My Inquiry
My Account
Microchip Technology MPLAD36KP17AE3
- Part No.:
- MPLAD36KP17AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP17AE3.pdf
- Description:
- TVS DIODE 17VWM 28.8VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:8,815
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MPLAD36KP17AE3 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, features a 17 V reverse standoff voltage (VWM), clamps to ≤28.8 V at 1250 A peak pulse current, and operates across –55°C to +150°C junction temperature.
For engineers reviewing the MPLAD36KP17AE3 datasheet, MPLAD36KP17AE3 pinout, MPLAD36KP17AE3 application, or MPLAD36KP17AE3 equivalent, key selection criteria include its DO-160 Section 22 multi-stroke lightning compliance, IEC 61000-4-5 Class 4/5 secondary lightning capability with 42 Ω source impedance, and RoHS-compliant e3 matte-tin termination for lead-free assembly.
Technical Context
This TVS diode employs an avalanche breakdown mechanism to divert high-energy transients away from sensitive downstream circuitry. Its low thermal resistance (RθJC = 1.0 °C/W) enables rapid heat dissipation into the PCB copper pad or heatsink, supporting repeated surge events under ≤0.05% duty cycle per MIL-STD-750 test conditions.
The device is optimized for unidirectional DC bus protection where polarity-aware clamping is required - such as 12 V/24 V automotive ECUs, avionics power inputs, and industrial PLC power rails. Its cathode is located on the metal base (package bottom), requiring correct PCB pad layout per Microsemi's recommended footprint to ensure mechanical stability and thermal performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - Maximum continuous operating voltage before clamping begins; matches nominal 12 V system rails with margin for ripple and transients. |
| V(BR) min/max | 18.9–20.9 V - Breakdown occurs within this range at 5 mA; ensures reliable turn-on above VWM while avoiding false triggering. |
| VC @ IPP | 28.8 V max at 1250 A - Clamping voltage during 10/1000 μs surge; limits stress on protected ICs to safe levels per IEC 61000-4-5. |
| PPP | 36,000 W - Peak pulse power handling at 10/1000 μs waveform; validates suitability for RTCA DO-160F Waveform 4 Level 5 (6.4/69 μs) and Waveform 5A Level 4. |
| RθJC | 1.0 °C/W - Junction-to-case thermal resistance; enables direct thermal coupling to heatsink or large copper pour for sustained multi-pulse operation. |
| ID @ VWM | 150 μA max - Standby leakage at rated standoff voltage; negligible power loss in always-on protection circuits. |
| αV(BR) | 14 mV/°C - Temperature coefficient of breakdown voltage; allows predictable derating over –55°C to +150°C operating range. |
Pinout & Package
Package: PLAD - Low-profile, void-free transfer-molded thermosetting epoxy case (UL94V-0), metal base cathode, tin-lead or RoHS-compliant annealed matte-tin plating (e3 suffix denotes RoHS). Dimensions: 12.32 × 10.54 × 5.08 mm (L × W × H), weight ≈ 1.7–2.0 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top surface) | Transient current entry point | Connected to protected line (e.g., battery feed); conducts surge current toward cathode during overvoltage event. |
| Cathode (metal base) | Transient current return path | Must be soldered to large copper pad or heatsink; serves as primary thermal conduction path and low-inductance ground reference. |
Key Features
| Feature | Design Value |
|---|---|
| DO-160F Section 22 compliance | Validated for multi-stroke lightning testing up to Level 5, enabling use in certified aircraft power distribution units without additional external filtering. |
| IEC 61000-4-5 Class 4/5 support | Meets secondary lightning immunity with 42 Ω source impedance up to 300 V VWM variants - MPLAD36KP17AE3 covers 17 V systems requiring robust ESD/EFT/RFI suppression. |
| Low RθJC (1.0 °C/W) | Enables >1000 surge cycles at full 36 kW rating when mounted per recommended pad layout, critical for mission-critical avionics reset/recovery scenarios. |
| e3 RoHS-compliant termination | Matte-tin plating meets J-STD-020B Level 1 moisture sensitivity; eliminates dry-pack requirement and supports lead-free reflow profiles up to 260°C. |
Applications
| Aerospace Power Input Protection | Automotive Load Dump Suppression |
|---|---|
Use Scenario: 28 V DC power input to flight control computer subjected to DO-160F Section 22 lightning-induced surges. IC Role / Device Role / Timing Role: Primary transient shunt device placed at board-level power entry point to clamp fast-rising transients before they reach DC/DC converters and microcontrollers. Use Value: Limits clamped voltage to ≤28.8 V during 1250 A surges, preserving 3.3 V/5 V logic supply integrity and preventing latch-up in downstream ASICs. | Use Scenario: 12 V battery rail in engine control unit exposed to ISO 7637-2 Pulse 5a (load dump) events up to 60 V/100 ms. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery and main regulator input to absorb energy and hold rail voltage below MOSFET VDS(max). Use Value: Withstands 36 kW pulses without degradation, enabling single-device protection instead of stacked Zener + capacitor solutions - reducing BOM count and PCB area. |
| Industrial PLC Power Rail Guard | Renewable Energy Inverter DC Link Clamp |
