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Vishay General Semiconductor - Diodes Division SMCJ5.0AHE3/9AT
- Part No.:
- SMCJ5.0AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ5.0AHE3/9AT.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,797
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Product details
Overview
SMCJ5.0AHE3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of DC power rails and signal lines. It features 5.0 V stand-off voltage (VWM), 6.40–7.07 V breakdown voltage (VBR) at 10 mA, 1500 W peak pulse power (PPPM), 163 A peak pulse current (IPPM), and clamps to ≤9.2 V at rated surge. It is widely used in automotive ECUs and industrial sensor interfaces where ESD and load-dump transients must be suppressed without disrupting normal operation.
For engineers reviewing the SMCJ5.0AHE3/9AT datasheet, SMCJ5.0AHE3/9AT pinout, SMCJ5.0AHE3/9AT application, or SMCJ5.0AHE3/9AT equivalent, key selection criteria include its AEC-Q101 qualification, low clamping voltage (VC ≤ 9.2 V), 1000 µA max reverse leakage at VWM, 0.057 %/°C VBR temperature coefficient, and compatibility with automated SMT placement on standard 8.0 mm × 8.0 mm copper pads.
Technical Context
The SMCJ5.0AHE3/9AT operates as a silicon avalanche diode that remains high-impedance below VWM = 5.0 V and rapidly transitions to low-impedance conduction above VBR (min 6.40 V) to shunt transient energy. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
It is rated for 1500 W peak pulse power per 10/1000 µs waveform, with thermal resistance RθJA = 75 °C/W and RθJL = 15 °C/W, enabling effective heat dissipation in compact PCB layouts. The device meets MSL Level 1 per J-STD-020 and supports lead-free reflow up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin. |
| VBR (min/max) | 6.40 V / 7.07 V at IT = 10 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC @ IPPM | ≤9.2 V at IPPM = 163 A - Clamping voltage under full-rated surge; determines protected circuit's maximum transient exposure. |
| PPPM | 1500 W - Peak pulse power handling per 10/1000 µs waveform; quantifies single-event surge robustness. |
| ID @ VWM | ≤1000 µA - Reverse leakage at stand-off voltage; impacts quiescent power loss and signal integrity in high-impedance nodes. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive and industrial environments. |
| Package | SMC (DO-214AB) - Surface-mount outline with 8.0 mm × 8.0 mm thermal pad footprint; optimized for automated assembly and thermal performance. |
Pinout & Package
SMCJ5.0AHE3/9AT uses the SMC (DO-214AB) package: a surface-mount, molded plastic case with two leads and a cathode band marking. The package measures 7.11 mm × 6.22 mm × 2.62 mm (L × W × H), features matte tin-plated leads compliant with J-STD-002, and is rated UL 94 V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to lower-potential side of protected line. | Defines polarity-sensitive placement: Anode ties to ground or return path in unidirectional configuration. |
| Cathode | Current exit terminal in forward bias; marked by band; connected to higher-potential side (e.g., VBUS). | Ensures correct orientation for clamping transients from positive-going surges toward ground. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD; supports under-hood and ECU deployment. |
| Glass passivated junction | Provides stable VBR tolerance and low leakage drift over temperature and lifetime; improves surge endurance consistency. |
| Low incremental surge resistance | Enables tight VC-VBR margin (ΔV = 4.2 V), minimizing voltage overshoot during fast transients like ISO 7637-2 Pulse 1/2a. |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow without baking; simplifies manufacturing logistics for high-volume SMT lines. |
| RoHS-compliant & halogen-free option | HE3 suffix denotes RoHS compliance; HM3 variant adds halogen-free molding compound for strict environmental compliance programs. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load-dump transients (up to 35 V, 100 ms) on 5 V microcontroller supply rails in body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VCC and GND, clamping surges before they reach LDO input or MCU VDD pins. Use Value: Limits voltage excursion to ≤9.2 V during 1500 W surge events, preventing latch-up or permanent damage to 5 V logic devices. | Use Scenario: Protecting analog output lines (e.g., 4–20 mA transmitter) from ESD and inductive switching noise in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: TVS mounted at connector entry point, shunting fast transients (<1 ns rise time) before reaching precision DAC or op-amp inputs. Use Value: Maintains signal integrity with <1000 µA leakage at 5.0 V, while clamping ±15 kV contact ESD per IEC 61000-4-2 to safe levels. |
| Consumer USB Port Protection | Telecom DC Power Input Protection |
Use Scenario: Safeguarding USB 2.0 VBUS line against hot-plug surges and cable-induced transients in portable docking stations. IC Role / Device Role / Timing Role: Unidirectional TVS placed inline with VBUS, referenced to system ground, absorbing 10/1000 µs surges from faulty chargers. Use Value: Achieves sub-10 ns response time and clamps to ≤9.2 V, preserving USB enumeration and preventing port controller reset. | Use Scenario: Guarding -48 V telecom power feed inputs against lightning-induced surges and AC-line coupling in remote radio units. IC Role / Device Role / Timing Role: Used in series with upstream fuse and parallel with bulk capacitor to clamp differential-mode transients on primary DC input. Use Value: Handles 1500 W pulses without degradation, supporting GR-1089-CORE Level 3 surge immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A-E3/61T | Lower PPPM (400 W), smaller SMA (DO-214AC) package, same VWM/VBR range. | Suitable for space-constrained consumer boards but not automotive-grade surge levels. | Select when board area is critical and surge threat level is limited to IEC 61000-4-5 Level 2. |
| SMCJ5.0CAHE3/9AT | Bidirectional version; identical VWM/VBR specs but symmetrical clamping for AC or dual-polarity rails. | Required for protecting differential signal pairs (e.g., RS-485) or AC-coupled interfaces. | Choose only if bidirectional clamping is needed; unidirectional SMCJ5.0AHE3/9AT offers lower cost and simpler layout for DC rails. |
Compared with SMAJ5.0A-E3/61T, SMCJ5.0AHE3/9AT delivers 3.75× higher surge power handling and automotive qualification; versus SMCJ5.0CAHE3/9AT, it provides optimized unidirectional clamping with no redundancy for DC applications-reducing BOM cost and PCB real estate.
