My Inquiry
My Account
Microchip Technology MAPLAD36KP15CA
- Part No.:
- MAPLAD36KP15CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP15CA.pdf
- Description:
- TVS DIODE 15VWM 25.8VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:5,390
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAPLAD36KP15CA from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace and automotive systems. It delivers 36 kW peak pulse power at 10/1000 μs, clamps at ≤25.8 V (max) under 1396 A peak impulse current, and features a 15 V reverse standoff voltage (VWM), meeting RTCA DO-160 Section 22 multi-stroke lightning requirements.
For engineers reviewing the MAPLAD36KP15CA datasheet, MAPLAD36KP15CA pinout, MAPLAD36KP15CA application, or MAPLAD36KP15CA equivalent, this device is selected for secondary lightning protection per IEC 61000-4-5 (42 Ω, 12 Ω, 2 Ω source impedances), pin-injection immunity per RTCA/DO-160F Waveforms 4 & 5A, and ESD/EFT compliance to IEC 61000-4-2/4-4.
Technical Context
This TVS operates as a voltage-clamped crowbar device triggered by avalanche breakdown, with bidirectional symmetry enabling protection against both polarities of transients. Its low RθJC of 1.0 °C/W and metal-base thermal path support high-repetition surges on FR4 PCBs with recommended pad layout.
It meets AEC-Q101 stress testing and supports MIL-PRF-19500 upscreening options. Clamping response time is <5 ns, and standby leakage ID is ≤750 μA at 15 V - critical for low-power system monitoring circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - sustains aircraft lightning-induced surges without failure |
| Reverse Standoff Voltage (VWM) | 15 V - sets maximum continuous operating voltage before clamping activation |
| Breakdown Voltage (V(BR)) | 15.6–17.2 V @ 5 mA - defines precise avalanche onset threshold for predictable triggering |
| Max Clamping Voltage (VC) | 25.8 V @ 1396 A - limits downstream circuit voltage during worst-case surge |
| Peak Pulse Current (IPP) | 1396 A - quantifies maximum transient energy absorption capability |
| Thermal Resistance (RθJC) | 1.0 °C/W - enables efficient heat transfer to heatsink or copper plane for duty-cycle reliability |
| Standby Leakage (ID) | ≤750 μA @ VWM - ensures minimal quiescent loading on 15 V supply rails |
Pinout & Package
MAPLAD36KP15CA uses a thermally enhanced PLAD surface-mount package with void-free UL94V-0 epoxy body and tin-plated terminals. The metal base serves as the common terminal for both anode and cathode paths in bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Top Surface Pads (2) | Anode/Cathode (symmetrical) | Bidirectional conduction path - no polarity marking required; either pad connects to protected line |
| Metal Base (Bottom) | Common Thermal & Electrical Reference | Serves as low-inductance return path and primary heat sink interface; must be soldered to large copper area |
Key Features
| Feature | Design Value |
|---|---|
| RTCA DO-160F Waveform 4 & 5A Compliance | Level 4 protection up to 300 V VWM - validated for avionics pin-injection immunity testing |
| IEC 61000-4-5 Secondary Lightning Protection | Class 1–5 certified with 42 Ω, 12 Ω, and 2 Ω source impedances - covers aircraft, vehicle, and industrial installations |
| AEC-Q101 Qualified | Qualified for automotive underhood environments - ensures reliability at −55°C to +150°C junction temperature |
| Moisture Sensitivity Level 1 | No dry pack or bake-out required before reflow - simplifies SMT assembly and reduces process risk |
| RoHS Compliant (e3) | Lead-free matte-tin plating - meets global environmental regulations without compromising solderability |
Applications
| Aerospace Avionics Power Distribution | Automotive Load Dump Protection |
|---|---|
Use Scenario: Protecting 28 V DC bus lines in flight control computers and sensor interfaces from lightning-induced surges per DO-160 Section 22. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed at board-level input filter stage to limit transient overvoltage before DC/DC converters. Use Value: Enables single-device compliance with multi-stroke lightning standard without external series impedance or timing-critical coordination. |
Use Scenario: Safeguarding infotainment ECUs and ADAS domain controllers during alternator load dump events (ISO 7637-2 Pulse 5a/b). IC Role / Device Role / Timing Role: Primary surge suppression element across battery rail inputs, absorbing >36 kW pulses within nanoseconds. Use Value: Prevents latch-up or gate oxide damage in downstream PMICs and microcontrollers by clamping to ≤25.8 V at 1396 A. |
| Industrial Motor Drive I/O Protection | Railway Signaling Interface Protection |
Use Scenario: Shielding encoder feedback lines and analog sensor inputs in servo drives from switching transients and RFI coupling. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at connector entry point to shunt fast-rising noise (<5 ns response). Use Value: Maintains signal integrity in 100 kHz+ position loops while suppressing EFT bursts per IEC 61000-4-4. |
Use Scenario: Securing 72 V DC trackside signaling interfaces against induced surges from nearby traction currents and lightning ground potential rise. IC Role / Device Role / Timing Role: Secondary protection device downstream of gas discharge tube (GDT), handling residual energy after front-end clamping. Use Value: Provides coordinated 2-stage protection with <25.8 V let-through voltage - below maximum rating of isolated RS-485 transceivers. |
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 SMAJ15CA | 3.0 kW PPP rating, SMA package, RθJA = 50°C/W, IPP = 139 A - 10× lower energy capacity | Only suitable for consumer-grade IEC 61000-4-5 Class 3; cannot meet DO-160 Level 4/5 or automotive load dump | Select when cost-sensitive, low-energy board-level ESD protection is sufficient and aerospace/automotive qualification is not required. |
| Vishay V26MLA0603NH | 26 kW multilayer varistor, 0603 size, 15 V nominal, but unidirectional only and no AEC-Q101 or DO-160 validation | Lacks bidirectionality and formal qualification for aviation or automotive - limited to commercial industrial use | Choose only for space-constrained designs where full 36 kW rating and regulatory compliance are secondary to footprint reduction. |
Compared with SMAJ15CA and V26MLA0603NH, MAPLAD36KP15CA uniquely delivers certified 36 kW surge handling, bidirectional symmetry, AEC-Q101 and DO-160F qualification, and metal-base thermal performance - making it the sole option for mission-critical aerospace and high-reliability automotive power rail protection.
