inductive kickback from solenoid disconnects. Use Value: Sub-100 ps turn-on prevents >33 V excursion on analog front-end, avoiding ADC saturation or op-amp latch-up. |
| DC Power Rail Surge Suppression | Automotive Body Control Module Inputs |
Use Scenario: Secondary surge protection on 24 V DC power distribution boards in railway signaling systems. IC Role / Device Role / Timing Role: High-energy TVS shunting 3000 W transients to chassis ground during load dump or coupling events. Use Value: Withstands repeated 10/1000 µs surges while maintaining <2 µA leakage, minimizing standby power loss. | Use Scenario: Protecting LIN bus or sensor inputs in body control modules from ESD and battery reverse-connection transients. IC Role / Device Role / Timing Role: Bidirectional clamp referenced to vehicle ground, suppressing ±15 kV contact ESD per ISO 10605. Use Value: 53.3 V clamping ensures microcontroller I/O stays within absolute maximum ratings during ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33CA | 600 W rating (vs. 3000 W); DO-214AA package; 53.3 V VC same but IPP = 11.3 A | Lower energy handling limits use to consumer electronics or low-risk signal lines, not primary telecom surge paths | Select SMBJ33CA only when peak surge exposure is <600 W and PCB space is constrained |
| SMCJ33CA | 1500 W rating; DO-214AB package; 53.3 V VC; IPP = 28.1 A; same VWM/V(BR) | Mid-tier energy capacity suits industrial HMI panels and PoE-powered devices, but insufficient for IEC61000-4-5 Class 3 | Choose SMCJ33CA where 1500 W surge margin is acceptable and TO-220AC footprint is unavailable |
Compared with SMBJ33CA and SMCJ33CA, MXLDA3KP33CA delivers 5× and 2× higher peak pulse power respectively, enabling direct placement at primary entry points in telecom and rail infrastructure-without cascading protection stages or derating for ambient temperature.
Availability
MXLDA3KP33CA is available at Aetrix Electronics and suitable for telecom line interface protection, industrial PLC analog input protection, and DC power rail surge suppression requiring stable component supply across extended temperature ranges and high-reliability screening programs.
Supply support for MXLDA3KP33CA 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, industrial, and communications markets.
The MDA3KP series was engineered specifically for high-energy transient suppression in mission-critical infrastructure-emphasizing MIL-PRF-19500 screening readiness, 3000 W surge robustness, and bidirectional operation for differential communication lines.
FAQ
What is the clamping voltage of MXLDA3KP33CA at its rated peak pulse current?
The MXLDA3KP33CA has a maximum clamping voltage (VC) of 53.3 V at 56.2 A peak pulse current (IPP), measured under 10/1000 µs waveform conditions. This value defines the upper voltage limit imposed on protected circuitry during worst-case surge events and is critical for ensuring downstream components remain within their absolute maximum ratings. The MXLDA3KP33CA achieves this clamping performance while maintaining bidirectional symmetry across both protected lines.
Is MXLDA3KP33CA RoHS compliant and what is its terminal finish?
Yes, MXLDA3KP33CA is RoHS compliant (e3 marking), featuring annealed matte-tin plating on all terminals. This finish meets MIL-STD-750 Method 2026 for solderability and eliminates lead-based processing concerns. The matte-tin layer ensures consistent wetting during reflow soldering and supports long-term reliability in humid or thermally cycled environments-key for telecom and industrial deployments where field failure is unacceptable.
How does MXLDA3KP33CA support IEC61000-4-5 compliance in telecom applications?
MXLDA3KP33CA supports IEC61000-4-5 Class 3 compliance with 12 Ω source impedance, delivering 56.2 A peak current into the specified test circuit. Its 3000 W peak pulse power rating and 53.3 V clamping voltage ensure protected interfaces meet immunity thresholds for secondary lightning surges in central office and remote terminal equipment. The MXLDA3KP33CA's bidirectional structure allows direct integration into T1/E1 line transformers without polarity-sensitive layout constraints.
What is the standoff voltage and breakdown voltage range for MXLDA3KP33CA?
The MXLDA3KP33CA has a rated working standoff voltage (VWM) of 33 V and a minimum-to-maximum breakdown voltage (V(BR)) range of 36.7 V to 40.6 V at 1 mA test current. This 11% tolerance window ensures predictable turn-on behavior across production lots while maintaining sufficient margin above normal operating voltage-preventing false triggering during line transients or ripple. The MXLDA3KP33CA's V(BR) specification is validated per Microsemi RF01243 Rev B test methodology.
Does MXLDA3KP33CA require moisture-sensitive handling prior to assembly?
No, MXLDA3KP33CA has IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it may be stored indefinitely at ≤30 °C/60% RH without dry packing or baking. This eliminates floor-life tracking, pre-reflow baking steps, and associated yield risks in high-volume manufacturing. The MXLDA3KP33CA's void-free epoxy body and e3 terminations contribute to this robust moisture resistance-making it suitable for global contract manufacturing without special handling protocols.
MXLDA3KP33CA 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:
- -
- Bidirectional Channels:
- 8
- 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:
- -
MXLDA3KP33CA FAQ
1.How can I place an order for MXLDA3KP33CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLDA3KP33CA 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 MXLDA3KP33CA reliable?
The price and inventory of MXLDA3KP33CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLDA3KP33CA is usually 5 days.
3.What payment methods are accepted for MXLDA3KP33CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLDA3KP33CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLDA3KP33CA?
MXLDA3KP33CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLDA3KP33CA 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 MXLDA3KP33CA?
For technical support, including MXLDA3KP33CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLDA3KP33CA requirements.
6.How does Aetrix verify that MXLDA3KP33CA is sourced from the original manufacturer or authorized distributors?
All MXLDA3KP33CA 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 MXLDA3KP33CA meets industry standards.
7.What is the process for return or replacement of MXLDA3KP33CA?
All MXLDA3KP33CA units undergo pre-shipment inspection (PSI). If there is an issue with MXLDA3KP33CA, 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 MXLDA3KP33CA part is unused and in its original packaging.
Return procedure for MXLDA3KP33CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLDA3KP33CA Tags
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