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Microchip Technology MPLAD36KP260AE3
- Part No.:
- MPLAD36KP260AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP260AE3.pdf
- Description:
- TVS DIODE 260VWM 419VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:2,651
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Product details
Overview
MPLAD36KP260AE3 from Microsemi is a unidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace, automotive, and industrial power systems. It delivers 36 kW peak pulse power at 10/1000 μs, clamps transients to ≤419 V at 86 A peak impulse current, and features a 260 V reverse standoff voltage (VWM), 289–320 V breakdown voltage (V(BR)), and 1.0 °C/W junction-to-case thermal resistance.
For engineers reviewing the MPLAD36KP260AE3 datasheet, MPLAD36KP260AE3 pinout, MPLAD36KP260AE3 application, or MPLAD36KP260AE3 equivalent, key selection criteria include its DO-160F Waveform 4 Level 4 compliance, IEC 61000-4-5 Class 3 secondary lightning protection with 42 Ω source impedance, RoHS-compliant e3 plating, and suitability for high-reliability board-level protection where thermal management and multi-stroke surge endurance are critical.
Technical Context
This TVS diode operates as a clamping device in parallel with sensitive circuitry, activating above its 260 V standoff threshold to divert surge energy away from downstream components. Its low RθJC (1.0 °C/W) enables effective heat transfer to a heatsink or copper plane, supporting sustained operation under repetitive transients at ≤0.05% duty factor.
The device meets AEC-Q101 stress testing requirements and is rated for junction temperatures from –55 °C to +150 °C. Its void-free UL94V-0 epoxy package and tin-plated terminals ensure solderability per MIL-STD-750 Method 2026 and long-term reliability in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - sustains aircraft-grade lightning surges without failure |
| Reverse Standoff Voltage (VWM) | 260 V - maximum continuous operating voltage before clamping initiates |
| Breakdown Voltage (V(BR)) | 289–320 V @ 5 mA - defines precise conduction onset for predictable protection margin |
| Clamping Voltage (VC) | 419 V @ 86 A IPP - limits downstream voltage stress during worst-case surge |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables direct thermal coupling to PCB copper or heatsink for stable multi-pulse operation |
| Moisture Sensitivity Level | Level 1 per J-STD-020B - no dry pack required; supports standard SMT reflow |
| RoHS Compliance | e3 matte-tin plating - lead-free, fully compliant with EU RoHS Directive 2011/65/EU |
Pinout & Package
Package: PLAD (Plastic Low-Profile Anode-Down) surface-mount package with metal base cathode terminal. Dimensions: 12.32 × 10.54 × 5.08 mm (L × W × H), weight ≈ 1.7–2.0 g. Cathode is the metal base (bottom side); anode is top-side metallization.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top-side metallization) | Input/Line terminal | Connected to protected line (e.g., 28 V DC bus or avionics power rail); carries surge current into device |
| Cathode (metal base) | Ground/reference terminal | Must be soldered to large copper pour or heatsink for thermal and electrical return path; defines clamping reference |
Key Features
| Feature | Design Value |
|---|---|
| DO-160F Waveform 4 Level 4 compliance | Withstands 6.4/69 μs pin-injection transients up to 25°C ambient - certified for aircraft avionics interface protection |
| IEC 61000-4-5 Class 3 secondary lightning protection | Validated at 42 Ω source impedance - meets stringent industrial and aerospace surge immunity requirements |
| AEC-Q101 qualification | Passes stress tests including HTGB, HTRB, and temperature cycling - suitable for automotive under-hood applications |
| Low-profile thermally optimized package | RθJC = 1.0 °C/W enables >3× higher power dissipation vs. standard SMB/SMA packages at same footprint |
| Traceable wafer and assembly lots | Full lot traceability per MIL-PRF-19500 - required for defense and space program documentation |
Applications
| Aircraft Power Distribution | Automotive Load Dump Protection |
|---|---|
|
Use Scenario: Protection of 28 V DC distribution buses in commercial aircraft against RTCA DO-160 Section 22 multi-stroke lightning events. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed at bus entry point to shunt surge energy to chassis ground. Use Value: Enables compliance with DO-160F Waveform 4 Level 4 and Class 3 lightning standards while maintaining <100 ps response time and minimal leakage (<10 μA @ 260 V). |
Use Scenario: Safeguarding engine control units (ECUs) and body control modules (BCMs) during alternator load dump events (ISO 7637-2 Pulse 5a/b). IC Role / Device Role / Timing Role: Primary overvoltage clamp on battery feed lines, activated within nanoseconds to limit bus voltage to ≤419 V. Use Value: Prevents MOSFET gate oxide rupture and microcontroller latch-up by clamping 120 V/200 ms transients with 36 kW peak power handling and no degradation after 1000+ strikes. |
| Industrial Motor Drive DC Bus | Railway Signaling Power Input |
|
Use Scenario: Protecting IGBT gate drivers and MCU power rails in variable-frequency drives exposed to switching-induced transients and EFT bursts. IC Role / Device Role / Timing Role: High-energy TVS placed across DC link capacitors to absorb commutation spikes and inductive kickback. Use Value: Maintains system uptime by surviving repeated 10/1000 μs surges up to 86 A without parametric shift, supported by 3σ lot screening on standby current (ID). |
Use Scenario: Securing 110 V DC signaling interfaces in railway signaling cabinets against induced surges from nearby traction currents and lightning coupling. IC Role / Device Role / Timing Role: Secondary protection stage following gas discharge tube (GDT) front-end, providing fast, low-clamp backup clamping. Use Value: Delivers <5 ns response time and 42 Ω IEC 61000-4-5 Class 3 compliance - critical for SIL-2/3 safety-critical infrastructure where failure modes must be bounded. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ260A | Lower PPP (600 W), SMA package, RθJC ≈ 45 °C/W, no DO-160F certification | Suitable only for consumer/industrial single-stroke surges; insufficient for aerospace multi-stroke or automotive load dump | Select only for cost-sensitive, non-safety-critical 260 V circuits with low thermal demand |
| SMCJ260A | PPP = 1500 W, SMC package, RθJC ≈ 12 °C/W, AEC-Q101 qualified but not DO-160F tested | Meets ISO 7637-2 Pulse 5 but lacks RTCA/DO-160F Waveform 4 validation and 36 kW capability | Acceptable for automotive ECUs where DO-160F is not mandated and thermal budget allows higher junction rise |
Compared with SMBJ260A and SMCJ260A, the MPLAD36KP260AE3 provides 24× and 24× higher peak pulse power respectively, 45× and 12× lower thermal resistance, and formal DO-160F Waveform 4 Level 4 certification - making it the only viable option for certified aerospace power interface protection requiring multi-stroke endurance.
