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Microchip Technology MAPLAD36KP15AE3
- Part No.:
- MAPLAD36KP15AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP15AE3.pdf
- Description:
- TVS DIODE 15VWM 25.8VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:6,549
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Product details
Overview
MAPLAD36KP15AE3 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 kW peak pulse power at 10/1000 μs, features a 15 V reverse standoff voltage (VWM), clamps to ≤25.8 V at 3000 A peak impulse current (IPP), and operates across –55°C to +150°C junction temperature.
For engineers reviewing the MAPLAD36KP15AE3 datasheet, MAPLAD36KP15AE3 pinout, MAPLAD36KP15AE3 application, or MAPLAD36KP15AE3 equivalent, key selection criteria include its DO-160F Waveform 4 Level 4 compliance, 1.0°C/W junction-to-case thermal resistance, RoHS-compliant e3 plating, and suitability for secondary lightning protection per IEC 61000-4-5 with 42 Ω source impedance.
Technical Context
This TVS diode uses an avalanche breakdown mechanism to clamp transient overvoltages rapidly-response time <100 ps for unidirectional operation-while maintaining low leakage (<300 μA at VWM). Its void-free UL94V-0 epoxy package and metal-base cathode construction optimize thermal dissipation under multi-stroke surge conditions.
It meets AEC-Q101 stress testing requirements and supports MIL-PRF-19500 upscreening options. Electrical performance is specified at 25°C with derating above 25°C ambient, and it achieves full surge capability only when mounted on FR4 with the recommended pad layout per RF01216 Rev B.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - enables single-device protection against severe lightning-induced transients per RTCA DO-160 Section 22. |
| Reverse Standoff Voltage (VWM) | 15 V - maximum continuous operating voltage before clamping initiates; matches 12 V automotive nominal bus with margin. |
| Breakdown Voltage (V(BR)) | 15.6–17.2 V @ 5 mA - defines onset of avalanche conduction; ensures reliable triggering above system peak voltage. |
| Max Clamping Voltage (VC) | 25.8 V @ 3000 A IPP - limits downstream component stress during worst-case surge events. |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - allows efficient heat transfer to PCB copper or heatsink, critical for multi-pulse reliability. |
| Standby Current (ID) | ≤300 μA @ 15 V - minimizes quiescent power loss in always-on vehicle subsystems. |
| Moisture Sensitivity Level | Level 1 per J-STD-020B - eliminates dry-pack requirement and simplifies SMT handling and storage. |
Pinout & Package
MAPLAD36KP15AE3 uses a surface-mount PLAD package with two terminals: anode and cathode. The cathode is the metal base (bottom side) of the device; polarity marking applies only to unidirectional versions. Package dimensions: 12.32 × 10.54 × 5.08 mm (L × W × H), with recommended pad layout per RF01216 Rev B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive input terminal | Connected to protected line (e.g., power rail); conducts during reverse-biased surge event. |
| Cathode (metal base) | Ground reference / return path | Must be soldered to large copper pour or heatsink for thermal and electrical integrity; serves as primary heat sink interface. |
Key Features
| Feature | Design Value |
|---|---|
| DO-160F Waveform 4 Level 4 compliance | Withstands 6.4/69 μs pin-injection transients up to 15 kV without degradation-validated for avionics signal line protection. |
| AEC-Q101 qualification | Passes accelerated stress tests including HTGB, HTRB, and temperature cycling-ensures reliability in automotive under-hood environments. |
| RoHS-compliant e3 plating | Matte-tin termination compatible with lead-free reflow profiles and prevents intermetallic growth during thermal cycling. |
| Low-profile thermally optimized body | UL94V-0 void-free epoxy package with 1.0 °C/W RθJC enables >90% of PPP rating utilization on standard FR4 with minimal board area. |
| Traceable wafer and assembly lots | Full lot traceability supports AS9100 and IATF 16949 production audits for aerospace and automotive OEMs. |
Applications
| Aerospace Avionics Power Bus Protection | Automotive Load Dump Suppression |
|---|---|
Use Scenario: Protecting 28 V DC power distribution networks in commercial aircraft against induced lightning transients per RTCA DO-160 Section 22. IC Role / Device Role / Timing Role: Unidirectional TVS placed at power entry point to clamp surges before reaching downstream regulators and controllers. Use Value: Achieves Level 4 pin injection immunity (Waveform 4) and Class 5 secondary lightning protection with 42 Ω source impedance-reducing need for cascaded protection stages. | Use Scenario: Safeguarding engine control units (ECUs) and infotainment modules during alternator load dump events in 12 V vehicles. IC Role / Device Role / Timing Role: Primary surge suppression element connected between battery rail and ground, triggered within <100 ps. Use Value: Clamps to 25.8 V at 3000 A, limiting voltage overshoot below 30 V-within safe operating range of 3.3 V/5 V logic and CAN transceivers. |
| Industrial Motor Drive DC Link Protection | Railway Signaling Interface Protection |
