My Inquiry
My Account
Microchip Technology MAPLAD36KP40CAE3
- Part No.:
- MAPLAD36KP40CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP40CAE3.pdf
- Description:
- TVS DIODE 40VWM 64.5VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:5,423
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAPLAD36KP40CAE3 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 ≤64.5 V under 559 A peak impulse current, and features a 40 V reverse standoff voltage (VWM), 44.4–49.1 V breakdown voltage (V(BR)), and 1.0 °C/W junction-to-case thermal resistance.
For engineers reviewing the MAPLAD36KP40CAE3 datasheet, MAPLAD36KP40CAE3 pinout, MAPLAD36KP40CAE3 application, or MAPLAD36KP40CAE3 equivalent, this device is selected for RTCA DO-160 Section 22 multi-stroke lightning compliance, IEC 61000-4-5 secondary lightning protection (Class 1–5), and pin-injection immunity per Waveform 4 and 5A - critical for avionics power bus and engine control unit interfaces.
Technical Context
This TVS diode operates as a clamping-type protector with symmetrical bidirectional avalanche breakdown, enabling suppression of both positive and negative transients without polarity sensitivity. Its low RθJC (1.0 °C/W) and void-free thermosetting epoxy package support direct mounting to heatsinks for sustained multi-pulse operation under <0.05% duty cycle.
It meets AEC-Q101 stress testing requirements and supports MIL-PRF-19500 upscreening options. Electrical behavior is defined by fixed VWM = 40 V, guaranteed V(BR) min/max window (44.4–49.1 V @ 5 mA), and VC ≤ 64.5 V @ IPP = 559 A - all verified per IEC 61000-4-2/4-4/4-5 and RTCA/DO-160F test waveforms.
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) | 40 V - maximum continuous DC or peak AC voltage before clamping initiates |
| Breakdown Voltage (V(BR)) | 44.4–49.1 V @ 5 mA - defines precise avalanche onset threshold for predictable clamping |
| Clamping Voltage (VC) | ≤64.5 V @ 559 A - limits downstream voltage stress during worst-case surge events |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables effective heat transfer to PCB copper or external heatsink |
| Standby Current (ID) | ≤10 μA @ 40 V - negligible leakage during normal operation, preserving system efficiency |
| Moisture Sensitivity Level | Level 1 per J-STD-020B - no dry pack or bake required prior to reflow |
Pinout & Package
MAPLAD36KP40CAE3 uses a surface-mount PLAD package with two terminals: anode and cathode formed on opposite sides of the metal base. The cathode is the metal base underside (per manufacturer marking convention); polarity is non-critical for bidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive surge path terminal | Connected to protected line; conducts during negative transients |
| Cathode | Negative surge path terminal / metal base | Mounted directly to thermal pad/heatsink; serves as primary heat dissipation path |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping architecture | Enables single-device protection of AC-coupled or floating signal/power lines without polarity concerns |
| 3σ lot-norm screening on ID | Ensures consistent low-leakage performance across production lots for mission-critical reliability |
| RoHS-compliant matte-tin plating (e3) | Supports lead-free reflow assembly while maintaining solderability per MIL-STD-750 Method 2026 |
| UL94V-0 void-free epoxy body | Provides flame-retardant mechanical integrity and insulation stability under thermal cycling |
| RTCA DO-160F Waveform 4 & 5A compliance | Validated for pin-injection immunity in avionics I/O interfaces up to Level 5 (short-distance configuration) |
Applications
| Aircraft Power Distribution Units | Automotive Engine Control Modules |
|---|---|
Use Scenario: Protection of 28 V DC main bus against lightning-induced surges per RTCA DO-160 Section 22. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed across bus input to limit transient overvoltage to safe levels. Use Value: Withstands ≥100 multi-stroke lightning pulses at 36 kW without degradation, meeting Class 5 short-distance IEC 61000-4-5 requirements. |
Use Scenario: Load dump suppression on 12 V battery-fed ECU power rails during alternator regulation failure. IC Role / Device Role / Timing Role: High-power TVS absorbing >400 A transients within microseconds to prevent microcontroller latch-up. Use Value: Clamps to ≤64.5 V at 559 A, keeping downstream 3.3 V/5 V logic supplies within absolute maximum ratings during 120 V/400 ms load dump events. |
| Industrial Motor Drive Gate Drivers | Railway Signaling Interface Cards |
Use Scenario: IGBT gate driver supply rail protection against switching-induced dv/dt coupling and inductive kickback. IC Role / Device Role / Timing Role: Fast-response TVS placed at gate driver IC input to shunt sub-100 ns transients. Use Value: Sub-5 ns response time and 1.0 °C/W thermal resistance enable reliable operation under repetitive 10 kHz switching with 0.05% duty factor. |
Use Scenario: Ethernet PHY and RS-485 port protection in wayside signaling equipment exposed to track-side EMI and lightning coupling. IC Role / Device Role / Timing Role: Bidirectional TVS on differential data lines to suppress common-mode surges per IEC 61000-4-5 Class 4 (42 Ω source). Use Value: Validated for 42 Ω source impedance up to Class 4, clamping induced surges to <64.5 V while maintaining signal integrity at 10 Mbps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ40CA | Lower PPP (600 W), SMA package, RθJA = 110 °C/W, no AEC-Q101 or DO-160 qualification | Consumer-grade industrial controls; not suitable for aviation or automotive safety-critical use | Select only for cost-sensitive, low-energy surge environments where qualification is not mandated |
| SMCJ40CA | PPP = 1500 W, SMC package, RθJA = 18 °C/W, qualified to AEC-Q101 but not DO-160 | Automotive body electronics; insufficient for multi-stroke lightning or avionics pin injection | Acceptable for basic ISO 7637-2 compliance but cannot replace MAPLAD36KP40CAE3 in certified aerospace designs |
Compared with SMBJ40CA and SMCJ40CA, MAPLAD36KP40CAE3 provides 24× and 24× higher peak pulse power respectively, full RTCA DO-160F and IEC 61000-4-5 Class 5 validation, and a thermally optimized PLAD package enabling direct heatsink mounting - making it uniquely suited for certified airborne and high-reliability vehicle systems.
