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Vishay General Semiconductor - Diodes Division SMBJ90-E3/52
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- Part No.:
- SMBJ90-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ90-E3/52.pdf
- Description:
- TVS DIODE 90VWM 160VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,203
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Product details
Overview
SMBJ90-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 90 V standoff voltage (VWM), 100 V minimum breakdown voltage (VBR), 146 V maximum clamping voltage at 4.1 A peak pulse current (IPPM), and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies and telecom line cards.
For engineers reviewing the SMBJ90-E3/52 datasheet, SMBJ90-E3/52 pinout, SMBJ90-E3/52 application, or SMBJ90-E3/52 equivalent, key selection criteria include unidirectional polarity, 1.0 µA max reverse leakage at 90 V, 150 °C max junction temperature, RoHS-compliant matte tin plating, and compatibility with automated SMT placement on standard PCB pad layouts per J-STD-020 MSL Level 1.
Technical Context
This TVS diode operates as a voltage-clamping protection device that remains high-impedance below VWM = 90 V and rapidly transitions to low-impedance conduction above VBR ≥ 100 V to divert transient energy. Its glass-passivated silicon junction ensures stable breakdown characteristics and fast response time (< 1 ns), enabling suppression of ESD, lightning-induced surges, and inductive switching spikes.
The SMBJ90-E3/52 delivers 600 W peak pulse power handling under standardized 10/1000 µs waveform conditions, with thermal resistance RθJA = 100 °C/W and RθJL = 20 °C/W, supporting reliable operation up to 150 °C junction temperature when mounted on 5.0 mm × 5.0 mm copper pads per terminal.
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 circuitry. |
| VBR (min) | 100 V at IT = 1 mA - Minimum breakdown voltage threshold; guarantees clamping activation only above system overvoltage limits. |
| VC (max) | 146 V at IPPM = 4.1 A - Maximum clamped voltage during 600 W transient; determines peak stress on downstream components. |
| IPPM | 4.1 A with 10/1000 µs waveform - Peak surge current capability; defines transient energy absorption capacity per event. |
| ID (max) | 1.0 µA at VWM = 90 V - Reverse leakage current; ensures minimal standby power loss and signal integrity in high-impedance circuits. |
| TJ max | +150 °C - Maximum junction temperature; enables use in high-ambient environments like industrial motor drives and base station power modules. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with cathode band marking; compatible with JEDEC-standard reflow profiles and automated pick-and-place. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, polarity indicated by cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration; must be routed with low-inductance trace for effective surge shunting. |
| Cathode | Current exit point during forward conduction; marked with band | Connected to protected line (e.g., 90 V rail or signal input); clamps transients toward anode when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) without derating in compact SMB footprint. |
| Glass passivated junction | Ensures stable VBR tolerance (±5 % typical), low leakage drift over temperature, and long-term reliability in humid or contaminated environments. |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow soldering without preconditioning; eliminates moisture-related popcorning risk during assembly. |
| RoHS-compliant, commercial grade (E3 suffix) | Meets EU RoHS Directive 2011/65/EU and JESD201 Class 2 whisker resistance; suitable for consumer, telecom, and industrial applications. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD), improving clamping precision for sensitive 3.3 V or 5 V logic interfaces. |
Applications
| Industrial Motor Drive Power Supply | Telecom Line Card Surge Protection |
|---|---|
Use Scenario: Protecting DC bus inputs from inductive kickback during IGBT/MOSFET switching in variable-frequency drives. IC Role / Device Role / Timing Role: Unidirectional TVS placed across +90 V rail and ground to clamp switching spikes before they reach bulk capacitors and control ICs. Use Value: Limits transient voltage to ≤146 V, preventing overvoltage failure of 100 V-rated electrolytic capacitors and gate drivers. |
Use Scenario: Safeguarding Ethernet PHY interface and PoE controller inputs against lightning-induced surges on RJ45 ports. IC Role / Device Role / Timing Role: TVS connected between differential pair and chassis ground to absorb common-mode transients while preserving signal integrity. Use Value: Withstands 600 W pulses without degradation, maintaining <1 µA leakage at 90 V to avoid bias current errors in analog front-end circuits. |
| Automotive Body Control Module (BCM) | Consumer Appliance Mainboard Power Input |
Use Scenario: Shielding 12 V/24 V supply rails in BCMs from load dump and jump-start transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Primary clamping device on battery feed line, coordinated with upstream fuse and downstream L-C filter. Use Value: Delivers 100 A non-repetitive surge current capability (IFSM) and 150 °C junction rating for under-hood thermal resilience. |
Use Scenario: Guarding AC-DC adapter output against surges caused by relay contact bounce or capacitor inrush in washing machine or HVAC controllers. IC Role / Device Role / Timing Role: Final-stage TVS on regulated 90 V DC output rail feeding microcontroller and display driver ICs. Use Value: Provides 146 V clamping ceiling to ensure downstream 100 V-rated components operate within safe SOA limits during surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90A-M3/52 | Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package; same VWM, VBR, VC, and IPPM. | Required where halogen-free material compliance is mandated (e.g., EU public infrastructure projects). | Select SMBJ90A-M3/52 when halogen-free composition is specified in BOM or environmental compliance documentation. |
| SMBJ90AHE3_B/I | AEC-Q101 qualified version with same electrical parameters but automotive-grade screening, including extended temperature cycling and HTOL testing. | Approved for under-hood automotive use (e.g., engine control units, ADAS power domains) where qualification to AEC-Q101 is mandatory. | Choose SMBJ90AHE3_B/I only when automotive qualification is required; otherwise, SMBJ90-E3/52 offers full performance at commercial-grade cost. |
Compared with SMBJ90-E3/52, SMBJ90A-M3/52 adds halogen-free compliance without altering surge performance or layout, while SMBJ90AHE3_B/I provides automotive qualification at higher cost and longer lead time - neither is pin-compatible in the sense of guaranteed drop-in replacement without review of qualification requirements.
