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Vishay General Semiconductor - Diodes Division SMBJ90CAHM3/I
- Part No.:
- SMBJ90CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ90CAHM3/I.pdf
- Description:
- TVS DIODE 90VWM 146VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,069
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Product details
Overview
SMBJ90CAHM3/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping voltage transients on power 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 (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in industrial sensor interfaces and telecom line protection.
For engineers reviewing the SMBJ90CAHM3/I datasheet, SMBJ90CAHM3/I pinout, SMBJ90CAHM3/I application, or SMBJ90CAHM3/I equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, thermal resistance (RθJA = 100 °C/W), AEC-Q101 qualification status, and halogen-free RoHS-compliant construction per JESD201 Class 2 whisker testing.
Technical Context
This device operates as a bidirectional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, enabling fast response (<1 ns) to ESD and lightning-induced surges.
Rated for -55 °C to +150 °C operating junction temperature, it delivers 5.0 W steady-state power dissipation at TA = 50 °C and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. The SMB package supports automated placement and provides UL 94 V-0 flammability compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (min) | 100 V at IT = 1 mA - Ensures reliable conduction onset during overvoltage events |
| VC (max) | 146 V at IPPM = 4.1 A - Limits downstream component stress during 10/1000 µs transients |
| PPPM | 600 W - Sustains high-energy surges typical of inductive switching and lightning coupling |
| ID (max) | 1.0 µA at VWM - Minimizes standby leakage in battery-powered or high-impedance circuits |
| RθJA | 100 °C/W - Defines thermal derating slope for PCB pad layout design (0.2" × 0.2" copper) |
| Package | SMB (DO-214AA) - Surface-mount footprint compatible with standard pick-and-place equipment |
Pinout & Package
Package: SMB (DO-214AA), molded case with matte tin-plated leads, no polarity marking for bidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (bidirectional) | Conducts surge current in either direction; no cathode band marking |
| Cathode | Transient current exit point (bidirectional) | Functionally identical to anode under reverse bias; symmetrical terminal behavior |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 surge currents (4 kV/2 Ω) on 24 V industrial buses |
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics where reliability under thermal cycling is critical |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JEDEC J-STD-201 Class 2 whisker resistance requirements |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking preconditioning |
Applications
| Industrial Sensor Interface | Telecom Line Protection |
|---|---|
|
Use Scenario: Protecting analog output pins of pressure/temperature sensors connected to PLC I/O modules exposed to motor drive noise. IC Role / Device Role / Timing Role: Bidirectional TVS clamping transient spikes induced by nearby contactor switching. Use Value: Prevents latch-up or permanent damage to 24 V loop-powered sensor ICs while maintaining <1 µA leakage at 90 V operating voltage. |
Use Scenario: Shielding RS-485 transceivers on base station backhaul links from lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Fast-response voltage clamp on differential bus lines to limit common-mode excursion below transceiver absolute max ratings. Use Value: Maintains signal integrity during 10/1000 µs surges up to 600 W without degrading 10 Mbps data transmission. |
| Automotive Body Control Module | AC-DC Power Supply Input Stage |
|
Use Scenario: Safeguarding LIN bus transceivers in door module ECUs subjected to load dump and jump-start transients. IC Role / Device Role / Timing Role: Bidirectional suppression of ±100 V transients on 12 V supply rails feeding LIN PHYs. Use Value: AEC-Q101 qualification ensures survival across -40 °C to +125 °C ambient with no parameter drift after 1000 thermal cycles. |
Use Scenario: Clamping input rectifier stage surges in offline SMPS used in LED drivers and industrial HMIs. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing line-to-line and line-to-ground transients before bulk capacitor charging circuitry. Use Value: 146 V clamping voltage prevents overvoltage failure of 200 V-rated bridge rectifiers and primary-side MOSFETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90CAHE3/I | RoHS-compliant but not halogen-free; same electrical specs and AEC-Q101 qualification | Preferred for commercial-grade designs where halogen content is unrestricted | Select when cost optimization is prioritized over halogen-free compliance |
| SMBJ90CA-E3/52 | Same electrical specs, non-AEC-Q101, RoHS-compliant, packaged in 7" tape (750 pcs) | Suitable for consumer electronics with lower reliability requirements | Choose for high-volume production where automotive qualification is unnecessary |
Compared with SMBJ90CAHM3/I, the HE3/I variant omits halogen-free certification but retains AEC-Q101 qualification, while the E3/52 version sacrifices automotive qualification and halogen-free status for lower unit cost and standard packaging - making SMBJ90CAHM3/I the optimal choice for safety-critical, thermally demanding, and environmentally regulated deployments.
