My Inquiry
My Account
Microchip Technology MAPLAD36KP14AE3
- Part No.:
- MAPLAD36KP14AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP14AE3.pdf
- Description:
- TVS DIODE 14VWM 24VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:6,617
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAPLAD36KP14AE3 from Microsemi is a unidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace and automotive systems. It delivers 36,000 W peak pulse power at 10/1000 μs, clamps transients to ≤24.0 V at 3000 A, and features a 14 V reverse standoff voltage (VWM), 15.6–17.2 V breakdown voltage (V(BR)), and 1.0 °C/W junction-to-case thermal resistance - enabling robust secondary lightning protection per RTCA DO-160 Section 22 and IEC 61000-4-5.
For engineers reviewing the MAPLAD36KP14AE3 datasheet, MAPLAD36KP14AE3 pinout, MAPLAD36KP14AE3 application, or MAPLAD36KP14AE3 equivalent, key selection criteria include its 36 kW surge rating, low-profile PLAD package with metal-base cathode, RoHS-compliant e3 plating, and verified compliance with AEC-Q101, MIL-PRF-19500 screening options, and RTCA/DO-160F Waveform 4 & 5A pin-injection levels.
Technical Context
The MAPLAD36KP14AE3 employs an avalanche diode structure optimized for fast response (<100 ps clamping delay) and high-energy dissipation in compact surface-mount form. Its metal-base thermal path enables direct heatsinking, supporting sustained operation under multi-stroke lightning events with ≤0.05% duty factor.
It operates as a unidirectional clamp with cathode on the metal base (bottom side), requiring PCB pad layout per Microsemi's recommended footprint (0.470" × 0.230"). Standby current is ≤5 μA at 14 V, and temperature coefficient of V(BR) is +10 mV/°C - ensuring stable clamping across -55°C to +150°C junction range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 36,000 W @ 10/1000 μs - sustains aircraft lightning strike energy without failure |
| Reverse Standoff Voltage (VWM) | 14 V - matches 12 V automotive and avionics bus systems with margin |
| Breakdown Voltage (V(BR)) | 15.6–17.2 V @ 5 mA - defines precise conduction onset for predictable clamping |
| Max Clamping Voltage (VC) | 24.0 V @ 3000 A - limits downstream IC stress during worst-case surge |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables efficient heat transfer to PCB copper or external heatsink |
| Standby Current (ID) | ≤5 μA @ 14 V - negligible leakage in always-on power rails |
| Clamping Response Time | <100 ps - reacts before sensitive logic or analog circuitry is damaged |
Pinout & Package
MAPLAD36KP14AE3 uses the PLAD surface-mount package: void-free UL94V-0 epoxy body (12.32 × 10.54 × 5.08 mm), matte-tin (e3) RoHS-compliant plating, and metal base serving as cathode terminal. Mounting requires thermal pad per datasheet layout (A = 0.470", B = 0.230").
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Metal Base (Bottom) | Cathode | Primary heat path and negative return - must be soldered to large copper pour or heatsink |
| Top Surface Pad | Anode | Positive input connection - routed to protected line (e.g., 12 V supply rail) |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW Surge Rating | Meets RTCA DO-160 Section 22 multi-stroke lightning requirements without derating |
| Metal-Base Thermal Path | 1.0 °C/W RθJC enables >70 W steady-state dissipation when mounted on 100 cm² copper |
| AEC-Q101 Qualified | Validated for automotive under-hood environments including temperature cycling and humidity exposure |
| e3 RoHS Compliance | Matte-tin plating ensures reliable solderability and eliminates lead-based assembly constraints |
| RTCA/DO-160F Waveform 4 & 5A Support | Level 4 protection up to 14–400 V variants - certified for avionics pin-injection immunity |
Applications
| Avionics Power Distribution | Automotive Load Dump Protection |
|---|---|
Use Scenario: Protecting flight control unit power inputs against induced lightning surges on aircraft wiring harnesses. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed at main 28 V DC bus entry point, shunting surge energy to chassis ground. Use Value: Limits transient voltage to ≤24.0 V during DO-160 Section 22 Waveform 4 (6.4/69 μs), preventing latch-up in downstream PMICs and FPGAs. | Use Scenario: Safeguarding infotainment ECUs during alternator load dump events (ISO 7637-2 Pulse 5a). IC Role / Device Role / Timing Role: Primary surge suppression device on battery feed line, operating in parallel with upstream fuse and downstream LC filter. Use Value: Clamps 12 V system transients to 24.0 V within <100 ps, maintaining microcontroller reset integrity and avoiding EEPROM corruption. |
| Industrial Motor Drive DC Bus | Railway Signaling Interface |
Use Scenario: Shielding PLC I/O modules connected to long motor cable runs subject to switching-induced transients. IC Role / Device Role / Timing Role: Bidirectional-capable variant used as unidirectional clamp on 24 V DC control bus, referenced to isolated ground plane. Use Value: Withstands repeated 36 kW surges at 0.05% duty cycle, eliminating field failures from IGBT commutation noise coupling. | Use Scenario: Protecting Ethernet PHY interfaces in wayside signaling equipment exposed to track-side EMI and lightning coupling. IC Role / Device Role / Timing Role: TVS array input stage component, placed before common-mode choke and transformer, referenced to signal ground. Use Value: Meets IEC 61000-4-5 Class 4 (42 Ω source) with clamping ≤24.0 V, preserving 100BASE-TX signal integrity during surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ14A | 600 W rating, SMC package, 23.2 V max clamping @ 22.5 A - 60× lower peak power | Only suitable for low-energy ESD/EFT; cannot meet DO-160 lightning or ISO 7637 load dump | Select MAPLAD36KP14AE3 when surge energy exceeds 100 J or peak current exceeds 1 kA. |
| SMCJ14A | 1500 W rating, same SMC package, 23.2 V clamping @ 64.5 A - 24× lower peak power than MAPLAD36KP14AE3 | Valid for basic automotive transients but fails RTCA DO-160 Section 22 multi-stroke testing | Choose MAPLAD36KP14AE3 for aerospace, rail, or industrial systems requiring certified 36 kW surge handling. |
Compared with SMBJ14A and SMCJ14A, MAPLAD36KP14AE3 provides 60× and 24× higher peak pulse power respectively, enabling single-device compliance with stringent lightning standards where lower-rated TVS diodes require parallel staging or active crowbar circuits.
