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Vishay General Semiconductor - Diodes Division SMBJ90-E3/5B
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- Part No.:
- SMBJ90-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ90-E3/5B.pdf
- Description:
- TVS DIODE 90VWM 160VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,694
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Product details
Overview
SMBJ90-E3/5B 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 stand-off voltage (VWM), 100 V minimum breakdown voltage (VBR), 146 V maximum clamping voltage (VC) at 4.1 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform). It is used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies and telecom line cards.
For engineers reviewing the SMBJ90-E3/5B datasheet, SMBJ90-E3/5B pinout, SMBJ90-E3/5B application, or SMBJ90-E3/5B equivalent, key selection criteria include its 90 V stand-off rating, 146 V clamping performance under 4.1 A surge, unidirectional polarity with cathode band marking, RoHS-compliant matte tin terminals, and suitability for automated SMT placement on PCBs with 5.0 mm × 5.0 mm copper pads.
Technical Context
The SMBJ90-E3/5B operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its 100–111 V breakdown range (tested at 1 mA). Its clamping action limits transient-induced overvoltage to ≤146 V during a 10/1000 µs surge, delivering 600 W peak pulse power dissipation without failure. Thermal resistance is 100 °C/W junction-to-ambient (on recommended pad layout) and 20 °C/W junction-to-lead.
It complies with ANSI/IEEE C62.35 surge standards and meets J-STD-020 MSL Level 1 moisture sensitivity with 260 °C reflow peak. The device exhibits low incremental surge resistance and fast response time (<1 ns), enabling protection of sensitive downstream circuitry against inductive switching spikes and lightning-induced surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 90 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 100–111 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering above system nominal voltage. |
| VC (Clamping Voltage) | 146 V at 4.1 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Maximum transient energy absorption capability; enables robust protection against IEC 61000-4-5 level 4 surges. |
| IPPM (Peak Pulse Current) | 4.1 A - Surge current handled at rated clamping voltage; directly tied to PCB trace width and pad thermal design. |
| TJmax | 150 °C - Maximum junction temperature; supports operation in industrial ambient environments up to +85 °C with proper derating. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with high-volume pick-and-place equipment. |
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 | Forward conduction terminal (cathode-banded end is opposite) | Connected to lower-potential side (e.g., ground or return path); defines directionality of surge clamping. |
| Cathode | Avalanche conduction terminal (marked with band) | Connected to higher-potential line (e.g., 90 V rail); conducts during reverse overvoltage events to clamp to safe levels. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against high-energy transients per IEC 61000-4-5, reducing need for cascaded TVS stages. |
| 146 V clamping voltage at 4.1 A | Provides defined overvoltage ceiling for 90 V systems, allowing precise margining of downstream IC absolute maximum ratings. |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT assembly without pre-baking or special handling, lowering manufacturing cost and risk. |
| RoHS-compliant, matte tin terminals | Ensures solderability per J-STD-002 and JESD 22-B102, with whisker resistance per JESD 201 Class 2 for long-term reliability. |
| Low profile SMB package | Minimizes board space (5.59 mm × 4.06 mm) while maintaining thermal performance via 20 °C/W junction-to-lead resistance. |
Applications
| Industrial Power Supply Protection | Telecom Line Card Surge Suppression |
|---|---|
|
Use Scenario: Protecting DC input rails of programmable logic controllers (PLCs) and motor drives from inductive kickback and load dump events. IC Role / Device Role / Timing Role: Unidirectional TVS placed across 90 V auxiliary supply rail, shunting surge current to ground before it reaches DC-DC controller ICs. Use Value: Limits transient voltage to ≤146 V, preserving integrity of 150 V-rated input capacitors and preventing latch-up in buck controller ICs. |
Use Scenario: Safeguarding Ethernet PHY interface power pins (e.g., 3.3 V, 5 V, or 12 V rails) on telecom line cards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on secondary-side bias rails, activated only during >100 V transients to avoid leakage impact on normal operation. Use Value: Maintains <1 µA leakage at 90 V, ensuring no degradation of PHY bias stability while clamping ESD and surge events to safe levels. |
| Automotive Body Control Module (BCM) | Sensor Signal Line Protection |
|
Use Scenario: Protecting 12 V–90 V subsystems (e.g., window lift control, seat actuator drivers) in AEC-Q101-qualified variants (HE3 suffix). IC Role / Device Role / Timing Role: Primary overvoltage clamp on switched 90 V battery-fed circuits, absorbing load dump energy per ISO 7637-2 Pulse 5a. Use Value: Delivers 600 W pulse power handling with 150 °C max junction temperature, meeting automotive thermal and surge requirements without derating. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops or 0–10 V sensor outputs) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-leakage unidirectional TVS placed between signal line and local ground, minimizing interference with precision analog signals. Use Value: Achieves ≤1 µA reverse leakage at 90 V, preventing offset errors in 16-bit DACs or instrumentation amplifiers downstream. |
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-M3/5B | Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package; same VWM, VBR, VC, and PPPM. | No functional difference; selected where halogen-free materials are mandated by environmental compliance policies (e.g., EU RoHS Annex XIV). | Choose SMBJ90A-M3/5B when halogen-free bill-of-materials is required; otherwise, SMBJ90-E3/5B offers standard RoHS compliance at broader distribution availability. |
| SMCJ90A-E3/2A | Same 90 V VWM and 146 V VC, but in larger SMC (DO-214AB) package with 1500 W PPPM and 11.2 A IPPM. | Higher surge capacity suits applications with repeated high-energy transients (e.g., outdoor AC-powered gateways), but requires larger PCB area. | Choose SMCJ90A-E3/2A only when 600 W is insufficient and board space allows the 7.11 mm × 6.22 mm SMC footprint; otherwise, SMBJ90-E3/5B provides optimal size/power balance. |
Compared with SMBJ90A-M3/5B, SMBJ90-E3/5B offers standard RoHS compliance without halogen-free constraints, while SMCJ90A-E3/2A trades compactness for 2.5× higher surge rating-making SMBJ90-E3/5B the preferred choice for space-constrained 90 V rail protection where 600 W suffices.
