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Vishay General Semiconductor - Diodes Division SMBJ90CHE3/5B
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- Part No.:
- SMBJ90CHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ90CHE3/5B.pdf
- Description:
- TVS DIODE 90VWM 160VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,624
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Product details
Overview
SMBJ90CHE3/5B 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), 100 V minimum breakdown voltage (VBR), 146 V maximum clamping voltage (VC) at 4.1 A peak pulse current (IPPM), and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive power supply inputs, industrial sensor interfaces, and telecom line protection.
For engineers reviewing the SMBJ90CHE3/5B datasheet, SMBJ90CHE3/5B pinout, SMBJ90CHE3/5B application, or SMBJ90CHE3/5B equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (–55 to +150 °C), and real-world clamping behavior under surge conditions.
Technical Context
The SMBJ90CHE3/5B operates as a unidirectional avalanche diode, leveraging glass-passivated silicon junction technology to achieve sub-nanosecond response time and low incremental surge resistance. Its clamping action begins at VBR ≥ 100 V (tested at 1 mA), limiting transient voltages to ≤146 V at 4.1 A IPPM while dissipating up to 600 W in short-duration pulses.
Designed for mounting on 0.2" × 0.2" copper pads, it exhibits RθJL = 20 °C/W junction-to-lead thermal resistance and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. The HE3 suffix confirms RoHS-compliance and AEC-Q101 qualification for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA; defines safe DC rail protection threshold |
| VBR (min) | 100 V - minimum breakdown voltage at 1 mA test current; ensures reliable turn-on during transients above system operating voltage |
| VC (max) | 146 V - maximum clamped voltage at 4.1 A IPPM (10/1000 µs); determines worst-case stress on downstream ICs |
| PPPM | 600 W - peak pulse power handling capability; enables protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) |
| TJ max | +150 °C - maximum junction temperature; supports operation in under-hood automotive and high-ambient industrial environments |
| RθJA | 100 °C/W - thermal resistance junction-to-ambient on standard PCB pad layout; informs derating requirements above 25 °C ambient |
| AEC-Q101 | Qualified - validated for automotive applications including engine control units, body electronics, and ADAS power domains |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity marked by cathode band. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), with matte tin-plated leads solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected circuit (e.g., GND or return path); conducts during forward surge events |
| Cathode | Reverse-biased clamping terminal | Connected to higher-potential side (e.g., +12 V rail); avalanches into conduction when transient exceeds VBR, shunting energy to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use per stress test requirements - enables deployment in ECU, infotainment, and ADAS without additional qualification |
| 600 W peak pulse power | Withstands 10/1000 µs surges up to 4.1 A - sufficient for ISO 7637-2 Pulse 1/2/5a and IEC 61000-4-5 combination wave testing |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes voltage overshoot during clamping - reduces risk of latch-up or damage to 100 V-rated MOSFETs and gate drivers |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profile (peak 260 °C) - eliminates baking requirements and simplifies SMT manufacturing |
| Glass passivated junction | Enhances long-term stability and leakage performance across temperature and humidity - critical for 15-year automotive service life |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: 12 V battery-fed ECUs exposed to load dump (ISO 16750-2) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor to clamp transients before LDO or DC-DC converter. Use Value: Limits voltage to ≤146 V during 35 V/100 ms load dump event, preventing overvoltage failure of downstream 36 V-input regulators. |
Use Scenario: 4–20 mA current loop interface in PLC analog input modules subjected to field wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: TVS mounted across signal and return lines to absorb ±8 kV contact ESD (IEC 61000-4-2) and 100 V inductive spikes. Use Value: Clamps transients within 1 ns, preserving signal integrity and avoiding false triggering of ADC front-end op-amps. |
| Telecom DC Power Feeds | Motor Drive Gate Driver Protection |
|
Use Scenario: -48 V DC power input to base station RF modules encountering lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Unidirectional TVS installed at board edge, referenced to chassis ground, upstream of primary DC-DC conversion stage. Use Value: Handles 600 W surge energy without degradation, maintaining <1 µA leakage at –48 V to avoid standby power drain. |
Use Scenario: High-side gate driver supply (e.g., bootstrap capacitor node) in 3-phase inverter subject to shoot-through induced voltage spikes. IC Role / Device Role / Timing Role: TVS placed between gate driver VDD and COM to clamp negative-going transients caused by Miller coupling during fast switching. Use Value: Withstands 100 A IFSM surge (8.3 ms half-sine), protecting gate driver ICs from destructive overvoltage during fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90AHE3/5B | No AEC-Q101 qualification; identical electrical specs and package | Restricted to commercial/industrial use; not approved for automotive production | Select SMBJ90AHE3/5B only if automotive qualification is unnecessary and cost optimization is prioritized |
| SMCJ90AHE3/5B | Higher 1500 W PPPM rating, larger SMC (DO-214AB) package, same VWM/VBR/VC | Requires larger PCB footprint and different pad layout; suited for higher-energy surge environments | Choose SMCJ90AHE3/5B when system-level surge testing exceeds IEC 61000-4-5 Level 4 or requires >600 W margin |
Compared with SMBJ90AHE3/5B, the SMBJ90CHE3/5B adds AEC-Q101 validation for automotive deployment without altering electrical performance; versus SMCJ90AHE3/5B, it trades surge capacity for compact SMB footprint - enabling space-constrained designs where 600 W suffices.
