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Vishay General Semiconductor - Diodes Division SMBJ90HE3/52
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- Part No.:
- SMBJ90HE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ90HE3/52.pdf
- Description:
- TVS DIODE 90VWM 160VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,895
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Product details
Overview
SMBJ90HE3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of DC power rails and signal lines. 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 - deployed in automotive infotainment power supplies and industrial sensor interfaces.
For engineers reviewing the SMBJ90HE3/52 datasheet, SMBJ90HE3/52 pinout, SMBJ90HE3/52 application, or SMBJ90HE3/52 equivalent, key selection criteria include clamping performance under 4.1 A surge, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its 100–111 V breakdown range at 1 mA test current. Its low incremental surge resistance ensures minimal voltage overshoot during transient events, while glass-passivated junction construction enhances reliability under repetitive surges.
The device is rated for 100 A non-repetitive forward surge current (8.3 ms half-sine), supports operating junction temperatures from –55 °C to +150 °C, and meets MSL Level 1 per J-STD-020 with peak reflow temperature up to 260 °C - confirming suitability for high-volume automotive PCB assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 90 V - maximum continuous reverse working voltage before conduction begins |
| VBR (Breakdown Voltage) | 100–111 V at 1 mA - precise avalanche initiation threshold for predictable clamping onset |
| VC (Clamping Voltage) | 146 V at IPPM = 4.1 A - limits downstream IC stress during 10/1000 µs transients |
| PPPM (Peak Pulse Power) | 600 W - sustains high-energy surges without failure under standard 10/1000 µs waveform |
| RθJA (Thermal Resistance) | 100 °C/W - defines junction-to-ambient temperature rise under 5.0 W steady-state dissipation |
| IFSM (Surge Current) | 100 A - withstands single 8.3 ms half-sine surge on power rails without bond-wire failure |
| TJmax | +150 °C - enables operation in under-hood automotive environments and sealed industrial enclosures |
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. Cathode indicated by band marking on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference node | Connected to lower-potential side (e.g., GND or return path) in unidirectional protection configuration |
| Cathode | Avalanche conduction terminal / Clamping output node | Connected to protected line (e.g., 90 V rail); conducts when VKA ≥ VBR, shunting surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including infotainment, body control modules, and ADAS power domains |
| 600 W peak pulse power (10/1000 µs) | Clamps lightning-induced or inductive-switching transients without degradation across >1000 cycles |
| Glass passivated junction | Prevents moisture ingress and electromigration, ensuring long-term stability in humid or thermally cycled environments |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning or baking requirements |
| Low profile SMB package | Enables high-density layout on space-constrained PCBs while maintaining thermal pad area for heat dissipation |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 90 V DC supply lines in vehicle infotainment head units against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between input rail and chassis ground to limit transient overvoltage. Use Value: Limits clamped voltage to ≤146 V during 4.1 A surge, preventing damage to downstream DC/DC controllers and microcontrollers. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors exposed to ESD and cable discharge. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across signal and return paths to absorb fast-rising transients before reaching ADC inputs. Use Value: Maintains signal integrity with <1 µA leakage at 90 V, while clamping 8 kV contact ESD events within nanoseconds. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Securing 90 V auxiliary power inputs in telecom base station remote radio units subjected to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Primary overvoltage suppression stage upstream of bulk capacitors and PMICs. Use Value: Withstands 600 W peak pulse energy without parametric shift, preserving system uptime in outdoor deployments. |
Use Scenario: Shielding microcontroller GPIOs and gate drivers in smart appliance motor inverters from commutation spikes generated by BLDC motors. IC Role / Device Role / Timing Role: Localized TVS mounted adjacent to motor driver ICs to suppress sub-100 ns switching transients. Use Value: Fast response time and low clamping voltage prevent false triggering or latch-up in sensitive logic circuitry. |
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-E3/52 | Commercial-grade (non-AEC-Q101), identical electrical specs and SMB package | Lacks automotive qualification; suitable for industrial/commercial designs without automotive compliance needs | Select SMBJ90A-E3/52 when AEC-Q101 is not required and cost optimization is prioritized |
| SMLJ90HE3/52 | Same AEC-Q101 qualification but in larger SMC (DO-214AB) package with 1500 W PPPM | Higher surge handling capacity; requires larger PCB footprint and different thermal pad layout | Choose SMLJ90HE3/52 only if system-level surge testing exceeds 600 W capability of SMBJ90HE3/52 |
Compared with SMBJ90A-E3/52, SMBJ90HE3/52 adds automotive qualification without altering clamping behavior; versus SMLJ90HE3/52, it trades higher surge margin for compact SMB footprint and lower thermal mass - critical for tight-layout automotive modules.
