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Vishay General Semiconductor - Diodes Division SMBJ90CAHE3_A/H
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- Part No.:
- SMBJ90CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ90CAHE3_A/H.pdf
- Description:
- TVS DIODE 90VWM 146VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,816
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Product details
Overview
SMBJ90CAHE3_A/H from Vishay General Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. 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 on power rails and signal lines in industrial motor drives and telecom interface circuits.
For engineers reviewing the SMBJ90CAHE3_A/H datasheet, SMBJ90CAHE3_A/H pinout, SMBJ90CAHE3_A/H application, or SMBJ90CAHE3_A/H equivalent, this device is selected for high-energy surge immunity in AEC-Q101-qualified automotive subsystems, industrial I/O modules, and Ethernet PHY protection where low clamping ratio (<1.63×VWM) and sub-nanosecond response time are critical.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling single-device protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable leakage (<1.0 µA at 90 V) and repeatable clamping performance under repetitive transients.
The device delivers 600 W peak pulse power handling per 10/1000 µs waveform with 0.01% duty cycle, supported by low incremental surge resistance and thermal resistance of 100 °C/W (junction-to-ambient) on standard 5.0 mm × 5.0 mm copper pads - enabling reliable operation up to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (min) | 100 V at 1 mA test current - Guaranteed breakdown initiation point; ensures predictable turn-on during fast transients. |
| VC (max) | 146 V at 4.1 A IPPM - Peak clamped voltage seen by protected circuit; limits stress on downstream ICs like RS-485 transceivers. |
| PPPM | 600 W - Surge energy absorption capacity with 10/1000 µs waveform; sufficient for IEC 61000-4-5 Level 4 (4 kV) compliance testing. |
| ID (max) | 1.0 µA at VWM - Ultra-low reverse leakage preserves signal integrity and minimizes standby power loss in battery-powered sensors. |
| TJ max | +150 °C - Maximum junction temperature rating; supports operation in under-hood automotive and industrial control cabinet environments. |
| 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), bidirectional configuration - no polarity marking; symmetrical terminals function as anode and cathode interchangeably depending on transient polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal conducts when reverse-biased beyond VBR; no fixed polarity enables AC line or differential pair protection. |
| Terminal 2 | Anode/Cathode (bidirectional) | Identical role to Terminal 1; device behaves identically regardless of orientation in PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; suitable for engine control units and ADAS sensor interfaces. |
| 600 W peak pulse power | Withstands high-energy surges such as inductive kickback from solenoid drivers or lightning-induced transients on telecom lines. |
| Low clamping ratio (1.62×VWM) | Minimizes voltage overshoot during clamping - critical for protecting 100 V-rated MOSFETs and isolated gate drivers. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns; eliminates pre-bake requirement. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal stress and humidity exposure in industrial enclosures. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of gate driver supply rails against inductive switching spikes from BLDC motor windings. IC Role / Device Role / Timing Role: Bidirectional TVS placed between VDD and GND near half-bridge driver ICs to clamp voltage excursions exceeding 90 V. Use Value: Limits transient voltage to ≤146 V, preventing latch-up or oxide breakdown in 100 V-rated SiC gate drivers. |
Use Scenario: Surge suppression on LIN bus lines exposed to load dump and jump-start conditions in vehicle door modules. IC Role / Device Role / Timing Role: Parallel-connected TVS on LIN transceiver pins to absorb 10/1000 µs pulses up to 600 W without degradation. Use Value: Maintains <1.0 µA leakage at 90 V, ensuring bus idle voltage stability and avoiding false wake-up events. |
| Telecom Power Feeds | Industrial PLC Analog Inputs |
|
Use Scenario: Overvoltage protection on -48 V DC telecom power distribution boards subject to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamping device across input terminals to shunt surge current away from upstream DC/DC converters. Use Value: Clamps to 146 V within <1 ns, preserving converter input stage integrity during IEC 61000-4-5 4 kV tests. |
Use Scenario: Input protection for 4–20 mA current loop receivers connected to field transmitters in hazardous areas. IC Role / Device Role / Timing Role: TVS mounted directly at connector entry point to divert surge energy before reaching precision op-amp front-end. Use Value: 100 V VBR minimum ensures no conduction during normal 24 V loop operation while clamping 1 kV transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90CA-M3/52 | Same electrical specs and SMB package; halogen-free, RoHS-compliant, commercial grade (non-AEC-Q101). | Lacks automotive qualification; not recommended for under-hood or safety-critical ECUs. | Select when cost-sensitive industrial designs require identical clamping but no automotive reliability validation. |
| SMCJ90CAHE3_A/H | Higher 1500 W PPPM rating in larger SMC (DO-214AB) package; same VWM/VC values. | Requires larger PCB area and higher thermal mass; suited for higher-energy surge environments (e.g., AC mains inputs). | Choose when system-level surge testing exceeds 600 W requirements or when board layout allows larger footprint. |
Compared with SMBJ90CAHE3_A/H, SMBJ90CA-M3/52 offers identical protection performance without AEC-Q101 validation, while SMCJ90CAHE3_A/H provides 2.5× higher surge capacity in a physically larger package - enabling tiered design choices based on reliability tier and energy threat level.