Use Scenario: Shielding IGBT gate drivers and current sensors on 48 V DC link rails from switching-induced transients in variable-frequency drives. IC Role / Device Role / Timing Role: Fast-response TVS placed across DC link capacitor terminals to absorb repetitive commutation spikes. Use Value: Withstands 0.05% duty factor impulse repetition without thermal runaway, enabled by 1.0 °C/W RθJC and low thermal mass design. | Use Scenario: Securing 72 V signaling lines in train control systems against EFT bursts and ESD per IEC 61000-4-4 and -4-2. IC Role / Device Role / Timing Role: Bidirectional-capable variant (e.g., MAPLAD36KP15CA) used on differential RS-485 interfaces for symmetrical surge suppression. Use Value: Delivers 25.8 V clamping in unidirectional mode and matched ±25.8 V clamping in bidirectional configuration-preserving signal integrity during common-mode surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A | 600 W PPP rating, SMB package, 1.0 mm height - lacks DO-160F Waveform 4 Level 4 validation and multi-stroke capability. | Targeted at consumer-grade industrial I/O protection; insufficient for certified avionics or automotive safety-critical nodes. | Select SMBJ15A only for cost-sensitive, non-certified applications where surge energy remains below 100 J per event. |
| SMCJ15A | 1500 W PPP rating, SMC package, 2.6 mm height - validated to IEC 61000-4-5 Class 4 but not DO-160F or AEC-Q101. | Suitable for general-purpose industrial equipment; does not meet aerospace lightning multi-stroke or automotive load dump waveform fidelity. | Choose SMCJ15A for legacy designs requiring footprint compatibility with SMC, but verify thermal margin at 3000 A peak current. |
Compared with SMBJ15A and SMCJ15A, MAPLAD36KP15AE3 provides 24× and 24× higher peak pulse power respectively, full DO-160F and AEC-Q101 qualification, and a thermally optimized PLAD package enabling direct mounting to heatsinks-making it the only option qualified for certified aerospace and automotive power rail protection.
Availability
MAPLAD36KP15AE3 is available at Aetrix Electronics and suitable for aerospace avionics, automotive ECU power management, and industrial motor drive DC link protection requiring stable component supply, long-term lifecycle support, and certified surge performance.
Supply support for MAPLAD36KP15AE3 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, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The MAPLAD series was developed specifically for high-energy transient suppression in safety-critical platforms-emphasizing multi-stroke survivability, thermal robustness, and regulatory compliance for DO-160, AEC-Q101, and IEC 61000-4-x standards.
FAQ
What is the clamping voltage of MAPLAD36KP15AE3 at its rated peak pulse current?
The MAPLAD36KP15AE3 has a maximum clamping voltage (VC) of 25.8 V at 3000 A peak impulse current (IPP) under 10/1000 μs waveform conditions. This value is measured per Figure 3 in RF01216 Rev B and ensures downstream circuitry remains within safe voltage limits during worst-case transients. The clamping behavior is repeatable across multi-stroke events when mounted per recommended pad layout.
Is MAPLAD36KP15AE3 compliant with RoHS and halogen-free standards?
Yes, MAPLAD36KP15AE3 carries the "e3" suffix indicating RoHS-compliant matte-tin plating per JEDEC J-STD-020B. It meets EU RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. No exemptions apply, and the void-free UL94V-0 epoxy body contains no brominated flame retardants.
Does MAPLAD36KP15AE3 require a heatsink for full 36 kW rating?
No external heatsink is required for single-event 36 kW operation, but thermal performance depends on PCB layout. MAPLAD36KP15AE3 achieves its 1.0 °C/W RθJC rating only when soldered to a minimum 10 cm² copper pour on inner or outer layers. For repetitive surges (>0.05% duty cycle), additional heatsinking or forced air may be needed to maintain junction temperature ≤150°C.
Can MAPLAD36KP15AE3 be used in bidirectional configurations?
No-MAPLAD36KP15AE3 is unidirectional only. The "A" suffix denotes unidirectional polarity; bidirectional variants use the "CA" suffix (e.g., MAPLAD36KP15CA). Using MAPLAD36KP15AE3 in reverse-biased AC applications will cause catastrophic failure due to forward conduction during negative half-cycles.
What is the moisture sensitivity level (MSL) and floor life of MAPLAD36KP15AE3?
MAPLAD36KP15AE3 is rated MSL Level 1 per IPC/JEDEC J-STD-020B, meaning it has unlimited floor life at ≤30°C/60% RH and requires no dry pack or baking prior to reflow. This simplifies SMT handling and eliminates moisture-related popcorning risks during lead-free reflow profiles up to 260°C peak.
MAPLAD36KP15AE3 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):
- 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
MAPLAD36KP15AE3 FAQ
1.How can I place an order for MAPLAD36KP15AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP15AE3 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 MAPLAD36KP15AE3 reliable?
The price and inventory of MAPLAD36KP15AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP15AE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP15AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP15AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP15AE3?
MAPLAD36KP15AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP15AE3 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 MAPLAD36KP15AE3?
For technical support, including MAPLAD36KP15AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP15AE3 requirements.
6.How does Aetrix verify that MAPLAD36KP15AE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP15AE3 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 MAPLAD36KP15AE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP15AE3?
All MAPLAD36KP15AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP15AE3, 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 MAPLAD36KP15AE3 part is unused and in its original packaging.
Return procedure for MAPLAD36KP15AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP15AE3 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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