My Inquiry
My Account
Microchip Technology MAPLAD36KP220CA
- Part No.:
- MAPLAD36KP220CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP220CA.pdf
- Description:
- TVS DIODE 220VWM 356VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:9,864
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAPLAD36KP220CA 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 transients to ≤356 V at 990 A, and features a 220 V reverse standoff voltage (VWM), 245–271 V breakdown voltage (V(BR)), and <5 ns response time. It is qualified to AEC-Q101 and meets RTCA DO-160 Section 22 multi-stroke lightning requirements.
For engineers reviewing the MAPLAD36KP220CA datasheet, MAPLAD36KP220CA pinout, MAPLAD36KP220CA application, or MAPLAD36KP220CA equivalent, this device serves as a high-reliability secondary lightning protector for avionics power inputs, automotive battery line interfaces, and industrial DC bus lines where low-profile SMT mounting and repeatable multi-pulse survivability are critical.
Technical Context
This TVS diode operates in bidirectional clamping mode with symmetrical avalanche breakdown characteristics across both polarities. Its thermally optimized PLAD package achieves 1.0 °C/W junction-to-case thermal resistance and supports sustained surge duty cycles ≤0.05% under FR4 board mounting per recommended pad layout.
The device complies with IEC 61000-4-5 (Class 1–5, 2/12/42 Ω source impedance), IEC 61000-4-2/4 (ESD/EFT), and RTCA DO-160F Waveform 4 (Level 4 up to 400 V) and Waveform 5A (Level 4 up to 78 V). Clamping performance is specified at 990 A IPP with VC ≤356 V, validated per Figure 3 derating curves.
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) | 220 V - maximum continuous DC or peak AC voltage before conduction begins |
| Breakdown Voltage (V(BR)) | 245–271 V @ 5 mA - defines reliable avalanche initiation threshold for bidirectional clamping |
| Clamping Voltage (VC) | ≤356 V @ 990 A - limits downstream circuit voltage during worst-case surge event |
| Peak Pulse Current (IPP) | 990 A @ 10/1000 μs - quantifies maximum single-event surge current it can divert |
| Response Time | <5 ns - ensures sub-nanosecond turn-on for fast-rising transients like ESD or switching spikes |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables efficient heat transfer to PCB copper pour or heatsink for multi-stroke operation |
Pinout & Package
MAPLAD36KP220CA uses the PLAD surface-mount package: void-free UL94V-0 epoxy body (12.32 × 10.54 × 5.08 mm), matte-tin plated terminals, cathode marked on metal base for unidirectional variants (not applicable here-bidirectional symmetry eliminates polarity marking). Mounting requires the specified pad layout (A = 11.94 mm, B = 5.85 mm) for thermal and mechanical reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 (Anode-side pad) | Surge Input / Line Terminal | Connects to protected line (e.g., aircraft 28 V DC bus); symmetric with Terminal 2 for bidirectional operation |
| Terminal 2 (Cathode-side pad) | Surge Return / Ground Reference | Connects to system ground plane; functions identically to Terminal 1 due to bidirectional construction |
| Metal Base (Bottom Surface) | Thermal Conduction Path | Directly transfers heat to PCB copper pour; must be soldered to ≥1000 mm² 2-oz copper area per datasheet pad layout |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping architecture | Enables protection of AC-coupled or floating DC lines without polarity constraints |
| AEC-Q101 qualification | Validates robustness for automotive under-hood and battery-line applications |
| RTCA DO-160F Section 22 compliance | Guarantees multi-stroke lightning survivability required for civil aircraft certification |
| 1.0 °C/W RθJC thermal resistance | Supports >100 surge events at 0.05% duty cycle without thermal runaway on properly designed PCB |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and floor-life restrictions for SMT assembly |
Applications
| Avionics Power Input Protection | Automotive Battery Line Protection |
|---|---|
|
Use Scenario: Protecting 28 V DC primary power input of flight control computers against induced lightning transients per DO-160F Section 22. IC Role / Device Role / Timing Role: Bidirectional TVS diode providing low-impedance shunt path during surge, clamping voltage to safe levels within nanoseconds. Use Value: Enables compliance with FAA airworthiness requirements by limiting transient voltage to ≤356 V at 990 A, preventing latch-up or damage to downstream DC/DC converters. |
Use Scenario: Safeguarding engine control unit (ECU) power supply against load dump pulses (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: High-power transient suppressor placed at ECU input filter stage to absorb 36 kW energy bursts without degradation. Use Value: Extends ECU lifetime by eliminating repeated stress on input capacitors and regulators during vehicle cranking and alternator field collapse events. |
| Industrial DC Bus Surge Suppression | Railway Signaling Interface Protection |
|
Use Scenario: Securing 220 V DC traction auxiliary power bus in rail vehicles against coupling from nearby lightning strikes or switching arcs. IC Role / Device Role / Timing Role: Secondary surge protector installed after primary MOV-based protection to handle residual fast-rising transients. Use Value: Reduces risk of false tripping in safety-critical monitoring circuits by clamping overshoot to ≤356 V with <5 ns response, preserving signal integrity. |
Use Scenario: Shielding trackside signaling logic inputs connected to long outdoor cables from induced surges in electrified railway environments. IC Role / Device Role / Timing Role: Bidirectional TVS mounted at cable entry point to shunt common-mode and differential-mode transients into chassis ground. Use Value: Maintains EN 50121-4 immunity compliance by suppressing IEC 61000-4-5 Class 4 surges (42 Ω source) up to 220 V working voltage without leakage or drift. |
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 SMAJ220CA | Lower PPP rating (400 W vs. 36,000 W); same VWM and bidirectional configuration | Suitable only for low-energy ESD/EFT; cannot meet DO-160F Section 22 or load dump requirements | Select MAPLAD36KP220CA when multi-kW surge handling is mandatory; SMAJ220CA only for board-level ESD near ICs |
| Vishay V220CH8 | Same 220 V VWM and bidirectional design; rated 30 kW PPP (vs. 36 kW) and higher RθJA (1.5 °C/W) | Validated for MIL-STD-1275E but not DO-160F Section 22; limited multi-stroke data | Choose MAPLAD36KP220CA for certified aviation use; V220CH8 may suffice for ruggedized ground vehicle applications |
Compared with SMAJ220CA and V220CH8, MAPLAD36KP220CA uniquely combines DO-160F Section 22 qualification, 36 kW PPP, and 1.0 °C/W thermal resistance-making it the only option for certified avionics power input protection requiring repeatable multi-stroke lightning survival.
