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Vishay General Semiconductor - Diodes Division SMCJ58AHE3/9AT
- Part No.:
- SMCJ58AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ58AHE3/9AT.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,770
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Product details
Overview
SMCJ58AHE3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 58 V standoff voltage (VWM), 64.4–71.2 V breakdown range (VBR at 1 mA), and 1500 W peak pulse power (10/1000 µs). It clamps transients to ≤93.6 V at 16 A peak current and operates from −55 °C to +150 °C, targeting automotive power rail and industrial sensor interface protection.
For engineers reviewing the SMCJ58AHE3/9AT datasheet, SMCJ58AHE3/9AT pinout, SMCJ58AHE3/9AT application, or SMCJ58AHE3/9AT equivalent, this device is selected for robust overvoltage immunity in 12 V/24 V systems where fast response (<1 ns), low clamping ratio (1.6× VWM), and AEC-Q101 qualification are required.
Technical Context
The SMCJ58AHE3/9AT uses a glass-passivated silicon junction optimized for low incremental surge resistance and stable clamping under repetitive 10/1000 µs surges. Its unidirectional polarity features a cathode band marking and supports peak forward surge current of 200 A (8.3 ms half-sine).
Thermally, it exhibits RθJA = 75 °C/W (typ.) on standard 8 mm × 8 mm copper pads and RθJL = 15 °C/W, enabling reliable operation up to 150 °C junction temperature without forced cooling in typical PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working limit in protected circuit. |
| VBR (min/max) | 64.4 V / 71.2 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during transients. |
| VC @ IPPM | 93.6 V at 16 A - Clamped voltage under full 1500 W surge; determines maximum stress on downstream ICs. |
| PPPM | 1500 W - Peak pulse power handling (10/1000 µs waveform); enables protection against ISO 7637-2 Pulse 1/2/5a/b surges. |
| IFSM | 200 A - Non-repetitive forward surge rating (8.3 ms half-sine); supports inrush and load-dump survival in automotive power lines. |
| TJ max. | +150 °C - Maximum junction temperature; allows use in under-hood automotive environments without derating. |
| Package | SMC (DO-214AB) - Surface-mount outline with 8.13 mm × 6.22 mm footprint and 3.20 mm height; compatible with automated placement and reflow. |
Pinout & Package
SMCJ58AHE3/9AT uses the SMC (DO-214AB) package: a surface-mount, molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, and polarity indicated by a cathode band on the unidirectional device.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to lower-potential side (e.g., ground or return path) during surge conduction. |
| Cathode | Current exit terminal in forward bias; marked with band | Connected to protected line (e.g., 12 V rail); conducts surge current to ground when VAK exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics per stress test requirements. |
| 1500 W peak pulse power | Withstands high-energy transients such as ISO 16750-2 load dump (up to 120 V, 400 ms) when used with appropriate series impedance. |
| Low clamping voltage (93.6 V) | Provides 35.6 V margin above VWM, limiting stress on 100 V-rated MOSFETs or CAN transceivers in 24 V systems. |
| Fast response time (<1 ns) | Activates before sensitive logic or analog circuitry sustains damage from ESD or switching spikes. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns or baking requirements. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 12 V/24 V supply lines in ECUs against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges exceeding 58 V. Use Value: Limits peak voltage to 93.6 V during 16 A transients, preserving 100 V input-rated regulators and microcontrollers. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt fast transients before reaching op-amp or ADC inputs. Use Value: Sub-1 ns response prevents latch-up in precision signal conditioning circuits operating near 5 V or 3.3 V rails. |
| Telecom Line Interface | Motor Drive Control Signal Protection |
Use Scenario: Safeguarding RS-485 transceivers connected to long outdoor cables exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional-capable variant family member used in unidirectional configuration on VCC or termination resistors. Use Value: 1500 W rating handles induced surges up to 1 kV common-mode without degradation across 1000+ events. | Use Scenario: Guarding gate drive signals (e.g., PWM to MOSFET/IGBT) against shoot-through-inducing voltage spikes. IC Role / Device Role / Timing Role: TVS placed across gate-source terminals to clamp Miller-induced overshoot during switching transitions. Use Value: 93.6 V clamping ensures gate oxide integrity for 100 V-rated power devices while maintaining fast switching speed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58AHE3/52T | Same VWM/VBR/VC, but SMB (DO-214AA) package: smaller footprint (4.57 mm × 3.94 mm), lower PPPM = 600 W. | Lower energy handling limits use to low-power signal lines or secondary protection stages. | Select when board space is constrained and surge threat level is ≤600 W (e.g., USB or I²C lines). |
| SMCJ58CAHE3/9AT | Bidirectional version: identical VWM/VBR/PPPM, but symmetrical clamping in both polarities; no cathode marking. | Required for AC-coupled or floating signal paths (e.g., Ethernet PHY, audio lines) where polarity reversal occurs. | Choose for bidirectional protection needs; not interchangeable without circuit review due to polarity and layout differences. |
Compared with SMBJ58AHE3/52T and SMCJ58CAHE3/9AT, the SMCJ58AHE3/9AT delivers higher surge capacity in a standardized SMC footprint, making it optimal for primary protection on DC power rails where 1500 W capability and AEC-Q101 compliance are mandatory.