Availability
SMBJ90CAHM3/I is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom line protection, automotive body control modules, and AC-DC power supply input stages requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ90CAHM3/I 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and power efficiency.
The SMBJ series targets robust transient suppression in harsh environments - engineered for automotive, industrial, and telecom systems where immunity to ESD, EFT, and surge events is mission-critical.
FAQ
What is the clamping voltage of SMBJ90CAHM3/I at its rated peak pulse current?
The SMBJ90CAHM3/I has a maximum clamping voltage (VC) of 146 V at a peak pulse current (IPPM) of 4.1 A using the 10/1000 µs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ90CAHM3/I maintains this clamping performance across its full operating temperature range.
Is SMBJ90CAHM3/I suitable for automotive applications?
Yes, SMBJ90CAHM3/I is AEC-Q101 qualified, confirming its suitability for automotive applications including body electronics, infotainment power supplies, and LIN/CAN node protection. Its construction meets JESD201 Class 2 whisker resistance, MSL Level 1 handling, and operates reliably from -55 °C to +150 °C junction temperature - all validated per automotive stress test requirements.
How does the bidirectional configuration of SMBJ90CAHM3/I affect its use in circuit design?
The bidirectional configuration of SMBJ90CAHM3/I eliminates polarity marking and enables symmetrical clamping on AC signals, floating lines, or differential buses like RS-485. Unlike unidirectional TVS diodes, SMBJ90CAHM3/I conducts surge current equally in both directions, simplifying layout and avoiding incorrect orientation during assembly - especially valuable in space-constrained or high-density PCBs.
What is the thermal resistance of SMBJ90CAHM3/I, and how does it impact PCB layout?
SMBJ90CAHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value directly informs minimum copper area requirements: reducing pad size increases thermal impedance, risking junction overheating during repetitive surges. For sustained 5.0 W dissipation, designers must ensure adequate copper pour and avoid excessive trace length between SMBJ90CAHM3/I and ground planes.
Does SMBJ90CAHM3/I meet RoHS and halogen-free compliance standards?
Yes, SMBJ90CAHM3/I carries the "HM3" suffix indicating halogen-free, RoHS-compliant construction per EU Directive 2011/65/EU and Vishay's material categorization standard. It also satisfies JESD201 Class 2 whisker resistance testing and UL 94 V-0 flammability rating - confirmed in the official Vishay datasheet document number 88392, revision 09-Jan-2024.
SMBJ90CAHM3/I 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:
- -
- 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:
- 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)
SMBJ90CAHM3/I FAQ
1.How can I place an order for SMBJ90CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ90CAHM3/I 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 SMBJ90CAHM3/I reliable?
The price and inventory of SMBJ90CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ90CAHM3/I is usually 5 days.
3.What payment methods are accepted for SMBJ90CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ90CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ90CAHM3/I?
SMBJ90CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ90CAHM3/I 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 SMBJ90CAHM3/I?
For technical support, including SMBJ90CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ90CAHM3/I requirements.
6.How does Aetrix verify that SMBJ90CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SMBJ90CAHM3/I 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 SMBJ90CAHM3/I meets industry standards.
7.What is the process for return or replacement of SMBJ90CAHM3/I?
All SMBJ90CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ90CAHM3/I, 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 SMBJ90CAHM3/I part is unused and in its original packaging.
Return procedure for SMBJ90CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ90CAHM3/I Tags
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