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Microchip Technology MADA3KP24A
- Part No.:
- MADA3KP24A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MADA3KP24A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:7,791
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Product details
Overview
MADA3KP24A from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array designed for high-reliability overvoltage protection in power rails and signal lines. It features a 24 V standoff voltage (VWM), 26.7–29.5 V breakdown range (V(BR)), 38.9 V maximum clamping voltage at 77.2 A peak pulse current, and operates from −55 °C to +150 °C - used in industrial motor drives, telecom power supplies, and railway signaling interfaces.
For engineers reviewing the MADA3KP24A datasheet, MADA3KP24A pinout, MADA3KP24A application, or MADA3KP24A equivalent, key selection criteria include clamping performance under 10/1000 µs surge, standoff voltage margin relative to system DC rail, thermal derating above 25 °C, and compliance with IEC61000-4-2/4-4/4-5 for ESD, EFT, and secondary lightning protection.
Technical Context
The MADA3KP24A is a single-channel, unidirectional TVS diode optimized for fast clamping of high-energy transients. Its sub-100 ps response time enables effective suppression of ESD events per IEC61000-4-2, while its 3000 W peak pulse power rating at 10/1000 µs waveform supports robust protection against inductive switching surges and induced RF transients.
It complies with MIL-PRF-19500 screening options for high-reliability applications and uses void-free UL94V-0 epoxy packaging with tin-lead or matte-tin terminations. Polarity is defined by dot marking; odd-numbered pins are cathodes, confirming its unidirectional configuration per part nomenclature and mechanical drawings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - maximum continuous reverse operating voltage before clamping begins; must exceed peak system DC rail voltage. |
| V(BR) min–max | 26.7–29.5 V @ 1 mA - guaranteed breakdown onset range; ensures predictable turn-on margin above VWM. |
| VC @ IPP | 38.9 V @ 77.2 A - clamping voltage during full 10/1000 µs surge; defines worst-case voltage seen by protected IC. |
| PPP | 3000 W @ 10/1000 µs - peak surge energy handling capacity; validates suitability for Class 3/4 IEC61000-4-5 lightning tests. |
| ID @ VWM | ≤2 µA - ultra-low leakage at rated standoff; prevents measurable power loss or bias shift in high-impedance circuits. |
| TJ/TSTG | −55 to +150 °C - extended thermal range supports operation in harsh environments like engine bays or outdoor base stations. |
Pinout & Package
Package: Surface-mount DO-214AB (SMC) molded thermosetting epoxy case, UL94V-0 rated, ~5 g weight, with polarity dot marking indicating Pin 1 as cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line; conducts surge current to ground when V > V(BR); marked by dot on package top. |
| Pin 2 | Anode | Connected to system ground reference; completes conduction path during transient clamping event. |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables single-device protection against severe 10/1000 µs surges up to 77.2 A without degradation. |
| Sub-100 ps response time | Clamps ESD events before sensitive logic or analog circuitry sustains damage per IEC61000-4-2 Level 4. |
| MIL-PRF-19500 screening option | Supports aerospace, defense, and rail applications requiring lot traceability, 3σ ID screening, and wafer-level reliability data. |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and bake-out prior to reflow, reducing manufacturing cost and process complexity. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensing lines against inductive kickback from IGBTs and MOSFETs during switching. IC Role / Device Role / Timing Role: Unidirectional TVS placed between driver output and ground to clamp negative-going transients below safe IC input limits. Use Value: Prevents latch-up or permanent damage to isolated gate drivers (e.g., Si823x) by limiting transient voltage to ≤38.9 V during 77.2 A surges. | Use Scenario: Input-stage surge protection on 24 V/48 V DC-DC converter front-ends exposed to lightning-induced surges per IEC61000-4-5. IC Role / Device Role / Timing Role: Primary overvoltage clamp on bulk input rail, coordinated with upstream fuse and downstream TVS arrays. Use Value: Absorbs up to 3000 W of surge energy while maintaining clamped voltage below 39 V, preserving input capacitor and controller IC integrity. |
| Railway Signaling Interfaces | Medical Imaging Power Rails |
Use Scenario: Protection of 24 V signaling lines in track-side equipment subject to electromagnetic coupling from traction currents and lightning. IC Role / Device Role / Timing Role: Unidirectional TVS on CAN or RS-485 bus power rails to suppress coupled transients without affecting signal integrity. Use Value: Clamps induced surges within 100 ps while maintaining <2 µA leakage, avoiding false triggering or baseline drift in low-current sensor interfaces. | Use Scenario: Overvoltage safeguard on high-stability ±15 V analog supply rails powering CT/MRI detector front-end amplifiers. IC Role / Device Role / Timing Role: Secondary protection device after primary filtering, placed adjacent to precision LDOs to limit fault voltage propagation. Use Value: Limits transient overshoot to ≤38.9 V during EFT bursts, preventing amplifier saturation or ADC reference corruption in sub-mV resolution systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A | 600 W PPP rating, same VWM and VC, but lower IPP (32.4 A) and smaller SMB package. | Suitable for lower-energy environments (e.g., consumer USB ports); insufficient for IEC61000-4-5 Class 3/4. | Select SMBJ24A only if surge threat level is limited to ESD/EFT and board space is constrained. |
| 1.5KE24A | Through-hole TO-204AA (DO-41), 1500 W PPP, higher VC (43.5 V), same VWM. | Requires PCB through-hole mounting; less suitable for automated SMT production and high-vibration environments. | Choose 1.5KE24A only when legacy through-hole design or higher thermal mass is prioritized over SMT compatibility. |
Compared with SMBJ24A and 1.5KE24A, the MADA3KP24A delivers 2× higher surge energy handling than SMBJ24A and 2× higher than 1.5KE24A in an SMT package, enabling single-device compliance with demanding IEC61000-4-5 Class 3/4 testing at 24 V system level.
