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Vishay General Semiconductor - Diodes Division SMBJ90AHM3/H
- Part No.:
- SMBJ90AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ90AHM3/H.pdf
- Description:
- TVS DIODE 90VWM 146VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,229
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Product details
Overview
SMBJ90AHM3/H 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 at 4.1 A peak pulse current (IPPM), 600 W peak pulse power (10/1000 µs), and operates across -55 °C to +150 °C junction temperature range - deployed in industrial sensor interface protection.
For engineers reviewing the SMBJ90AHM3/H datasheet, SMBJ90AHM3/H pinout, SMBJ90AHM3/H application, or SMBJ90AHM3/H equivalent, this page delivers verified electrical parameters, thermal behavior, AEC-Q101 qualification status, halogen-free RoHS compliance, and real-world use context for surge protection design validation.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for fast response (<1 ps typical) to transient overvoltages, with low incremental surge resistance enabling stable clamping under repetitive 10/1000 µs surges at 0.01% duty cycle. Its unidirectional polarity ensures cathode-referenced clamping on positive-going transients only.
Thermal performance is defined by RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), supporting operation up to 150 °C junction temperature when mounted on 0.2" × 0.2" copper pads per JEDEC standards. The HM3 suffix confirms halogen-free, RoHS-compliant construction and AEC-Q101 qualification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse operating voltage before conduction begins; defines safe working margin below clamping threshold. |
| VBR (min) | 100 V at 1 mA test current - Ensures reliable turn-on above system nominal voltage to avoid false triggering. |
| VC (max) | 146 V at IPPM = 4.1 A - Clamped voltage seen by protected IC/MOSFET during worst-case 600 W transient event. |
| PPPM | 600 W (10/1000 µs waveform) - Peak transient energy absorption capability without failure under standardized surge profile. |
| IFSM | 100 A (8.3 ms half-sine) - Surge current rating for unidirectional forward conduction during AC line fault events. |
| TJ max | +150 °C - Enables deployment in under-hood automotive, motor drive, and industrial control environments. |
| Package | SMB (DO-214AA) - Surface-mount footprint compatible with automated assembly; 0.220" × 0.155" body size with matte tin-plated leads. |
Pinout & Package
Package: SMB (DO-214AA), molded case with matte tin-plated leads, MSL Level 1 (260 °C peak reflow), UL 94 V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR. |
| Anode | Reference / ground return path | Typically tied to system ground plane; completes conduction path during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Supports robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 24 V industrial buses. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive powertrain and body electronics applications requiring long-term reliability under thermal cycling. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JESD201 Class 2 whisker resistance for high-reliability PCB assemblies. |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes stress on downstream MOSFETs or ICs by limiting overshoot during fast-rising transients. |
| Fast response time (<1 ps) | Clamps ESD and lightning-induced spikes before sensitive circuitry sustains damage. |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
|
Use Scenario: Protecting 24 V CAN/LIN bus transceivers and analog sensor inputs from load dump and inductive switching transients in factory automation systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp positive surges while blocking normal DC bias. Use Value: Limits clamped voltage to 146 V, ensuring protected transceiver ICs (e.g., TJA1042) remain within absolute maximum ratings during 100 V/100 A load dump events. |
Use Scenario: Safeguarding microcontroller GPIOs and power supply rails in door module ECUs exposed to ISO 7637-2 Pulse 5a (load dump) and Pulse 1 (inductive kick). IC Role / Device Role / Timing Role: Standoff-rated TVS connected anode-to-ground on 12 V supply input to absorb 600 W transients without latch-up. Use Value: With VWM = 90 V and VC = 146 V, it prevents overvoltage shutdown of 5 V LDO regulators downstream while meeting AEC-Q101 lifetime requirements. |
| Telecom Power Supply Input | Motor Drive Gate Driver Protection |
|
Use Scenario: Secondary-side transient suppression on 48 V telecom rectifier outputs feeding PoE injectors and baseband processors. IC Role / Device Role / Timing Role: Unidirectional clamping device installed between +48 V rail and ground to limit surge propagation to downstream DC/DC converters. Use Value: 600 W rating handles repeated 10/1000 µs surges from nearby lightning strikes; 150 °C TJ max supports operation inside sealed outdoor cabinets. |
Use Scenario: Protecting high-side gate driver ICs (e.g., IRS21844) from Miller-induced voltage spikes during IGBT/MOSFET switching in HVAC inverters. IC Role / Device Role / Timing Role: TVS placed between gate and source terminals to clamp dv/dt-induced overshoot exceeding VGS(max). Use Value: VC = 146 V ensures gate oxide integrity for 100 V-rated drivers; low capacitance avoids slowing gate drive edge rates. |
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/H | Same electrical specs, but RoHS-compliant commercial grade (not halogen-free); lacks AEC-Q101 qualification. | Approved for non-automotive industrial use only; not suitable for automotive OEM BOMs requiring AEC-Q101 traceability. | Select SMBJ90AHM3/H when halogen-free content and automotive qualification are mandatory. |
| SMBJ90CAHM3/H | Bidirectional variant with symmetrical VBR (100–111 V) and same VC; no polarity marking. | Required for AC-coupled lines or bidirectional data buses (e.g., RS-485) where negative transients must also be clamped. | Choose SMBJ90CAHM3/H only if protection against both polarities is needed; otherwise SMBJ90AHM3/H offers lower leakage and tighter VWM margin. |
Compared with SMBJ90AHE3/H, SMBJ90AHM3/H adds halogen-free material compliance and AEC-Q101 qualification without sacrificing clamping performance; versus SMBJ90CAHM3/H, it provides superior unidirectional leakage control and higher VWM margin for DC-biased rails.
