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Vishay General Semiconductor - Diodes Division SMAJ6.0-E3/5A
- Part No.:
- SMAJ6.0-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ6.0-E3/5A.pdf
- Description:
- TVS DIODE 6VWM 11.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,272
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Product details
Overview
SMAJ6.0-E3/5A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in DO-214AC (SMA) package, designed for clamping transient overvoltages on power and signal lines. It features 6.0 V stand-off voltage (VWM), 11.4 V maximum clamping voltage (VC) at 35.1 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - suitable for protecting MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the SMAJ6.0-E3/5A datasheet, SMAJ6.0-E3/5A pinout, SMAJ6.0-E3/5A application, or SMAJ6.0-E3/5A equivalent, key selection criteria include its 6.0 V reverse stand-off capability, low 11.4 V clamping under surge, unidirectional polarity with cathode band marking, RoHS-compliant matte tin terminals, and MSL Level 1 moisture sensitivity rating.
Technical Context
This TVS diode operates as a voltage-clamping protection device that enters avalanche breakdown when transient voltage exceeds its breakdown threshold of 6.67–8.15 V (tested at 10 mA). Its glass-passivated junction ensures stable performance and fast response time (<1 ps), enabling effective suppression of ESD, lightning-induced surges, and inductive switching spikes.
The device is rated for continuous operation from –55 °C to +150 °C junction temperature, with thermal resistance of 120 °C/W (junction-to-ambient) and 30 °C/W (junction-to-lead). It supports 40 A non-repetitive forward surge current (8.3 ms half-sine) and exhibits ≤800 µA reverse leakage at VWM, ensuring minimal standby power loss in protected circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - Maximum DC or continuous reverse operating voltage before conduction begins; defines circuit's normal operating margin. |
| VBR (min/max) | 6.67 V / 8.15 V - Breakdown voltage range at 10 mA test current; ensures reliable turn-on during transients without premature conduction. |
| VC @ IPPM | 11.4 V - Clamped voltage at 35.1 A peak pulse current; determines maximum stress imposed on downstream components during surge events. |
| PPPM | 400 W - Peak pulse power handling with 10/1000 µs waveform; enables robust protection against common industrial surge waveforms. |
| IFSM | 40 A - Non-repetitive forward surge current rating (8.3 ms half-sine); supports high-energy inductive load switching events. |
| TJ Range | –55 °C to +150 °C - Operating and storage junction temperature range; suitable for under-hood automotive and industrial environments. |
| Package | DO-214AC (SMA) - Surface-mount outline with 0.208" x 0.157" footprint; compatible with automated placement and reflow soldering per J-STD-020 MSL Level 1. |
Pinout & Package
DO-214AC (SMA) package: unidirectional configuration with cathode indicated by a band on the body; two-terminal device with anode and cathode leads extending from opposite ends of the molded case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential side of protected line; enables forward surge current path during positive transients. |
| Cathode (banded end) | Current exit terminal during reverse-biased clamping | Connected to higher-potential side (e.g., VCC rail or signal line); conducts avalanche current when VIN > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable breakdown characteristics and long-term reliability under repeated surge stress without parameter drift. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving clamping precision for sensitive 3.3 V/5 V logic interfaces. |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow profiles without baking; reduces manufacturing complexity and cost. |
| RoHS-compliant matte tin plating | Meets J-STD-002 and JESD22-B102 solderability standards; eliminates lead-free assembly risks and whisker formation (JESD201 Class 1A). |
| 400 W peak pulse power (≤78 V) | Provides sufficient energy absorption for IEC 61000-4-5 Level 3 (1 kV/2 Ω) and ISO 7637-2 Pulse 1/2a/5a compliance in 12 V systems. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of gate drivers and microcontroller I/O pins against back-EMF spikes from relay and solenoid switching in PLCs and CNC controllers. IC Role / Device Role: Unidirectional TVS placed between VDD rail and ground, clamping positive transients induced by inductive loads. Use Value: Limits voltage excursion to ≤11.4 V during 35.1 A surges, preventing latch-up or permanent damage to 5 V-rated logic and MOSFET gate oxides. |
Use Scenario: Safeguarding LIN bus transceivers and sensor supply lines in door modules and seat control units exposed to battery dump and load-dump events. IC Role / Device Role: Standoff-rated TVS on 12 V supply input, absorbing up to 400 W of transient energy while maintaining <800 µA leakage at nominal voltage. Use Value: Enables compliance with ISO 7637-2 Pulse 5a (75 V/500 ms) without derating, due to 150 °C max junction temperature and robust thermal resistance. |
| Consumer Power Adapters | Telecom Interface Cards |
|
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters powering USB-C PD controllers and display interface ICs. IC Role / Device Role: Low-capacitance unidirectional clamp on 5 V output rail, activated only during fault conditions above 6.0 V. Use Value: Prevents false triggering during normal ripple (±5 %), while responding within picoseconds to fast ESD events per IEC 61000-4-2 Level 4. |
Use Scenario: Surge protection for RS-485 transceiver inputs in base station backhaul cards subjected to lightning-induced ground potential rise. IC Role / Device Role: Bidirectional-capable layout (though SMAJ6.0-E3/5A is unidirectional, used in rail-to-rail configurations with complementary devices). Use Value: Delivers 400 W pulse handling with 11.4 V clamping - critical for preserving signal integrity on differential pairs operating near 3.3 V logic thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0A-E3/5A | Lower VBR range (6.67–7.37 V), tighter tolerance; 10.3 V clamping at 38.8 A; optimized for lower-voltage precision clamping. | Better suited for 5 V systems with tight margin requirements where 11.4 V clamping may exceed downstream IC absolute maximum ratings. | Select SMAJ6.0A-E3/5A when design requires reduced clamping voltage and tighter VBR distribution - especially for 3.3 V/5 V mixed-rail protection. |
| SMBJ6.0-E3/5A | Same electrical specs but in larger DO-214AA (SMB) package; 600 W peak pulse power rating; higher thermal mass and lower RθJA (90 °C/W). | Preferred in high-reliability or thermally constrained designs where sustained surge duty cycles or elevated ambient temperatures demand greater power dissipation margin. | Choose SMBJ6.0-E3/5A when PCB layout allows larger footprint and system-level surge testing exceeds 400 W single-pulse limits - e.g., industrial UPS or solar charge controllers. |
Compared with SMAJ6.0A-E3/5A, the SMAJ6.0-E3/5A offers higher clamping voltage but broader VBR tolerance, making it more robust against process variation; versus SMBJ6.0-E3/5A, it trades power handling and thermal performance for space-constrained layouts requiring DO-214AC footprint compatibility.
