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Vishay General Semiconductor - Diodes Division SMBJ150CAHE3_B/I
- Part No.:
- SMBJ150CAHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ150CAHE3_B/I.pdf
- Description:
- 600W,150V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,228
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Product details
Overview
SMBJ150CAHE3_B/I 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 150 V standoff voltage (VWM), 167–185 V breakdown range (VBR), 600 W peak pulse power (10/1000 µs), and clamps to ≤243 V at 2.5 A peak surge current - deployed in industrial sensor interfaces and telecom power rails.
For engineers reviewing the SMBJ150CAHE3_B/I datasheet, SMBJ150CAHE3_B/I pinout, SMBJ150CAHE3_B/I application, or SMBJ150CAHE3_B/I equivalent, this device serves as a robust, AEC-Q101-qualified transient protector for bidirectional DC bus and AC-coupled signal lines where low clamping voltage, fast response (<1 ns), and MSL Level 1 reflow compatibility are critical selection criteria.
Technical Context
This TVS operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC signals or floating differential buses without polarity concerns. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and repeatable clamping performance across temperature (–55 °C to +150 °C).
The device uses a 10/1000 µs double-exponential surge waveform standard per ANSI/IEEE C62.35, with thermal resistance RθJA = 100 °C/W and RθJL = 20 °C/W - confirming suitability for PCB layouts with minimal copper pad area (0.2" × 0.2") and no heatsink required for single-pulse events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - maximum continuous reverse operating voltage before conduction begins; defines safe working range for protected circuit. |
| VBR min/max | 167 V / 185 V at IT = 1 mA - guaranteed breakdown onset window; ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 243 V at 2.5 A - clamped voltage under full-rated 600 W surge; determines worst-case stress on downstream components. |
| PPPM | 600 W (10/1000 µs) - peak transient energy handling capacity; supports IEC 61000-4-5 Level 4 surge immunity compliance. |
| ID @ VWM | ≤1.0 µA - ultra-low reverse leakage at rated standoff; prevents measurable power loss or bias shift in high-impedance circuits. |
| TJ max | +150 °C - maximum junction temperature rating; enables operation in under-hood automotive or enclosed industrial enclosures. |
| MSL Level | Level 1 (J-STD-020) - unrestricted floor life and 260 °C peak reflow compatibility; supports standard SMT assembly without dry-pack requirements. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode / Anode (both ends) | Reversible transient conduction path | Identical terminals; either end connects to protected line - eliminates orientation errors during placement. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements - supports OEM qualification without additional screening. |
| 600 W peak pulse power | Withstands 10/1000 µs surges up to 2.5 A - meets IEC 61000-4-5 Ed. 3 surge immunity for industrial equipment. |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage over 10+ years field life - critical for unattended infrastructure systems. |
| Low-profile SMB package | Height ≤0.096" (2.44 mm); compatible with automated pick-and-place and dense PCB layouts in telecom modules. |
| RoHS-compliant & halogen-free option | HE3 suffix denotes RoHS-compliant construction; HM3 variant adds halogen-free molding compound for strict environmental compliance. |
Applications
| Industrial Sensor Interface | Telecom DC Power Bus |
|---|---|
Use Scenario: Protecting RS-485 transceivers and analog sensor outputs against ESD and inductive switching spikes in factory automation PLCs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt transients before reaching signal conditioning ICs. Use Value: Limits voltage excursion to ≤243 V during 1 kV/0.5 kΩ IEC 61000-4-2 contact discharge, preserving ADC reference integrity and isolator lifetime. |
Use Scenario: Safeguarding 48 V DC distribution rails in base station power supplies against lightning-induced surges and hot-swap transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp parallel to bulk capacitor, activated within <1 ns to suppress >100 V overshoot events. Use Value: Maintains rail stability during 2 kV ring wave (IEC 61000-4-5) by clamping to 243 V - preventing MOSFET gate oxide failure and controller latch-up. |
| Automotive Body Control Module | Consumer Appliance Motor Drive |
Use Scenario: Protecting LIN bus nodes and LED driver inputs in door module ECUs exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: AEC-Q101-qualified bidirectional TVS mounted at harness interface to absorb coupled transients before CAN/LIN transceivers. Use Value: Survives repetitive 12 V system load dump pulses (ISO 7637-2 Pulse 5a) with no parameter shift - validated per AEC-Q101 stress conditions. |
Use Scenario: Shielding microcontroller GPIOs and H-bridge gate drivers in smart washing machine motor control boards from brush-commutator noise. IC Role / Device Role / Timing Role: Localized transient suppressor across motor phase traces and MCU supply pins to prevent false resets and gate driver misfiring. Use Value: Clamps 600 V spikes from inductive kickback to <243 V in <1 ns - eliminating firmware crashes and MOSFET avalanche failures during stall conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA-E3/52 | Same electrical specs, RoHS-compliant but not AEC-Q101 qualified; packaged in 7" tape/reel (750 pcs). | Lacks automotive qualification; suitable only for commercial/industrial use where AEC-Q101 is not mandated. | Select when cost sensitivity outweighs automotive reliability requirements and volume demand fits 750-unit reels. |
| SMBJ150CAHM3_B/I | Identical ratings and AEC-Q101 qualification; halogen-free molding compound replaces standard epoxy. | Required for EU medical or green-certified consumer products mandating halogen-free materials. | Choose when regulatory compliance (e.g., IEC 61249-2-21) requires halogen-free construction without sacrificing performance. |
Compared with SMBJ150CAHE3_B/I, the E3 variant trades automotive qualification for lower cost in non-automotive designs, while the HM3 variant adds halogen-free compliance for regulated markets - neither offers pin-to-pin or functional differentiation beyond material and qualification scope.
