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Microchip Technology MPLAD18KP130A
- Part No.:
- MPLAD18KP130A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD18KP130A.pdf
- Description:
- TVS DIODE 130VWM 209VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:6,215
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Product details
Overview
MPLAD18KP130A from Microsemi is a unidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace, automotive, and industrial power rails. It delivers 18,000 W peak pulse power at 10/1000 μs, clamps to ≤209 V at 1000 A, and features a 130 V reverse standoff voltage (VWM), 144–159 V breakdown voltage (V(BR)), and 0.7 °C/W junction-to-case thermal resistance.
For engineers reviewing the MPLAD18KP130A datasheet, MPLAD18KP130A pinout, MPLAD18KP130A application, or MPLAD18KP130A equivalent, this device is selected for secondary lightning protection per IEC 61000-4-5 (42 Ω, 12 Ω, and 2 Ω source impedances), RTCA DO-160F Waveform 4 Level 5 pin injection, and multi-stroke lightning compliance in aircraft systems.
Technical Context
The MPLAD18KP130A employs a silicon avalanche diode structure optimized for low clamping ratio and minimal thermal resistance. Its metal-base package enables direct heatsinking, supporting sustained surge handling under ≤0.05% duty cycle conditions with case temperature control.
It meets AEC-Q101 stress testing requirements and supports MIL-PRF-19500 upscreening options. The device operates across –55°C to +150°C junction temperature range and exhibits a +0.157 mV/°C temperature coefficient of breakdown voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 18,000 W - sustains single-stroke lightning surges without failure |
| Reverse Standoff Voltage (VWM) | 130 V - maximum continuous DC or peak AC voltage before conduction |
| Breakdown Voltage (V(BR)) | 144–159 V @ I(BR) - ensures reliable avalanche initiation within defined tolerance |
| Max Clamping Voltage (VC) | 209 V @ 1000 A - limits downstream circuit voltage during worst-case surge |
| Junction-to-Case Thermal Resistance | 0.7 °C/W - enables efficient heat transfer to PCB copper or external heatsink |
| Steady-State Power Dissipation | 71 W @ TC = 100°C - supports limited continuous dissipation when thermally managed |
| Surge Current Rating (IPP) | 1000 A @ 10/1000 μs - validated surge current capacity per IEC 61000-4-5 |
Pinout & Package
Package: Surface-mount PLAD (Power Low-Profile Avalanche Diode) with metal base cathode termination. Dimensions: 12.32 × 10.54 × 5.33 mm (L × W × H); weight ≈ 1 g. Cathode is the metal base (bottom side); anode is top-side metallization.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top-side metallization) | Positive surge current entry point | Connected to protected line; conducts surge current toward cathode during overvoltage |
| Cathode (metal base) | Reference/ground return path | Must be soldered to large copper pour or heatsink for thermal and electrical performance |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMT package with metal base | Enables direct thermal coupling to PCB copper, reducing RθJA to 50 °C/W on FR4 |
| RTCA DO-160F Waveform 4 Level 5 compliance | Withstands 6.4/69 μs pin-injection transients up to 130 V VWM devices |
| IEC 61000-4-5 secondary lightning protection | Validated at Class 1–5 (42 Ω), Class 1–4 (12 Ω), and Class 2–3 (2 Ω) source impedances |
| Moisture sensitivity level 1 | No dry-pack or baking required prior to reflow per IPC/JEDEC J-STD-020B |
| AEC-Q101 qualified | Qualified for automotive-grade reliability including HTGB, TCT, and surge testing |
Applications
| Aircraft Avionics Power Input | Automotive Load Dump Protection |
|---|---|
Use Scenario: Protecting 28 V DC avionics bus inputs against DO-160F Section 22 lightning-induced transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground, clamping surges within 100 ps. Use Value: Enables compliance with RTCA DO-160F Waveform 4 Level 5 (6.4/69 μs) and multi-stroke lightning standards without derating. |
Use Scenario: Safeguarding engine control unit (ECU) power supply during alternator load dump events. IC Role / Device Role / Timing Role: Primary surge clamp on battery feed line, absorbing >1000 A transients with <209 V clamping. Use Value: Prevents ECU reset or latch-up by limiting rail voltage excursion below 209 V during 12 V system load dump. |
| Industrial 48 V DC Power Distribution | Railway Signaling Interface Protection |
Use Scenario: Securing 48 V telecom or industrial PLC power inputs against induced lightning surges. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT), providing fast clamping response. Use Value: Delivers 18 kW pulse power handling while maintaining 130 V standoff for compatibility with 48 V nominal systems. |
Use Scenario: Shielding track-side signaling electronics from EFT and surge coupling via long cable runs. IC Role / Device Role / Timing Role: Bidirectional-capable variant (MPLAD18KP130CA) used for differential signal line protection. Use Value: Meets IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity requirements up to Class 4 with 12 Ω source impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ130A | Lower PPP rating (400 W), smaller SMA package, RθJC ≈ 40 °C/W, VWM = 130 V, VC = 214 V @ 11.4 A | Not suitable for DO-160F Level 5 or IEC 61000-4-5 Class 4+; limited to low-energy industrial interfaces | Select only for cost-sensitive, low-surge environments where 18 kW capability is unnecessary |
| Vishay SM8S130A | 8 kW PPP rating, DO-218AB package, VWM = 130 V, VC = 219 V @ 32.1 A, RθJC ≈ 1.5 °C/W | Meets AEC-Q101 and ISO 7637-2, but not validated for DO-160F Waveform 4 or multi-stroke lightning | Acceptable for automotive load dump where full DO-160F compliance is not required |
Compared with SMAJ130A and SM8S130A, the MPLAD18KP130A provides 22.5× and 2.25× higher peak pulse power respectively, enabling certified lightning protection in aerospace and high-reliability industrial systems where lower-rated alternatives would fail under standardized surge waveforms.
