Microchip Technology SMAJ6.0AE3/TR13
- Part No.:
- SMAJ6.0AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ6.0AE3/TR13.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AC
- Quantity:
- Payment:

- Shipping:

Inventory:3,178
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Product details
Overview
SMAJ6.0AE3/TR13 from Microsemi is a unidirectional surface-mount transient voltage suppressor (TVS) designed for primary overvoltage protection of DC power rails and signal lines. It features a 6.0 V reverse standoff voltage (VWM), 6.67 V minimum breakdown voltage (VBR) at 10 mA, 10.3 V maximum clamping voltage (VC) at 48.5 A peak pulse current, and 500 W peak pulse power rating per 10/1000 µs waveform - used in industrial power supply input stages, automotive body control modules, and PoE-powered Ethernet interfaces.
For engineers reviewing the SMAJ6.0AE3/TR13 datasheet, SMAJ6.0AE3/TR13 pinout, SMAJ6.0AE3/TR13 application, or SMAJ6.0AE3/TR13 equivalent, key selection criteria include its DO-214AC package compatibility, sub-100 ps theoretical response time, IEC61000-4-2/4-4/4-5 compliance, and RoHS-compliant matte-tin plating - critical for high-reliability board-level ESD and surge protection design.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt device, triggering when transient voltage exceeds its 6.67 V breakdown threshold and clamping to ≤10.3 V at 48.5 A. Its low thermal resistance (15 °C/W junction-to-lead) enables effective heat dissipation during repetitive 500 W surges.
It supports fast transient suppression with <100 ps theoretical response time and maintains ≤1 µA standby leakage at 6.0 V, ensuring minimal impact on low-power circuits. The device is rated for operation from –65 °C to +150 °C and qualified per MIL-PRF-19500 JANTX screening options when prefixed with MX.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff) | 6.0 V - Maximum continuous DC or RMS voltage the device blocks without conduction. |
| VBR (Min @ IBR) | 6.67 V @ 10 mA - Guaranteed breakdown initiation point, defining precise overvoltage trip threshold. |
| VC @ IPP | 10.3 V @ 48.5 A - Clamped voltage during 10/1000 µs surge, limiting downstream IC stress to safe levels. |
| PPP | 500 W - Peak transient energy handling capacity, enabling robust protection against lightning-induced surges. |
| ID @ VWM | ≤800 µA - Low leakage ensures minimal power loss and no false triggering in 6 V rail applications. |
| tRESPONSE | <100 ps (theoretical) - Enables effective suppression of ESD events per IEC61000-4-2 Level 4 (15 kV air). |
| Operating Temp | –65 °C to +150 °C - Supports deployment in under-hood automotive, industrial motor drives, and outdoor telecom equipment. |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, void-free thermosetting epoxy case with C-bend leads and RoHS-compliant matte-tin plating. Cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side | Connected to protected line (e.g., 6 V supply rail); conducts surge current to cathode when VBR exceeded. |
| Cathode | Ground/Return side | Connected to system ground; provides low-impedance path for transient energy dissipation during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| 500 W peak pulse power | Enables single-device protection against IEC61000-4-5 secondary lightning surges (42 Ω source, Class 4 up to 12 V VWM). |
| RoHS-compliant "e3" suffix | Meets EU Directive 2011/65/EU with annealed matte-tin plating, compatible with lead-free reflow profiles (260 °C/10 s). |
| Tape-and-reel packaging | TR13 variant supplied in 13-inch reels (2500 pcs), optimized for automated SMT placement and traceable lot control. |
| Moisture sensitivity Level 1 | No dry pack required per IPC/JEDEC J-STD-020B - simplifies handling and eliminates bake-out prior to assembly. |
| Low clamping ratio (VC/VBR = 1.54) | Minimizes overvoltage overshoot during transients, protecting 5 V logic interfaces and USB PHYs downstream. |
Applications
| Industrial Power Input Protection | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: 6 V auxiliary power rail in PLC I/O modules exposed to inductive switching noise and load dump transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between rail and chassis ground to clamp surges before they reach LDO regulators and microcontrollers. Use Value: Limits transient voltage to ≤10.3 V, preventing latch-up or gate oxide damage in 6 V-rated analog front-end ICs and CAN transceivers. |
Use Scenario: LIN bus line protection in door module ECUs subject to ESD and battery reverse-connection events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on LIN data line, positioned upstream of LIN transceiver's input pins. Use Value: Sub-100 ps response ensures clamping occurs before ESD pulse propagates into transceiver silicon, meeting ISO 10605 330 pF/330 Ω test requirements. |
| POE-Powered Ethernet Interface | DC-DC Converter Input Stage |
|
Use Scenario: Secondary-side 6 V bias rail in IEEE 802.3af/at PD circuitry, vulnerable to induced RF and hot-swap transients. IC Role / Device Role / Timing Role: Rail-to-ground TVS suppressing common-mode surges coupled onto isolated 6 V output from PoE controller ICs. Use Value: 500 W rating handles multiple 10/1000 µs surges without degradation, maintaining long-term reliability in field-deployed access points. |
