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Microchip Technology MADA3KP22A
- Part No.:
- MADA3KP22A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MADA3KP22A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,018
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Product details
Overview
MDA3KP22A from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array designed for high-reliability secondary lightning and ESD protection in DC power rails and signal lines. It features a 22 V standoff voltage (VWM), 24.4–26.9 V breakdown range (V(BR)), 35.5 V clamping voltage at 84.4 A peak pulse current, and operates from –55 °C to +150 °C.
For engineers reviewing the MDA3KP22A datasheet, MDA3KP22A pinout, MDA3KP22A application, or MDA3KP22A equivalent, this device serves as a robust, RoHS-compliant TVS for IEC 61000-4-2/4-4/4-5-compliant surge protection in industrial power supplies, telecom interfaces, and automotive control modules requiring stable clamping performance under 10/1000 µs transients.
Technical Context
The MDA3KP22A employs silicon avalanche diode technology optimized for fast response (<100 ps rise time) and high-energy absorption in unidirectional configuration. Its clamping behavior is characterized at 84.4 A IPP with VC = 35.5 V under 10/1000 µs waveform, enabling reliable suppression of switching transients and induced RF surges.
It meets MIL-PRF-19500 screening options for high-reliability applications and is rated for 3σ lot norm screening on standby current (ID ≤ 2 µA at VWM = 22 V). The device uses void-free thermosetting epoxy packaging compliant with UL94V-0 and IPC/JEDEC J-STD-020B Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - Maximum continuous DC or peak AC voltage the device blocks without conduction. |
| V(BR) min/max | 24.4–26.9 V @ 1 mA - Ensures predictable avalanche initiation across production lots. |
| VC @ IPP | 35.5 V @ 84.4 A - Limits downstream voltage stress during 10/1000 µs surge events. |
| PPP | 3000 W @ 10/1000 µs - Sustains high-energy transients without thermal failure. |
| ID @ VWM | ≤2 µA - Minimizes leakage impact on low-power sensor or battery-backed circuits. |
| TJ/TSTG | –55 °C to +150 °C - Supports operation in harsh environments including engine compartments and industrial enclosures. |
Pinout & Package
MDA3KP22A is housed in a 3-pin surface-mount package with cathode-defined polarity: Pin 1 and Pin 3 are cathodes; Pin 2 is the common anode. The void-free thermosetting epoxy case meets UL94V-0, with tin-lead or matte-tin plating per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode of Channel 1 | Connected to protected line; conducts when voltage exceeds V(BR) relative to common anode. |
| Pin 2 | Common Anode | Reference node tied to system ground or return path; shared by both TVS channels. |
| Pin 3 | Cathode of Channel 2 | Second protected line input; enables dual-line unidirectional protection in single package. |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power rating | Enables single-device protection against severe IEC 61000-4-5 Class 3/4 surges with 42 Ω source impedance. |
| Unidirectional construction | Prevents reverse-bias leakage in DC-coupled power rail protection without blocking normal forward operation. |
| RoHS-compliant e3 marking | Meets global environmental compliance requirements without compromising surge performance or reliability. |
| MIL-PRF-19500 upscreening option | Supports aerospace and defense programs requiring traceable wafer/assembly lots and extended reliability testing. |
Applications
| Industrial Power Supply Protection | Telecom Line Interface |
|---|---|
Use Scenario: Protecting 24 V DC input rails in programmable logic controllers (PLCs) against load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS array clamping transient overvoltage before it reaches DC-DC converters and microcontrollers. Use Value: Limits peak rail voltage to ≤35.5 V during 84.4 A surges, preventing latch-up or permanent damage to downstream ICs. | Use Scenario: Shielding RS-485 transceiver data lines from EFT bursts and induced RF coupling in base station backhaul links. IC Role / Device Role / Timing Role: Fast-response (sub-100 ps) voltage clamp placed directly at connector entry point. Use Value: Maintains signal integrity by suppressing transients before they propagate into sensitive differential receivers. |
| Automotive Body Control Module | Renewable Energy Inverter DC Link |
Use Scenario: Safeguarding LIN bus and sensor supply lines in BCMs exposed to ISO 7637-2 pulse 1/2a/5a. IC Role / Device Role / Timing Role: Standoff-rated (22 V) TVS absorbing energy while maintaining low leakage (<2 µA) during sleep mode. Use Value: Extends battery life and ensures fail-safe operation under repeated low-energy transients. | Use Scenario: Protecting gate drivers and auxiliary power rails in solar string inverters subject to lightning-induced surges. IC Role / Device Role / Timing Role: High-temperature (150 °C max) TVS deployed near DC-link capacitors to absorb 3000 W pulses. Use Value: Prevents catastrophic failure during grid-side surge events without derating below 80% power at 100 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A | 600 W PPP rating, same VWM and V(BR) range, DO-214AA package, lower IPP (32.4 A) | Not suitable for IEC 61000-4-5 Class 4; limited to lower-energy ESD/EFT scenarios | Select when board space is constrained and surge threat level is Class 1–2 only. |
| SMCJ22A | 1500 W PPP rating, same VWM/V(BR), DO-214AB package, IPP = 61.5 A, higher VC = 36.5 V | Marginally supports Class 3 with 42 Ω source; insufficient for Class 4 secondary lightning | Choose where cost is prioritized over full 3000 W capability and MIL screening is not required. |
Compared with SMBJ22A and SMCJ22A, the MDA3KP22A delivers 2× and 2× higher peak pulse power respectively, enabling compliance with stringent IEC 61000-4-5 Class 4 and MIL-PRF-19500 upscreening-critical for mission-critical industrial and defense systems.
