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Vishay General Semiconductor - Diodes Division SMCJ100AHE3/9AT
- Part No.:
- SMCJ100AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ100AHE3/9AT.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,831
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Product details
Overview
SMCJ100AHE3/9AT from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection of DC power lines and signal paths. It features 100 V standoff voltage (VWM), 162 V maximum clamping voltage (VC) at 9.3 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform. Used to protect MOSFETs, ICs, and sensor interfaces in automotive power systems.
For engineers reviewing the SMCJ100AHE3/9AT datasheet, SMCJ100AHE3/9AT pinout, SMCJ100AHE3/9AT application, or SMCJ100AHE3/9AT equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), junction temperature range (–55 °C to +150 °C), and RoHS-compliant packaging details for robust design-in decisions.
Technical Context
The SMCJ100AHE3/9AT operates as a unidirectional avalanche-clamping device with glass-passivated junction, enabling sub-nanosecond response to transients. Its breakdown voltage (VBR) is specified at 111–123 V (min/max) with 1 mA test current, and it exhibits low incremental surge resistance for stable clamping under repetitive surges.
Designed for PCB-level protection, it meets MSL Level 1 per J-STD-020, supports lead-free reflow up to 260 °C peak, and uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Polarity is marked by cathode band; no marking on bidirectional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe DC bias margin. |
| VBR (min/max) | 111 V / 123 V - Breakdown occurs within this range at 1 mA; ensures predictable turn-on threshold. |
| VC @ IPPM | 162 V - Clamped voltage at 9.3 A peak pulse current (10/1000 µs); determines protected circuit's worst-case overvoltage. |
| PPPM | 1500 W - Peak transient energy absorption capability; enables protection against IEC 61000-4-5 Level 4 surges. |
| ID @ VWM | 1.0 µA - Reverse leakage at rated standoff voltage; negligible power loss in standby operation. |
| TJ max. | +150 °C - Maximum junction temperature; supports under-hood automotive environments without derating. |
| RθJA | 75 °C/W - Thermal resistance junction-to-ambient on standard pad layout; informs heatsinking requirements. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads. Cathode indicated by band on body; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connects to protected line; conducts surge current to ground when V > VBR. |
| Anode (unbanded end) | Reference/return path | Typically tied to system ground or low-impedance return; completes clamping loop during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan. |
| 1500 W peak pulse power | Withstands 10/1000 µs surges up to 9.3 A without degradation-sufficient for ISO 7637-2 Pulse 5a/b and IEC 61000-4-5 combinations. |
| Glass passivated junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives; improves surge life cycle count. |
| MSL Level 1 rating | Allows unlimited floor life and single reflow up to 260 °C peak-compatible with standard SMT assembly processes. |
| RoHS-compliant & halogen-free option | HE3 suffix denotes RoHS compliance; HM3 suffix adds halogen-free molding compound for stringent environmental compliance. |
Applications
| Automotive Power Distribution | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp surges exceeding 100 V. Use Value: Limits voltage to ≤162 V during 1500 W transients, preventing damage to downstream PMICs and microcontrollers. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across differential signal pair or single-ended output to ground. Use Value: Sub-nanosecond response clamps fast transients before they reach precision ADC inputs, preserving measurement integrity. |
| DC Motor Drive Gate Protection | Telecom Line Card Surge Suppression |
|
Use Scenario: Safeguarding MOSFET gate drivers from inductive kickback during motor commutation. IC Role / Device Role / Timing Role: TVS placed between gate and source to absorb negative-going spikes induced by parasitic inductance. Use Value: 162 V clamping prevents gate oxide rupture while maintaining driver timing integrity under repeated switching stress. |
Use Scenario: Front-end protection of Ethernet PHY or PoE interface against lightning-induced surges on twisted-pair lines. IC Role / Device Role / Timing Role: Paired unidirectional TVS devices on each conductor relative to chassis ground in common-mode configuration. Use Value: 1500 W rating handles telecom-grade surge waveforms (10/700 µs) without failure, meeting GR-1089-CORE requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A-E3/61T | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (110 °C/W). | Restricted to lower-energy transients; unsuitable for load dump or IEC 61000-4-5 Level 4. | Select only for space-constrained consumer designs where surge severity is limited. |
| SMCJ100CAHE3/9AT | Bidirectional variant with same VWM (100 V), identical PPPM (1500 W), but symmetrical clamping in both polarities. | Required for AC-coupled or floating signal lines where polarity reversal may occur (e.g., RS-485, CAN bus). | Choose when protecting bidirectional data lines; not interchangeable with SMCJ100AHE3/9AT due to polarity architecture. |
Compared with SMAJ100A-E3/61T, SMCJ100AHE3/9AT delivers 275 % higher surge power handling and superior thermal performance; versus SMCJ100CAHE3/9AT, it offers optimized unidirectional clamping with lower leakage and tighter VBR tolerance for DC rail protection.