Availability
MAPLAD36KP15CA is available at Aetrix Electronics and suitable for aerospace avionics, automotive power electronics, and industrial motor drive applications requiring stable component supply, long-term lifecycle assurance, and traceable high-reliability sourcing.
Supply support for MAPLAD36KP15CA 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 (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.
MAPLAD36KP15CA 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 clamping voltage of MAPLAD36KP15CA at its rated peak pulse current?
The MAPLAD36KP15CA has a maximum clamping voltage (VC) of 25.8 V at its peak pulse current (IPP) of 1396 A under 10/1000 μs waveform conditions. This value is guaranteed across temperature and ensures protected circuits remain below critical voltage thresholds during surge events. The MAPLAD36KP15CA achieves this with sub-5 ns response time and symmetrical bidirectional behavior.
Is MAPLAD36KP15CA qualified for automotive applications?
Yes, MAPLAD36KP15CA is AEC-Q101 qualified, confirming its suitability for automotive underhood and powertrain applications. It operates reliably from −55°C to +150°C junction temperature and withstands mechanical shock, vibration, and humidity testing per the standard. The MAPLAD36KP15CA is routinely deployed in engine control units and ADAS modules for load dump protection.
Does MAPLAD36KP15CA require special PCB layout considerations?
Yes - MAPLAD36KP15CA requires a minimum 1.0-inch² copper pour on the bottom layer connected to the metal base for thermal management, per Microsemi's recommended pad layout. Trace inductance must be minimized: input/output traces should be short and wide, and the device must be placed adjacent to the protected connector or power entry point. The MAPLAD36KP15CA's performance degrades significantly without proper thermal anchoring.
How does MAPLAD36KP15CA differ from unidirectional variants like MAPLAD36KP15A?
MAPLAD36KP15CA is bidirectional, providing symmetrical clamping for both positive and negative transients, whereas MAPLAD36KP15A is unidirectional and only protects against one polarity. The CA suffix denotes bidirectional construction, essential for AC-coupled lines, differential buses, or systems exposed to reverse-polarity faults. Both share identical PPP, VWM, and thermal specs, but MAPLAD36KP15CA's dual-path design eliminates polarity dependency during layout.
Can MAPLAD36KP15CA be used for IEC 61000-4-5 compliance testing?
Yes - MAPLAD36KP15CA is explicitly certified for IEC 61000-4-5 secondary lightning protection across Classes 1–5 with 42 Ω, 12 Ω, and 2 Ω source impedances. Its 36 kW rating and low clamping voltage enable pass-level performance in test labs without additional series components. When designing to IEC 61000-4-5, the MAPLAD36KP15CA serves as the final-stage protector in coordinated protection schemes.
MAPLAD36KP15CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- Nonstandard SMD
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 25.8V
- Current - Peak Pulse (10/1000µs):
- 1396A (1.396kA)
- 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
MAPLAD36KP15CA FAQ
1.How can I place an order for MAPLAD36KP15CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP15CA 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 MAPLAD36KP15CA reliable?
The price and inventory of MAPLAD36KP15CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP15CA is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP15CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP15CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP15CA?
MAPLAD36KP15CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP15CA 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 MAPLAD36KP15CA?
For technical support, including MAPLAD36KP15CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP15CA requirements.
6.How does Aetrix verify that MAPLAD36KP15CA is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP15CA 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 MAPLAD36KP15CA meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP15CA?
All MAPLAD36KP15CA units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP15CA, 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 MAPLAD36KP15CA part is unused and in its original packaging.
Return procedure for MAPLAD36KP15CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP15CA 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…