Availability
SMBJ90-E3/5B is available at Aetrix Electronics and suitable for industrial power supplies, telecom line cards, automotive body control modules, and sensor interface designs requiring stable component supply and consistent surge protection performance.
Supply support for SMBJ90-E3/5B 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, efficiency, and application-specific optimization.
The SMBJ series is engineered for high-reliability transient suppression in demanding environments-designed to meet industrial, automotive (AEC-Q101), and telecom surge immunity standards while supporting automated SMT manufacturing.
FAQ
What is the clamping voltage of SMBJ90-E3/5B at its rated peak pulse current?
The SMBJ90-E3/5B has a maximum clamping voltage (VC) of 146 V when subjected to its specified peak pulse current of 4.1 A under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ90-E3/5B maintains this clamping performance across its qualified operating temperature range, making it suitable for industrial and telecom applications where predictable overvoltage limiting is critical.
Is SMBJ90-E3/5B RoHS-compliant and lead-free?
Yes, SMBJ90-E3/5B is RoHS-compliant and lead-free, as confirmed by Vishay's "E3" suffix designation. It uses matte tin-plated terminals that meet J-STD-002 solderability requirements and JESD 201 Class 2 whisker resistance testing. The molding compound satisfies UL 94 V-0 flammability rating, and the entire construction adheres to EU RoHS Directive 2011/65/EU. No lead or restricted substances exceed threshold limits in the SMBJ90-E3/5B.
What is the standoff voltage rating of SMBJ90-E3/5B, and how does it relate to system design?
The SMBJ90-E3/5B has a standoff voltage (VWM) of 90 V, meaning it remains non-conductive up to this reverse DC voltage under normal operation. This rating allows designers to place the SMBJ90-E3/5B across 90 V rails-such as auxiliary supplies in industrial PLCs or telecom power modules-without leakage concerns. System margin is ensured because VWM is 10 % below the minimum breakdown voltage (100 V), providing robust noise immunity while avoiding false triggering during voltage ripple or transients within specification.
Can SMBJ90-E3/5B be used in automotive applications?
The base SMBJ90-E3/5B is commercial-grade; however, Vishay offers AEC-Q101-qualified versions under ordering codes like SMBJ90AHE3_B/I (with HE3 suffix). These variants undergo extended stress testing for temperature cycling, humidity, and surge robustness per automotive qualification standards. For non-automotive use, SMBJ90-E3/5B delivers full electrical performance in industrial and telecom environments-but for automotive body control or infotainment systems, the HE3-suffixed AEC-Q101 version must be specified to ensure compliance.
What is the thermal resistance of SMBJ90-E3/5B, and how does it affect PCB layout?
The SMBJ90-E3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes minimal copper area; increasing pad size or adding thermal vias reduces RθJA and improves power handling during repetitive surges. Designers must allocate adequate copper area around both terminals to maintain junction temperature below 150 °C under worst-case duty cycles-especially important in enclosed industrial enclosures with limited airflow.
SMBJ90-E3/5B 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-E3/5B FAQ
1.How can I place an order for SMBJ90-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ90-E3/5B 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-E3/5B reliable?
The price and inventory of SMBJ90-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ90-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ90-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ90-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ90-E3/5B?
SMBJ90-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ90-E3/5B 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-E3/5B?
For technical support, including SMBJ90-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ90-E3/5B requirements.
6.How does Aetrix verify that SMBJ90-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ90-E3/5B 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-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ90-E3/5B?
All SMBJ90-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ90-E3/5B, 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-E3/5B part is unused and in its original packaging.
Return procedure for SMBJ90-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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