Availability
SMAJ6.0-E3/5A is available at Aetrix Electronics and suitable for industrial motor drives, automotive body electronics, and consumer power adapter designs requiring stable component supply, consistent parametric performance across production lots, and full traceability to Vishay's certified manufacturing sites.
Supply support for SMAJ6.0-E3/5A 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMAJ series is engineered for surface-mount transient suppression in space-constrained, high-volume applications - balancing clamping performance, thermal robustness, and manufacturability for automotive, industrial, and computing markets.
FAQ
What is the breakdown voltage range of the SMAJ6.0-E3/5A?
The SMAJ6.0-E3/5A has a specified breakdown voltage (VBR) range of 6.67 V to 8.15 V at 10 mA test current, per Vishay Document Number 88390. This range ensures reliable avalanche conduction onset during overvoltage events while avoiding false triggering under normal 6.0 V operating conditions. The SMAJ6.0-E3/5A maintains this specification across its qualified temperature range and lifetime.
Is the SMAJ6.0-E3/5A unidirectional or bidirectional?
The SMAJ6.0-E3/5A is a unidirectional Transient Voltage Suppressor, as confirmed by its part number suffix and Vishay's ordering nomenclature - "SMAJ6.0" denotes unidirectional, whereas "SMAJ6.0C" or "SMAJ6.0CA" would indicate bidirectional variants. Its cathode is marked by a band on the DO-214AC package body, and it conducts only in reverse bias during clamping.
What is the maximum clamping voltage of the SMAJ6.0-E3/5A at its rated peak pulse current?
The SMAJ6.0-E3/5A exhibits a maximum clamping voltage (VC) of 11.4 V at its rated peak pulse current (IPPM) of 35.1 A, measured with a 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case surge events and is critical for ensuring downstream ICs remain within their absolute maximum ratings.
Does the SMAJ6.0-E3/5A meet RoHS and automotive qualification standards?
The SMAJ6.0-E3/5A is RoHS 2002/95/EC compliant and uses matte tin-plated leads qualified to JESD22-B102 and J-STD-002. However, it carries the "E3" suffix (commercial grade), not "HE3", meaning it is not AEC-Q101 qualified. For automotive applications, the SMAJ6.0HE3/5A variant must be selected instead.
What is the thermal resistance of the SMAJ6.0-E3/5A, and how does it affect PCB layout?
The SMAJ6.0-E3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W and junction-to-lead (RθJL) of 30 °C/W, per Vishay's thermal characteristics table. To maintain safe junction temperatures under repetitive surges, PCB layout must use minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal - as specified in the datasheet's derating curves and mounting recommendations for the SMAJ6.0-E3/5A.
SMAJ6.0-E3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6V
- Voltage - Breakdown (Min):
- 6.67V
- Voltage - Clamping (Max) @ Ipp:
- 11.4V
- Current - Peak Pulse (10/1000µs):
- 35.1A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMAJ6.0-E3/5A FAQ
1.How can I place an order for SMAJ6.0-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ6.0-E3/5A 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 SMAJ6.0-E3/5A reliable?
The price and inventory of SMAJ6.0-E3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ6.0-E3/5A is usually 5 days.
3.What payment methods are accepted for SMAJ6.0-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ6.0-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ6.0-E3/5A?
SMAJ6.0-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ6.0-E3/5A 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 SMAJ6.0-E3/5A?
For technical support, including SMAJ6.0-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ6.0-E3/5A requirements.
6.How does Aetrix verify that SMAJ6.0-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMAJ6.0-E3/5A 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 SMAJ6.0-E3/5A meets industry standards.
7.What is the process for return or replacement of SMAJ6.0-E3/5A?
All SMAJ6.0-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ6.0-E3/5A, 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 SMAJ6.0-E3/5A part is unused and in its original packaging.
Return procedure for SMAJ6.0-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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