Availability
MPLAD18KP130A is available at Aetrix Electronics and suitable for aircraft avionics, automotive ECU power protection, and industrial 48 V DC distribution systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MPLAD18KP130A 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, mixed-signal, and power semiconductors for aerospace, defense, and industrial markets.
The MPLAD18KP130A belongs to the PLAD family of high-power surface-mount TVS diodes engineered specifically for certified lightning and load dump protection in safety-critical platforms.
FAQ
What is the clamping voltage of the MPLAD18KP130A at its rated peak pulse current?
The MPLAD18KP130A has a maximum clamping voltage (VC) of 209 V at 1000 A peak pulse current under 10/1000 μs waveform conditions. This value is measured per standard test methods and guarantees that downstream circuitry remains below this voltage threshold during surge events, preserving system integrity in applications such as aircraft avionics and automotive ECUs where voltage excursions must be tightly bounded.
Is the MPLAD18KP130A compliant with RTCA DO-160F Section 22 lightning testing?
Yes, the MPLAD18KP130A is explicitly validated for RTCA DO-160F Waveform 4 (6.4/69 μs) Level 5 pin injection protection and meets multi-stroke lightning requirements per Section 22. Its 18,000 W pulse power rating, low clamping voltage, and thermal design enable repeated surge handling without degradation-critical for certified aircraft systems where DO-160F compliance is mandatory.
How does the thermal performance of the MPLAD18KP130A compare to standard SMT TVS diodes?
The MPLAD18KP130A achieves a junction-to-case thermal resistance (RθJC) of just 0.7 °C/W due to its metal-base PLAD package, far superior to typical SMC or DO-214AB packages (RθJC > 3 °C/W). This allows effective heat transfer to PCB copper or external heatsinks, enabling sustained operation under high-duty-cycle surges and supporting derated power handling up to 71 W at TC = 100°C.
Can the MPLAD18KP130A be used in bidirectional configurations?
No-the MPLAD18KP130A is unidirectional. For bidirectional operation, the designated variant is MPLAD18KP130CA, which adds symmetrical clamping for AC or differential signal lines. Using the unidirectional MPLAD18KP130A in reverse-biased AC applications risks catastrophic failure; always select the CA suffix version for bidirectional surge paths.
What packaging options are available for the MPLAD18KP130A?
The MPLAD18KP130A is supplied in bulk or tape-and-reel format. Tape-and-reel requires adding the "TR" suffix (e.g., MPLAD18KP130ATR) and conforms to EIA-481-B standards. RoHS-compliant versions carry the "e3" marking; non-RoHS variants are marked without the e3 designation. Pad layout and footprint dimensions are documented in RF01215 Rev B, page 7.
MPLAD18KP130A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- Nonstandard SMD
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 130V
- Voltage - Breakdown (Min):
- 144V
- Voltage - Clamping (Max) @ Ipp:
- 209V
- Current - Peak Pulse (10/1000µs):
- 87A
- Power - Peak Pulse:
- 18000W (18kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PLAD
MPLAD18KP130A FAQ
1.How can I place an order for MPLAD18KP130A through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD18KP130A 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 MPLAD18KP130A reliable?
The price and inventory of MPLAD18KP130A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD18KP130A is usually 5 days.
3.What payment methods are accepted for MPLAD18KP130A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD18KP130A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD18KP130A?
MPLAD18KP130A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD18KP130A 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 MPLAD18KP130A?
For technical support, including MPLAD18KP130A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD18KP130A requirements.
6.How does Aetrix verify that MPLAD18KP130A is sourced from the original manufacturer or authorized distributors?
All MPLAD18KP130A 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 MPLAD18KP130A meets industry standards.
7.What is the process for return or replacement of MPLAD18KP130A?
All MPLAD18KP130A units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD18KP130A, 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 MPLAD18KP130A part is unused and in its original packaging.
Return procedure for MPLAD18KP130A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD18KP130A Tags
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