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Vishay General Semiconductor - Diodes Division SMBJ90D-M3/I
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- Part No.:
- SMBJ90D-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ90D-M3/I.pdf
- Description:
- TVS DIODE 90VWM 144VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,129
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Product details
Overview
SMBJ90D-M3/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 90 V stand-off voltage (VWM), 102–109 V breakdown voltage (VBR) at 1 mA, 144 V maximum clamping voltage (VC) at 4.17 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform.
For engineers reviewing the SMBJ90D-M3/I datasheet, SMBJ90D-M3/I pinout, SMBJ90D-M3/I application, or SMBJ90D-M3/I equivalent, key selection considerations include its unidirectional polarity, ±3.5 % tight VBR tolerance, low 0.5 μA reverse leakage at VWM, M3 halogen-free/RoHS-compliant industrial-grade construction, and suitability for inductive load switching and lightning surge protection in industrial and telecom systems.
Technical Context
This TVS diode operates as a clamping device that remains high-impedance below VWM (90 V) and rapidly transitions to low-impedance conduction above VBR (102–109 V), limiting transient voltages to ≤144 V at 4.17 A. Its junction-to-ambient thermal resistance is 125 °C/W on minimum pad layout, supporting reliable operation up to 150 °C junction temperature.
The SMBJ90D-M3/I complies with ANSI/IEEE C62.35 surge standards and meets UL 497B recognition (QVGQ2) for protector classification. It is rated for repetitive 0.01 % duty cycle surges and exhibits fast response time (<1 ns), low incremental surge resistance, and MSL Level 1 moisture sensitivity per J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 90 V - Maximum continuous reverse operating voltage before significant conduction begins |
| VBR (Breakdown Voltage) | 102–109 V at 1.0 mA - Tight ±3.5 % tolerance ensures predictable turn-on threshold |
| VC (Clamping Voltage) | 144 V at IPPM = 4.17 A - Limits transient voltage seen by protected circuitry during 10/1000 μs surge |
| PPPM (Peak Pulse Power) | 600 W - Sustains standardized 10/1000 μs surge without failure under specified mounting conditions |
| ID (Reverse Leakage) | 0.5 μA max at VWM - Minimizes standby power loss and avoids false triggering in high-impedance circuits |
| Package | SMB (DO-214AA) - Surface-mount footprint compatible with automated assembly; 5.59 mm × 4.06 mm outline |
| Polarity | Unidirectional - Cathode band denotes terminal; blocks reverse current until breakdown threshold is exceeded |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, RoHS-compliant and halogen-free (M3 suffix), MSL Level 1, 260 °C reflow peak.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lower-potential rail; forms cathode-to-anode clamping path during positive transients |
| Cathode (banded end) | High-side surge input terminal | Receives transient energy; clamps voltage relative to anode when reverse-biased beyond VBR |
Key Features
| Feature | Design Value |
|---|---|
| ±3.5 % VBR tolerance | Enables precise, repeatable clamping threshold across production lots-critical for margin-critical power rail protection |
| 600 W peak pulse power (10/1000 μs) | Handles high-energy transients from inductive switching or ESD events without degradation under defined duty cycle |
| Low 0.5 μA leakage at 90 V | Preserves signal integrity and minimizes quiescent current draw in always-on sensor or control circuits |
| M3 industrial-grade construction | Halogen-free, RoHS-compliant, JESD201 Class 2 whisker-resistant - qualified for long-term reliability in harsh environments |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT processes without preconditioning or special handling requirements |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
|
Use Scenario: Protection of gate drivers and DC bus sensing circuits against voltage spikes caused by IGBT/MOSFET switching transients. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed across DC link or gate-source terminals to limit overshoot. Use Value: Clamps transients to ≤144 V, preventing gate oxide damage and ensuring stable operation of 100 V-class power stages. |
Use Scenario: Surge suppression on -48 V DC input rails of telecom base station power modules exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on rectified input, coordinated with upstream MOVs and downstream regulators. Use Value: Withstands 600 W pulses and maintains <0.5 μA leakage, preserving efficiency while meeting GR-1089-CORE Level 4 immunity requirements. |
| Automotive Body Control Modules | Industrial Sensor Interfaces |
|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from load dump and ISO 7637-2 Pulse 5a transients. IC Role / Device Role / Timing Role: Unidirectional TVS on supply rail and signal lines, leveraging tight VBR tolerance for accurate threshold alignment. Use Value: 102–109 V VBR ensures clamping initiates before 12 V system transients exceed safe MCU voltage limits (e.g., 13.5 V nominal + 100 V spike). |
Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors in factory automation PLCs subjected to relay coil flyback. IC Role / Device Role / Timing Role: Low-leakage TVS on sensor output lines to prevent offset drift and ADC saturation during field wiring faults. Use Value: 0.5 μA max leakage avoids loading high-impedance sensor outputs; 144 V VC prevents latch-up in 24 V industrial signal chains. |
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/I | Bidirectional variant; same VWM (90 V), but symmetric clamping in both polarities; slightly higher VC (144 V vs. 144 V - identical for this voltage grade) | Required where AC-coupled or dual-polarity signal lines (e.g., RS-485, CAN) need protection without polarity biasing | Select SMBJ90A-M3/I only if bidirectional clamping is required; SMBJ90D-M3/I is optimal for DC rails with defined ground reference. |
| SMCJ90A-M3/I | Larger SMC (DO-214AB) package; same 90 V VWM, but higher PPPM (1500 W), higher IPPM (10.3 A), and lower VC (144 V → 137 V) | Used where higher surge energy handling is mandated (e.g., outdoor telecom enclosures, railway electronics) | Choose SMCJ90A-M3/I when 1500 W surge rating is required; SMBJ90D-M3/I fits space-constrained PCBs needing 600 W capability. |
Compared with SMBJ90A-M3/I, the SMBJ90D-M3/I provides unidirectional clamping optimized for grounded DC systems, while SMCJ90A-M3/I offers higher surge capacity in a larger footprint-selection depends on polarity requirement and board area versus energy rating trade-offs.
