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Vishay General Semiconductor - Diodes Division SMAJ60A-E3/1
- Part No.:
- SMAJ60A-E3/1
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ60A-E3/1.pdf
- Description:
- TVS DIODE 60VWM 96.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,306
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Product details
Overview
SMAJ60A-E3/1 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in DO-214AC (SMA) package, designed for clamping voltage transients on power and signal lines. It features 60 V stand-off voltage (VWM), 96.8 V maximum clamping voltage (VC) at 4.1 A peak pulse current (IPPM), 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 SMAJ60A-E3/1 datasheet, SMAJ60A-E3/1 pinout, SMAJ60A-E3/1 application, or SMAJ60A-E3/1 equivalent, this page delivers verified electrical parameters, JEDEC-compliant thermal resistance (RθJA = 120 °C/W), RoHS-compliant matte tin plating, MSL Level 1 moisture sensitivity, and precise clamping behavior under repetitive surge conditions.
Technical Context
This unidirectional TVS diode operates by avalanche breakdown above its 66.7–73.7 V breakdown voltage (VBR) at 1 mA test current, maintaining low dynamic impedance to limit transient energy. Its glass-passivated junction ensures stable leakage (<1 µA at VWM) and fast response time (<1 ns), critical for suppressing ESD and inductive switching spikes.
The device is rated for 150 °C maximum junction temperature and supports 40 A non-repetitive forward surge current (IFSM) per 8.3 ms half-sine wave. Thermal performance is defined by RθJL = 30 °C/W (junction-to-lead), enabling reliable operation on standard 0.2 × 0.2" copper pads without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 48 V DC systems. |
| VC @ IPPM | 96.8 V - Clamped voltage at 4.1 A peak pulse current; limits downstream component stress during 10/1000 µs surges. |
| PPPM | 400 W - Peak pulse power handling capability; sufficient for IEC 61000-4-5 Level 3 (1 kV/42 Ω) surge immunity. |
| IPPM | 4.1 A - Peak pulse current supported at VC; derived from 400 W / 96.8 V, confirming robust transient absorption. |
| VBR min/max | 66.7 V / 73.7 V - Breakdown voltage range at 1 mA; ensures consistent turn-on across manufacturing lot and temperature. |
| RθJA | 120 °C/W - Junction-to-ambient thermal resistance; requires ≥0.2 × 0.2" copper pad per terminal for rated power dissipation. |
| Leakage ID | <1 µA at 60 V - Ultra-low reverse leakage preserves system efficiency and prevents false triggering in high-impedance circuits. |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, single cathode-banded terminal configuration. Matte tin-plated leads meet J-STD-002 solderability and JESD201 Class 1A whisker resistance requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of protected line; enables unidirectional clamping from cathode to anode. |
| Cathode (banded end) | Avalanche breakdown node | Connected to higher-potential rail (e.g., VCC); conducts surge current to ground when VAK exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables compliance with IEC 61000-4-5 surge immunity standards up to Level 3 in compact SMA footprint. |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| MSL Level 1 (260 °C reflow) | Supports standard lead-free SMT assembly without pre-baking; compatible with automated placement and IR/reflow processes. |
| RoHS-compliant & halogen-free | Fulfills EU environmental directives and automotive supply chain requirements (per base P/N-E3 designation). |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive CMOS inputs. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of gate drivers and microcontroller I/O against inductive kickback from relay coils and solenoid loads. IC Role / Device Role / Timing Role: Unidirectional TVS placed between MCU GPIO and load return path to clamp negative transients below -0.7 V. Use Value: Prevents latch-up and permanent damage to 3.3 V/5 V logic inputs while maintaining <1 µA leakage at 24 V nominal bus voltage. |
Use Scenario: Surge suppression on LIN bus lines and sensor supply rails exposed to load dump and jump-start events. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between VBAT and ground to absorb 10/1000 µs pulses up to 400 W without degradation. Use Value: Maintains 60 V VWM margin above 14 V nominal battery, ensuring no conduction during normal operation while clamping at 96.8 V during transients. |
| Telecom Power Supplies | Consumer Appliance Control Boards |
|
Use Scenario: Input-stage protection for AC/DC adapters and PoE injectors subjected to lightning-induced surges on primary-side DC rails. IC Role / Device Role / Timing Role: Primary-side TVS placed across bulk capacitor terminals to limit overvoltage during line-to-line or line-to-ground transients. Use Value: Withstands 400 W peak power and 4.1 A IPPM, reducing need for secondary-stage MOVs and lowering BOM cost. |
Use Scenario: ESD and EFT protection for touch panel interfaces and appliance display controllers in white goods. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS on I²C/SPI data lines to suppress contact discharge (IEC 61000-4-2 ±8 kV) without signal distortion. Use Value: Sub-1 µA leakage at 60 V ensures no impact on pull-up resistor networks; fast <1 ns response prevents data corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ60AHE3/1 | AEC-Q101 qualified, high-reliability grade with enhanced whisker resistance (JESD201 Class 2) and extended lifetime testing. | Required for automotive under-hood modules where qualification to AEC-Q101 is mandatory. | Select SMAJ60AHE3/1 only when automotive-grade reliability documentation and test reports are contractually required. |
| SMCJ60A-E3/57T | DO-214AB (SMB) package, 1500 W PPPM, same VWM/VC but higher surge capacity and larger thermal mass. | Suitable for higher-energy surge environments (e.g., industrial mains input) where PCB space allows larger footprint. | Choose SMCJ60A-E3/57T when system-level surge tests exceed 400 W or when thermal derating margins must exceed 2×. |
Compared with SMAJ60A-E3/1, SMAJ60AHE3/1 adds automotive qualification at identical electrical specs and footprint, while SMCJ60A-E3/57T trades compact size for 3.75× higher surge power handling in a larger SMB package - neither is pin-compatible, but both serve overlapping protection roles with distinct mechanical and reliability trade-offs.