Use Scenario: 24 V auxiliary power supply in programmable logic controller subject to switching transients from relay coils and motor drives. IC Role / Device Role / Timing Role: Fast-response clamping device on 24 V backplane rail to suppress inductive kickback and induced RFI per IEC 61000-4-4. Use Value: Sub-100 ps response time ensures clamping initiates before sensitive analog front-end ICs experience overvoltage - maintaining ADC accuracy and sensor signal fidelity. | Use Scenario: DC link between PV array and inverter stage exposed to grid fault-induced voltage spikes and lightning coupling. IC Role / Device Role / Timing Role: High-energy TVS mounted directly across DC bus capacitors to limit overvoltage during IEC 61000-4-5 combination wave tests. Use Value: 36 kW rating accommodates long-duration surges (up to 1000 μs) without thermal runaway, extending capacitor lifetime and eliminating need for active crowbar circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ17A | Lower PPP (600 W), smaller SMB package, higher RθJA (50 °C/W), no DO-160F validation. | Suitable only for consumer-grade 12 V systems with infrequent, low-energy transients - not qualified for aerospace or automotive safety-critical use. | Select SMBJ17A only for cost-sensitive, non-certified designs where surge repetition rate and energy level are strictly limited. |
| SMCJ17A | PPP = 1500 W, SMC package, RθJC ≈ 2.5 °C/W, AEC-Q101 qualified but not DO-160F tested. | Valid for automotive ECU protection per ISO 7637-2, but lacks multi-stroke lightning endurance and RTCA compliance needed for flight hardware. | Choose SMCJ17A for ground vehicle ECUs requiring AEC-Q101 qualification and moderate surge immunity - not for airborne systems. |
Compared with SMBJ17A and SMCJ17A, the MPLAD36KP17AE3 provides 60× higher peak pulse power, certified DO-160F multi-stroke lightning performance, and a thermally optimized metal-base package - making it the only option for high-reliability aerospace and heavy-duty industrial applications demanding repeated 36 kW surge handling.
Availability
MPLAD36KP17AE3 is available at Aetrix Electronics and suitable for aerospace power conditioning, automotive load dump mitigation, and industrial PLC protection requiring stable component supply across extended production lifecycles.
Supply support for MPLAD36KP17AE3 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 semiconductor solutions for aerospace, defense, communications, and industrial markets, with emphasis on radiation-hardened ICs, timing devices, and power protection components.
The MPLAD36KP17AE3 belongs to Microsemi's high-power PLAD-series TVS family, engineered specifically for DO-160F and IEC 61000-4-5 compliance in safety-critical platforms where single-event surge failure is unacceptable.
FAQ
What is the maximum clamping voltage of the MPLAD36KP17AE3 at its rated peak pulse current?
The MPLAD36KP17AE3 has a maximum clamping voltage (VC) of 28.8 V at 1250 A peak pulse current under 10/1000 μs waveform conditions. This value is measured per Figure 3 in the RF01216 datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Does the MPLAD36KP17AE3 meet DO-160F Section 22 lightning standards?
Yes, the MPLAD36KP17AE3 is validated for RTCA DO-160F Section 22 multi-stroke lightning testing up to Level 5 (Waveform 4: 6.4/69 μs, Waveform 5A: 40/120 μs). Its 36 kW rating and low thermal resistance enable repeatable performance across multiple strokes without parameter shift - a requirement for certified aircraft power system components.
How is polarity identified on the MPLAD36KP17AE3 package?
The MPLAD36KP17AE3 is unidirectional, with the cathode located on the metal base (bottom surface) of the PLAD package. The top surface is the anode. Polarity marking is not printed on the body; correct orientation must be ensured via PCB pad layout - the metal base must be soldered to a designated cathode copper pour connected to system ground or return path.
What is the thermal resistance from junction to case (RθJC) for the MPLAD36KP17AE3?
The MPLAD36KP17AE3 has a junction-to-case thermal resistance (RθJC) of 1.0 °C/W, as specified in the "MAXIMUM RATINGS" table of RF01216 Rev B. This low value enables efficient heat transfer from the silicon die to the metal base, allowing sustained operation under high-duty-cycle surge conditions when mounted per Microsemi's recommended pad layout.
Is the MPLAD36KP17AE3 RoHS compliant and what does the 'e3' suffix indicate?
Yes, the MPLAD36KP17AE3 is RoHS compliant. The 'e3' suffix explicitly denotes RoHS-compliant annealed matte-tin plating per J-STD-020B Level 1 moisture sensitivity - meaning no dry-pack requirement and compatibility with standard lead-free reflow profiles up to 260°C for 10 seconds, verified per MIL-STD-750 Method 2026.
MPLAD36KP17AE3 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):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 28.8V
- Current - Peak Pulse (10/1000µs):
- 1250A (1.25kA)
- 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
MPLAD36KP17AE3 FAQ
1.How can I place an order for MPLAD36KP17AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP17AE3 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 MPLAD36KP17AE3 reliable?
The price and inventory of MPLAD36KP17AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP17AE3 is usually 5 days.
3.What payment methods are accepted for MPLAD36KP17AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP17AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP17AE3?
MPLAD36KP17AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP17AE3 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 MPLAD36KP17AE3?
For technical support, including MPLAD36KP17AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP17AE3 requirements.
6.How does Aetrix verify that MPLAD36KP17AE3 is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP17AE3 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 MPLAD36KP17AE3 meets industry standards.
7.What is the process for return or replacement of MPLAD36KP17AE3?
All MPLAD36KP17AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP17AE3, 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 MPLAD36KP17AE3 part is unused and in its original packaging.
Return procedure for MPLAD36KP17AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP17AE3 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