Availability
MAPLAD36KP14AE3 is available at Aetrix Electronics and suitable for avionics power distribution, automotive load dump protection, and industrial motor drive DC bus applications requiring stable component supply, long-term lifecycle support, and traceable high-reliability sourcing.
Supply support for MAPLAD36KP14AE3 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 semiconductors for aerospace, defense, and industrial markets, with emphasis on radiation-hardened ICs, timing solutions, and ruggedized discrete components.
The MAPLAD36KP14AE3 belongs to Microsemi's PLAD-series high-power TVS family, engineered specifically for certified lightning and load-dump protection in safety-critical platforms where failure is not an option.
FAQ
What is the maximum clamping voltage of MAPLAD36KP14AE3 at rated peak pulse current?
The MAPLAD36KP14AE3 has a maximum clamping voltage (VC) of 24.0 V at 3000 A peak pulse current under 10/1000 μs waveform conditions. This value is guaranteed across the full operating temperature range and ensures downstream circuitry remains below safe voltage thresholds during surge events. The MAPLAD36KP14AE3 achieves this with sub-100 ps response time and low dynamic impedance.
Is MAPLAD36KP14AE3 qualified for automotive applications?
Yes, MAPLAD36KP14AE3 is AEC-Q101 qualified and validated for automotive under-hood environments, including temperature cycling, humidity exposure, and mechanical shock. Its 14 V VWM and 24.0 V clamping align with 12 V battery systems, and it meets ISO 7637-2 Pulse 5a load dump requirements when properly mounted. The MAPLAD36KP14AE3 also supports optional MIL-PRF-19500 upscreening for extended reliability.
How does the PLAD package of MAPLAD36KP14AE3 improve thermal performance?
The PLAD package of MAPLAD36KP14AE3 uses a metal base as the cathode terminal, providing a direct thermal path from junction to PCB copper or external heatsink. With a junction-to-case thermal resistance of only 1.0 °C/W, the MAPLAD36KP14AE3 can dissipate over 70 W continuously when mounted on ≥100 cm² of 2 oz copper - far exceeding standard SMC or SMB packages. This enables reliable multi-stroke operation in high-duty-cycle environments.
Does MAPLAD36KP14AE3 meet RTCA DO-160 lightning protection requirements?
Yes, MAPLAD36KP14AE3 is specifically designed and tested to meet RTCA DO-160 Section 22 multi-stroke lightning standards. It achieves Level 4 pin-injection protection per Waveform 4 (6.4/69 μs) and Waveform 5A (40/120 μs) up to 300 V variants. The MAPLAD36KP14AE3's 36,000 W rating, fast clamping, and metal-base thermal design make it suitable for primary and secondary lightning protection in avionics power and signal lines.
What is the polarity configuration and mounting orientation for MAPLAD36KP14AE3?
MAPLAD36KP14AE3 is a unidirectional TVS with cathode on the metal base (bottom surface) and anode on the top surface pad. Correct orientation requires the metal base to be soldered to a grounded or heatsinked copper area, while the top pad connects to the protected line. The MAPLAD36KP14AE3 must be mounted using the recommended pad layout (0.470" × 0.230") to ensure thermal and electrical performance per RF01216 Rev B.
MAPLAD36KP14AE3 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):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 24V
- Current - Peak Pulse (10/1000µs):
- 1500A (1.5kA)
- 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
MAPLAD36KP14AE3 FAQ
1.How can I place an order for MAPLAD36KP14AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP14AE3 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 MAPLAD36KP14AE3 reliable?
The price and inventory of MAPLAD36KP14AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP14AE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP14AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP14AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP14AE3?
MAPLAD36KP14AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP14AE3 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 MAPLAD36KP14AE3?
For technical support, including MAPLAD36KP14AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP14AE3 requirements.
6.How does Aetrix verify that MAPLAD36KP14AE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP14AE3 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 MAPLAD36KP14AE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP14AE3?
All MAPLAD36KP14AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP14AE3, 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 MAPLAD36KP14AE3 part is unused and in its original packaging.
Return procedure for MAPLAD36KP14AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP14AE3 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…