Availability
SMCJ58AHE3/9AT is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, telecom line protection, and motor drive signal conditioning requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ58AHE3/9AT 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, automotive qualification, and high-volume manufacturability.
The SMCJ series targets high-energy transient suppression in harsh environments, with design focus on automotive, industrial, and telecom infrastructure where AEC-Q101 validation and 1500 W surge resilience are critical.
FAQ
What is the clamping voltage of the SMCJ58AHE3/9AT at its rated peak pulse current?
The SMCJ58AHE3/9AT has a maximum clamping voltage (VC) of 93.6 V at its rated peak pulse current (IPPM) of 16 A, measured using a 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during a full 1500 W transient event and is confirmed in the Vishay datasheet revision 09-Jan-2024, page 2. The SMCJ58AHE3/9AT maintains this clamping performance across its specified operating temperature range.
Is the SMCJ58AHE3/9AT qualified for automotive applications?
Yes, the SMCJ58AHE3/9AT carries AEC-Q101 qualification, as indicated by the "HE3" suffix in its part number and confirmed in the Vishay datasheet section "Mechanical Data" and "Ordering Information". This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing, making the SMCJ58AHE3/9AT suitable for under-hood and chassis-mounted automotive electronics.
What is the standoff voltage (VWM) of the SMCJ58AHE3/9AT, and how does it relate to system voltage?
The SMCJ58AHE3/9AT has a standoff voltage (VWM) of 58 V, meaning it remains non-conductive below this DC or RMS voltage. This rating is selected to provide ≥15 % margin above nominal 48 V or 24 V automotive systems (e.g., 24 V nominal × 2.4 = 57.6 V), ensuring stable operation during normal conditions while allowing activation only during overvoltage events. The SMCJ58AHE3/9AT's VWM is verified at 25 °C with ≤1.0 µA leakage current.
Does the SMCJ58AHE3/9AT have a defined polarity, and how is it identified?
Yes, the SMCJ58AHE3/9AT is a unidirectional TVS diode with defined polarity: the cathode is marked by a visible band on the SMC (DO-214AB) package body. During surge events, current flows from anode to cathode, clamping the voltage between the protected line (connected to cathode) and ground (connected to anode). This polarity must be observed in PCB layout; reversing it would prevent proper clamping function. The SMCJ58AHE3/9AT's polarity is documented in the "Mechanical Data" and "Notes" sections of the Vishay datasheet.
What thermal resistance values apply to the SMCJ58AHE3/9AT, and how do they affect PCB layout?
The SMCJ58AHE3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal, and junction-to-lead resistance (RθJL) of 15 °C/W. These values require minimum pad area and thermal vias for sustained power dissipation; reducing pad size increases RθJA, risking thermal runaway during repeated surges. The SMCJ58AHE3/9AT's thermal specs assume JEDEC-standard mounting per Figure 2 in the Vishay datasheet.
SMCJ58AHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 93.6V
- Current - Peak Pulse (10/1000µs):
- 16A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ58AHE3/9AT FAQ
1.How can I place an order for SMCJ58AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ58AHE3/9AT 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 SMCJ58AHE3/9AT reliable?
The price and inventory of SMCJ58AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ58AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ58AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ58AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ58AHE3/9AT?
SMCJ58AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ58AHE3/9AT 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 SMCJ58AHE3/9AT?
For technical support, including SMCJ58AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ58AHE3/9AT requirements.
6.How does Aetrix verify that SMCJ58AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ58AHE3/9AT 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 SMCJ58AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ58AHE3/9AT?
All SMCJ58AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ58AHE3/9AT, 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 SMCJ58AHE3/9AT part is unused and in its original packaging.
Return procedure for SMCJ58AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ58AHE3/9AT Tags
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