Availability
SMBJ90HE3/52 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor nodes, telecom power inputs, and consumer appliance motor drives requiring stable component supply with AEC-Q101 assurance.
Supply support for SMBJ90HE3/52 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, power efficiency, and automotive-grade validation.
The SMBJ series targets high-reliability transient suppression in harsh environments, with SMBJ90HE3/52 specifically engineered for AEC-Q101-compliant 90 V DC power rail protection in automotive and industrial systems.
FAQ
What is the clamping voltage of SMBJ90HE3/52 at its rated peak pulse current?
The SMBJ90HE3/52 has a maximum clamping voltage (VC) of 146 V at its specified peak pulse current (IPPM) of 4.1 A using the 10/1000 µs waveform. This value is measured under standardized test conditions with 0.2" × 0.2" copper pads and confirms the device's ability to limit transient overvoltage to a safe level for downstream 100 V-rated components. The SMBJ90HE3/52 maintains this clamping performance across its full operating temperature range.
Is SMBJ90HE3/52 qualified for automotive use?
Yes, SMBJ90HE3/52 is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation in the SMBJ5.0A–SMBJ188A datasheet (Document Number: 88392, Revision: 09-Jan-2024). This qualification covers stress tests including temperature cycling, humidity bias, and mechanical shock - validating SMBJ90HE3/52 for deployment in automotive power domains such as infotainment, body electronics, and ADAS subsystems.
What is the standoff voltage rating of SMBJ90HE3/52, and how does it relate to system design?
The standoff voltage (VWM) of SMBJ90HE3/52 is 90 V - the maximum continuous reverse voltage the device can block without significant leakage. In system design, this value must exceed the normal operating voltage of the protected line (e.g., a nominal 72 V automotive rail) with sufficient margin to accommodate ripple and tolerance. The SMBJ90HE3/52's 90 V VWM makes it appropriate for 72–90 V DC systems where transient suppression is needed without false triggering during steady-state operation.
Does SMBJ90HE3/52 have bidirectional capability?
No, SMBJ90HE3/52 is a unidirectional TVS diode, as indicated by its "A" suffix and cathode band marking. It conducts only in reverse bias above its breakdown voltage and blocks forward current like a standard diode. For bidirectional protection (e.g., AC signal lines), Vishay offers the SMBJ90CA variant. The SMBJ90HE3/52 is intended for DC rail protection where polarity is fixed and ground-referenced clamping is required.
What package type does SMBJ90HE3/52 use, and what are its mounting requirements?
SMBJ90HE3/52 uses the SMB (DO-214AA) surface-mount package - a low-profile, rectangular case with gull-wing leads. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for thermal and mechanical reliability, per Vishay's datasheet recommendations. The SMBJ90HE3/52 is compatible with standard SMT reflow profiles, including lead-free processes up to 260 °C peak temperature (MSL Level 1).
SMBJ90HE3/52 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ90HE3/52 FAQ
1.How can I place an order for SMBJ90HE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ90HE3/52 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 SMBJ90HE3/52 reliable?
The price and inventory of SMBJ90HE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ90HE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ90HE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ90HE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ90HE3/52?
SMBJ90HE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ90HE3/52 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 SMBJ90HE3/52?
For technical support, including SMBJ90HE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ90HE3/52 requirements.
6.How does Aetrix verify that SMBJ90HE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ90HE3/52 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 SMBJ90HE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ90HE3/52?
All SMBJ90HE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ90HE3/52, 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 SMBJ90HE3/52 part is unused and in its original packaging.
Return procedure for SMBJ90HE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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