My Inquiry
My Account
Microchip Technology MAPLAD36KP75CA
- Part No.:
- MAPLAD36KP75CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP75CA.pdf
- Description:
- TVS DIODE 75VWM 121VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:5,204
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAPLAD36KP75CA 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, features a 75 V reverse standoff voltage (VWM), clamps to ≤121 V at 298 A peak impulse current, and meets RTCA DO-160 Section 22 multi-stroke lightning requirements.
For engineers reviewing the MAPLAD36KP75CA datasheet, MAPLAD36KP75CA pinout, MAPLAD36KP75CA application, or MAPLAD36KP75CA equivalent, this device is selected for secondary lightning protection per IEC 61000-4-5 (42 Ω, 12 Ω, and 2 Ω source impedances), pin injection protection per RTCA/DO-160F Waveform 4 (Level 4 up to 75 V) and Waveform 5A (Level 4 up to 38 V), and ESD/EFT immunity per IEC 61000-4-2/4-4.
Technical Context
This bidirectional TVS uses an avalanche diode structure optimized for low clamping ratio and minimal thermal resistance. Its void-free UL94V-0 epoxy package enables direct metal-base heat sinking with RθJC = 1.0 °C/W, supporting high-repetition-rate transients when mounted on FR4 with recommended pad layout.
It operates across –55 °C to +150 °C junction temperature, exhibits <5 ns response time, and maintains stable breakdown voltage (83.3–92.1 V @ 5 mA) with αV(BR) = 90 mV/°C - enabling predictable derating in avionics thermal environments.
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) | 75 V - maximum continuous operating voltage before conduction begins |
| Clamping Voltage (VC) | ≤121 V @ IPP = 298 A - limits downstream circuit stress during worst-case surge |
| Breakdown Voltage (V(BR)) | 83.3–92.1 V @ 5 mA - defines precise turn-on threshold for controlled avalanche |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables efficient heat transfer to PCB copper or heatsink |
| Response Time | <5 ns - ensures sub-nanosecond reaction to fast-rising ESD/EFT events |
| Operating Temperature Range | –55 °C to +150 °C - qualified for engine bay and flight-critical avionics mounting |
Pinout & Package
MAPLAD36KP75CA is housed in a low-profile surface-mount PLAD package with metal base acting as cathode terminal for bidirectional operation. The device has two terminals: anode and cathode, both accessible via solderable matte-tin plated leads conforming to MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive surge path input | Accepts positive transients relative to cathode; forms symmetrical clamping path in bidirectional mode |
| Cathode | Common reference / heat sink interface | Exposed metal base - must be soldered to thermal pad for RθJC = 1.0 °C/W performance |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping symmetry | Enables single-device protection of AC lines or differential buses without polarity constraints |
| RTCA DO-160F Waveform 4 Level 4 compliance | Withstands 6.4/69 μs pin-injection surges up to 75 V standoff - validated for aircraft data bus interfaces |
| IEC 61000-4-5 Class 5 support (42 Ω source) | Meets highest secondary lightning immunity for short-distance avionics installations |
| MIL-PRF-19500 upscreening option | Supports high-reliability screening (M, MA, MX, MXL levels) for mission-critical aerospace programs |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and floor-life limitations - simplifies SMT assembly logistics |
Applications
| Aircraft Data Bus Protection | Automotive Load Dump Suppression |
|---|---|
Use Scenario: Protecting ARINC 429 or MIL-STD-1553 receivers from induced lightning transients on long cable runs. IC Role / Device Role / Timing Role: Bidirectional TVS placed at connector entry point to clamp common-mode surges before signal conditioning circuitry. Use Value: Clamps to ≤121 V while absorbing 36 kW pulses - prevents receiver IC latch-up or damage during DO-160 Section 22 testing. | Use Scenario: Safeguarding infotainment ECUs during 12 V battery disconnection events generating >100 V spikes. IC Role / Device Role / Timing Role: Primary surge shunt across power rail, triggered within 5 ns to limit voltage overshoot. Use Value: Withstands 298 A peak current at 75 V standoff - exceeds ISO 7637-2 Pulse 5a/b requirements for Class D loads. |
| Avionics Power Input Stage | Industrial Motor Drive Gate Driver Protection |
Use Scenario: Securing 28 V DC power inputs of flight control computers against coupled lightning energy. IC Role / Device Role / Timing Role: Secondary protection stage following upstream filters, directly mounted to thermal pad on power entry PCB layer. Use Value: RθJC = 1.0 °C/W allows sustained multi-pulse operation - critical for repeated lightning strike scenarios. | Use Scenario: Shielding isolated gate drivers in servo inverters from IGBT switching noise and ground bounce. IC Role / Device Role / Timing Role: Low-capacitance TVS across driver supply rails (VDD/VSS) to suppress sub-10 ns ringing. Use Value: <5 ns response time clamps fast transients before driver logic thresholds are violated - prevents false turn-on. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75CA | 600 W PPP rating, SMC package, 10× lower surge capacity | Limited to consumer-grade or non-safety-critical industrial use | Select only where full DO-160 compliance is not required and surge energy is below 100 J |
| SMCJ75CA | 1500 W PPP rating, same SMC package footprint but 24× lower power handling | Suitable for automotive ECU secondary protection, not aircraft-level lightning | Use when cost sensitivity outweighs aerospace qualification needs and peak current stays under 100 A |
Compared with SMBJ75CA and SMCJ75CA, MAPLAD36KP75CA provides 60× and 24× higher peak pulse power respectively, enabling certified compliance with RTCA DO-160 Section 22 and IEC 61000-4-5 Class 5 - essential for flight-critical hardware where single-point failure is unacceptable.
