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Vishay General Semiconductor - Diodes Division SMCJ90CHE3/9AT
- Part No.:
- SMCJ90CHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ90CHE3/9AT.pdf
- Description:
- TVS DIODE 90VWM 160VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,796
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Product details
Overview
SMCJ90CHE3/9AT from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for robust overvoltage protection of sensitive electronics. It features a 90 V stand-off voltage (VWM), 1500 W peak pulse power (PPPM), 146 V maximum clamping voltage (VC) at 10.3 A IPPM, AEC-Q101 qualification, and RoHS compliance with matte tin-plated leads.
For engineers reviewing the SMCJ90CHE3/9AT datasheet, SMCJ90CHE3/9AT pinout, SMCJ90CHE3/9AT application, or SMCJ90CHE3/9AT equivalent, key selection criteria include clamping performance under 10/1000 µs surge, junction temperature derating above 25 °C, bi-directional symmetry for AC line or data bus protection, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
The SMCJ90CHE3/9AT operates as a bi-directional avalanche diode, exhibiting symmetrical breakdown behavior in both polarities with VBR min/max of 100 V / 111 V at 1 mA test current. Its low incremental surge resistance enables rapid clamping response to transients induced by inductive switching or ESD events.
Thermal design relies on RθJA = 75 °C/W (typ.) and RθJL = 15 °C/W (typ.), requiring careful PCB pad layout per Vishay's recommended 0.31" × 0.31" copper areas. The device is rated for TJ = –55 °C to +150 °C and meets MSL Level 1 per J-STD-020 at 260 °C peak reflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 100 V / 111 V at 1 mA - Confirmed bi-directional breakdown threshold range |
| VC @ IPPM | 146 V at 10.3 A - Clamped voltage during 10/1000 µs surge, limiting stress on downstream ICs |
| PPPM | 1500 W - Peak transient power handling capability under standardized waveform |
| ID @ VWM | 1.0 µA - Low leakage ensures minimal standby power loss in high-impedance circuits |
| TJ max. | +150 °C - Enables use in under-hood automotive or industrial environments |
| Package | DO-214AB (SMCJ) - Surface-mount outline with J-bend leads, compatible with standard SMT pick-and-place |
Pinout & Package
DO-214AB (SMCJ) package: surface-mount, bi-directional device with no polarity marking; terminals are symmetrical anode/cathode connections suitable for AC-coupled lines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Bi-directional terminals conduct equally in either polarity when V > VBR; no cathode band marking |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| Glass passivated chip junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives |
| MSL Level 1 rating | Allows unlimited floor life and exposure to 260 °C peak reflow without baking preconditioning |
| Low incremental surge resistance | Enables tighter clamping (VC/VBR ratio = 1.46) and faster energy dissipation than standard Zener TVS devices |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V CAN or LIN bus nodes from load dump and jump-start transients in passenger vehicles and commercial trucks. IC Role / Device Role / Timing Role: Bi-directional TVS placed across power rail and ground to clamp surges up to ISO 7637-2 Pulse 5a (12 V systems). Use Value: Limits voltage to ≤146 V during 10/1000 µs transients, preventing damage to transceivers and microcontrollers rated for 16 V absolute max supply. | Use Scenario: Safeguarding analog front-end inputs of pressure, temperature, or position sensors connected to PLC I/O modules. IC Role / Device Role / Timing Role: Transient suppression on sensor signal lines exposed to relay coil kickback or nearby motor switching noise. Use Value: With 1.0 µA leakage at 90 V, avoids DC offset errors in precision 4–20 mA loops while clamping fast EFT bursts per IEC 61000-4-4. |
| Telecom Data Line Surge Suppression | Consumer USB Port ESD Protection |
Use Scenario: Shielding RS-485 transceivers in base station backhaul links from lightning-induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Bi-directional TVS placed differentially across A/B lines to absorb common-mode transients without disrupting DC bias. Use Value: Symmetrical VBR (100–111 V) ensures balanced clamping on both lines, preserving signal integrity during 1 kV/10/1000 µs surges. | Use Scenario: Adding secondary-level surge protection on USB 2.0 VBUS lines in smart home hubs and set-top boxes. IC Role / Device Role / Timing Role: Standoff-rated TVS that remains non-conductive during normal 5 V operation but activates during 15 kV contact ESD per IEC 61000-4-2. Use Value: 146 V clamping voltage prevents latch-up in USB power switches while maintaining <1 µA leakage to avoid standby current drain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90CA-E3/52T | Lower PPPM (600 W), smaller SMB package (DO-214AA), same VWM/VBR/VC specs | Reduced surge margin; suited for space-constrained consumer designs with lower threat levels | Select when board area is critical and peak surge energy does not exceed 600 W |
| SMCJ90AHE3/9AT | Uni-directional variant; identical package, thermal, and surge ratings but asymmetric conduction | Requires polarity-aware placement; only appropriate for DC rails with defined ground reference | Choose only for unidirectional DC power paths where reverse conduction is undesirable |
Compared with SMCJ90CHE3/9AT, SMBJ90CA-E3/52T trades surge capacity for footprint reduction, while SMCJ90AHE3/9AT sacrifices bi-directional symmetry for DC-specific clamping-neither offers pin-compatible replacement without circuit review.