Availability
MAPLAD36KP40CAE3 is available at Aetrix Electronics and suitable for aircraft power distribution units, automotive engine control modules, and industrial motor drive gate drivers requiring stable component supply across extended product lifecycles.
Supply support for MAPLAD36KP40CAE3 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.
The MAPLAD36KP40CAE3 belongs to Microsemi's high-power PLAD-series TVS family, engineered specifically for multi-stroke lightning protection and DO-160F compliance in certified avionics and harsh-environment vehicle electronics.
FAQ
What is the clamping voltage specification for MAPLAD36KP40CAE3 under peak surge conditions?
The MAPLAD36KP40CAE3 has a maximum clamping voltage (VC) of 64.5 V when subjected to its rated peak pulse current of 559 A at the standard 10/1000 μs waveform. This value is measured at the device terminals under controlled test conditions and ensures downstream circuitry remains within safe operating voltage limits during transient events.
Is MAPLAD36KP40CAE3 qualified for automotive applications per AEC-Q101?
Yes, MAPLAD36KP40CAE3 is tested and qualified in accordance with AEC-Q101 requirements for discrete semiconductors. This includes stress tests for temperature cycling, humidity bias, and surge robustness - confirming suitability for under-hood and powertrain applications where reliability under thermal and electrical stress is mandatory.
Does MAPLAD36KP40CAE3 meet RTCA DO-160F Section 22 lightning protection requirements?
Yes, MAPLAD36KP40CAE3 is explicitly validated for RTCA DO-160F Section 22 multi-stroke lightning testing. Its 36 kW peak pulse power rating, low clamping voltage, and thermal design allow it to withstand repeated lightning-induced surges without parametric shift or functional failure - a key requirement for aircraft power and avionics systems.
What does the "CA" suffix indicate in MAPLAD36KP40CAE3?
The "CA" suffix in MAPLAD36KP40CAE3 denotes bidirectional construction, meaning the device provides symmetrical clamping for both positive and negative transients. This eliminates polarity concerns during board layout and enables use on AC-coupled lines or floating buses where voltage reversals may occur during fault conditions.
How is thermal management implemented for MAPLAD36KP40CAE3 in high-power applications?
MAPLAD36KP40CAE3 achieves effective thermal management via its metal-base PLAD package, which offers a low 1.0 °C/W junction-to-case thermal resistance. Engineers must mount the cathode (metal base) directly to a thermally conductive PCB copper pour or external heatsink using the recommended pad layout to dissipate heat generated during multi-pulse surge events.
MAPLAD36KP40CAE3 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):
- 40V
- Voltage - Breakdown (Min):
- 44.4V
- Voltage - Clamping (Max) @ Ipp:
- 64.5V
- Current - Peak Pulse (10/1000µs):
- 559A
- 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
MAPLAD36KP40CAE3 FAQ
1.How can I place an order for MAPLAD36KP40CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP40CAE3 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 MAPLAD36KP40CAE3 reliable?
The price and inventory of MAPLAD36KP40CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP40CAE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP40CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP40CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP40CAE3?
MAPLAD36KP40CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP40CAE3 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 MAPLAD36KP40CAE3?
For technical support, including MAPLAD36KP40CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP40CAE3 requirements.
6.How does Aetrix verify that MAPLAD36KP40CAE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP40CAE3 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 MAPLAD36KP40CAE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP40CAE3?
All MAPLAD36KP40CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP40CAE3, 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 MAPLAD36KP40CAE3 part is unused and in its original packaging.
Return procedure for MAPLAD36KP40CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP40CAE3 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…