Availability
MDA3KP22A is available at Aetrix Electronics and suitable for industrial power supplies, telecom line interfaces, automotive body control modules, and renewable energy inverters requiring stable component supply with long-term lifecycle support.
Supply support for MDA3KP22A 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 safety-critical systems where MIL-PRF-19500 screening, wide temperature operation, and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of MDA3KP22A at its rated peak pulse current?
The MDA3KP22A has a maximum clamping voltage (VC) of 35.5 V at its rated peak pulse current (IPP) of 84.4 A under 10/1000 µs waveform conditions. This value is guaranteed across temperature and production lots, ensuring consistent overvoltage protection for downstream circuitry in MDA3KP22A-based designs.
Is MDA3KP22A bidirectional or unidirectional?
MDA3KP22A is unidirectional, as indicated by the absence of the "C" suffix in its part number. It conducts only when the cathode-to-anode voltage exceeds the breakdown range (24.4–26.9 V), making it suitable for DC power rail protection where reverse polarity must be blocked. Bidirectional variants like MDA3KP22CA are separate orderable parts.
Does MDA3KP22A meet IEC 61000-4-5 Class 4 requirements?
Yes, MDA3KP22A is rated for secondary lightning protection per IEC 61000-4-5 with 42 Ω source impedance up to Class 4, as confirmed in the official Microsemi documentation (RF01243 Rev B, Page 1). Its 3000 W peak pulse power and validated clamping performance enable compliance without external derating.
What is the package type and pin configuration of MDA3KP22A?
MDA3KP22A uses a 3-pin surface-mount package with pins arranged linearly: Pin 1 and Pin 3 are cathodes, Pin 2 is the common anode. The package is void-free thermosetting epoxy (UL94V-0), with dimensions approximately 21.03 × 6.86 × 8.64 mm (L × W × H), and polarity marked by a dot indicating Pin 1.
Can MDA3KP22A be used in automotive applications?
Yes, MDA3KP22A is qualified for automotive body control module applications due to its –55 °C to +150 °C operating range, low standby current (≤2 µA), and immunity to ISO 7637-2 pulses. It is commonly deployed on 24 V supply rails and LIN bus lines where high-reliability transient suppression is required, as verified in Microsemi's application guidance.
MADA3KP22A 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):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 35.5V
- Current - Peak Pulse (10/1000µs):
- 84.4A
- 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:
- -
MADA3KP22A FAQ
1.How can I place an order for MADA3KP22A through Aetrix?
Please submit a Request for Quotation (RFQ) for MADA3KP22A 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 MADA3KP22A reliable?
The price and inventory of MADA3KP22A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MADA3KP22A is usually 5 days.
3.What payment methods are accepted for MADA3KP22A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MADA3KP22A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MADA3KP22A?
MADA3KP22A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MADA3KP22A 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 MADA3KP22A?
For technical support, including MADA3KP22A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MADA3KP22A requirements.
6.How does Aetrix verify that MADA3KP22A is sourced from the original manufacturer or authorized distributors?
All MADA3KP22A 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 MADA3KP22A meets industry standards.
7.What is the process for return or replacement of MADA3KP22A?
All MADA3KP22A units undergo pre-shipment inspection (PSI). If there is an issue with MADA3KP22A, 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 MADA3KP22A part is unused and in its original packaging.
Return procedure for MADA3KP22A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MADA3KP22A Tags
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