Availability
MAPLAD36KP220CA is available at Aetrix Electronics and suitable for avionics power input protection, automotive battery line surge suppression, and industrial DC bus surge suppression requiring stable component supply across extended production lifecycles.
Supply support for MAPLAD36KP220CA 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) is a U.S.-based semiconductor company specializing in high-reliability analog, RF, and timing solutions for aerospace, defense, and industrial markets.
The MAPLAD36KP220CA belongs to Microsemi's high-power PLAD-series TVS family, engineered specifically for certified lightning and load dump protection in safety-critical platforms where thermal stability and multi-event survivability are non-negotiable.
FAQ
What is the clamping voltage of MAPLAD36KP220CA at its rated peak pulse current?
The MAPLAD36KP220CA has a maximum clamping voltage (VC) of 356 V at 990 A peak pulse current (IPP) under 10/1000 μs waveform conditions. This value is measured per Figure 3 in the RF01216 datasheet and represents the upper limit of voltage seen by downstream circuitry during worst-case surge events, ensuring compatibility with 250 V-rated components.
Is MAPLAD36KP220CA suitable for RTCA DO-160F Section 22 lightning testing?
Yes, MAPLAD36KP220CA is explicitly validated for RTCA DO-160F Section 22 multi-stroke lightning testing across all voltage grades up to 400 V. Its 36 kW PPP rating, <5 ns response, and thermal design enable repeatable performance through multiple 10/1000 μs strokes without parameter shift or failure-meeting the core requirement for civil aircraft certification.
Does MAPLAD36KP220CA require special PCB layout considerations?
Yes, MAPLAD36KP220CA requires adherence to the specified PLAD pad layout: 11.94 mm × 5.85 mm copper area per terminal with ≥1000 mm² 2-oz ground pour beneath the metal base. Deviation increases thermal resistance beyond the rated 1.0 °C/W, risking premature thermal failure during multi-pulse events per Figure 5 derating curve.
What is the standoff voltage tolerance and temperature coefficient of MAPLAD36KP220CA?
MAPLAD36KP220CA has a reverse standoff voltage (VWM) of 220 V with no explicit tolerance stated, but its breakdown voltage (V(BR)) range is 245–271 V at 5 mA. Its temperature coefficient of breakdown voltage (αV(BR)) is +20 mV/°C, meaning V(BR) increases linearly with junction temperature-critical for high-temperature under-hood or avionics bay deployments.
How does MAPLAD36KP220CA differ from unidirectional versions like MAPLAD36KP220A?
MAPLAD36KP220CA is bidirectional with symmetrical clamping in both polarities, while MAPLAD36KP220A is unidirectional and conducts only during negative transients relative to its marked cathode. The CA suffix denotes bidirectional construction; physically, MAPLAD36KP220CA lacks polarity marking on the body and exhibits identical V(BR) and VC in either direction-essential for AC or floating DC line protection.
MAPLAD36KP220CA 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):
- 220V
- Voltage - Breakdown (Min):
- 245V
- Voltage - Clamping (Max) @ Ipp:
- 356V
- Current - Peak Pulse (10/1000µs):
- 102A
- 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
MAPLAD36KP220CA FAQ
1.How can I place an order for MAPLAD36KP220CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP220CA 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 MAPLAD36KP220CA reliable?
The price and inventory of MAPLAD36KP220CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP220CA is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP220CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP220CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP220CA?
MAPLAD36KP220CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP220CA 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 MAPLAD36KP220CA?
For technical support, including MAPLAD36KP220CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP220CA requirements.
6.How does Aetrix verify that MAPLAD36KP220CA is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP220CA 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 MAPLAD36KP220CA meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP220CA?
All MAPLAD36KP220CA units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP220CA, 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 MAPLAD36KP220CA part is unused and in its original packaging.
Return procedure for MAPLAD36KP220CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP220CA 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…
