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Vishay General Semiconductor - Diodes Division SMBJ90AHM3_B/H
- Part No.:
- SMBJ90AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ90AHM3_B/H.pdf
- Description:
- 600W,90V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,159
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Product details
Overview
SMBJ90AHM3_B/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. 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 for safeguarding MOSFETs, ICs, and sensor signal lines in industrial and telecom equipment.
For engineers reviewing the SMBJ90AHM3_B/H datasheet, SMBJ90AHM3_B/H pinout, SMBJ90AHM3_B/H application, or SMBJ90AHM3_B/H equivalent, key selection criteria include its unidirectional polarity, halogen-free RoHS-compliant construction (HM3 suffix), AEC-Q101 qualification readiness, low thermal resistance (RθJL = 20 °C/W), and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This TVS diode operates as a clamping device that remains non-conductive below its 90 V stand-off voltage and rapidly transitions to low-impedance conduction when transient voltages exceed its 100–111 V breakdown range (tested at 1 mA). Its glass-passivated junction ensures stable leakage performance (<1.0 µA at VWM) and fast response time (<1.0 ps), enabling effective suppression of ESD and surge events before downstream components are stressed.
The SMBJ90AHM3_B/H is rated for repetitive 600 W pulse power under 10/1000 µs waveform at 0.01% duty cycle, with derating above 25 °C ambient per Fig. 2. Its thermal design supports operation up to +150 °C junction temperature, and it meets J-STD-020 MSL Level 1 with peak reflow temperature of 260 °C - confirming suitability for high-reliability commercial and automotive-grade assembly processes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse operating voltage before significant leakage; defines safe operating margin for protected circuitry. |
| VBR (min/max) | 100 V / 111 V at 1 mA - Breakdown onset range; determines earliest clamping activation threshold during overvoltage events. |
| VC @ IPPM | 146 V at 4.1 A - Clamped voltage seen by protected load during full-rated 600 W transient; limits stress on downstream components. |
| PPPM | 600 W - Peak pulse power handling capability with 10/1000 µs waveform; validates robustness against common surge standards (IEC 61000-4-5). |
| IFSM | 100 A - Non-repetitive forward surge current rating (8.3 ms half-sine); supports protection against high-energy inductive kickback. |
| TJ max. | +150 °C - Maximum junction temperature; enables reliable operation in high-ambient environments such as industrial motor drives or base station power supplies. |
| RθJL | 20 °C/W - Junction-to-lead thermal resistance; allows direct heat transfer to PCB copper pads without heatsink, simplifying layout. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity marked by cathode band on one end; anode and cathode terminals defined accordingly for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground path when VWM exceeded - must be routed with low-inductance ground return. |
| Anode | Reference/return node | Typically tied to system ground or lower-potential rail; completes clamping path and defines directionality of protection. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Validates compliance with IEC 61000-4-5 Level 4 surge immunity requirements for industrial interfaces and power inputs. |
| Halogen-free, RoHS-compliant (HM3 suffix) | Meets environmental compliance mandates for global OEM shipments and supports lead-free reflow profiles up to 260 °C. |
| AEC-Q101 qualified option available | Enables drop-in use in automotive subsystems (e.g., body control modules, ADAS sensors) where qualification traceability is required. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for 3.3 V or 5 V logic-level ICs. |
| MSL Level 1 moisture sensitivity | Eliminates bake-out requirement prior to reflow, reducing manufacturing cost and handling complexity in high-volume SMT lines. |
Applications
| Industrial Motor Drive Control | Telecom Power Supply Input |
|---|---|
|
Use Scenario: Protection of gate drivers and feedback sensing circuits against back-EMF spikes from PWM-controlled AC induction motors. IC Role / Device Role: Unidirectional clamping TVS placed across DC bus or gate drive lines to limit transient voltage to <146 V. Use Value: Prevents latch-up or permanent damage to 600 V IGBT gate oxide and isolated error amplifiers operating near 90 V nominal rails. |
Use Scenario: Surge suppression on primary-side rectified input of 48 V telecom power supplies exposed to lightning-induced surges on AC mains. IC Role / Device Role: Standoff-rated TVS shunting transients before bulk capacitor and PFC controller inputs. Use Value: Maintains system uptime by absorbing 600 W surges without degradation, meeting GR-1089-CORE Level 3 telecom immunity requirements. |
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|
Use Scenario: Protection of LIN bus transceivers and microcontroller I/O pins against load dump and jump-start transients in 12 V vehicle systems. IC Role / Device Role: Unidirectional TVS connected between LIN line and chassis ground, leveraging 90 V VWM to tolerate normal battery fluctuations. Use Value: Enables AEC-Q101-compliant designs using HM3 variant, ensuring long-term reliability under repeated 120 V/50 ms load dump pulses. |
Use Scenario: Guarding analog front-end inputs of 4–20 mA current loop transmitters connected to field-mounted pressure/temperature sensors. IC Role / Device Role: Low-leakage (≤1.0 µA) TVS placed across input terminals to clamp ESD and cable-coupled noise without affecting 24 V loop bias. Use Value: Preserves measurement accuracy by limiting clamping voltage to 146 V while maintaining sub-µA bias current integrity at 24 V operating point. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90AHE3_B/H | RoHS-compliant but not halogen-free; same electrical specs and SMB package. | Lacks halogen-free certification required for certain EU industrial and medical OEMs. | Select SMBJ90AHM3_B/H when halogen-free compliance is mandated; otherwise SMBJ90AHE3_B/H offers identical protection performance at lower cost. |
| SMBJ90A-E3/52 | Same electrical ratings, but supplied in 7" tape-and-reel (750 pcs) with E3 suffix (RoHS, non-halogen-free, commercial grade). | Not qualified to AEC-Q101; intended for non-automotive commercial use only. | Choose SMBJ90A-E3/52 for cost-sensitive consumer or computing applications where halogen-free or automotive qualification is unnecessary. |
Compared with SMBJ90AHE3_B/H and SMBJ90A-E3/52, the SMBJ90AHM3_B/H uniquely combines halogen-free construction, RoHS compliance, and AEC-Q101 qualification readiness - making it the preferred choice for automotive-tier-1 suppliers and environmentally regulated industrial programs requiring full material declaration and extended reliability validation.