Availability
SMBJ90CHE3/5B is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power feed protection requiring stable component supply across multi-year production cycles.
Supply support for SMBJ90CHE3/5B 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, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The SMBJ series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure - engineered for consistent clamping performance, low leakage, and extended thermal endurance under repetitive surge stress.
FAQ
What is the clamping voltage of SMBJ90CHE3/5B at its rated peak pulse current?
The SMBJ90CHE3/5B has a maximum clamping voltage (VC) of 146 V at 4.1 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuits during surge events. The SMBJ90CHE3/5B maintains this clamping performance across its full operating temperature range and after repeated surge exposures, as confirmed in Vishay's AEC-Q101 qualification report.
Is SMBJ90CHE3/5B suitable for automotive applications?
Yes, SMBJ90CHE3/5B is AEC-Q101 qualified, making it suitable for automotive applications including engine control units, body control modules, and ADAS power domains. The HE3 suffix explicitly denotes RoHS-compliance and automotive qualification. Its –55 °C to +150 °C operating junction temperature range, MSL Level 1 rating, and validated surge endurance meet OEM requirements for under-hood and cabin-mounted electronics.
How does the SMBJ90CHE3/5B differ from the non-HE3 version SMBJ90A-E3/5B?
The SMBJ90CHE3/5B differs from SMBJ90A-E3/5B solely in AEC-Q101 qualification - both share identical electrical specifications (VWM = 90 V, VBR min = 100 V, VC max = 146 V), package (SMB/DO-214AA), and thermal characteristics. The HE3 suffix indicates additional stress testing per AEC-Q101, including temperature cycling, HTRB, and surge lifetime validation. SMBJ90CHE3/5B is required for automotive production; SMBJ90A-E3/5B is limited to commercial/industrial use.
What is the maximum reverse leakage current of SMBJ90CHE3/5B at rated stand-off voltage?
The SMBJ90CHE3/5B exhibits a maximum reverse leakage current (ID) of 1.0 µA at its rated stand-off voltage (VWM) of 90 V and TA = 25 °C. This low leakage ensures minimal power loss in always-on systems such as automotive always-live circuits and battery-backed sensors. Leakage remains below 5 µA up to +125 °C, supporting reliable operation in high-temperature environments without compromising system efficiency.
Can SMBJ90CHE3/5B be used in bidirectional protection circuits?
No, SMBJ90CHE3/5B is a unidirectional TVS diode and must not be used in bidirectional applications. Its cathode band marking and internal structure support clamping only for positive transients relative to the anode. For bidirectional protection, Vishay specifies the CA-suffix variant (e.g., SMBJ90CAHE3/5B), which provides symmetrical clamping in both polarities. Using SMBJ90CHE3/5B in place of a bidirectional device risks failure during negative-going transients.
SMBJ90CHE3/5B 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:
- -
- Bidirectional Channels:
- 1
- 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)
SMBJ90CHE3/5B FAQ
1.How can I place an order for SMBJ90CHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ90CHE3/5B 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 SMBJ90CHE3/5B reliable?
The price and inventory of SMBJ90CHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ90CHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ90CHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ90CHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ90CHE3/5B?
SMBJ90CHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ90CHE3/5B 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 SMBJ90CHE3/5B?
For technical support, including SMBJ90CHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ90CHE3/5B requirements.
6.How does Aetrix verify that SMBJ90CHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ90CHE3/5B 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 SMBJ90CHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ90CHE3/5B?
All SMBJ90CHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ90CHE3/5B, 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 SMBJ90CHE3/5B part is unused and in its original packaging.
Return procedure for SMBJ90CHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ90CHE3/5B Tags
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