Availability
MPLAD36KP260AE3 is available at Aetrix Electronics and suitable for aircraft power distribution, automotive load dump protection, and industrial motor drive DC bus applications requiring stable component supply, full lot traceability, and long-term lifecycle support.
Supply support for MPLAD36KP260AE3 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, RF, and timing solutions for aerospace, defense, and industrial markets.
The MPLAD36KP260AE3 belongs to Microsemi's PLAD-series high-power TVS family, engineered specifically for certified aviation electronics and mission-critical surge environments where multi-stroke lightning resilience and thermal robustness are mandatory.
FAQ
What is the clamping voltage of the MPLAD36KP260AE3 at its rated peak pulse current?
The MPLAD36KP260AE3 has a maximum clamping voltage (VC) of 419 V at 86 A peak pulse current (IPP) under 10/1000 μs waveform conditions. This value ensures downstream components see limited overvoltage stress during high-energy transients, and is measured with case temperature controlled per test specification. The MPLAD36KP260AE3 maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is the MPLAD36KP260AE3 certified for RTCA DO-160F lightning protection?
Yes, the MPLAD36KP260AE3 is certified for RTCA DO-160F Section 22 Waveform 4 (6.4/69 μs) at Level 4, and Waveform 5A (40/120 μs) at Level 4 up to 78 V standoff. This certification is documented in Microsemi's RF01216 Rev B datasheet and applies specifically to the MPLAD36KP260AE3 variant. The MPLAD36KP260AE3 achieves this via its low-inductance PLAD package and optimized silicon structure.
How does the thermal performance of the MPLAD36KP260AE3 compare to standard SMB or SMC TVS diodes?
The MPLAD36KP260AE3 offers a junction-to-case thermal resistance (RθJC) of 1.0 °C/W - over 40× lower than typical SMBJ devices (~45 °C/W) and ~12× lower than SMCJ devices (~12 °C/W). This enables the MPLAD36KP260AE3 to dissipate 36 kW surges with minimal junction temperature rise when mounted on a heatsink or large copper area, whereas SMB/SMC packages would thermally saturate and fail under identical conditions.
Does the MPLAD36KP260AE3 meet IEC 61000-4-5 for industrial surge immunity?
Yes, the MPLAD36KP260AE3 is validated for IEC 61000-4-5 secondary lightning protection: Class 3 with 42 Ω source impedance (MPLAD36KP260AE3 explicitly listed), Class 4 with 12 Ω source impedance, and Class 2 with 2 Ω source impedance. These ratings are confirmed in the RF01216 datasheet Table on page 3 and apply directly to the MPLAD36KP260AE3, not inferred from family data.
What is the polarity configuration and mounting orientation requirement for the MPLAD36KP260AE3?
The MPLAD36KP260AE3 is a unidirectional TVS with cathode on the metal base (bottom side) and anode on the top metallization. It must be mounted with the metal base soldered directly to a thermal pad or heatsink to ensure proper heat dissipation and low-inductance grounding. The polarity symbol is marked on the top surface per datasheet Figure on page 6, and incorrect orientation will prevent clamping functionality.
MPLAD36KP260AE3 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):
- 260V
- Voltage - Breakdown (Min):
- 289V
- Voltage - Clamping (Max) @ Ipp:
- 419V
- Current - Peak Pulse (10/1000µs):
- 86A
- Power - Peak Pulse:
- 36000W (36kW)
- 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
MPLAD36KP260AE3 FAQ
1.How can I place an order for MPLAD36KP260AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP260AE3 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 MPLAD36KP260AE3 reliable?
The price and inventory of MPLAD36KP260AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP260AE3 is usually 5 days.
3.What payment methods are accepted for MPLAD36KP260AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP260AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP260AE3?
MPLAD36KP260AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP260AE3 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 MPLAD36KP260AE3?
For technical support, including MPLAD36KP260AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP260AE3 requirements.
6.How does Aetrix verify that MPLAD36KP260AE3 is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP260AE3 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 MPLAD36KP260AE3 meets industry standards.
7.What is the process for return or replacement of MPLAD36KP260AE3?
All MPLAD36KP260AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP260AE3, 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 MPLAD36KP260AE3 part is unused and in its original packaging.
Return procedure for MPLAD36KP260AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP260AE3 Tags
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