Availability
MAPLAD36KP75CA is available at Aetrix Electronics and suitable for aircraft avionics, automotive powertrain electronics, and industrial motor drive systems requiring stable component supply across extended product lifecycles.
Supply support for MAPLAD36KP75CA 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, high-power, and precision timing solutions.
MAPLAD36KP75CA belongs to the PLAD-series high-power TVS family, engineered specifically for multi-stroke lightning protection in certified airborne equipment and harsh-environment vehicle electronics.
FAQ
What is the clamping voltage specification for MAPLAD36KP75CA at its rated peak pulse current?
The MAPLAD36KP75CA has a maximum clamping voltage (VC) of 121 V when subjected to its rated peak pulse current (IPP) of 298 A under 10/1000 μs waveform conditions. This value is measured across the device terminals during standardized surge testing and ensures downstream circuitry remains within safe voltage margins during transient events.
Does MAPLAD36KP75CA meet RTCA DO-160F lightning test requirements?
Yes, MAPLAD36KP75CA is validated for RTCA DO-160F Section 22 multi-stroke lightning testing. It achieves Level 4 pin injection protection for Waveform 4 (6.4/69 μs) up to 75 V standoff and supports Waveform 5A (40/120 μs) at Level 4 up to 38 V - making it suitable for protected data bus and power input interfaces in certified aircraft systems.
How is thermal management implemented for MAPLAD36KP75CA in PCB layout?
MAPLAD36KP75CA requires direct soldering of its exposed metal cathode base to a thermally robust PCB pad per the documented PLAD pad layout. This achieves a junction-to-case thermal resistance of 1.0 °C/W, enabling effective heat dissipation during repetitive surge events - critical for applications involving multiple lightning strikes or frequent load dump occurrences.
Is MAPLAD36KP75CA RoHS compliant?
Yes, MAPLAD36KP75CA is RoHS compliant, indicated by the "e3" suffix in its full nomenclature per Microsemi's part marking standard. The device uses annealed matte-tin plating on terminals and void-free UL94V-0 epoxy encapsulation, meeting EU Directive 2011/65/EU requirements without lead or other restricted substances.
What is the significance of the "CA" suffix in MAPLAD36KP75CA?
The "CA" suffix in MAPLAD36KP75CA explicitly denotes bidirectional construction. Unlike unidirectional variants ending in "A", this version provides symmetrical clamping for both positive and negative transients - essential for protecting AC-coupled signal lines, differential buses, or floating power domains where polarity reversal cannot be assumed.
MAPLAD36KP75CA 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):
- 75V
- Voltage - Breakdown (Min):
- 83.3V
- Voltage - Clamping (Max) @ Ipp:
- 121V
- Current - Peak Pulse (10/1000µs):
- 298A
- 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
MAPLAD36KP75CA FAQ
1.How can I place an order for MAPLAD36KP75CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP75CA 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 MAPLAD36KP75CA reliable?
The price and inventory of MAPLAD36KP75CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP75CA is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP75CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP75CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP75CA?
MAPLAD36KP75CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP75CA 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 MAPLAD36KP75CA?
For technical support, including MAPLAD36KP75CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP75CA requirements.
6.How does Aetrix verify that MAPLAD36KP75CA is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP75CA 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 MAPLAD36KP75CA meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP75CA?
All MAPLAD36KP75CA units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP75CA, 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 MAPLAD36KP75CA part is unused and in its original packaging.
Return procedure for MAPLAD36KP75CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP75CA 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…
