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Microchip Technology SMAJ100AE3/TR13
- Part No.:
- SMAJ100AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ100AE3/TR13.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,550
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Product details
Overview
SMAJ100AE3/TR13 from Microsemi is a unidirectional surface-mount transient voltage suppressor (TVS) designed for primary overvoltage protection in DC power rails and signal lines. It features a 100 V standoff voltage (VWM), 111 V minimum breakdown voltage (VBR), clamps transients to ≤179 V at 5.5 A peak pulse current (IPP), and delivers 500 W peak pulse power (10/1000 µs). It is used in industrial power supplies, telecom interface circuits, and automotive body control modules requiring IEC61000-4-5 Class 1 secondary lightning protection.
For engineers reviewing the SMAJ100AE3/TR13 datasheet, SMAJ100AE3/TR13 pinout, SMAJ100AE3/TR13 application, or SMAJ100AE3/TR13 equivalent, this page provides verified electrical parameters, DO-214AC package details, IEC-compliant protection levels, and RoHS-compliant sourcing status - all confirmed from Microsemi's official MSC0270A Rev L datasheet.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt device: it remains high-impedance below 100 V (VWM) and transitions to low-impedance conduction above 111 V (VBR min), limiting transient energy to protected downstream circuitry. Its <100 ps theoretical response time ensures effective suppression of ESD (IEC61000-4-2) and EFT (IEC61000-4-4) events.
The device is rated for 500 W peak pulse power at 25 °C with 0.01% duty cycle, supports 40 A forward surge current (8.3 ms half-sine), and maintains stable operation across –65 °C to +150 °C. Thermal resistance is 15 °C/W junction-to-lead when soldered per recommended FR4 footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin. |
| VBR min @ IBR | 111 V @ 1 mA - Minimum voltage at which avalanche conduction initiates; ensures predictable turn-on threshold. |
| VC @ IPP | 179 V @ 5.5 A - Clamped voltage during 10/1000 µs surge; determines maximum stress on protected ICs. |
| PPP | 500 W - Peak transient power handling capability; enables robust protection against lightning-induced surges. |
| ID @ VWM | 3.1 µA - Reverse leakage current at 100 V; negligible loading on 12–48 V supply rails. |
| tRESPONSE | <100 ps - Theoretical turn-on delay; ensures sub-nanosecond reaction to fast-rising ESD pulses. |
| TOP/TSTG | –65 °C to +150 °C - Full operational and storage temperature range; suitable for under-hood automotive and industrial environments. |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, void-free thermosetting epoxy case with matte-tin-plated C-bend leads. Cathode indicated by band; polarity critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; completes shunt path during transient conduction. |
| Cathode | High-side connection point | Connected to protected line (e.g., 100 V rail); carries full surge current to ground via anode. |
Key Features
| Feature | Design Value |
|---|---|
| RoHS-compliant "e3" suffix | Lead-free matte-tin plating per J-STD-020B Level 1 moisture sensitivity; no dry pack required. |
| 500 W 10/1000 µs rating | Validated clamping performance under standardized lightning surge waveform; meets IEC61000-4-5 Class 1 (42 Ω source). |
| Unidirectional configuration | Single-polarity clamping optimized for DC power rail protection; lower leakage vs. bidirectional variants. |
| DO-214AC mechanical compatibility | Standardized footprint matching JEDEC DO-214AC outline (with minor max dimension tolerance); enables drop-in PCB layout reuse. |
| 100% temperature cycling option (MA prefix) | Avionics-grade screening available: –55 °C to +125 °C (10×), surge (3×), and 24 h HTRB testing with post-test VZ/IR verification. |
Applications
| Industrial Power Supply Protection | Telecom Interface Line Protection |
|---|---|
Use Scenario: 100 V DC input rail in programmable logic controller (PLC) power module exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between rail and chassis ground to clamp surges before reaching DC-DC converter ICs. Use Value: Limits transient voltage to ≤179 V, preventing damage to 200 V-rated MOSFETs and enabling compliance with IEC61000-4-5 Class 1 (42 Ω source). |
Use Scenario: RS-485 data line in outdoor base station equipment subjected to induced RF and nearby lightning coupling. IC Role / Device Role / Timing Role: TVS connected line-to-ground on each differential pair to suppress common-mode transients without distorting signal integrity. Use Value: Sub-100 ps response ensures clamping before ESD pulse edge reaches transceiver; 3.1 µA leakage avoids bias current errors in precision termination networks. |
| Automotive Body Control Module | Renewable Energy Inverter DC Link |
Use Scenario: 12 V auxiliary supply rail in BCM exposed to ISO 7637-2 pulse 1 (inductive load dump) and pulse 2a (switching transients). IC Role / Device Role / Timing Role: Primary overvoltage clamp on microcontroller VDD rail, coordinated with upstream fuse and downstream ceramic decoupling. Use Value: 500 W rating handles 100 V/5.5 A surge without degradation; –65 °C to +150 °C rating supports engine bay mounting. |