Availability
SMAJ60A-E3/1 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power supplies requiring stable component supply, RoHS compliance, and MSL Level 1 SMT compatibility.
Supply support for SMAJ60A-E3/1 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, and protection devices with emphasis on reliability, precision, 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 across consumer, industrial, and automotive segments.
FAQ
What is the maximum clamping voltage of SMAJ60A-E3/1 under standard test conditions?
The SMAJ60A-E3/1 has a maximum clamping voltage (VC) of 96.8 V when subjected to its rated peak pulse current of 4.1 A using a 10/1000 µs waveform. This value is measured at TA = 25 °C on 0.2 × 0.2" copper pads and represents the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is SMAJ60A-E3/1 suitable for bidirectional transient suppression?
No, SMAJ60A-E3/1 is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. It conducts only when the cathode is positive relative to the anode. For bidirectional protection, use SMAJ60CA-E3/1 (with "CA" suffix), which provides symmetrical clamping in both polarities and is marked without polarity band.
What is the standoff voltage rating of SMAJ60A-E3/1, and how does it relate to system design?
The standoff voltage (VWM) of SMAJ60A-E3/1 is 60 V - the maximum DC or continuous reverse voltage that can be applied without significant conduction. In system design, this sets the minimum margin above nominal rail voltage (e.g., 48 V systems) to avoid leakage-related power loss or false triggering, while still allowing headroom for normal operating transients.
Does SMAJ60A-E3/1 meet automotive qualification standards?
The standard SMAJ60A-E3/1 is commercial-grade and RoHS-compliant but not AEC-Q101 qualified. For automotive applications requiring qualification, specify SMAJ60AHE3/1 - the same electrical characteristics in DO-214AC package, but with high-reliability process, extended lifetime testing, and JESD201 Class 2 whisker resistance.
What is the thermal resistance specification for SMAJ60A-E3/1, and why does it matter?
SMAJ60A-E3/1 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W and junction-to-lead (RθJL) of 30 °C/W. These values determine how effectively heat from surge dissipation transfers to PCB copper and ambient air. Using the recommended 0.2 × 0.2" pad layout is essential to achieve rated 400 W pulse power without exceeding 150 °C junction temperature.
SMAJ60A-E3/1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 60V
- Voltage - Breakdown (Min):
- 66.7V
- Voltage - Clamping (Max) @ Ipp:
- 96.8V
- Current - Peak Pulse (10/1000µs):
- 4.1A
- 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)
SMAJ60A-E3/1 FAQ
1.How can I place an order for SMAJ60A-E3/1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ60A-E3/1 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 SMAJ60A-E3/1 reliable?
The price and inventory of SMAJ60A-E3/1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ60A-E3/1 is usually 5 days.
3.What payment methods are accepted for SMAJ60A-E3/1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ60A-E3/1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ60A-E3/1?
SMAJ60A-E3/1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ60A-E3/1 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 SMAJ60A-E3/1?
For technical support, including SMAJ60A-E3/1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ60A-E3/1 requirements.
6.How does Aetrix verify that SMAJ60A-E3/1 is sourced from the original manufacturer or authorized distributors?
All SMAJ60A-E3/1 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 SMAJ60A-E3/1 meets industry standards.
7.What is the process for return or replacement of SMAJ60A-E3/1?
All SMAJ60A-E3/1 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ60A-E3/1, 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 SMAJ60A-E3/1 part is unused and in its original packaging.
Return procedure for SMAJ60A-E3/1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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