Availability
SMBJ90-E3/52 is available at Aetrix Electronics and suitable for industrial motor drives, telecom line cards, and consumer appliance power inputs requiring stable component supply, RoHS compliance, and proven surge immunity.
Supply support for SMBJ90-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, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series was developed to deliver high-power transient suppression in compact surface-mount packages for industrial, telecom, and automotive systems where space, thermal performance, and surge robustness are critical.
FAQ
What is the maximum clamping voltage of SMBJ90-E3/52 under surge conditions?
The SMBJ90-E3/52 has a maximum clamping voltage (VC) of 146 V at its rated peak pulse current of 4.1 A using the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during transient events. The SMBJ90-E3/52 maintains this clamping performance across its operational temperature range and is validated with 5.0 mm × 5.0 mm copper pad mounting per terminal.
Is SMBJ90-E3/52 suitable for automotive applications?
SMBJ90-E3/52 is a commercial-grade device and not AEC-Q101 qualified. For automotive use, Vishay offers the SMBJ90AHE3_B/I variant, which undergoes full AEC-Q101 stress testing. The SMBJ90-E3/52 may be used in non-safety-critical automotive subsystems only if customer validation confirms suitability - however, official automotive designs require the HE3-suffixed part. Always verify qualification status directly in the Vishay ordering information table for SMBJ90-E3/52.
What does the "E3/52" suffix indicate in SMBJ90-E3/52?
The "E3" suffix denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting JESD201 Class 2 whisker resistance. The "/52" indicates packaging in 7-inch diameter plastic tape and reel, with a base quantity of 750 units per reel. This format supports standard SMT pick-and-place equipment and is documented in Vishay's ordering information table for the SMBJ family.
How does SMBJ90-E3/52 compare to SMAJ90A in terms of power handling?
SMBJ90-E3/52 delivers 600 W peak pulse power with a 10/1000 µs waveform, whereas the SMAJ90A (in smaller SMA package) is rated for 400 W under identical test conditions. The SMBJ90-E3/52 achieves higher power handling due to its larger SMB (DO-214AA) package, which provides greater thermal mass and lower junction-to-lead resistance (RθJL = 20 °C/W vs. ~30 °C/W for SMAJ). This makes SMBJ90-E3/52 preferable for high-energy surge environments.
Can SMBJ90-E3/52 be used in bidirectional configurations?
No - SMBJ90-E3/52 is a unidirectional TVS diode, identified by its cathode band marking. Bidirectional operation requires a CA-suffixed part such as SMBJ90CA. Using SMBJ90-E3/52 in reverse-biased configurations risks permanent damage, as it conducts heavily in reverse above VBR but lacks symmetrical breakdown characteristics. Always match device polarity to circuit topology: SMBJ90-E3/52 for DC rail clamping, SMBJ90CA for AC or differential signal line protection.
SMBJ90-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:
- 1
- Bidirectional Channels:
- -
- 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)
SMBJ90-E3/52 FAQ
1.How can I place an order for SMBJ90-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ90-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 SMBJ90-E3/52 reliable?
The price and inventory of SMBJ90-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 SMBJ90-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ90-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ90-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ90-E3/52?
SMBJ90-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ90-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 SMBJ90-E3/52?
For technical support, including SMBJ90-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ90-E3/52 requirements.
6.How does Aetrix verify that SMBJ90-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ90-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 SMBJ90-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ90-E3/52?
All SMBJ90-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ90-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 SMBJ90-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ90-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ90-E3/52 Tags
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