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Vishay General Semiconductor - Diodes Division SMBJ90CAHE3/5B
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- Part No.:
- SMBJ90CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ90CAHE3/5B.pdf
- Description:
- TVS DIODE 90VWM 146VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,510
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Product details
Overview
SMBJ90CAHE3/5B from Vishay General Semiconductor is a bidirectional 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 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 SMBJ90CAHE3/5B datasheet, SMBJ90CAHE3/5B pinout, SMBJ90CAHE3/5B application, or SMBJ90CAHE3/5B equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping performance regardless of transient polarity. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the 150 °C maximum junction temperature supports operation in harsh thermal environments.
The device meets J-STD-020 MSL Level 1 moisture sensitivity and withstands 260 °C lead-free reflow peak temperature. Its 20 °C/W junction-to-lead thermal resistance enables effective heat transfer to PCB copper pads, supporting repetitive surge handling under 0.01% duty cycle conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (min) | 100 V at 1 mA - Guaranteed breakdown threshold ensures reliable overvoltage detection |
| VC (max) | 146 V at IPPM = 4.1 A - Clamped voltage limits stress on downstream ICs during surge events |
| PPPM | 600 W (10/1000 µs) - Peak transient energy absorption capacity for lightning and ESD-like surges |
| ID (max) | 1.0 µA - Ultra-low reverse leakage preserves signal integrity in high-impedance circuits |
| RθJA | 100 °C/W - Thermal resistance defines safe power derating above 25 °C ambient |
| TJ max. | +150 °C - Enables use in under-hood automotive and industrial control enclosures |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode / Anode (symmetrical) | Bidirectional surge path | No polarity designation; terminals interchangeable - enables single-component protection on AC or differential lines |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements - suitable for engine control, ADAS sensor interfaces |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation when mounted per recommended pad layout |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., inductive switch-off), improving clamping fidelity |
| MSL Level 1 rating | Zero floor life limitation - can be stored indefinitely before reflow without baking preconditioning |
| Glass passivated junction | Ensures long-term stability of VBR and leakage parameters across temperature and humidity cycling |
Applications
| Industrial Sensor Interface | Telecom Line Protection |
|---|---|
|
Use Scenario: Protecting RS-485 transceivers and analog sensor outputs from induced transients in factory automation cabinets. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across differential pair or supply rail to limit voltage excursions. Use Value: Maintains signal integrity by clamping to ≤146 V during 10/1000 µs surges, preventing latch-up or damage to 3.3 V/5 V interface ICs. |
Use Scenario: Shielding Ethernet PHY ports and DSL line drivers from lightning-induced surges in outdoor telecom equipment. IC Role / Device Role / Timing Role: Primary front-end transient suppressor on unshielded twisted-pair lines entering building premises. Use Value: Absorbs up to 600 W of surge energy without failure, meeting Telcordia GR-1089-CORE Level 3 requirements for central office gear. |
| Automotive Body Control Module | Power Supply Input Stage |
|
Use Scenario: Safeguarding LIN bus nodes and LED driver inputs against load dump and ISO 7637-2 pulse 5a/b in vehicle body electronics. IC Role / Device Role / Timing Role: Secondary-level TVS on 12 V supply rails feeding microcontrollers and CAN/LIN transceivers. Use Value: AEC-Q101 qualification confirms reliability under automotive thermal cycling (-40 °C to +125 °C) and vibration profiles. |
Use Scenario: Suppressing switching noise and input surges on DC-DC converter inputs in embedded power supplies. IC Role / Device Role / Timing Role: Standoff-rated protector placed between bulk capacitor and upstream connector or rectifier stage. Use Value: 90 V VWM allows use on 72–90 V nominal industrial DC rails while providing margin against sustained overvoltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90CA-M3/5B | Halogen-free, RoHS-compliant variant; identical electrical specs and AEC-Q101 qualification | No difference in circuit performance or thermal behavior; preferred where halogen-free compliance is mandated | Select SMBJ90CA-M3/5B when material declarations require halogen-free status per IEC 61249-2-21 |
| SMCJ90CAHE3/5B | Same VWM/VBR/VC ratings but in larger SMC (DO-214AB) package; 1500 W PPPM rating | Higher power handling enables use in higher-energy surge environments (e.g., AC mains input stages) | Choose SMCJ90CAHE3/5B only if board space permits larger footprint and 1500 W surge margin is required |
Compared with SMBJ90CAHE3/5B, SMBJ90CA-M3/5B offers identical protection performance with halogen-free construction, while SMCJ90CAHE3/5B trades compact SMB size for 2.5× higher surge power - making SMBJ90CAHE3/5B optimal for space-constrained, automotive-grade 90 V rail protection.