Availability
SMCJ100AHE3/9AT is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and telecom infrastructure requiring stable component supply, AEC-Q101 qualification, and long-term production continuity.
Supply support for SMCJ100AHE3/9AT 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, efficiency, and application-specific optimization.
The SMCJ series targets high-energy transient suppression in harsh environments; its design prioritizes automotive-grade robustness, low clamping ratio, and compatibility with automated SMT assembly.
FAQ
What is the clamping voltage of SMCJ100AHE3/9AT at its rated peak pulse current?
The SMCJ100AHE3/9AT has a maximum clamping voltage (VC) of 162 V when subjected to its rated peak pulse current (IPPM) of 9.3 A using a 10/1000 µs waveform. This value is measured under standardized test conditions per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMCJ100AHE3/9AT maintains this clamping performance across its full operating temperature range.
Is SMCJ100AHE3/9AT qualified for automotive applications?
Yes, SMCJ100AHE3/9AT is AEC-Q101 qualified, meaning it has passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per the AEC-Q101 standard. The HE3 suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified construction. This makes the SMCJ100AHE3/9AT suitable for under-hood and chassis-mounted automotive modules where reliability under thermal and mechanical stress is critical.
What does the "9AT" suffix indicate in SMCJ100AHE3/9AT?
The "9AT" suffix in SMCJ100AHE3/9AT specifies the packaging format: 13-inch diameter plastic tape and reel, with a base quantity of 3500 units per reel. This format is optimized for high-volume automated pick-and-place assembly. The "HE3" portion confirms RoHS compliance and AEC-Q101 qualification, while "9AT" is purely a packaging and delivery code-not related to electrical or thermal performance.
How does SMCJ100AHE3/9AT differ from SMCJ100CAHE3/9AT?
The SMCJ100AHE3/9AT is unidirectional, with a cathode band indicating polarity and clamping only in reverse bias; the SMCJ100CAHE3/9AT is bidirectional, offering symmetrical clamping for both polarities and no polarity marking. Their VWM (100 V), PPPM (1500 W), and package are identical, but the unidirectional version provides lower reverse leakage (1.0 µA vs. 2.0 µA for CA variant) and is intended for DC rail protection, whereas the CA version suits AC or floating signal lines like CAN or RS-485.
What is the thermal resistance of SMCJ100AHE3/9AT, and how does it affect layout?
The SMCJ100AHE3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the minimum recommended copper pad layout (0.31" × 0.31", or 8.0 mm × 8.0 mm per terminal). This value assumes no additional heatsinking. To maintain TJ ≤ 150 °C under sustained 6.5 W power dissipation, PCB layout must provide adequate copper area and avoid thermal bottlenecks-especially important in automotive or industrial enclosures with elevated ambient temperatures.
SMCJ100AHE3/9AT 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):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 162V
- Current - Peak Pulse (10/1000µs):
- 9.3A
- 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)
SMCJ100AHE3/9AT FAQ
1.How can I place an order for SMCJ100AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ100AHE3/9AT 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 SMCJ100AHE3/9AT reliable?
The price and inventory of SMCJ100AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ100AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ100AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ100AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ100AHE3/9AT?
SMCJ100AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ100AHE3/9AT 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 SMCJ100AHE3/9AT?
For technical support, including SMCJ100AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ100AHE3/9AT requirements.
6.How does Aetrix verify that SMCJ100AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ100AHE3/9AT 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 SMCJ100AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ100AHE3/9AT?
All SMCJ100AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ100AHE3/9AT, 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 SMCJ100AHE3/9AT part is unused and in its original packaging.
Return procedure for SMCJ100AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ100AHE3/9AT Tags
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