Availability
SMBJ90CAHE3_A/H is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power feeds requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ90CAHE3_A/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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series was engineered for high-reliability transient suppression in space-constrained surface-mount applications - targeting automotive, industrial, and telecom systems needing AEC-Q101-qualified, low-leakage, fast-response TVS solutions.
FAQ
What does the "CA" suffix indicate in SMBJ90CAHE3_A/H?
The "CA" suffix denotes a bidirectional configuration, meaning SMBJ90CAHE3_A/H provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., SMBJ90A), it has no polarity marking and functions identically regardless of terminal orientation - ideal for AC signal lines, differential buses, or floating power domains where polarity reversal may occur.
Is SMBJ90CAHE3_A/H suitable for automotive applications?
Yes, SMBJ90CAHE3_A/H is AEC-Q101 qualified, with validation across temperature cycling, highly accelerated life testing, and ESD robustness. Its 150 °C maximum junction temperature, MSL Level 1 rating, and stable leakage (<1.0 µA at 90 V) make SMBJ90CAHE3_A/H appropriate for body electronics, infotainment power supplies, and sensor interfaces in passenger vehicles - provided layout follows Vishay's recommended 5.0 mm × 5.0 mm copper pad guidelines.
How does the clamping voltage of SMBJ90CAHE3_A/H compare to its standoff voltage?
SMBJ90CAHE3_A/H has a 90 V standoff voltage (VWM) and a maximum clamping voltage (VC) of 146 V at 4.1 A peak pulse current - yielding a clamping ratio of 1.62×VWM. This tight ratio ensures protected circuits experience minimal overvoltage during surge events, critical for safeguarding 100 V-rated components like gate drivers and isolated DC/DC controllers without derating headroom.
What is the peak pulse current rating for SMBJ90CAHE3_A/H?
The peak pulse current (IPPM) for SMBJ90CAHE3_A/H is 4.1 A under the standard 10/1000 µs double-exponential waveform. This value is derived from its 600 W peak pulse power rating and 146 V clamping voltage (IPPM = PPPM / VC). The device maintains this rating with 0.01% duty cycle and requires proper PCB copper thermal relief to sustain repetitive surges.
Does SMBJ90CAHE3_A/H require special PCB layout considerations?
Yes - optimal performance of SMBJ90CAHE3_A/H depends on mounting each terminal to a minimum 5.0 mm × 5.0 mm copper pad, as specified in Vishay's datasheet. Smaller pads increase thermal resistance, reducing surge current capability and risking thermal runaway. Additionally, placement must minimize trace inductance between SMBJ90CAHE3_A/H and the protected node - ideally within 5 mm - to preserve sub-nanosecond response effectiveness.
SMBJ90CAHE3_A/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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ90CAHE3_A/H FAQ
1.How can I place an order for SMBJ90CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ90CAHE3_A/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 SMBJ90CAHE3_A/H reliable?
The price and inventory of SMBJ90CAHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ90CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMBJ90CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ90CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ90CAHE3_A/H?
SMBJ90CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ90CAHE3_A/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 SMBJ90CAHE3_A/H?
For technical support, including SMBJ90CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ90CAHE3_A/H requirements.
6.How does Aetrix verify that SMBJ90CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMBJ90CAHE3_A/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 SMBJ90CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMBJ90CAHE3_A/H?
All SMBJ90CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ90CAHE3_A/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 SMBJ90CAHE3_A/H part is unused and in its original packaging.
Return procedure for SMBJ90CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ90CAHE3_A/H Tags
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