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Microchip Technology MADA3KP40A
- Part No.:
- MADA3KP40A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MADA3KP40A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,249
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Product details
Overview
MADA3KP40A from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array designed for high-reliability overvoltage protection in industrial and aerospace systems. It features a 40 V standoff voltage (VWM), 44.4–49.1 V breakdown range (V(BR)), 64.5 V maximum clamping voltage at 46.4 A peak pulse current, and operates from −55 °C to +150 °C. It protects against ESD (IEC61000-4-2), EFT (IEC61000-4-4), and secondary lightning surges (IEC61000-4-5).
For engineers reviewing the MADA3KP40A datasheet, MADA3KP40A pinout, MADA3KP40A application, or MADA3KP40A equivalent, key selection criteria include standoff voltage matching, clamping performance under 10/1000 µs surge, thermal derating above 25 °C, and MIL-PRF-19500 upscreening eligibility for high-reliability deployments.
Technical Context
The MADA3KP40A is a single-channel, unidirectional TVS diode optimized for fast transient suppression with <100 ps response time. Its silicon avalanche structure delivers precise breakdown at 44.4–49.1 V and clamps to ≤64.5 V at 46.4 A (10/1000 µs waveform), enabling robust protection of 40 V-rated power rails and signal lines.
It meets IEC61000-4-5 Class 1–4 secondary lightning immunity with 42 Ω source impedance and Class 1–3 with 12 Ω, while maintaining 2 µA standby current at VWM and full operation across −55 °C to +150 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 40 V - Maximum continuous DC or peak AC voltage the device blocks without conduction. |
| V(BR) min/max | 44.4–49.1 V - Breakdown occurs within this range at 1 mA, ensuring predictable turn-on margin above operating rail. |
| VC @ IPP | 64.5 V @ 46.4 A - Clamping voltage during 10/1000 µs surge; defines maximum stress imposed on protected circuitry. |
| PPP | 3000 W - Peak pulse power handling capability under standard 10/1000 µs waveform, confirming suitability for severe transients. |
| ID @ VWM | 2 µA - Ultra-low leakage at rated standoff, minimizing power loss and avoiding false triggering in high-impedance circuits. |
| TJ/TSTG | −55 °C to +150 °C - Extended thermal range supports deployment in harsh environments including avionics and downhole equipment. |
Pinout & Package
Package: DO-218AB (standardized surface-mount case per Microsemi RF01243 Rev B), void-free thermosetting epoxy body (UL94V-0), tin-lead or matte-tin plating, ~5 g weight. Pin 1 marked by dot; odd-numbered pins are cathodes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line; 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. |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables protection against high-energy transients such as lightning-induced surges and inductive switching spikes without failure. |
| 44.4–49.1 V breakdown tolerance | Ensures reliable activation above 40 V nominal rail while accommodating manufacturing variation and temperature drift. |
| MIL-PRF-19500 upscreening option | Supports high-reliability qualification for military, space, and critical infrastructure applications with lot traceability and 3σ ID screening. |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and bake-out prior to reflow, simplifying SMT assembly and reducing process risk. |
Applications
| Industrial Motor Drives | Aerospace Power Distribution |
|---|---|
Use Scenario: Protection of 40 V DC bus inputs against inductive kickback from contactors and relay coils. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient overvoltage before it reaches DC-DC converters or microcontrollers. Use Value: Prevents latch-up or permanent damage to downstream 40 V-rated components during frequent switching events. | Use Scenario: Secondary lightning surge protection on 28 V aircraft power distribution panels with 42 Ω source impedance. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp meeting IEC61000-4-5 Class 4 requirements for airborne electronics. Use Value: Maintains system uptime by absorbing 3000 W surges without degradation across −55 °C to +150 °C operational envelope. |
| Telecom Base Station Power | Railway Signaling Interface |
Use Scenario: Input protection for remote radio unit (RRU) power supplies exposed to induced RF and load dump events. IC Role / Device Role / Timing Role: Standoff-rated TVS suppressing EFT bursts (IEC61000-4-4) and ESD (IEC61000-4-2) on 48 V input rails. Use Value: Delivers <100 ps response and 2 µA leakage, preserving signal integrity and minimizing standby power loss. | Use Scenario: Protection of 36–40 V signaling lines in European railway interlocking systems subject to traction current transients. IC Role / Device Role / Timing Role: High-reliability TVS qualified to MIL-PRF-19500 screening levels for mission-critical safety interfaces. Use Value: Ensures functional safety compliance via wafer-lot traceability and 100% surge testing per production lot. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ40A | 600 W PPP rating, DO-214AA package, 64.5 V VC @ 9.7 A - lower surge capacity and different thermal mass. | Targeted at consumer-grade 40 V rail protection; not qualified to MIL-PRF-19500 or rated for >125 °C operation. | Select SMBJ40A only for cost-sensitive, non-mission-critical designs where 3000 W surge immunity is unnecessary. |
| SMCJ40A | 1500 W PPP rating, DO-214AB package, 64.5 V VC @ 23.3 A - half the peak power handling of MADA3KP40A. | Suitable for industrial automation with moderate surge exposure; lacks extended temperature range and upscreening path. | Choose SMCJ40A when board space allows larger DO-214AB footprint and MIL-spec reliability is not required. |
Compared with SMBJ40A and SMCJ40A, the MADA3KP40A provides double the surge energy absorption of SMCJ40A and five times that of SMBJ40A, along with full −55 °C to +150 °C operation and optional MIL-PRF-19500 screening-making it uniquely suited for aerospace, defense, and high-end industrial platforms.
