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Microchip Technology MDA3KP22CA
- Part No.:
- MDA3KP22CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MDA3KP22CA.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,155
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Product details
Overview
MDA3KP22CA from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array in a surface-mount package, designed for high-reliability secondary lightning and ESD protection. It features a 22 V reverse standoff voltage (VWM), 24.4–26.9 V breakdown voltage (V(BR)), 35.5 V maximum clamping voltage at 84.4 A peak pulse current, and operates from –55 °C to +150 °C. It is used in telecom power interfaces and industrial control I/O protection.
For engineers reviewing the MDA3KP22CA datasheet, MDA3KP22CA pinout, MDA3KP22CA application, or MDA3KP22CA equivalent, key selection criteria include bidirectional polarity, 10/1000 µs surge rating, IEC61000-4-2/4-4/4-5 compliance, clamping performance at rated IPP, and MIL-PRF-19500 upscreening eligibility.
Technical Context
The MDA3KP22CA is a silicon avalanche diode-based TVS array with bidirectional conduction, enabling symmetrical transient suppression on AC-coupled or floating lines. Its sub-5 ns response time ensures effective clamping of ESD (IEC61000-4-2), EFT (IEC61000-4-4), and lightning-induced surges (IEC61000-4-5 with 2–42 Ω source impedance).
It delivers 3000 W peak pulse power at 10/1000 µs waveform, with clamping voltage tightly specified at 35.5 V (max) under 84.4 A IPP. Standby leakage is ≤2 µA at 22 V, supporting low-power system monitoring without loading sensitive inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - Maximum continuous operating voltage before clamping begins; matches 18–24 V DC supply rails or AC line peaks. |
| V(BR) min/max | 24.4–26.9 V - Breakdown occurs within this range at 1 mA; ensures predictable turn-on margin above VWM. |
| VC @ IPP | 35.5 V max at 84.4 A - Clamping voltage limits downstream IC stress during worst-case 10/1000 µs surge. |
| PPP | 3000 W @ 10/1000 µs - Sustains high-energy transients common in industrial and telecom surge environments. |
| ID @ VWM | ≤2 µA - Negligible standby leakage preserves battery life and avoids false triggering in high-impedance sensing paths. |
| TJ/TSTG | –55 °C to +150 °C - Supports operation in harsh environments including automotive engine bays and outdoor base stations. |
Pinout & Package
MDA3KP22CA uses a 2-pin surface-mount DO-214AB (SMC) package with void-free UL94V-0 epoxy body, tin-lead or matte-tin plating, and polarity marked by a dot indicating Pin 1 as cathode (bidirectional symmetry means both terminals function identically).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (Bidirectional) | Identified by dot marking; functions as cathode in unidirectional mode; symmetrically clamps in either direction for AC protection. |
| Pin 2 | Anode (Bidirectional) | Unmarked terminal; electrically identical to Pin 1 in bidirectional configuration; enables placement across differential or floating lines. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables single-device protection of AC signals, RS-485 buses, or transformer-coupled interfaces without polarity concerns. |
| 3000 W peak pulse power | Withstands high-energy surges per IEC61000-4-5 Class 3 (42 Ω) and Class 4 (12 Ω), reducing need for multi-stage protection. |
| MIL-PRF-19500 upscreening option | Supports high-reliability aerospace and defense programs requiring lot traceability, 3σ screening, and extended temperature validation. |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and bake-out prior to reflow, simplifying manufacturing and reducing assembly cost. |
Applications
| Telecom Line Interface Protection | Industrial PLC Analog I/O Protection |
|---|---|
Use Scenario: Protecting DSL or T1/E1 line drivers from induced surges and lightning coupling on outdoor copper pairs. IC Role / Device Role / Timing Role: Primary shunt TVS placed at connector entry point to clamp transients before reaching line driver ICs. Use Value: 35.5 V clamping ensures protected ICs see <36 V stress during 84.4 A surges, preserving 3.3 V/5 V interface integrity. | Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers exposed to motor switching noise. IC Role / Device Role / Timing Role: Bidirectional TVS across input terminals to suppress both positive and negative polarity transients from inductive load switching. Use Value: Sub-5 ns response prevents transient energy from propagating into precision ADC front-ends, maintaining measurement accuracy. |
| Automotive Body Control Module (BCM) Power Input | Medical Equipment ESD-Sensitive Sensor Ports |