Availability
SMBJ90CAHE3/5B is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom line protection, automotive body control modules, and DC power supply input stages requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ90CAHE3/5B 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMBJ series targets robust, surface-mount transient suppression for automotive, industrial, and telecom systems - engineered for high surge immunity, automated assembly compatibility, and AEC-Q101 validation where needed.
FAQ
What is the clamping voltage of SMBJ90CAHE3/5B at its rated peak pulse current?
The SMBJ90CAHE3/5B 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 double-exponential waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is confirmed in the Vishay datasheet revision 09-Jan-2024, page 2.
Is SMBJ90CAHE3/5B suitable for automotive applications?
Yes, SMBJ90CAHE3/5B is AEC-Q101 qualified, as indicated by the "HE3" suffix in its part number. It meets the stress test requirements for automotive electronics including temperature cycling, humidity bias, and mechanical shock - making it appropriate for use in body control modules, infotainment power rails, and sensor interface protection within vehicles.
Does SMBJ90CAHE3/5B have polarity markings on the package?
No, SMBJ90CAHE3/5B is a bidirectional TVS diode and carries no cathode band or polarity marking on the SMB (DO-214AA) case. Its symmetrical construction allows installation in either orientation across differential lines or AC-coupled paths without functional impact - a key advantage over unidirectional variants like SMBJ90AHE3/5B.
What is the maximum reverse leakage current for SMBJ90CAHE3/5B at 90 V?
The SMBJ90CAHE3/5B exhibits a maximum reverse leakage current (ID) of 1.0 µA when biased at its 90 V standoff voltage (VWM), tested at TA = 25 °C. This ultra-low leakage preserves signal integrity in high-impedance monitoring circuits and minimizes standby power loss in always-on systems.
How does the SMBJ90CAHE3/5B differ from the unidirectional SMBJ90AHE3/5B?
The SMBJ90CAHE3/5B is bidirectional with symmetrical clamping in both directions and no polarity marking, whereas SMBJ90AHE3/5B is unidirectional with a cathode band and conducts only in forward bias. Electrically, SMBJ90CAHE3/5B has identical VWM (90 V), VBR (100–111 V), and VC (146 V) ratings but lacks forward voltage (VF) specification since it has no defined anode/cathode conduction path.
SMBJ90CAHE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ90CAHE3/5B FAQ
1.How can I place an order for SMBJ90CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ90CAHE3/5B 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 SMBJ90CAHE3/5B reliable?
The price and inventory of SMBJ90CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ90CAHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ90CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ90CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ90CAHE3/5B?
SMBJ90CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ90CAHE3/5B 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 SMBJ90CAHE3/5B?
For technical support, including SMBJ90CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ90CAHE3/5B requirements.
6.How does Aetrix verify that SMBJ90CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ90CAHE3/5B 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 SMBJ90CAHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ90CAHE3/5B?
All SMBJ90CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ90CAHE3/5B, 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 SMBJ90CAHE3/5B part is unused and in its original packaging.
Return procedure for SMBJ90CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ90CAHE3/5B Tags
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