Availability
MADA3KP40A is available at Aetrix Electronics and suitable for industrial motor drives, aerospace power distribution, telecom base station power, and railway signaling interfaces requiring stable component supply, long-term lifecycle support, and traceable high-reliability sourcing.
Supply support for MADA3KP40A 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 radiation-hardened components.
The MDA3KP series was developed to deliver ultra-high-power transient suppression in compact surface-mount packages for mission-critical systems where failure is not an option.
FAQ
What is the clamping voltage of the MADA3KP40A under a 10/1000 µs surge?
The MADA3KP40A exhibits a maximum clamping voltage (VC) of 64.5 V when subjected to its rated peak pulse current of 46.4 A under the standard 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during surge events. The MADA3KP40A maintains this clamping performance consistently due to its robust silicon avalanche structure and thermally optimized DO-218AB package.
Is the MADA3KP40A RoHS compliant?
Yes, the MADA3KP40A is RoHS compliant, indicated by the "e3" suffix in its full marking per Microsemi's nomenclature guide. The device uses annealed matte-tin plating on terminals and a UL94V-0 thermosetting epoxy body, fully conforming to Directive 2011/65/EU. No lead or other restricted substances exceed allowable thresholds, and the MADA3KP40A requires no special handling or exemptions for RoHS-compliant manufacturing.
Does the MADA3KP40A support MIL-PRF-19500 upscreening?
Yes, the MADA3KP40A supports optional MIL-PRF-19500 upscreening with multiple conformance inspection levels, including 3σ lot norm screening on standby current (ID). This qualification path enables use in defense, aerospace, and critical infrastructure applications where lot traceability, burn-in, and parametric stability are mandatory. The MADA3KP40A's wafer fabrication and assembly processes are fully aligned with MIL-PRF-19500 requirements when ordered with appropriate screening codes.
What is the maximum operating temperature for the MADA3KP40A?
The MADA3KP40A has a specified junction and storage temperature range of −55 °C to +150 °C. This extended thermal envelope allows reliable operation in extreme environments such as engine compartments, avionics bays, and downhole oilfield equipment. Derating of peak pulse power begins above 25 °C per Figure 3 in the RF01243 datasheet, but the MADA3KP40A remains fully functional and protective across its entire rated temperature span.
How does the MADA3KP40A differ from bidirectional variants like MDA3KP40CA?
The MADA3KP40A is unidirectional and designed for DC rail protection where polarity is fixed, offering forward conduction capability (VFS = 4.0 V @ 500 A) and asymmetric clamping. In contrast, MDA3KP40CA is bidirectional and intended for AC or floating signal lines, with symmetrical breakdown in both directions. The MADA3KP40A's unidirectional architecture provides lower leakage and tighter V(BR) tolerance, making it optimal for 40 V DC power rail protection where reverse conduction is neither needed nor desired.
MADA3KP40A 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):
- 40V
- Voltage - Breakdown (Min):
- 44.4V
- Voltage - Clamping (Max) @ Ipp:
- 64.5V
- Current - Peak Pulse (10/1000µs):
- 46.4A
- 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:
- -
MADA3KP40A FAQ
1.How can I place an order for MADA3KP40A through Aetrix?
Please submit a Request for Quotation (RFQ) for MADA3KP40A 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 MADA3KP40A reliable?
The price and inventory of MADA3KP40A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MADA3KP40A is usually 5 days.
3.What payment methods are accepted for MADA3KP40A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MADA3KP40A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MADA3KP40A?
MADA3KP40A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MADA3KP40A 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 MADA3KP40A?
For technical support, including MADA3KP40A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MADA3KP40A requirements.
6.How does Aetrix verify that MADA3KP40A is sourced from the original manufacturer or authorized distributors?
All MADA3KP40A 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 MADA3KP40A meets industry standards.
7.What is the process for return or replacement of MADA3KP40A?
All MADA3KP40A units undergo pre-shipment inspection (PSI). If there is an issue with MADA3KP40A, 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 MADA3KP40A part is unused and in its original packaging.
Return procedure for MADA3KP40A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MADA3KP40A Tags
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