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Vishay General Semiconductor - Diodes Division SMBJ90CA-E3/52
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- Part No.:
- SMBJ90CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ90CA-E3/52.pdf
- Description:
- TVS DIODE 90VWM 146VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,468
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Product details
Overview
SMBJ90CA-E3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal or power lines. It features a 90 V standoff voltage (VWM), 100 V minimum breakdown voltage (VBR), 146 V maximum clamping voltage (VC) at 4.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, sensor interfaces, and industrial I/O circuits against ESD and inductive switching surges.
For engineers reviewing the SMBJ90CA-E3/52 datasheet, SMBJ90CA-E3/52 pinout, SMBJ90CA-E3/52 application, or SMBJ90CA-E3/52 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM = 1.62), MSL Level 1 moisture sensitivity, RoHS-compliant matte tin terminations, and compatibility with automated SMT placement on PCBs requiring robust transient immunity per IEC 61000-4-2/4-4/4-5.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR, VC, and IPPM specifications in either direction. Its glass-passivated junction ensures stable avalanche characteristics and fast response time (<1 ns), enabling effective suppression of sub-microsecond transients induced by relay switching or lightning surges.
The device uses a planar silicon junction structure housed in an SMB package with 2.2 mm × 3.9 mm footprint and 2.44 mm height. Thermal resistance is rated at RθJA = 100 °C/W (on 5.0 mm × 5.0 mm copper pads), supporting continuous operation up to TJ = 150 °C and surge handling per JEDEC JESD22-A114E (ESD) and IEC 61000-4-5 (surge).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse operating voltage before significant leakage; defines safe working range for protected line. |
| VBR (min) | 100 V at 1 mA - Minimum voltage at which device enters avalanche conduction; ensures reliable triggering above normal operating voltage. |
| VC (max) | 146 V at 4.1 A - Clamped voltage during 10/1000 µs surge; limits stress on downstream ICs to safe levels. |
| PPPM | 600 W - Peak pulse power handling capacity; supports repetitive surge events at 0.01% duty cycle without degradation. |
| IPPM | 4.1 A - Peak surge current corresponding to VC; determines minimum trace width and layout clearance needed. |
| TJ max | 150 °C - Maximum junction temperature; enables use in industrial environments with ambient up to +85 °C under derated conditions. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 2.2 mm × 3.9 mm body and 2.44 mm height; compatible with IPC-7351B footprint. |
Pinout & Package
Two-terminal bidirectional device in SMB (DO-214AA) package; no polarity marking. Terminals are matte tin-plated leads solderable per J-STD-002 and JESD22-B102, qualified to JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically; voltage clamping occurs regardless of polarity - essential for AC-coupled or floating signal lines. |
| Cathode Band (absent) | Polarity indicator | Not present on bidirectional variants; distinguishes SMBJ90CA-E3/52 from unidirectional SMBJ90A-E3/52. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC signals, differential buses (e.g., RS-485), and floating power rails without polarity concerns. |
| 600 W peak pulse power (10/1000 µs) | Supports high-energy surge events common in industrial motor drives and telecom line interfaces. |
| Low clamping ratio (VC/VWM = 1.62) | Minimizes overvoltage exposure to protected ICs while maintaining margin above VWM. |
| MSL Level 1 (260 °C peak reflow) | Allows single-pass lead-free reflow without baking or special handling - reduces manufacturing cost and risk. |
| RoHS-compliant, halogen-free option available | Meets global environmental compliance requirements including EU RoHS Directive 2011/65/EU and JEDEC JS709E. |
Applications
| Industrial Motor Control I/O Protection | Automotive Sensor Signal Lines |
|---|---|
|
Use Scenario: Protecting PLC digital input modules from inductive kickback when controlling solenoids or contactors. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between field wiring and optocoupler input stage. Use Value: Limits transient voltage to ≤146 V, preventing damage to 24 V-rated input circuitry during 100 A coil de-energization events. |
Use Scenario: Shielding analog outputs of pressure or temperature sensors in engine control units from load dump and jump-start surges. IC Role / Device Role / Timing Role: Primary transient suppressor on 5 V sensor supply rail and signal return path. Use Value: Maintains <1 µA leakage at 90 V, ensuring minimal impact on sensor accuracy while surviving ISO 7637-2 Pulse 5a (75 V/100 ms) events. |
| Telecom Line Interface Protection | Consumer Appliance Power Supply Inputs |
|
Use Scenario: Safeguarding RS-485 transceivers connected to long-distance field wiring exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Common-mode TVS on differential pair, mounted adjacent to connector. Use Value: Clamps common-mode transients to <146 V within <1 ns, preserving signal integrity and meeting IEC 61000-4-5 Level 3 (1 kV) requirements. |