Availability
SMBJ150CAHE3_B/I is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom DC power buses, and automotive body control modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ150CAHE3_B/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, rectifiers, and protection devices with emphasis on reliability, precision, and application-specific validation.
The SMBJ series targets high-energy transient suppression in harsh environments - engineered for automotive, industrial, and telecom systems where consistent clamping, low leakage, and AEC-Q101 compliance are mandatory.
FAQ
What is the standoff voltage rating of SMBJ150CAHE3_B/I?
The SMBJ150CAHE3_B/I has a maximum reverse standoff voltage (VWM) of 150 V - meaning it remains non-conductive up to this DC or RMS voltage level under normal operation. This value ensures compatibility with 125 VAC-derived rails and 48 VDC industrial buses while providing margin before breakdown at 167–185 V.
Is SMBJ150CAHE3_B/I suitable for automotive applications?
Yes, SMBJ150CAHE3_B/I is AEC-Q101 qualified, making it suitable for automotive body electronics, infotainment power supplies, and LIN/CAN node protection. Its qualification covers temperature cycling, humidity testing, and mechanical shock - confirmed per Vishay's automotive-grade documentation for the HE3 suffix variant.
What does the "CA" suffix indicate in SMBJ150CAHE3_B/I?
The "CA" suffix in SMBJ150CAHE3_B/I designates a bidirectional configuration - meaning the device clamps voltage transients equally in both polarities. Unlike unidirectional variants (e.g., SMBJ150A), it requires no cathode/anode orientation during PCB layout, simplifying design for AC-coupled or floating signal paths.
What is the peak pulse current rating for SMBJ150CAHE3_B/I?
The SMBJ150CAHE3_B/I supports a peak pulse current (IPPM) of 2.5 A under the standard 10/1000 µs waveform - derived from its 600 W peak pulse power rating and 243 V clamping voltage (VC). This value is verified per Figure 1 and Table 1 in Vishay Document 88392.
Does SMBJ150CAHE3_B/I require special PCB layout considerations?
No special layout is required beyond Vishay's recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal - which optimize thermal dissipation and surge current handling. The SMB (DO-214AA) footprint is industry-standard, and the bidirectional nature eliminates polarity alignment checks during routing or placement of SMBJ150CAHE3_B/I.
SMBJ150CAHE3_B/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 243V
- Current - Peak Pulse (10/1000µs):
- 2.5A
- 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)
SMBJ150CAHE3_B/I FAQ
1.How can I place an order for SMBJ150CAHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ150CAHE3_B/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 SMBJ150CAHE3_B/I reliable?
The price and inventory of SMBJ150CAHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ150CAHE3_B/I is usually 5 days.
3.What payment methods are accepted for SMBJ150CAHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ150CAHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ150CAHE3_B/I?
SMBJ150CAHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ150CAHE3_B/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 SMBJ150CAHE3_B/I?
For technical support, including SMBJ150CAHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ150CAHE3_B/I requirements.
6.How does Aetrix verify that SMBJ150CAHE3_B/I is sourced from the original manufacturer or authorized distributors?
All SMBJ150CAHE3_B/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 SMBJ150CAHE3_B/I meets industry standards.
7.What is the process for return or replacement of SMBJ150CAHE3_B/I?
All SMBJ150CAHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ150CAHE3_B/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 SMBJ150CAHE3_B/I part is unused and in its original packaging.
Return procedure for SMBJ150CAHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ150CAHE3_B/I Tags
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