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Vishay General Semiconductor - Diodes Division SMCJ90CA-E3/57T
- Part No.:
- SMCJ90CA-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ90CA-E3/57T.pdf
- Description:
- TVS DIODE 90VWM 146VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,040
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Product details
Overview
SMCJ90CA-E3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 90 V standoff voltage (VWM), 146 V maximum clamping voltage at 10.3 A peak pulse current (10/1000 μs), and 1500 W peak pulse power dissipation - deployed in automotive sensor interfaces and industrial I/O modules.
For engineers reviewing the SMCJ90CA-E3/57T datasheet, SMCJ90CA-E3/57T pinout, SMCJ90CA-E3/57T application, or SMCJ90CA-E3/57T equivalent, key selection criteria include bidirectional clamping symmetry, low incremental surge resistance, AEC-Q101 qualification eligibility, and compatibility with automated SMT placement on 8 mm × 8 mm copper pads.
Technical Context
The SMCJ90CA-E3/57T operates as a silicon avalanche diode with symmetrical breakdown in both polarities, enabling protection against voltage transients regardless of polarity - critical for AC-coupled or floating signal paths. Its glass-passivated junction ensures stable leakage (<1.0 μA at 90 V) and repeatable clamping performance across temperature (-55 °C to +150 °C).
Designed for unclamped inductive switching events (e.g., relay coils, solenoids), it responds in <1.0 ns and maintains low dynamic impedance under 10/1000 μs surges. Thermal resistance is 75 °C/W (junction-to-ambient) on standard PCB pads, supporting reliable operation without heatsinking in ambient temperatures up to 85 °C.
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 1 mA - Confirmed bidirectional breakdown threshold; ensures symmetric triggering in either polarity. |
| VC @ IPPM | 146 V at 10.3 A - Clamped voltage during 10/1000 μs surge; determines maximum stress imposed on downstream ICs. |
| PPPM | 1500 W - Peak pulse power handling capability; supports high-energy transients like ISO 7637-2 Pulse 5a. |
| ID @ VWM | ≤1.0 μA - Reverse leakage at rated standoff; negligible loading on high-impedance sensor bias networks. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive environments. |
| Package | SMC (DO-214AB) - Surface-mount outline with 7.75 mm × 6.22 mm footprint; compatible with IPC-7351B standard land patterns. |
Pinout & Package
SMCJ90CA-E3/57T uses the SMC (DO-214AB) package: a molded plastic case with two coplanar matte tin-plated leads, no polarity marking (bidirectional), and UL 94 V-0 flammability rating. Mounting requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal per Vishay's thermal derating guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Accepts surge current during negative-going transients; forms one side of symmetrical clamping path. |
| Cathode | Transient current entry (positive polarity) | Accepts surge current during positive-going transients; completes bidirectional clamping loop with anode. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR min/max (100 V / 111 V) and VC (146 V) in both directions - eliminates need for polarity-aware layout in AC or differential lines. |
| Low clamping ratio | VC/VWM = 1.62 - tight clamping margin preserves margin between protected IC's absolute maximum rating and clamped voltage. |
| AEC-Q101 readiness | E3 suffix denotes RoHS-compliant commercial grade; HE3 variant available for full AEC-Q101 qualification - supports automotive qualification pathways. |
| Automated placement support | Low-profile SMC package with J-STD-002 solderable leads - compatible with standard pick-and-place machines and reflow profiles (peak 260 °C, MSL Level 1). |
| High surge robustness | 1500 W PPPM with 10/1000 μs waveform - withstands repetitive load dump and inductive kick events common in 12 V/24 V vehicle systems. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN transceiver inputs and analog sensor outputs (e.g., pressure, temperature) from battery load dump and ESD in engine control units. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector interface to shunt transients before reaching sensitive analog front-end or CAN PHY. Use Value: Limits voltage excursion to ≤146 V during 10/1000 μs surges, preserving integrity of 5 V or 3.3 V rail-referenced sensors and communication ICs. | Use Scenario: Safeguarding digital input cards in programmable logic controllers exposed to field wiring transients from motor contactors and solenoid valves. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels, mounted adjacent to terminal block to intercept surges before optocoupler or level-shifter inputs. Use Value: Withstands ≥1000 surges at rated PPPM without parameter shift, ensuring long-term reliability in factory automation environments. |
| Telecom Power Rail Protection | Consumer Appliance Motor Control |
Use Scenario: Guarding 48 V PoE-powered Ethernet switch ports against lightning-induced surges and hot-swap transients. IC Role / Device Role / Timing Role: Secondary-level TVS on DC input stage, coordinated with upstream GDT or MOV to handle residual energy after coarse suppression. Use Value: Fast <1 ns response captures high-frequency components missed by slower protectors, reducing risk of latch-up in PMICs and Ethernet PHYs. | Use Scenario: Shielding microcontroller GPIOs and gate drivers in washing machine motor inverters from back-EMF spikes generated by BLDC commutation. IC Role / Device Role / Timing Role: Localized clamp at motor driver IC supply pins and feedback sensing nodes to prevent false triggering or latch-up. Use Value: 1500 W PPPM rating absorbs multiple commutation spikes per cycle without degradation, extending system MTBF in high-duty-cycle appliances. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC90CA | Same VWM (90 V), lower PPPM (1000 W), smaller SMA package (DO-214AC) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a compliance | Select when board space is constrained and surge energy is ≤1000 W. |
| SMCJ90CAHM3/57T | Identical electrical specs; halogen-free, RoHS-compliant, AEC-Q101 qualified variant | Required for automotive production programs mandating halogen-free materials and automotive qualification | Choose for Tier 1 automotive designs requiring documented AEC-Q101 test reports. |
Compared with SAC90CA and SMCJ90CAHM3/57T, the SMCJ90CA-E3/57T offers optimal balance of 1500 W surge capacity, SMC package thermal performance, and commercial-grade cost - making it preferred for industrial and non-AEC automotive applications where halogen-free is not mandated.