Use Scenario: Input protection for 6 V-output buck converter supplying FPGA configuration memory in industrial controllers. IC Role / Device Role / Timing Role: Front-end clamping device on converter input, absorbing flyback spikes from upstream relay or solenoid drivers. Use Value: 10.3 V clamping voltage ensures converter IC's absolute maximum input rating (typically 12–16 V) is never exceeded during 48.5 A transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMCJ6.0A | Higher 1500 W peak power, larger DO-214AB package (7.11 mm x 6.22 mm vs. SMAJ's 4.5 mm x 2.79 mm). | Used where higher surge margin is required (e.g., AC mains input stages), not suitable for space-constrained 6 V logic rails. | Select SMAJ6.0AE3/TR13 for compact PCB layouts requiring 500 W protection; choose SMCJ6.0A only if >1 kA surge immunity is mandated. |
| SMBJ6.0A | Same DO-214AA package but lower 600 W rating; clamps at 10.5 V @ 47.6 A - marginally higher VC and tighter thermal derating. | Common in consumer-grade designs; lacks optional avionics screening (MA prefix) and MIL-PRF-19500 JANTX qualification path. | SMAJ6.0AE3/TR13 offers superior thermal performance (15 °C/W vs. SMBJ's ~20 °C/W) and broader qualification support for industrial/military use. |
Compared with SMCJ6.0A and SMBJ6.0A, the SMAJ6.0AE3/TR13 delivers optimal balance of compact DO-214AC footprint, 500 W capability, and extended qualification options - making it preferred for space-limited, high-reliability 6 V rail protection where thermal management and standards compliance are critical.
Availability
SMAJ6.0AE3/TR13 is available at Aetrix Electronics and suitable for industrial power input protection, automotive body control modules, PoE-powered Ethernet interfaces, and DC-DC converter input stages requiring stable component supply and full RoHS compliance.
Supply support for SMAJ6.0AE3/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 developed specifically for surface-mount transient suppression in space- and thermal-constrained environments, targeting applications demanding fast response, high surge tolerance, and extended temperature operation.
FAQ
What is the clamping voltage of SMAJ6.0AE3/TR13 at its rated peak pulse current?
The SMAJ6.0AE3/TR13 has a maximum clamping voltage (VC) of 10.3 V at 48.5 A peak pulse current (IPP) under the standard 10/1000 µs waveform. This value is guaranteed across temperature and ensures downstream 6 V logic ICs remain within safe operating limits during transient events.
Is SMAJ6.0AE3/TR13 unidirectional or bidirectional?
SMAJ6.0AE3/TR13 is a unidirectional TVS diode, indicated by the absence of "C" or "CA" in its part number suffix. It conducts only in reverse bias above its 6.67 V breakdown voltage and must be installed with cathode toward ground - unlike bidirectional variants such as SMAJ6.0CAE3/TR13.
Does SMAJ6.0AE3/TR13 meet IEC61000-4-5 for lightning surge protection?
Yes, SMAJ6.0AE3/TR13 is certified for secondary lightning protection per IEC61000-4-5 with 42 Ω source impedance at Class 4 level (up to 12 V VWM devices). Its 500 W rating and 10.3 V clamping voltage ensure compliance when used with appropriate PCB layout and grounding practices.
What is the moisture sensitivity level (MSL) of SMAJ6.0AE3/TR13?
SMAJ6.0AE3/TR13 has a moisture sensitivity level (MSL) of Level 1 per IPC/JEDEC J-STD-020B, meaning it may be stored indefinitely at ambient conditions without dry packing or baking prior to reflow soldering - simplifying manufacturing logistics and reducing process risk.
Can SMAJ6.0AE3/TR13 replace SMAJ6.0A in existing designs?
Yes, SMAJ6.0AE3/TR13 is a direct RoHS-compliant replacement for SMAJ6.0A, sharing identical electrical specifications, DO-214AC package dimensions, and thermal characteristics. The "e3" suffix denotes matte-tin plating compatible with lead-free reflow, and "TR13" indicates 13-inch tape-and-reel packaging - both fully interchangeable in layout and function.
SMAJ6.0AE3/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):
- 6V
- Voltage - Breakdown (Min):
- 6.67V
- Voltage - Clamping (Max) @ Ipp:
- 10.3V
- Current - Peak Pulse (10/1000µs):
- 48.5A
- 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)
SMAJ6.0AE3/TR13 FAQ
1.How can I place an order for SMAJ6.0AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ6.0AE3/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 SMAJ6.0AE3/TR13 reliable?
The price and inventory of SMAJ6.0AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ6.0AE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMAJ6.0AE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ6.0AE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ6.0AE3/TR13?
SMAJ6.0AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ6.0AE3/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 SMAJ6.0AE3/TR13?
For technical support, including SMAJ6.0AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ6.0AE3/TR13 requirements.
6.How does Aetrix verify that SMAJ6.0AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMAJ6.0AE3/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 SMAJ6.0AE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMAJ6.0AE3/TR13?
All SMAJ6.0AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ6.0AE3/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 SMAJ6.0AE3/TR13 part is unused and in its original packaging.
Return procedure for SMAJ6.0AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ6.0AE3/TR13 Tags

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Diodes Incorporated

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Diodes Incorporated

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