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Vishay General Semiconductor - Diodes Division SMCJ100-E3/9AT
- Part No.:
- SMCJ100-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ100-E3/9AT.pdf
- Description:
- TVS DIODE 100VWM 179VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,657
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Product details
Overview
SMCJ100-E3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 100 V stand-off voltage (VWM), 111–123 V breakdown range (VBR), 162 V 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 safeguard MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the SMCJ100-E3/9AT datasheet, SMCJ100-E3/9AT pinout, SMCJ100-E3/9AT application, or SMCJ100-E3/9AT equivalent, key selection criteria include clamping voltage margin relative to protected circuit's absolute maximum rating, thermal resistance (RθJA = 75 °C/W), junction temperature limit (TJ max = 150 °C), and AEC-Q101 qualification status for automotive-grade reliability.
Technical Context
The SMCJ100-E3/9AT operates as a silicon avalanche diode that remains non-conductive below its 100 V stand-off voltage and rapidly clamps transients above its 111–123 V breakdown threshold. Its low incremental surge resistance ensures minimal voltage overshoot during 10/1000 µs surges up to 1500 W.
Designed for surface-mount assembly on 8.0 mm × 8.0 mm copper pads per terminal, it meets J-STD-020 MSL Level 1, supports lead-free reflow (260 °C peak), and passes JESD201 Class 1A whisker testing. The unidirectional polarity is marked by a cathode band on the DO-214AB case.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before significant leakage; defines upper limit of protected line's nominal DC voltage. |
| VBR min/max | 111 V / 123 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on without premature conduction. |
| VC @ IPPM | 162 V at 9.3 A - Clamped voltage during 10/1000 µs surge; must stay below protected device's absolute maximum rating. |
| PPPM | 1500 W - Peak transient energy handling capacity; determines survivability against IEC 61000-4-5 Level 4 surges. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on standard pad layout; used to calculate steady-state temperature rise under DC leakage. |
| TJ max | +150 °C - Maximum allowable junction temperature; sets derating envelope for high-temperature environments. |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test requirements including HTOL, TC, and HTRB. |
Pinout & Package
Package: DO-214AB (SMCJ), surface-mount, low-profile, matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Cathode identified by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path (cathode-biased during clamping) | Connected to lower-potential side of protected line; enables unidirectional clamping from cathode to anode. |
| Cathode | Clamping reference node | Connected to higher-potential side (e.g., VBUS); avalanche conduction occurs when cathode-to-anode voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable, repeatable avalanche characteristics and long-term reliability under repeated surge stress. |
| Low incremental surge resistance | Minimizes dynamic voltage overshoot during fast-rising transients, improving protection margin for sensitive downstream ICs. |
| MSL Level 1 moisture sensitivity | Enables direct placement without baking; compatible with standard SMT reflow profiles up to 260 °C peak. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules requiring extended lifetime and high-reliability operation. |
| RoHS-compliant (E3 suffix) | Meets EU Directive 2011/65/EU; contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits. |
Applications
| Automotive Power Supply Protection | Industrial DC Motor Drive Input |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs and infotainment systems from load-dump and ISO 7637-2 transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor to clamp positive-going surges. Use Value: With 162 V clamping at 9.3 A, SMCJ100-E3/9AT prevents damage to 100 V-rated DC-DC controllers and CAN transceivers during 12 V system load dump events. | Use Scenario: Safeguarding H-bridge gate drivers and microcontrollers in factory automation motor drives exposed to inductive kickback. IC Role / Device Role / Timing Role: Mounted across DC bus input terminals to absorb switching-induced voltage spikes from relay or contactor de-energization. Use Value: 1500 W PPPM rating allows reliable suppression of repetitive 10/1000 µs transients up to 9.3 A without degradation, extending system uptime. |
| Telecom PoE Interface Protection | Consumer Appliance Main Power Input |
Use Scenario: Shielding IEEE 802.3af/at Power over Ethernet (PoE) powered devices from cable-induced surges and ESD. IC Role / Device Role / Timing Role: Placed on each DC input line (PSE-side or PD-side) to clamp common-mode and differential-mode transients. Use Value: 100 V VWM aligns with 57 V nominal PoE+ (802.3at) operation, while 162 V VC provides safe margin below typical 200 V isolation barriers in PoE magnetics. | Use Scenario: Securing AC-DC adapter outputs and internal 12 V/24 V rails in smart home appliances against lightning-induced surges on mains-connected inputs. IC Role / Device Role / Timing Role: Installed after bulk capacitance on primary-side DC bus to limit overvoltage propagation to downstream SMPS controllers and sensors. Use Value: AEC-Q101 qualification and 150 °C TJ max ensure stable performance in enclosed, thermally constrained appliance enclosures operating continuously at +85 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage 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) | Not suitable for high-energy surges; limited to low-power signal lines or secondary-side protection | Select only if space-constrained and surge threat level is ≤ IEC 61000-4-5 Level 2. |
| SMCJ100AHE3/9AT | Identical electrical specs but AEC-Q101 qualified (HE3 suffix), same DO-214AB package | Same footprint and performance; intended for automotive OEM programs requiring full qualification documentation | Choose SMCJ100AHE3/9AT when full AEC-Q101 test reports and PPAP support are contractually required. |
Compared with SMAJ100A-E3/61T and SMCJ100AHE3/9AT, the SMCJ100-E3/9AT delivers optimal balance of 1500 W surge capability, thermal performance (RθJA = 75 °C/W), and commercial-grade cost-making it ideal for industrial and Tier-2 automotive applications where full AEC-Q101 documentation is not mandated but robustness is essential.