Availability
SMCJ90CHE3/9AT is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface protection, telecom data line surge suppression, and consumer USB port ESD protection requiring stable component supply across production lifecycles.
Supply support for SMCJ90CHE3/9AT 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 and automotive qualification.
The SMCJ series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of the SMCJ90CHE3/9AT under a 10/1000 µs surge?
The SMCJ90CHE3/9AT has a maximum clamping voltage (VC) of 146 V at 10.3 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and reflects worst-case conduction during surge events, ensuring downstream components see limited overvoltage stress.
Is the SMCJ90CHE3/9AT suitable for automotive applications?
Yes, the SMCJ90CHE3/9AT is AEC-Q101 qualified and explicitly rated for automotive use. Its thermal performance (TJ max. = +150 °C), MSL Level 1 reflow compatibility, and robust surge handling make it appropriate for engine control units, body electronics, and infotainment systems exposed to load dump and ISO 7637-2 transients.
Does the SMCJ90CHE3/9AT have polarity markings on the package?
No, the SMCJ90CHE3/9AT is a bi-directional TVS diode and carries no cathode band or polarity marking. Its DO-214AB (SMCJ) package features symmetrical terminals, enabling installation without orientation concern on AC-coupled or differential signal lines.
What is the leakage current specification for the SMCJ90CHE3/9AT at its stand-off voltage?
At the 90 V stand-off voltage (VWM), the SMCJ90CHE3/9AT exhibits a maximum reverse leakage current (ID) of 1.0 µA at 25 °C. This ultra-low leakage preserves signal integrity in high-impedance sensor interfaces and minimizes quiescent power loss in battery-powered systems.
How does the SMCJ90CHE3/9AT differ from the uni-directional SMCJ90AHE3/9AT?
The SMCJ90CHE3/9AT is bi-directional with symmetrical breakdown in both polarities, while the SMCJ90AHE3/9AT is uni-directional and conducts only when forward-biased relative to its marked cathode. Their packages and surge ratings match, but circuit topology must accommodate polarity awareness for the uni-directional version.
SMCJ90CHE3/9AT 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 90V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 160V
- Current - Peak Pulse (10/1000µs):
- 9.4A
- 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)
SMCJ90CHE3/9AT FAQ
1.How can I place an order for SMCJ90CHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ90CHE3/9AT 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 SMCJ90CHE3/9AT reliable?
The price and inventory of SMCJ90CHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ90CHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ90CHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ90CHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ90CHE3/9AT?
SMCJ90CHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ90CHE3/9AT 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 SMCJ90CHE3/9AT?
For technical support, including SMCJ90CHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ90CHE3/9AT requirements.
6.How does Aetrix verify that SMCJ90CHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ90CHE3/9AT 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 SMCJ90CHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ90CHE3/9AT?
All SMCJ90CHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ90CHE3/9AT, 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 SMCJ90CHE3/9AT part is unused and in its original packaging.
Return procedure for SMCJ90CHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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