Availability
MADA3KP24A is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and railway signaling interfaces requiring stable component supply across long-life product cycles.
Supply support for MADA3KP24A 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, communications, and industrial markets.
The MDA3KP series was developed specifically for high-energy transient suppression in mission-critical power and interface circuits where failure tolerance, surge repeatability, and MIL-spec screening are mandatory.
FAQ
What is the clamping voltage of the MADA3KP24A at its rated peak pulse current?
The MADA3KP24A has a maximum clamping voltage (VC) of 38.9 V at its rated peak pulse current (IPP) of 77.2 A under 10/1000 µs waveform conditions. This value is measured per standard test methods and defines the upper voltage limit imposed on protected circuitry during full-rated surge events. The MADA3KP24A maintains this clamping performance across its qualified temperature range and after multiple surge exposures, provided derating curves are followed.
Is the MADA3KP24A RoHS compliant?
Yes, the MADA3KP24A is RoHS compliant, indicated by the "e3" suffix in its full manufacturer marking per Microsemi's part nomenclature. It uses annealed matte-tin plating on terminations and meets lead-free soldering requirements up to 260 °C for 10 seconds. The MADA3KP24A conforms to IPC/JEDEC J-STD-020B moisture sensitivity Level 1, eliminating dry-pack requirements prior to reflow assembly.
Can the MADA3KP24A be used for bidirectional transient protection?
No, the MADA3KP24A is unidirectional only, as confirmed by its part number suffix "A" (not "CA") and polarity marking: Pin 1 is cathode, Pin 2 is anode. Bidirectional variants such as MADA3KP24CA exist in the same family but feature symmetrical clamping in both directions. Using the MADA3KP24A in bidirectional signal paths risks forward conduction during negative transients, potentially damaging downstream circuitry.
What is the maximum operating temperature for the MADA3KP24A?
The MADA3KP24A has a junction and storage temperature range of −55 °C to +150 °C, verified per absolute maximum ratings in the official datasheet. Its power derating curve (Figure 3) shows linear reduction of peak pulse power above 25 °C ambient, reaching ~50% of rated 3000 W at +100 °C case temperature. This makes the MADA3KP24A suitable for under-hood automotive modules or outdoor telecom enclosures where thermal management is constrained.
Does the MADA3KP24A require external current limiting for ESD protection?
No, the MADA3KP24A does not require external series impedance for ESD protection per IEC61000-4-2, as its intrinsic dynamic resistance and fast response (<100 ps) enable direct clamping without added components. However, for sustained overvoltage conditions (e.g., DC fault), a series fuse or PTC is recommended upstream to prevent thermal runaway. The MADA3KP24A's 2 µA standby current at 24 V ensures negligible loading on source circuits during normal operation.
MADA3KP24A 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):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 38.9V
- Current - Peak Pulse (10/1000µs):
- 77.2A
- 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:
- -
MADA3KP24A FAQ
1.How can I place an order for MADA3KP24A through Aetrix?
Please submit a Request for Quotation (RFQ) for MADA3KP24A 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 MADA3KP24A reliable?
The price and inventory of MADA3KP24A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MADA3KP24A is usually 5 days.
3.What payment methods are accepted for MADA3KP24A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MADA3KP24A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MADA3KP24A?
MADA3KP24A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MADA3KP24A 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 MADA3KP24A?
For technical support, including MADA3KP24A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MADA3KP24A requirements.
6.How does Aetrix verify that MADA3KP24A is sourced from the original manufacturer or authorized distributors?
All MADA3KP24A 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 MADA3KP24A meets industry standards.
7.What is the process for return or replacement of MADA3KP24A?
All MADA3KP24A units undergo pre-shipment inspection (PSI). If there is an issue with MADA3KP24A, 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 MADA3KP24A part is unused and in its original packaging.
Return procedure for MADA3KP24A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MADA3KP24A Tags
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