Use Scenario: Suppressing switching noise and line surges on AC-DC adapter primary-side rectifier outputs in white goods. IC Role / Device Role / Timing Role: Secondary-side TVS across bulk capacitor to absorb residual spikes after MOV clamping. Use Value: Provides precise 90 V hold-off with 146 V clamping, avoiding false triggering while protecting 100 V-rated electrolytic capacitors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90CA-M3/52 | Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package. | No difference in circuit performance; selected where halogen-free materials are mandated by OEM or regional regulations. | Choose SMBJ90CA-M3/52 when compliance with JEDEC JS709E or IPC-1752A is required. |
| SMCJ90CA-E3/52 | Same VWM/VBR/VC ratings but in larger SMC (DO-214AB) package with 1500 W PPPM and lower RθJA (50 °C/W). | Used where higher surge energy absorption or improved thermal dissipation is needed, e.g., outdoor telecom equipment. | Choose SMCJ90CA-E3/52 only if board space allows and >600 W surge rating is required; not drop-in due to different footprint. |
Compared with SMBJ90CA-E3/52, SMBJ90CA-M3/52 offers identical protection performance with halogen-free construction, while SMCJ90CA-E3/52 delivers 2.5× higher surge power in a physically incompatible package - making SMBJ90CA-E3/52 optimal for space-constrained industrial PCBs needing certified RoHS compliance without halogen restrictions.
Availability
SMBJ90CA-E3/52 is available at Aetrix Electronics and suitable for industrial motor control I/O protection, automotive sensor interface hardening, and telecom line surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBJ90CA-E3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, precision, and application-specific optimization.
The SMBJ series is engineered for high-reliability transient suppression in harsh environments - targeting industrial automation, automotive electronics, and infrastructure systems where consistent clamping performance and AEC-Q101 qualification matter.
FAQ
What is the standoff voltage rating of SMBJ90CA-E3/52?
The SMBJ90CA-E3/52 has a maximum reverse standoff voltage (VWM) of 90 V, meaning it remains non-conductive below this voltage with leakage current ≤1.0 µA. This rating ensures compatibility with 72–90 V DC power rails and AC signal lines where transient suppression is needed without interfering with normal operation.
Is SMBJ90CA-E3/52 suitable for automotive applications?
SMBJ90CA-E3/52 is RoHS-compliant and meets MSL Level 1, but it is not AEC-Q101 qualified. For automotive use, select the HE3-suffixed variant (e.g., SMBJ90CAHE3_B/H). The SMBJ90CA-E3/52 is appropriate for non-safety-critical industrial or consumer applications where AEC-Q101 is not mandated.
How does SMBJ90CA-E3/52 differ from unidirectional SMBJ90A-E3/52?
SMBJ90CA-E3/52 is bidirectional with symmetrical clamping in both directions and no cathode band marking, whereas SMBJ90A-E3/52 is unidirectional with a visible cathode band and conducts only in reverse bias. Their VWM, VBR, and VC values differ slightly due to test condition variations - SMBJ90CA-E3/52 has VBR(min) = 100 V vs. SMBJ90A-E3/52's 100 V (same value), but clamping behavior is fundamentally different.
What is the maximum clamping voltage of SMBJ90CA-E3/52 at rated surge current?
The SMBJ90CA-E3/52 clamps to a maximum of 146 V at its rated peak pulse current of 4.1 A (10/1000 µs waveform). This clamping voltage defines the upper voltage limit imposed on protected circuitry during surge events and must be verified against the absolute maximum ratings of downstream components.
Does SMBJ90CA-E3/52 require special PCB layout considerations?
Yes - for optimal performance, SMBJ90CA-E3/52 should be placed as close as possible to the protected interface with short, wide traces to minimize inductance. Mounting on 5.0 mm × 5.0 mm copper pads per terminal is recommended to achieve the specified RθJA = 100 °C/W and sustain repetitive surges without thermal runaway.
SMBJ90CA-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- 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):
- 4.1A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMBJ)
SMBJ90CA-E3/52 FAQ
1.How can I place an order for SMBJ90CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ90CA-E3/52 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 SMBJ90CA-E3/52 reliable?
The price and inventory of SMBJ90CA-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ90CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ90CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ90CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ90CA-E3/52?
SMBJ90CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ90CA-E3/52 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 SMBJ90CA-E3/52?
For technical support, including SMBJ90CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ90CA-E3/52 requirements.
6.How does Aetrix verify that SMBJ90CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ90CA-E3/52 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 SMBJ90CA-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ90CA-E3/52?
All SMBJ90CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ90CA-E3/52, 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 SMBJ90CA-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ90CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ90CA-E3/52 Tags
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