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Microchip Technology MDA3KP20AE3
- Part No.:
- MDA3KP20AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MDA3KP20AE3.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:7,388
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Product details
Overview
MDA3KP20AE3 from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array with 20 V standoff voltage (VWM), 22.2–24.5 V breakdown voltage (V(BR)), and 32.4 V maximum clamping voltage (VC) at 92.6 A peak pulse current (IPP). 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 DC power rails.
For engineers reviewing the MDA3KP20AE3 datasheet, MDA3KP20AE3 pinout, MDA3KP20AE3 application, or MDA3KP20AE3 equivalent, this device is selected for high-reliability 20 V DC rail protection where sub-100 ps response time, RoHS-compliant packaging, and MIL-PRF-19500 upscreening capability are required.
Technical Context
The MDA3KP20AE3 operates as a unidirectional avalanche diode-based TVS, triggered when reverse voltage exceeds its 22.2 V minimum breakdown threshold. Its clamping action limits transients to ≤32.4 V at 92.6 A (10/1000 µs waveform), enabling robust protection of downstream 24 V logic or power ICs without overstressing their absolute maximum ratings.
Designed for surface-mount vertical mounting, it features tin-lead or matte-tin terminations compliant with MIL-STD-750 Method 2026, UL94V-0 void-free epoxy body, and polarity defined by dot-marked Pin 1 (cathode). Standby leakage remains ≤2 µA at 20 V VWM across -55°C to +150°C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 20 V - Maximum continuous DC operating voltage before conduction begins; matches nominal 24 V supply rails with margin. |
| V(BR) min/max | 22.2–24.5 V - Confirmed avalanche onset range at 1 mA; ensures reliable triggering above system operating voltage. |
| VC @ IPP | 32.4 V - Clamped voltage during 92.6 A transient; stays below 36 V IC damage thresholds in 24 V systems. |
| PPP | 3000 W - Peak pulse power handling at 10/1000 µs waveform; supports IEC61000-4-5 Level 4 surge testing. |
| ID @ VWM | ≤2 µA - Ultra-low leakage at rated standoff; avoids measurable power loss in battery-backed or low-quiescent circuits. |
| TJ/TSTG | -55 to +150 °C - Extended thermal range enables use in automotive under-hood, industrial motor drives, and outdoor telecom equipment. |
Pinout & Package
MDA3KP20AE3 uses a 2-pin DO-214AB (SMC) package with cathode marked by dot on top. Pin 1 is cathode; Pin 2 is anode. Body dimensions: 21.03–22.05 mm length × 6.86–7.87 mm width × 8.64–9.65 mm height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line (e.g., 24 V rail); conducts during overvoltage to shunt energy to ground. |
| Pin 2 | Anode | Connected to reference plane (e.g., GND or return path); completes clamping path during transient events. |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables compliance with IEC61000-4-5 Class 4 (42 Ω source) without external series impedance. |
| Sub-100 ps response time | Clamps ESD events before sensitive CMOS inputs reach destructive voltage levels. |
| MIL-PRF-19500 upscreening option | Supports high-reliability aerospace and defense programs requiring lot traceability and 3σ ID screening. |
| RoHS-compliant e3 marking | Meets EU Directive 2011/65/EU; tin-lead or matte-tin plating ensures solderability without lead-free reflow complications. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of 24 V control logic inputs against inductive kickback from relay coils and contactors. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input signal line and chassis ground to clamp negative transients. Use Value: Prevents latch-up or gate oxide rupture in microcontrollers and optocouplers exposed to >1 kV spikes. | Use Scenario: Secondary surge protection on -48 V DC telecom rectifier outputs feeding base station backplanes. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing residual surges after primary MOV/GDT stages. Use Value: Maintains <2 µA leakage to avoid derating of upstream DC-DC converters while clamping to ≤32.4 V. |
| Automotive Body Control Modules | Renewable Energy Inverters |
Use Scenario: Input protection for LIN bus transceivers connected to 12 V battery-supplied nodes subject to load dump. IC Role / Device Role / Timing Role: Cathode-to-line placement absorbs positive transients exceeding 20 V standoff during ISO 7637-2 Pulse 5a events. Use Value: Survives 3000 W pulses without degradation, preserving signal integrity across 19.2 kbps LIN communication. | Use Scenario: DC-link overvoltage suppression in solar string inverters exposed to lightning-induced surges on PV arrays. IC Role / Device Role / Timing Role: Parallel-connected TVS on 600–1000 V DC bus to limit transient overshoot during grid fault recovery. Use Value: 32.4 V clamping irrelevant here; instead, MDA3KP20AE3 serves as auxiliary clamp in low-voltage auxiliary supply monitoring circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ20A | 600 W PPP rating; same VWM/V(BR)/VC specs but lower surge capacity. | Limited to IEC61000-4-5 Class 2 (42 Ω) or Class 3 (12 Ω); insufficient for Class 4. | Select when board space is constrained and surge threat level is moderate. |
| 1.5KE20A | Through-hole TO-204AA package; 1500 W PPP; higher thermal mass but no SMT compatibility. | Requires PCB through-hole layout; unsuitable for automated assembly or high-density designs. | Choose only for legacy repair or prototyping where rework tolerance outweighs production efficiency. |
Compared with SMBJ20A and 1.5KE20A, MDA3KP20AE3 delivers 2× higher peak pulse power in SMT form factor with MIL-PRF-19500 screening support-critical for mission-critical 24 V rail protection where single-event survivability and long-term reliability are non-negotiable.