Availability
SMBJ90D-M3/I is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and automotive body control modules requiring stable component supply, long-lifecycle support, and consistent M3-grade material compliance.
Supply support for SMBJ90D-M3/I 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 industrial-grade qualification.
The SMBJ series is part of Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-reliability transient suppression in demanding industrial, telecom, and automotive applications where tight VBR tolerance and repeatable clamping performance are critical.
FAQ
What is the clamping voltage of SMBJ90D-M3/I at its rated peak pulse current?
The SMBJ90D-M3/I has a maximum clamping voltage (VC) of 144 V at its peak pulse current (IPPM) of 4.17 A, measured using the standard 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during a full-rated surge event and is guaranteed across the operating temperature range.
Is SMBJ90D-M3/I suitable for bidirectional signal line protection?
No - SMBJ90D-M3/I is a unidirectional TVS diode, intended for DC power rail or single-polarity signal protection where the cathode is referenced to a fixed potential (e.g., ground). For bidirectional lines like RS-485 or CAN, use the bidirectional variant SMBJ90A-M3/I, which clamps symmetrically in both directions.
What does the "M3" suffix indicate in SMBJ90D-M3/I?
The "M3" suffix denotes Vishay's industrial-grade construction: halogen-free molding compound, RoHS compliance, and qualification to JESD201 Class 2 for tin whisker resistance. It also confirms MSL Level 1 rating for moisture sensitivity, enabling standard 260 °C lead-free reflow without baking.
How does SMBJ90D-M3/I compare to SMAJ90A in terms of surge capability?
SMBJ90D-M3/I delivers 600 W peak pulse power in the SMB package, whereas SMAJ90A (SMA/DO-214AC) is rated for only 400 W. The SMBJ90D-M3/I also offers tighter ±3.5 % VBR tolerance versus SMAJ's typical ±5 %, making it more suitable for designs requiring precise clamping thresholds and higher energy handling in the same general footprint class.
Can SMBJ90D-M3/I be used in place of SMBJ90A-M3/I without circuit modification?
No - SMBJ90D-M3/I is unidirectional and requires correct polarity orientation (cathode to protected line), while SMBJ90A-M3/I is bidirectional and has no polarity marking. Substituting SMBJ90D-M3/I for SMBJ90A-M3/I on AC or floating lines risks open-circuit behavior during negative transients and may compromise protection integrity.
SMBJ90D-M3/I 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 90V
- Voltage - Breakdown (Min):
- 102V
- Voltage - Clamping (Max) @ Ipp:
- 144V
- Current - Peak Pulse (10/1000µs):
- 4.17A
- 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)
SMBJ90D-M3/I FAQ
1.How can I place an order for SMBJ90D-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ90D-M3/I 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 SMBJ90D-M3/I reliable?
The price and inventory of SMBJ90D-M3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ90D-M3/I is usually 5 days.
3.What payment methods are accepted for SMBJ90D-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ90D-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ90D-M3/I?
SMBJ90D-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ90D-M3/I 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 SMBJ90D-M3/I?
For technical support, including SMBJ90D-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ90D-M3/I requirements.
6.How does Aetrix verify that SMBJ90D-M3/I is sourced from the original manufacturer or authorized distributors?
All SMBJ90D-M3/I 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 SMBJ90D-M3/I meets industry standards.
7.What is the process for return or replacement of SMBJ90D-M3/I?
All SMBJ90D-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ90D-M3/I, 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 SMBJ90D-M3/I part is unused and in its original packaging.
Return procedure for SMBJ90D-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ90D-M3/I Tags
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Diodes Incorporated
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