Use Scenario: 100 V DC link in solar microinverter where PV string voltage may reach 100 V under open-circuit conditions. IC Role / Device Role / Timing Role: Overvoltage clamp protecting gate drivers and IGBTs during grid fault-induced voltage spikes. Use Value: 111 V VBR provides 11% margin above nominal 100 V rail, while 179 V clamping prevents gate oxide breakdown in 200 V-rated power devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100AHE3/TR13 | Same electrical specs but with enhanced reliability screening (MIL-PRF-19500 JANTX-grade); higher cost and longer lead time. | Required for aerospace/defense programs needing MIL-spec qualification; not needed for commercial industrial use. | Select SMAJ100AHE3/TR13 only if avionics-grade screening (MX prefix) or extended HTRB validation is mandated by system spec. |
| SMBJ100A-E3/52 | Same VWM, VBR, VC, but lower 600 W PPP rating and SMB (DO-214AA) package - 2.5 mm wider body than SMAJ. | Higher power headroom but requires PCB pad revision due to larger footprint and different thermal profile. | Choose SMBJ100A-E3/52 only if system-level surge testing exceeds 500 W or thermal derating margins are insufficient with SMAJ's 15 °C/W RθJL. |
Compared with SMAJ100AE3/TR13, the SMAJ100AHE3/TR13 adds military-grade screening without altering clamping behavior, while SMBJ100A-E3/52 trades compact DO-214AC packaging for higher surge capacity and different thermal management - making the original SMAJ100AE3/TR13 optimal for space-constrained, cost-sensitive industrial designs requiring validated 500 W IEC61000-4-5 Class 1 protection.
Availability
SMAJ100AE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, telecom interface protection, and automotive body control modules requiring stable component supply and RoHS-compliant sourcing.
Supply support for SMAJ100AE3/TR13 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 and mixed-signal components for aerospace, defense, and industrial markets.
The SMAJ series was engineered for surface-mount transient suppression in harsh-environment DC power systems, emphasizing fast response, repeatable clamping, and mechanical robustness in DO-214AC packaging.
FAQ
What is the clamping voltage of SMAJ100AE3/TR13 at its rated peak pulse current?
The SMAJ100AE3/TR13 clamps to a maximum of 179 V when subjected to its rated 5.5 A peak pulse current (IPP) under the standard 10/1000 µs waveform. This value is measured and guaranteed per Microsemi's MSC0270A Rev L datasheet, ensuring predictable overvoltage limiting for downstream 200 V-rated components in the protected circuit.
Is SMAJ100AE3/TR13 unidirectional or bidirectional?
SMAJ100AE3/TR13 is a unidirectional transient voltage suppressor, as indicated by the absence of "C" or "CA" in its part number suffix. It conducts only in reverse bias (cathode-to-anode), making it suitable for DC rail protection where polarity is fixed and leakage must be minimized - unlike bidirectional variants such as SMAJ100CAE3/TR13.
Does SMAJ100AE3/TR13 meet IEC61000-4-5 Class 1 requirements?
Yes, SMAJ100AE3/TR13 is explicitly rated for IEC61000-4-5 Class 1 secondary lightning protection with a 42 Ω source impedance, as confirmed in the "APPLICATIONS / BENEFITS" section of the MSC0270A datasheet. Its 500 W peak pulse power and 179 V clamping voltage ensure compliance when applied per recommended layout and grounding practices.
What is the package type and moisture sensitivity level of SMAJ100AE3/TR13?
SMAJ100AE3/TR13 uses the DO-214AC (SMA) surface-mount package with matte-tin-plated C-bend leads and is rated Moisture Sensitivity Level 1 per IPC/JEDEC J-STD-020B - meaning it can be stored indefinitely at ambient conditions without dry packing or baking prior to reflow soldering.
Can SMAJ100AE3/TR13 be used in automotive under-hood applications?
Yes, SMAJ100AE3/TR13 is qualified for operation from –65 °C to +150 °C and features a void-free UL94V-0 epoxy case, making it suitable for under-hood automotive environments. Its 100 V standoff and 179 V clamping align with ISO 7637-2 pulse 1 and pulse 2a requirements when implemented with appropriate PCB layout and grounding.
SMAJ100AE3/TR13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- DO-214AC, SMA
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 162V
- Current - Peak Pulse (10/1000µs):
- 3.1A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMAJ100AE3/TR13 FAQ
1.How can I place an order for SMAJ100AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ100AE3/TR13 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 SMAJ100AE3/TR13 reliable?
The price and inventory of SMAJ100AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ100AE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMAJ100AE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ100AE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ100AE3/TR13?
SMAJ100AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ100AE3/TR13 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 SMAJ100AE3/TR13?
For technical support, including SMAJ100AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ100AE3/TR13 requirements.
6.How does Aetrix verify that SMAJ100AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMAJ100AE3/TR13 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 SMAJ100AE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMAJ100AE3/TR13?
All SMAJ100AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ100AE3/TR13, 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 SMAJ100AE3/TR13 part is unused and in its original packaging.
Return procedure for SMAJ100AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ100AE3/TR13 Tags
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