Availability
SMCJ90CA-E3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom power rails, and consumer appliance motor controls requiring stable component supply and consistent surge performance.
Supply support for SMCJ90CA-E3/57T 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, power efficiency, and automotive-grade qualification.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure applications demanding AEC-Q101 readiness and repeatable clamping behavior.
FAQ
What is the clamping voltage of SMCJ90CA-E3/57T at its rated peak pulse current?
The SMCJ90CA-E3/57T has a maximum clamping voltage (VC) of 146 V at 10.3 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured across both terminals during surge events and reflects the actual voltage seen by protected circuitry - critical for verifying margin against downstream IC absolute maximum ratings. The SMCJ90CA-E3/57T maintains this clamping performance bidirectionally.
Is SMCJ90CA-E3/57T suitable for automotive applications?
Yes, the SMCJ90CA-E3/57T is designed for automotive environments: it operates from -55 °C to +150 °C, meets MSL Level 1, and uses RoHS-compliant materials. While the E3 suffix denotes commercial-grade qualification, the identical HE3 variant (e.g., SMCJ90CAHE3_A) is AEC-Q101 qualified - allowing direct migration to production automotive programs. The SMCJ90CA-E3/57T itself is widely used in non-safety-critical automotive subsystems such as body control modules and infotainment power rails.
How does the bidirectional design of SMCJ90CA-E3/57T affect its PCB layout?
The SMCJ90CA-E3/57T has no polarity marking and identical electrical characteristics in both directions, so PCB layout requires no orientation alignment - simplifying placement and eliminating risk of reverse installation. Its SMC (DO-214AB) package uses two symmetric terminals (anode/cathode), and the recommended 8.0 mm × 8.0 mm copper pad per terminal ensures thermal stability during repeated surges. This symmetry makes the SMCJ90CA-E3/57T ideal for protecting AC-coupled lines, differential buses, or floating grounds where polarity cannot be guaranteed.
What is the maximum leakage current of SMCJ90CA-E3/57T at its standoff voltage?
The SMCJ90CA-E3/57T exhibits a maximum reverse leakage current (ID) of 1.0 μA at its 90 V standoff voltage (VWM), measured at 25 °C. This ultra-low leakage ensures minimal loading on high-impedance circuits such as sensor bias networks or precision reference dividers. Leakage remains within specification across the full operating temperature range (-55 °C to +150 °C), supporting stable performance in thermally demanding applications like under-hood automotive electronics.
Can SMCJ90CA-E3/57T replace older P6KE91CA devices?
Yes, the SMCJ90CA-E3/57T is a direct functional upgrade to P6KE91CA: both are bidirectional 90 V TVS diodes, but the SMCJ90CA-E3/57T offers 1500 W peak pulse power (vs. 600 W for P6KE91CA), faster response (<1 ns vs. ~1.5 ns), and superior thermal performance due to the larger SMC package. Layout changes are required - SMCJ90CA-E3/57T uses DO-214AB footprint versus DO-15 for P6KE91CA - but the enhanced surge capability and surface-mount compatibility make the SMCJ90CA-E3/57T the preferred choice for new designs and legacy upgrades where board space allows.
SMCJ90CA-E3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 90V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 146V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- 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)
SMCJ90CA-E3/57T FAQ
1.How can I place an order for SMCJ90CA-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ90CA-E3/57T 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 SMCJ90CA-E3/57T reliable?
The price and inventory of SMCJ90CA-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ90CA-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ90CA-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ90CA-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ90CA-E3/57T?
SMCJ90CA-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ90CA-E3/57T 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 SMCJ90CA-E3/57T?
For technical support, including SMCJ90CA-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ90CA-E3/57T requirements.
6.How does Aetrix verify that SMCJ90CA-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ90CA-E3/57T 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 SMCJ90CA-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ90CA-E3/57T?
All SMCJ90CA-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ90CA-E3/57T, 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 SMCJ90CA-E3/57T part is unused and in its original packaging.
Return procedure for SMCJ90CA-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ90CA-E3/57T Tags
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