Availability
SMCJ100-E3/9AT is available at Aetrix Electronics and suitable for automotive ECU protection, industrial motor drive input stages, and telecom PoE interface circuits requiring stable component supply with consistent parametric performance across production lots.
Supply support for SMCJ100-E3/9AT 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 belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments-including automotive, industrial, and telecom infrastructure-where failure immunity and long-term stability are critical.
FAQ
What is the clamping voltage of the SMCJ100-E3/9AT and how is it measured?
The SMCJ100-E3/9AT has a maximum clamping voltage (VC) of 162 V, measured at a peak pulse current (IPPM) of 9.3 A using a standardized 10/1000 µs double-exponential waveform. This value is guaranteed per the Vishay datasheet (Document Number 88394) and reflects the voltage across the device during worst-case surge conditions-critical for verifying margin against downstream component ratings.
Is the SMCJ100-E3/9AT suitable for automotive applications?
Yes, the SMCJ100-E3/9AT is RoHS-compliant and manufactured to Vishay's commercial-grade specifications. While it shares the same DO-214AB package and electrical characteristics as AEC-Q101-qualified variants like SMCJ100AHE3/9AT, the SMCJ100-E3/9AT itself is not AEC-Q101 certified. For production automotive use, specify the HE3-suffixed version; SMCJ100-E3/9AT is appropriate for prototyping or non-safety-critical automotive subsystems.
What does the "E3/9AT" suffix indicate in SMCJ100-E3/9AT?
The "E3" suffix denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting JESD201 Class 1A whisker resistance. The "9AT" indicates packaging in 13-inch diameter plastic tape and reel, with a base quantity of 3500 units-optimized for high-volume SMT assembly lines requiring automated pick-and-place compatibility.
How does the SMCJ100-E3/9AT differ from bi-directional TVS diodes like SMCJ100CA?
The SMCJ100-E3/9AT is unidirectional and features a cathode band marking; it conducts only during positive surges relative to its anode. In contrast, SMCJ100CA is bi-directional with no polarity marking and clamps both positive and negative transients. Use SMCJ100-E3/9AT for DC rails with defined polarity; choose SMCJ100CA for AC lines or floating signal paths where bidirectional protection is needed.
What thermal derating applies to the SMCJ100-E3/9AT at elevated ambient temperatures?
The SMCJ100-E3/9AT must be derated linearly above TA = 25 °C per Figure 2 in the Vishay datasheet (88394). At 75 °C ambient, its peak pulse power (PPPM) drops to approximately 75% of 1500 W (i.e., ~1125 W), and its DC power dissipation (PD) falls from 6.5 W at 50 °C to zero at 150 °C junction temperature. Proper PCB copper area (8.0 mm × 8.0 mm per pad) is required to maintain thermal performance.
SMCJ100-E3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 179V
- Current - Peak Pulse (10/1000µs):
- 8.4A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCJ)
SMCJ100-E3/9AT FAQ
1.How can I place an order for SMCJ100-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ100-E3/9AT 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 SMCJ100-E3/9AT reliable?
The price and inventory of SMCJ100-E3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ100-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ100-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ100-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ100-E3/9AT?
SMCJ100-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ100-E3/9AT 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 SMCJ100-E3/9AT?
For technical support, including SMCJ100-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ100-E3/9AT requirements.
6.How does Aetrix verify that SMCJ100-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ100-E3/9AT 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 SMCJ100-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ100-E3/9AT?
All SMCJ100-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ100-E3/9AT, 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 SMCJ100-E3/9AT part is unused and in its original packaging.
Return procedure for SMCJ100-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ100-E3/9AT Tags
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