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Vishay General Semiconductor - Diodes Division SMBJ90C-E3/52
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- Part No.:
- SMBJ90C-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ90C-E3/52.pdf
- Description:
- TVS DIODE 90VWM 160VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,913
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Product details
Overview
SMBJ90C-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 - deployed in industrial sensor interfaces and telecom line protection.
For engineers reviewing the SMBJ90C-E3/52 datasheet, SMBJ90C-E3/52 pinout, SMBJ90C-E3/52 application, or SMBJ90C-E3/52 equivalent, key selection criteria include bidirectional clamping capability, low leakage (<1.0 µA at VWM), AEC-Q101 qualification eligibility, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT assembly on standard PCB pad layouts.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche breakdown in both polarities, enabling transient suppression without polarity sensitivity. Its glass-passivated junction ensures stable VBR tolerance (±10 %) and low incremental surge resistance, critical for consistent clamping under repetitive surges.
The SMBJ90C-E3/52 delivers fast response time (<1.0 ns), supports 100 A non-repetitive forward surge current (IFSM), and maintains operation across –55 °C to +150 °C junction temperature range. It meets MSL Level 1 per J-STD-020 and is rated for 260 °C lead-free reflow peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe signal line operating margin. |
| VBR (min) | 100 V at 1.0 mA test current - Guaranteed avalanche onset threshold; ensures predictable turn-on during overvoltage events. |
| VC (max) | 146 V at IPPM = 4.1 A - Peak clamped voltage seen by protected circuit; determines downstream component voltage stress. |
| PPPM | 600 W with 10/1000 µs waveform - Surge energy handling capacity; validates robustness against lightning-induced or inductive-switching transients. |
| ID (max) | 1.0 µA at VWM - Reverse leakage current; ensures minimal signal loading and power loss in high-impedance interfaces. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance; informs derating requirements for sustained power dissipation in enclosed environments. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads, RoHS-compliant, MSL Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal under positive transient | One side of symmetrical junction; connects to line under protection without polarity constraint. |
| Cathode | Current entry terminal under negative transient | Other side of symmetrical junction; completes bidirectional conduction path during either polarity surge. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without external polarity management. |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 surge currents (e.g., 4 kV/2 Ω) without degradation when mounted per recommended pad layout. |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes overvoltage exposure to downstream ICs - critical for 100 V-rated interface components like RS-485 transceivers. |
| AEC-Q101 qualification option | HE3/HM3 variants available for automotive applications; SMBJ90C-E3/52 shares identical electrical specs and package with qualified versions. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; simplifies manufacturing logistics for high-volume SMT lines. |
Applications
| Industrial Sensor Interface | Telecom Line Protection |
|---|---|
|
Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loops) in factory automation sensors exposed to relay switching noise and ESD. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and ground, absorbing ±1 kV EFT bursts per IEC 61000-4-4. Use Value: Limits transient voltage to ≤146 V, preventing damage to precision DACs or op-amps while maintaining <1 µA leakage at 90 V nominal line voltage. |
Use Scenario: Shielding RS-485/RS-422 data lines in base station backhaul equipment from induced surges due to nearby lightning strikes. IC Role / Device Role / Timing Role: Line-to-ground TVS on differential pair, leveraging symmetrical breakdown to suppress common-mode transients without distorting signal integrity. Use Value: Clamps 600 W surges within nanoseconds, preserving signal eye diagram up to 10 Mbps and meeting Telcordia GR-1089-CORE immunity requirements. |
| Power Supply Input Stage | Automotive Body Control Module |
|
Use Scenario: Secondary-side transient suppression on 24 V DC input rails feeding microcontrollers and CAN transceivers in embedded power supplies. IC Role / Device Role / Timing Role: Standoff-rated protector placed after bulk filter capacitor, shunting inductive kickback from relay drivers or motor controllers. Use Value: Withstands 100 A surge (8.3 ms half-sine) and clamps to 146 V, ensuring downstream LDOs and PMICs remain within absolute maximum ratings. |
Use Scenario: Protecting LIN bus lines and switch inputs in door module ECUs subjected to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Bidirectional clamp on low-speed serial bus, compatible with AEC-Q101-qualified variants for full automotive qualification traceability. Use Value: Maintains <1 µA leakage at 90 V, avoiding false wake-up in sleep mode; RθJA = 100 °C/W enables thermal design within 150 °C junction limit under under-hood 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 |
|---|---|---|---|
| SMBJ90CA-T | Same VWM (90 V), identical VC (146 V), but packaged by ON Semiconductor in tape-and-reel with different reel coding (T vs. /52). | No functional difference; validated for same industrial and telecom surge standards (IEC 61000-4-2/4-4/4-5). | Select based on supply chain availability and preferred distributor stocking program. |
| 1.5SMC90CA | Higher PPPM (1500 W), larger SMC (DO-214AB) package (7.11 mm × 6.22 mm), 10% higher VC (162 V at 9.2 A). | Used where higher surge margin is required (e.g., outdoor telecom cabinets), but requires PCB layout change due to larger footprint. | Choose only if 600 W is insufficient; otherwise, SMBJ90C-E3/52 offers better board space efficiency and lower parasitic inductance. |
Compared with SMBJ90CA-T, SMBJ90C-E3/52 offers identical electrical performance with Vishay-specific packaging and traceability; versus 1.5SMC90CA, it trades surge headroom for compact size and faster response - making it optimal for space-constrained, high-density industrial PCBs requiring precise 90 V clamping.