Availability
SMBJ90AHM3/H is available at Aetrix Electronics and suitable for industrial sensor interface, automotive body control module, telecom power supply input, and motor drive gate driver protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMBJ90AHM3/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 and application-specific performance.
The SMBJ series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where failure modes must be mitigated without compromising signal integrity or thermal stability.
FAQ
What is the clamping voltage of SMBJ90AHM3/H at its rated peak pulse current?
The SMBJ90AHM3/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 downstream components like 100 V-rated MOSFETs or CAN transceivers remain within safe operating limits during surge events. The SMBJ90AHM3/H achieves this clamping performance while maintaining low incremental surge resistance and fast response time.
Is SMBJ90AHM3/H qualified for automotive applications?
Yes, SMBJ90AHM3/H is AEC-Q101 qualified, as confirmed by the "HM3" suffix in its ordering code - indicating halogen-free, RoHS-compliant construction and full automotive-grade reliability testing. It is approved for use in body control modules, lighting systems, and infotainment power supplies where sustained operation at 150 °C junction temperature and resistance to thermal cycling are required. The SMBJ90AHM3/H meets all stress tests defined in AEC-Q101 Rev D.
How does the HM3 suffix differ from the HE3 suffix in Vishay's SMBJ series?
The HM3 suffix denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction, whereas HE3 indicates RoHS-compliant and AEC-Q101-qualified but not halogen-free. For SMBJ90AHM3/H, this means full compliance with JEDEC J-STD-208 (halogen content ≤ 900 ppm Cl, ≤ 900 ppm Br, total ≤ 1500 ppm) and automotive qualification - critical for Tier 1 suppliers enforcing strict material declarations. The SMBJ90AHM3/H maintains identical electrical specs to SMBJ90AHE3/H except for material composition.
What is the maximum operating temperature for SMBJ90AHM3/H?
The SMBJ90AHM3/H has a maximum junction temperature (TJ) rating of +150 °C, validated per AEC-Q101 thermal cycling and high-temperature operating life tests. This enables deployment in under-hood automotive locations, industrial motor drives, and enclosed telecom equipment where ambient temperatures exceed 85 °C. Derating curves in the datasheet confirm usable power dissipation down to 50% at 125 °C ambient when mounted per recommended pad layout. The SMBJ90AHM3/H remains fully functional across the full -55 °C to +150 °C range.
Can SMBJ90AHM3/H replace SMBJ90AHE3/H in an existing design?
SMBJ90AHM3/H is a direct drop-in replacement for SMBJ90AHE3/H in terms of footprint, pinout, and electrical characteristics - both use the SMB (DO-214AA) package and share identical VWM, VBR, VC, and PPPM. However, SMBJ90AHM3/H adds halogen-free compliance and retains AEC-Q101 qualification, making it suitable for upgraded automotive or green-electronics designs. No PCB changes are required, but material declarations and qualification documentation must be updated to reflect the HM3 specification. The SMBJ90AHM3/H delivers identical protection performance with enhanced environmental compliance.
SMBJ90AHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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/H FAQ
1.How can I place an order for SMBJ90AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ90AHM3/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/H reliable?
The price and inventory of SMBJ90AHM3/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/H is usually 5 days.
3.What payment methods are accepted for SMBJ90AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ90AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ90AHM3/H?
SMBJ90AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ90AHM3/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/H?
For technical support, including SMBJ90AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ90AHM3/H requirements.
6.How does Aetrix verify that SMBJ90AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ90AHM3/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/H meets industry standards.
7.What is the process for return or replacement of SMBJ90AHM3/H?
All SMBJ90AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ90AHM3/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/H part is unused and in its original packaging.
Return procedure for SMBJ90AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ90AHM3/H Tags
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