Availability
MDA3KP20AE3 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive body control modules, and renewable energy inverters requiring stable component supply across extended product lifecycles.
Supply support for MDA3KP20AE3 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 discrete protection devices.
The MDA3KP series was engineered for high-energy transient suppression in harsh environments-targeting aerospace, defense, industrial automation, and infrastructure systems demanding MIL-spec screening and IEC-compliant surge immunity.
FAQ
What is the clamping voltage of MDA3KP20AE3 at its rated peak pulse current?
The MDA3KP20AE3 has a maximum clamping voltage (VC) of 32.4 V at its rated peak pulse current (IPP) of 92.6 A under 10/1000 µs waveform conditions. This value is measured per standard test methods and guarantees that downstream 24 V-rated components remain within safe operating voltage limits during surge events. The MDA3KP20AE3 maintains this clamping performance across its full operating temperature range.
Is MDA3KP20AE3 RoHS-compliant and what does the 'e3' suffix indicate?
Yes, MDA3KP20AE3 is RoHS-compliant, as confirmed by the 'e3' suffix in its part number per Microsemi's nomenclature guide. The 'e3' designation specifies matte-tin termination plating meeting EU Directive 2011/65/EU requirements. This ensures compatibility with lead-free soldering processes while maintaining solderability per MIL-STD-750 Method 2026. The MDA3KP20AE3 also complies with IPC/JEDEC J-STD-020B moisture sensitivity Level 1.
Can MDA3KP20AE3 be used for bidirectional transient protection?
No, MDA3KP20AE3 is a unidirectional TVS device, as indicated by the absence of 'C' in its part number. Bidirectional variants (e.g., MDA3KP20CE3) are available separately with symmetrical clamping for AC-coupled or dual-polarity lines. Using MDA3KP20AE3 in bidirectional applications risks failure during reverse-polarity transients, since it conducts only in reverse bias. Always verify polarity alignment before placing MDA3KP20AE3 in circuit.
What is the standoff voltage rating and how does it relate to system design?
The MDA3KP20AE3 has a rated working standoff voltage (VWM) of 20 V, meaning it remains non-conductive up to this DC or peak AC voltage under normal operation. Designers select this value to be ≥10–20% above the maximum steady-state rail voltage-e.g., for a 24 V nominal system, 20 V VWM provides appropriate margin while ensuring early clamping before damaging overvoltages occur. Exceeding VWM risks premature conduction and accelerated wear of the MDA3KP20AE3.
Does MDA3KP20AE3 support high-reliability screening per military standards?
Yes, MDA3KP20AE3 supports optional upscreening per MIL-PRF-19500, including wafer-level traceability, 3σ lot norm screening on standby current (ID), and conformance inspections. This capability is documented in Micronote 129 and applies to the base MDA3KP20AE3 construction. Customers requiring screened units must specify screening levels at order time; standard MDA3KP20AE3 units ship without screening unless explicitly requested.
MDA3KP20AE3 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):
- 20V
- Voltage - Breakdown (Min):
- 22.2V
- Voltage - Clamping (Max) @ Ipp:
- 32.4V
- Current - Peak Pulse (10/1000µs):
- 92.6A
- 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:
- -
MDA3KP20AE3 FAQ
1.How can I place an order for MDA3KP20AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MDA3KP20AE3 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 MDA3KP20AE3 reliable?
The price and inventory of MDA3KP20AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MDA3KP20AE3 is usually 5 days.
3.What payment methods are accepted for MDA3KP20AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MDA3KP20AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MDA3KP20AE3?
MDA3KP20AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MDA3KP20AE3 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 MDA3KP20AE3?
For technical support, including MDA3KP20AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MDA3KP20AE3 requirements.
6.How does Aetrix verify that MDA3KP20AE3 is sourced from the original manufacturer or authorized distributors?
All MDA3KP20AE3 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 MDA3KP20AE3 meets industry standards.
7.What is the process for return or replacement of MDA3KP20AE3?
All MDA3KP20AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MDA3KP20AE3, 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 MDA3KP20AE3 part is unused and in its original packaging.
Return procedure for MDA3KP20AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MDA3KP20AE3 Tags
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Toshiba Semiconductor and Storage
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