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Vishay General Semiconductor - Diodes Division SMBJ90AHE3_B/H
- Part No.:
- SMBJ90AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ90AHE3_B/H.pdf
- Description:
- 600W,90V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,097
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Product details
Overview
SMBJ90AHE3_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 stand-off 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 on power rails and signal lines of industrial motor drives and automotive body control modules.
For engineers reviewing the SMBJ90AHE3_B/H datasheet, SMBJ90AHE3_B/H pinout, SMBJ90AHE3_B/H application, or SMBJ90AHE3_B/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance data, clamping performance under surge conditions, and real-world protection use cases for robust ESD and surge design validation.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM = 90 V, it avalanches into low-impedance conduction to divert transient energy away from downstream ICs or MOSFETs. Its 100 °C/W junction-to-ambient thermal resistance (RθJA) and 20 °C/W junction-to-lead (RθJL) support reliable power dissipation under repetitive surge events up to 0.01% duty cycle.
The device meets J-STD-020 MSL Level 1 (peak reflow ≤ 260 °C), uses glass-passivated chip junction technology for stable leakage and fast response (< 1 ns), and is rated for -55 °C to +150 °C operating junction temperature - enabling deployment in under-hood automotive environments and industrial PLC I/O modules without derating concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC rail margin for protected circuit. |
| VBR (min) | 100 V at 1.0 mA test current - Ensures reliable turn-on above normal operating voltage while avoiding false triggering. |
| VC (max) | 146 V at IPPM = 4.1 A - Limits worst-case voltage seen by protected device during 10/1000 µs surge, critical for MOSFET VDSS margin. |
| PPPM | 600 W - Peak transient power handling capability with standardized 10/1000 µs waveform; enables single-device protection against IEC 61000-4-5 Level 3 surges. |
| IFSM | 100 A - Non-repetitive forward surge current rating (8.3 ms half-sine); supports inrush current immunity in DC power input stages. |
| TJ max | +150 °C - Maximum junction temperature rating; allows operation in high-ambient environments such as engine control units. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with automated pick-and-place and reflow soldering. |
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 current entry / Surge return path | Connected to ground or low-impedance return plane; completes clamping loop during transient events. |
| Cathode | Protected line connection / Surge sink node | Connected to line being protected (e.g., 90 V supply rail); avalanche conduction occurs between cathode and anode when VAK ≥ VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including body electronics and powertrain subsystems per stress test requirements. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges (1.2/50 µs voltage, 8/20 µs current) without degradation when mounted per recommended pad layout. |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes overvoltage stress on protected MOSFETs or microcontrollers during transient events - critical for 100 V-rated components. |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking; eliminates production delays and moisture-related popcorning risk. |
| Glass-passivated junction | Ensures stable leakage current (< 1 µA at VWM) and repeatable breakdown characteristics across temperature and lifetime. |
Applications
| Automotive Body Control Module (BCM) | Industrial Motor Drive Power Input |
|---|---|
|
Use Scenario: Protects 90 V auxiliary power rail in BCM against load dump and alternator ripple-induced transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between 90 V supply and chassis ground to clamp positive-going surges. Use Value: Limits transient voltage to ≤146 V, preserving integrity of 150 V-rated gate drivers and CAN transceivers downstream. |
Use Scenario: Shields DC bus input stage of 3-phase inverter from switching-induced voltage spikes and EFT bursts. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input terminals to absorb 600 W surge energy within 10/1000 µs window. Use Value: Prevents latch-up or gate oxide damage in IGBTs by clamping overshoot before it exceeds VCES rating. |
| Telecom Power Supply Output | Consumer Appliance Mainboard Protection |
|
Use Scenario: Safeguards 90 V bias supply feeding RF front-end amplifiers in base station power systems. IC Role / Device Role / Timing Role: Fast-response TVS placed at output filter capacitor node to suppress lightning-induced common-mode surges. Use Value: Maintains amplifier functionality by limiting voltage excursion to <146 V during 1 kV/0.5 kA surge events. |
Use Scenario: Guards microcontroller I/O lines tied to 90 V solenoid driver circuits in washing machine control boards. IC Role / Device Role / Timing Role: Localized TVS mounted adjacent to solenoid driver IC to clamp inductive kickback at source. Use Value: Eliminates need for external snubbers by absorbing 100 A surge energy with sub-ns response and no recovery delay. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90AHM3_B/H | Halogen-free, RoHS-compliant variant with identical electrical specs and AEC-Q101 qualification. | No functional difference; selected where halogen-free material compliance is mandated by OEM environmental policy. | Choose SMBJ90AHM3_B/H when halogen-free bill-of-materials is required; otherwise SMBJ90AHE3_B/H is preferred for cost-sensitive designs. |
| SMCJ90AHE3_A/H | Same VWM/VBR/VC ratings but in larger SMC (DO-214AB) package with 1500 W PPPM and higher IPPM (7.5 A). | Used where higher surge margin or board-level redundancy is needed; requires larger PCB area and different pad layout. | Select SMCJ90AHE3_A/H only if system-level surge testing exceeds 600 W requirement or if thermal derating demands lower RθJA. |
Compared with SMBJ90AHE3_B/H, SMBJ90AHM3_B/H offers identical protection performance with halogen-free construction, while SMCJ90AHE3_A/H provides 2.5× higher surge power handling at the cost of increased footprint and thermal mass - making SMBJ90AHE3_B/H optimal for space-constrained AEC-Q101-compliant 90 V rail protection.
