My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCJ90C-E3/9AT
- Part No.:
- SMCJ90C-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ90C-E3/9AT.pdf
- Description:
- TVS DIODE 90VWM 160VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,739
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ90C-E3/9AT from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for clamping voltage transients on signal/power lines. It features 90 V stand-off voltage (VWM), 146 V maximum clamping voltage (VC) at 10.3 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform - used to protect automotive sensor interfaces, industrial I/O ports, and telecom line cards against ESD and inductive switching surges.
For engineers reviewing the SMCJ90C-E3/9AT datasheet, SMCJ90C-E3/9AT pinout, SMCJ90C-E3/9AT application, or SMCJ90C-E3/9AT equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, RoHS-compliant matte tin terminations, MSL Level 1 rating, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This bi-directional TVS diode operates symmetrically across both polarities, with breakdown voltage (VBR) specified at 100–111 V (min/max) under 1 mA test current, and reverse leakage (ID) ≤1.0 μA at 90 V stand-off. Its low incremental surge resistance enables fast clamping response (<1 ns) to transient events such as ISO 7637-2 load dump or IEC 61000-4-5 surge pulses.
The device is thermally rated for junction temperatures from –55 °C to +150 °C, with thermal resistance junction-to-lead (RθJL) of 15 °C/W and junction-to-ambient (RθJA) of 75 °C/W on recommended pad layout. It meets UL 497B recognition (QVGQ2) and is qualified to AEC-Q101 for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuitry. |
| VBR (min/max) | 100 V / 111 V at IT = 1 mA - Ensures reliable turn-on within defined tolerance band during overvoltage events. |
| VC @ IPPM | 146 V at 10.3 A - Clamped voltage seen by downstream components during 10/1000 μs surge; limits stress on ICs/MOSFETs. |
| PPPM | 1500 W - Peak transient energy handling capacity; supports robust protection against high-energy transients. |
| ID @ VWM | ≤1.0 μA - Ultra-low leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ max. | +150 °C - Enables operation in under-hood automotive or industrial environments without derating. |
| Package | DO-214AB (SMCJ) - Surface-mount outline optimized for automated placement and thermal dissipation via copper pad heatsinking. |
Pinout & Package
SMCJ90C-E3/9AT uses a two-terminal DO-214AB (SMCJ) package with no polarity marking - consistent with bi-directional functionality. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 1A whisker test requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bi-directional transient conduction path | Both terminals function identically; clamps voltage surges regardless of polarity - ideal for AC-coupled or floating signal lines. |
| Case (cathode band absent) | Mechanical mounting surface | No cathode identification; requires no orientation during placement - simplifies pick-and-place programming and reduces assembly errors. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - suitable for engine control units and ADAS sensors. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns - eliminates bake-out requirement pre-assembly. |
| Glass passivated junction | Enhances long-term stability and reduces parameter drift under thermal stress or humidity exposure - critical for industrial field deployments. |
| UL 497B recognition (QVGQ2) | Meets Underwriters Laboratories requirements for telecom/data line protectors - supports compliance in certified communication equipment designs. |
| Low-profile DO-214AB footprint | Enables high-density PCB layouts while maintaining ≥1.52 mm creepage/clearance - satisfies IEC 61000-4-5 enhanced surge immunity requirements. |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional clamping element placed directly at connector interface to shunt surge energy before reaching sensitive ASICs. Use Value: Limits transient voltage to ≤146 V during 10/1000 μs surges up to 1500 W - prevents latch-up or gate oxide damage in 5 V/12 V sensor signal chains. |
Use Scenario: Safeguarding programmable logic controller (PLC) digital input modules against induced surges from relay coil switching or motor drive noise. IC Role / Device Role / Timing Role: Primary front-end transient suppressor on 24 V DC input lines, mounted adjacent to terminal block entry points. Use Value: Withstands repetitive 10.3 A surges while maintaining <1.0 μA leakage at 90 V - ensures stable logic thresholds and avoids false triggering in noisy factory environments. |
| Telecom Line Card Protection | Consumer Power Adapter Interface |
Use Scenario: Shielding Ethernet PHY interfaces and PoE injectors from lightning-induced surges and ESD events in network edge devices. IC Role / Device Role / Timing Role: Secondary-level protector after gas discharge tube (GDT), providing low-clamp refinement for fast-rising transients. Use Value: 146 V clamping voltage ensures compliance with IEC 61000-4-5 Level 4 (4 kV) when combined with upstream GDT - protects 100BASE-TX magnetics and PHY ICs. |
Use Scenario: Guarding USB-C PD port VBUS lines and auxiliary signal pins against ESD and hot-plug transients in portable chargers and docking stations. IC Role / Device Role / Timing Role: Bi-directional TVS placed between connector and power switch FET to clamp both forward and reverse polarity faults. Use Value: 1500 W peak power rating handles multiple 8 kV contact ESD strikes per IEC 61000-4-2 without degradation - extends product lifecycle in consumer use cases. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC90C.TCT | Same DO-214AB package, 90 V VWM, but lower PPPM (1000 W) and higher VC (150 V at 9.5 A); not AEC-Q101 qualified. | Limited to commercial-grade industrial or consumer applications where automotive reliability is not required. | Select SAC90C.TCT only if cost sensitivity outweighs need for AEC-Q101 validation and higher surge margin. |
| 1.5KE91CA | Through-hole DO-15 package, same 90 V VWM and 146 V VC, but lower thermal performance (RθJA ≈ 100 °C/W) and no MSL rating. | Suitable for prototyping or legacy through-hole designs; incompatible with automated SMT production. | Choose 1.5KE91CA only for manual assembly or retrofit scenarios where board real estate and reflow compatibility are secondary concerns. |
Compared with SAC90C.TCT and 1.5KE91CA, SMCJ90C-E3/9AT delivers superior surge robustness (1500 W vs. 1000 W/1500 W), guaranteed AEC-Q101 qualification, and full SMT process support - making it the preferred choice for volume automotive and industrial production requiring zero rework risk and long-term supply continuity.