Availability
SMCJ5.0AHE3/9AT is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, consumer USB power delivery systems, and telecom DC input protection requiring stable component supply across extended production lifecycles.
Supply support for SMCJ5.0AHE3/9AT 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, ruggedness, and automotive-grade validation.
The SMCJ series was developed specifically for high-energy transient suppression in harsh environments-targeting automotive, industrial, and telecom applications demanding AEC-Q101 qualification and 1500 W surge capability in compact SMC packages.
FAQ
What is the clamping voltage of the SMCJ5.0AHE3/9AT under full-rated surge conditions?
The SMCJ5.0AHE3/9AT clamps to a maximum of 9.2 V when subjected to its rated 163 A peak pulse current (IPPM) using a 10/1000 µs waveform. This value is measured and guaranteed per Vishay's datasheet (Document Number: 88394, Rev. 09-Jan-2024), and represents the upper limit of voltage seen by downstream circuitry during worst-case transient events. Designers use this VC value to verify margin against IC absolute maximum ratings.
Is the SMCJ5.0AHE3/9AT suitable for automotive applications?
Yes, the SMCJ5.0AHE3/9AT is AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code suffix "HE3". It undergoes rigorous stress testing-including high-temperature operating life, temperature cycling, and ESD-to meet automotive reliability standards. Its +150 °C TJ max., MSL Level 1 rating, and 1500 W surge capability make it appropriate for engine control units, ADAS sensors, and body electronics where load-dump and jump-start transients occur.
How does the SMCJ5.0AHE3/9AT differ from the bidirectional SMCJ5.0CAHE3/9AT?
The SMCJ5.0AHE3/9AT is unidirectional and features a cathode band for polarity-specific placement, while the SMCJ5.0CAHE3/9AT is bidirectional with no polarity marking and symmetrical clamping in both directions. Both share identical VWM (5.0 V), VBR (6.40–7.07 V), and PPPM (1500 W), but the unidirectional version offers lower cost and simpler layout for DC rail protection. Use SMCJ5.0AHE3/9AT for VBUS/GND or signal-to-ground protection; choose the CA variant only for AC-coupled or differential lines.
What is the thermal resistance and recommended pad layout for the SMCJ5.0AHE3/9AT?
The SMCJ5.0AHE3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead (RθJL) of 15 °C/W, measured on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. Vishay specifies this pad size as the minimum recommended layout for achieving rated PPPM and thermal performance. Reducing pad area degrades surge capability and increases junction temperature during repeated events.
Does the SMCJ5.0AHE3/9AT have RoHS and halogen-free compliance?
Yes, the "HE3" suffix in SMCJ5.0AHE3/9AT indicates RoHS-compliant construction per EU Directive 2011/65/EU. It is not halogen-free by default; for halogen-free compliance, the "HM3" variant (e.g., SMCJ5.0AHM3/9AT) must be selected. Both HE3 and HM3 versions meet JESD 201 Class 2 whisker resistance and are rated UL 94 V-0 for flammability.
SMCJ5.0AHE3/9AT 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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 163A
- 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)
SMCJ5.0AHE3/9AT FAQ
1.How can I place an order for SMCJ5.0AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ5.0AHE3/9AT 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 SMCJ5.0AHE3/9AT reliable?
The price and inventory of SMCJ5.0AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ5.0AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ5.0AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ5.0AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ5.0AHE3/9AT?
SMCJ5.0AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ5.0AHE3/9AT 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 SMCJ5.0AHE3/9AT?
For technical support, including SMCJ5.0AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ5.0AHE3/9AT requirements.
6.How does Aetrix verify that SMCJ5.0AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ5.0AHE3/9AT 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 SMCJ5.0AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ5.0AHE3/9AT?
All SMCJ5.0AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ5.0AHE3/9AT, 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 SMCJ5.0AHE3/9AT part is unused and in its original packaging.
Return procedure for SMCJ5.0AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ5.0AHE3/9AT Tags
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