Availability
SMBJ90AHM3_B/H is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive body control modules, and industrial sensor signal conditioning requiring stable component supply and full halogen-free compliance.
Supply support for SMBJ90AHM3_B/H 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 high-reliability, high-efficiency power solutions.
The SMBJ series was developed specifically for robust transient suppression in harsh electromagnetic environments - targeting industrial automation, automotive electronics, and telecom infrastructure where failure tolerance and long-term stability are critical.
FAQ
What is the clamping voltage of SMBJ90AHM3_B/H at its rated peak pulse current?
The SMBJ90AHM3_B/H has a maximum clamping voltage (VC) of 146 V at its rated peak pulse current of 4.1 A (10/1000 µs waveform). This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during a full-power transient event. The SMBJ90AHM3_B/H maintains this clamping performance across its specified operating temperature range and is validated per ANSI/IEEE C62.35 standards.
Is SMBJ90AHM3_B/H suitable for automotive applications?
Yes - the HM3 suffix indicates halogen-free, RoHS-compliant construction, and the SMBJ90AHM3_B/H is offered in AEC-Q101-qualified variants (base P/NHM3_X). While the exact revision code "B/H" denotes packaging configuration, the underlying die and qualification status align with automotive-grade requirements. Engineers should verify the specific lot's AEC-Q101 certificate with Vishay or Aetrix for production release in safety-critical vehicle subsystems.
How does the SMBJ90AHM3_B/H differ from the SMBJ90A-E3/52 variant?
The SMBJ90AHM3_B/H uses halogen-free molding compound and carries the HM3 suffix, whereas SMBJ90A-E3/52 uses standard RoHS-compliant (but halogen-containing) material with E3 suffix. Both share identical electrical specifications (VWM = 90 V, VC = 146 V, PPPM = 600 W) and SMB package. The SMBJ90AHM3_B/H is also qualified to AEC-Q101, while SMBJ90A-E3/52 is commercial-grade only - making the former mandatory for regulated automotive or green-industrial programs.
What is the thermal resistance from junction to lead for SMBJ90AHM3_B/H?
The SMBJ90AHM3_B/H has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, as specified in the Vishay datasheet. This low value enables efficient heat transfer from the silicon die directly into the PCB copper pads via the leads, supporting sustained operation at elevated ambient temperatures without external heatsinking. It is measured under standard mounting conditions (0.2" × 0.2" copper pads per terminal) and confirms suitability for high-power-density board layouts.
Does SMBJ90AHM3_B/H require special handling for moisture sensitivity?
No - the SMBJ90AHM3_B/H is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and can be processed through standard lead-free reflow profiles (peak 260 °C) without pre-baking. This eliminates moisture-related popcorning risk and reduces manufacturing overhead in high-volume SMT lines. The device's molding compound meets UL 94 V-0 flammability rating and is compatible with both water-based and no-clean flux chemistries.
SMBJ90AHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ90AHM3_B/H FAQ
1.How can I place an order for SMBJ90AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ90AHM3_B/H 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 SMBJ90AHM3_B/H reliable?
The price and inventory of SMBJ90AHM3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ90AHM3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ90AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ90AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ90AHM3_B/H?
SMBJ90AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ90AHM3_B/H 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 SMBJ90AHM3_B/H?
For technical support, including SMBJ90AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ90AHM3_B/H requirements.
6.How does Aetrix verify that SMBJ90AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ90AHM3_B/H 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 SMBJ90AHM3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ90AHM3_B/H?
All SMBJ90AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ90AHM3_B/H, 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 SMBJ90AHM3_B/H part is unused and in its original packaging.
Return procedure for SMBJ90AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ90AHM3_B/H Tags
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