Availability
SMCJ90C-E3/9AT is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O protection, and telecom line card development requiring stable component supply, AEC-Q101 traceability, and RoHS-compliant manufacturing.
Supply support for SMCJ90C-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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The SMCJ series was engineered specifically for high-energy transient suppression in harsh environments - emphasizing AEC-Q101 qualification, low clamping voltage, and robust thermal performance in compact surface-mount packages.
FAQ
What is the clamping voltage of SMCJ90C-E3/9AT under a 10/1000 μs surge?
The SMCJ90C-E3/9AT exhibits a maximum clamping voltage (VC) of 146 V when subjected to its rated peak pulse current of 10.3 A using a 10/1000 μs waveform. This value is measured per JEDEC standards and confirmed in Vishay's datasheet revision 11-Dec-12, ensuring predictable overvoltage limiting for downstream ICs. The SMCJ90C-E3/9AT maintains this clamping performance across its full operating temperature range.
Is SMCJ90C-E3/9AT suitable for automotive applications?
Yes, SMCJ90C-E3/9AT is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its –55 °C to +150 °C operating junction temperature range, MSL Level 1 reflow compatibility, and UL 497B recognition make it appropriate for engine control units, ADAS sensor interfaces, and body electronics. The SMCJ90C-E3/9AT meets all stress-test requirements defined in the AEC-Q101 standard.
Does SMCJ90C-E3/9AT have polarity markings on the package?
No, SMCJ90C-E3/9AT has no polarity marking - consistent with its bi-directional functionality. Unlike uni-directional variants (e.g., SMCJ90A), the "C" suffix indicates symmetrical clamping behavior, and the DO-214AB case lacks a cathode band. This allows blind placement during automated assembly and eliminates orientation-related assembly errors in SMCJ90C-E3/9AT deployment.
What is the maximum reverse leakage current for SMCJ90C-E3/9AT at its rated stand-off voltage?
The SMCJ90C-E3/9AT specifies a maximum reverse leakage current (ID) of 1.0 μA at its 90 V stand-off voltage (VWM), measured at 25 °C. This ultra-low leakage preserves signal integrity in high-impedance sensing circuits and minimizes standby power loss in battery-powered systems. The SMCJ90C-E3/9AT maintains leakage below 5.0 μA even at +125 °C junction temperature.
How does the thermal resistance of SMCJ90C-E3/9AT affect PCB layout?
The SMCJ90C-E3/9AT has a typical junction-to-lead thermal resistance (RθJL) of 15 °C/W and junction-to-ambient (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal. To achieve rated power dissipation, PCB layout must replicate this minimum pad area - undersized pads will cause excessive junction temperature rise and premature failure during repeated surges. The SMCJ90C-E3/9AT datasheet provides exact dimensional guidance in Figure 4.
SMCJ90C-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:
- -
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ90C-E3/9AT FAQ
1.How can I place an order for SMCJ90C-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ90C-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 SMCJ90C-E3/9AT reliable?
The price and inventory of SMCJ90C-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 SMCJ90C-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ90C-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ90C-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ90C-E3/9AT?
SMCJ90C-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ90C-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 SMCJ90C-E3/9AT?
For technical support, including SMCJ90C-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ90C-E3/9AT requirements.
6.How does Aetrix verify that SMCJ90C-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ90C-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 SMCJ90C-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ90C-E3/9AT?
All SMCJ90C-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ90C-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 SMCJ90C-E3/9AT part is unused and in its original packaging.
Return procedure for SMCJ90C-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ90C-E3/9AT Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