Use Scenario: Guarding 12 V power rail inputs in BCMs against load dump and jump-start transients per ISO 7637-2. IC Role / Device Role / Timing Role: Secondary protection stage after upstream fuse or polyfuse, clamping residual spikes exceeding 22 V. Use Value: 3000 W rating handles 100 ms load dump events without degradation, extending system field life. | Use Scenario: Shielding patient-connected biopotential sensors (ECG, EEG) from operator ESD per IEC61000-4-2 Level 4 (15 kV air). IC Role / Device Role / Timing Role: Low-leakage (≤2 µA) TVS placed directly at sensor connector to avoid signal path interference. Use Value: Minimal standby current prevents DC offset drift in high-gain instrumentation amplifiers, preserving diagnostic fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22CA | 600 W PPP rating, same VWM and bidirectional polarity, DO-214AA (SMB) package. | Lower surge capacity suits consumer-grade I/O; insufficient for IEC61000-4-5 Class 3/4. | Select when space-constrained layouts require smaller SMB footprint and surge demands are ≤600 W. |
| 1.5KE22CA | 3000 W PPP, axial-leaded DO-15 package, higher thermal resistance, no MIL screening option. | Through-hole mounting only; not suitable for automated SMT production or high-reliability upscreening programs. | Choose for legacy board upgrades or prototyping where leaded assembly is acceptable and RoHS compliance is not required. |
Compared with SMBJ22CA and 1.5KE22CA, the MDA3KP22CA uniquely combines SMT compatibility, 3000 W capability, bidirectional symmetry, and MIL-PRF-19500 upscreening readiness-making it optimal for volume-manufactured industrial and telecom systems demanding long-term reliability and surge robustness.
Availability
MDA3KP22CA is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and automotive electronics requiring stable component supply, long lifecycle support, and consistent surge performance across production batches.
Supply support for MDA3KP22CA 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, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The MDA series was developed specifically for mission-critical transient suppression in harsh environments, emphasizing MIL-qualified reliability, precise clamping, and seamless integration into automated SMT assembly lines.
FAQ
What is the clamping voltage of MDA3KP22CA at its rated peak pulse current?
The MDA3KP22CA 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 process variation, ensuring downstream circuitry remains below critical overvoltage thresholds during surge events. The clamping performance is validated per Figure 2 in the RF01243 datasheet.
Is MDA3KP22CA suitable for IEC61000-4-5 Class 4 secondary lightning protection?
Yes, MDA3KP22CA supports IEC61000-4-5 Class 4 secondary lightning protection when tested with a 12 Ω source impedance, as confirmed in the Applications/Benefits section of the RF01243 datasheet. Its 3000 W rating and 35.5 V clamping enable reliable protection for equipment connected to long cable runs in industrial or telecom settings.
Does MDA3KP22CA require dry packing or baking before SMT reflow?
No, MDA3KP22CA has IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it does not require dry packing or pre-reflow baking. This eliminates handling steps and reduces risk of moisture-related defects during reflow soldering, streamlining high-volume manufacturing.
What is the polarity configuration of MDA3KP22CA, and how is it marked?
MDA3KP22CA is a bidirectional TVS, indicated by the "C" suffix in its part number. Polarity is marked with a dot on the top of the package identifying Pin 1; both terminals behave identically under reverse or forward surge conditions, enabling flexible placement across differential or floating nodes without orientation constraints.
Can MDA3KP22CA be used in automotive applications requiring ISO 7637-2 compliance?
Yes, MDA3KP22CA's 3000 W peak pulse power and 35.5 V clamping voltage make it suitable for secondary protection in automotive body control modules per ISO 7637-2 Pulse 1, 2a, 3a/b, and 5a/b. Its –55 °C to +150 °C operating range and MIL-PRF-19500 upscreening option further support under-hood deployment.
MDA3KP22CA 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):
- 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:
- -
MDA3KP22CA FAQ
1.How can I place an order for MDA3KP22CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MDA3KP22CA 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 MDA3KP22CA reliable?
The price and inventory of MDA3KP22CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MDA3KP22CA is usually 5 days.
3.What payment methods are accepted for MDA3KP22CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MDA3KP22CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MDA3KP22CA?
MDA3KP22CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MDA3KP22CA 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 MDA3KP22CA?
For technical support, including MDA3KP22CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MDA3KP22CA requirements.
6.How does Aetrix verify that MDA3KP22CA is sourced from the original manufacturer or authorized distributors?
All MDA3KP22CA 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 MDA3KP22CA meets industry standards.
7.What is the process for return or replacement of MDA3KP22CA?
All MDA3KP22CA units undergo pre-shipment inspection (PSI). If there is an issue with MDA3KP22CA, 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 MDA3KP22CA part is unused and in its original packaging.
Return procedure for MDA3KP22CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MDA3KP22CA Tags
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