Availability
SMBJ90AHE3_B/H is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drive inputs, telecom power supplies, and consumer appliance mainboards requiring stable component supply and AEC-Q101-qualified surge protection.
Supply support for SMBJ90AHE3_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 reliability, automotive qualification, and high-volume manufacturability.
The SMBJ series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where consistent clamping performance and long-term stability under surge stress are mandatory.
FAQ
What is the maximum clamping voltage of SMBJ90AHE3_B/H at its rated peak pulse current?
The SMBJ90AHE3_B/H has a maximum clamping voltage (VC) of 146 V at its specified peak pulse current (IPPM) of 4.1 A, measured using the standard 10/1000 µs waveform. This value ensures protected downstream components - such as 150 V-rated MOSFETs - remain within safe operating limits during surge events. The SMBJ90AHE3_B/H achieves this with a clamping ratio of approximately 1.46 relative to its minimum breakdown voltage.
Is SMBJ90AHE3_B/H qualified for automotive applications?
Yes, SMBJ90AHE3_B/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation in the SMBJ5.0A–SMBJ188A datasheet (Document Number: 88392). This qualification covers stress tests including HTGB, HTRB, TCT, and mechanical shock - validating its suitability for under-hood and body electronics applications where reliability under thermal cycling and vibration is critical. The SMBJ90AHE3_B/H meets these requirements without derating at full temperature range.
What is the standoff voltage rating of SMBJ90AHE3_B/H, and how does it relate to system design?
The SMBJ90AHE3_B/H has a standoff voltage (VWM) of 90 V, meaning it remains non-conductive up to this DC or RMS voltage level. In system design, this value must be ≥10–15% below the maximum continuous operating voltage of the protected line to avoid leakage or premature conduction. For example, when protecting a nominal 85 V DC bus, the SMBJ90AHE3_B/H provides appropriate margin while ensuring robust clamping at 100 V breakdown - a key parameter verified in the SMBJ90AHE3_B/H datasheet table.
Does SMBJ90AHE3_B/H have moisture sensitivity limitations for PCB assembly?
No - SMBJ90AHE3_B/H is rated MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C. This means it can be processed through standard lead-free reflow profiles without pre-baking or special handling. The SMBJ90AHE3_B/H's moisture-resistant molding compound and terminal plating meet JESD 22-B102 solderability requirements, supporting high-yield automated assembly in automotive and industrial manufacturing lines.
How does the thermal resistance of SMBJ90AHE3_B/H affect its surge handling capability?
The SMBJ90AHE3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W. These values directly impact its ability to dissipate heat during repetitive surges: at 0.01% duty cycle, the device sustains 600 W pulses without exceeding its 150 °C maximum junction temperature when mounted on 5.0 mm × 5.0 mm copper pads per terminal. This thermal performance is validated in Figure 2 of the SMBJ90AHE3_B/H datasheet and enables reliable operation in enclosed industrial enclosures.
SMBJ90AHE3_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)
SMBJ90AHE3_B/H FAQ
1.How can I place an order for SMBJ90AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ90AHE3_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 SMBJ90AHE3_B/H reliable?
The price and inventory of SMBJ90AHE3_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 SMBJ90AHE3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ90AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ90AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ90AHE3_B/H?
SMBJ90AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ90AHE3_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 SMBJ90AHE3_B/H?
For technical support, including SMBJ90AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ90AHE3_B/H requirements.
6.How does Aetrix verify that SMBJ90AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ90AHE3_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 SMBJ90AHE3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ90AHE3_B/H?
All SMBJ90AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ90AHE3_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 SMBJ90AHE3_B/H part is unused and in its original packaging.
Return procedure for SMBJ90AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ90AHE3_B/H Tags
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