Availability
SMBJ90C-E3/52 is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom line protection, and automotive body control modules requiring stable component supply, RoHS compliance, and MSL Level 1 handling.
Supply support for SMBJ90C-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 and application-specific optimization.
The SMBJ series is engineered for high-energy transient suppression in harsh environments - targeting industrial automation, telecom infrastructure, and automotive subsystems where robustness and consistency are non-negotiable.
FAQ
What is the polarity configuration of SMBJ90C-E3/52?
SMBJ90C-E3/52 is a bidirectional TVS diode with symmetrical avalanche characteristics in both directions. It has no cathode band marking and does not require orientation during placement. This configuration allows it to protect AC-coupled signals or floating lines without polarity constraints, unlike unidirectional variants such as SMBJ90A-E3/52.
Does SMBJ90C-E3/52 meet automotive qualification standards?
SMBJ90C-E3/52 itself is commercial-grade (E3 suffix), but Vishay offers functionally identical AEC-Q101-qualified versions under HE3 and HM3 suffixes (e.g., SMBJ90CHE3_B/H). The SMBJ90C-E3/52 shares the same electrical specifications, package, and thermal behavior - only differing in test documentation and traceability for automotive use cases.
What is the maximum clamping voltage of SMBJ90C-E3/52 under surge conditions?
The maximum clamping voltage (VC) of SMBJ90C-E3/52 is 146 V at a peak pulse current (IPPM) of 4.1 A with a 10/1000 µs waveform. This value is guaranteed across temperature and represents the highest voltage imposed on the protected circuit during standardized surge testing, directly informing downstream component voltage rating selection.
How does SMBJ90C-E3/52 compare to SMBJ90A-E3/52 in circuit protection role?
SMBJ90C-E3/52 provides bidirectional clamping, while SMBJ90A-E3/52 is unidirectional and requires correct cathode orientation. For DC-biased lines or ground-referenced signals, SMBJ90A-E3/52 may offer slightly lower leakage; however, SMBJ90C-E3/52 eliminates orientation risk and supports AC or differential signaling - making it preferable for RS-485, LIN, or sensor output protection where polarity is undefined.
What PCB pad layout is recommended for optimal thermal and surge performance of SMBJ90C-E3/52?
Vishay specifies a minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad per terminal for SMBJ90C-E3/52 to achieve rated 600 W pulse power and thermal resistance (RθJA = 100 °C/W). Using smaller pads reduces surge capability and increases junction temperature - potentially triggering premature failure during repetitive transients. The recommended layout is documented in Figure 6 of datasheet 88392.
SMBJ90C-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:
- 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):
- 3.8A
- 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)
SMBJ90C-E3/52 FAQ
1.How can I place an order for SMBJ90C-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ90C-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 SMBJ90C-E3/52 reliable?
The price and inventory of SMBJ90C-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 SMBJ90C-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ90C-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ90C-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ90C-E3/52?
SMBJ90C-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ90C-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 SMBJ90C-E3/52?
For technical support, including SMBJ90C-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ90C-E3/52 requirements.
6.How does Aetrix verify that SMBJ90C-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ90C-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 SMBJ90C-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ90C-E3/52?
All SMBJ90C-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ90C-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 SMBJ90C-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ90C-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ90C-E3/52 Tags
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