My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ9.0CAHE3_B/H
- Part No.:
- SMBJ9.0CAHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ9.0CAHE3_B/H.pdf
- Description:
- 600W,9.0V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,058
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ9.0CAHE3_B/H from Vishay General Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping ESD and surge transients on signal/power lines. It features 600 W peak pulse power (10/1000 µs), 9.0 V stand-off voltage (VWM), 15.4 V maximum clamping voltage (VC) at 39.0 A peak pulse current, and operates across -55 °C to +150 °C junction temperature - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMBJ9.0CAHE3_B/H datasheet, SMBJ9.0CAHE3_B/H pinout, SMBJ9.0CAHE3_B/H application, or SMBJ9.0CAHE3_B/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, 100 °C/W junction-to-ambient thermal resistance, low leakage (<1.0 µA at VWM), and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This device implements a glass-passivated silicon avalanche junction optimized for fast response (<1 ns) to transient overvoltages while maintaining stable clamping performance under repetitive 0.01% duty cycle surges. Its bidirectional symmetry ensures identical electrical behavior in both polarities, eliminating polarity-sensitive layout constraints.
The SMBJ9.0CAHE3_B/H meets UL 497B recognition (QVGQ2) and J-STD-020 MSL Level 1 moisture sensitivity, with matte tin-plated leads compliant to J-STD-002 and JESD22-B102. Thermal design relies on its RθJA = 100 °C/W and RθJL = 20 °C/W characteristics when mounted per recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal line operating margin. |
| VBR min/max | 10.0 V / 11.1 V at 1.0 mA test current - Verified breakdown threshold range ensuring consistent turn-on behavior. |
| VC @ IPPM | 15.4 V at 39.0 A - Clamped voltage during 600 W transient; determines protected circuit's maximum stress level. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform; supports IEC 61000-4-5 Level 4 surge immunity. |
| ID @ VWM | <1.0 µA - Reverse leakage current at stand-off voltage; ensures minimal signal loading in high-impedance paths. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive and industrial environments. |
| Package | SMB (DO-214AA) - Low-profile surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | One terminal of symmetrical avalanche junction; conducts during positive transients relative to cathode reference. |
| Cathode | Transient current entry (negative half-cycle) | Second terminal of symmetrical junction; conducts during negative transients - functionally identical to anode in bidirectional mode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges up to 4 kV without degradation. |
| Low clamping ratio (VC/VBR ≈ 1.40) | Minimizes overvoltage exposure to downstream ICs compared to higher-ratio TVS devices. |
| MSL Level 1 rating | Enables standard reflow soldering without pre-baking; compatible with high-volume SMT assembly. |
| Glass passivated junction | Ensures long-term reliability and stable VBR drift under thermal cycling and humidity stress. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt transients before reaching signal conditioning circuitry. Use Value: Maintains signal integrity below 15.4 V clamping threshold while supporting AEC-Q101-compliant system certification. |
Use Scenario: Safeguarding PLC digital input modules against induced surges from relay coil switching and motor drive noise. IC Role / Device Role / Timing Role: Primary transient suppression element across 24 V DC input terminals, coordinated with upstream fuse and filtering. Use Value: Enables robust operation in harsh factory environments with repeated 600 W surge exposure and ambient temperatures up to +85 °C. |
| Telecom Line Interface | Consumer Power Adapter Input |
|
Use Scenario: Shielding Ethernet PHY front-end and PoE controller inputs from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-stage protector in multi-level architecture, absorbing bulk energy before secondary TVS or MOV stages. Use Value: Provides sub-1 ns response time and <1.0 µA leakage to preserve signal fidelity on 100BASE-TX differential pairs. |
Use Scenario: Input-side surge protection in AC-DC adapters for smart home devices subjected to mains-borne transients. IC Role / Device Role / Timing Role: Standoff-rated clamping device across primary-side rectifier output, coordinating with X/Y capacitors. Use Value: Delivers UL 497B recognition and 9.0 V VWM margin above nominal 5–12 V DC output rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CAHM3_B/H | Halogen-free, RoHS-compliant variant with identical electrical specs and AEC-Q101 qualification. | No functional difference; selected where halogen-free material compliance is mandated by OEM specifications. | Choose SMBJ9.0CAHM3_B/H when environmental compliance requires halogen-free packaging without compromising performance. |
| SMBJ9.0CA-E3/52 | Commercial-grade (non-AEC-Q101), same SMB package and electrical parameters; different tape-and-reel packaging (750 pcs/reel, 7" reel). | Not qualified for automotive use; suitable for cost-sensitive consumer or industrial applications with lower reliability requirements. | Select SMBJ9.0CA-E3/52 for non-automotive designs where AEC-Q101 is not required and standard commercial grade suffices. |
Compared with SMBJ9.0CAHE3_B/H, the HM3 variant adds halogen-free compliance without altering clamping behavior or thermal limits, while the E3/52 version removes automotive qualification and changes packaging - enabling trade-offs between regulatory compliance, application environment, and supply chain logistics.
Availability
SMBJ9.0CAHE3_B/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and telecom line surge suppression requiring stable component supply and AEC-Q101 traceability.
Supply support for SMBJ9.0CAHE3_B/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific optimization.
The SMBJ series targets high-energy transient suppression in space-constrained PCB layouts, with design focus on automotive, industrial, and telecom systems demanding repeatable clamping performance and extended temperature operation.
FAQ
What is the clamping voltage of SMBJ9.0CAHE3_B/H at its rated peak pulse current?
The SMBJ9.0CAHE3_B/H has a maximum clamping voltage (VC) of 15.4 V at its specified peak pulse current (IPPM) of 39.0 A, measured using the standardized 10/1000 µs 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. The SMBJ9.0CAHE3_B/H maintains this clamping performance across its full operating temperature range.
Is SMBJ9.0CAHE3_B/H qualified for automotive applications?
Yes, SMBJ9.0CAHE3_B/H is AEC-Q101 qualified, as indicated by the "HE3" suffix in its part number and confirmed in the Vishay ordering information table (page 3). This qualification validates its suitability for automotive use cases including engine control units, body electronics, and ADAS sensor interfaces where reliability under thermal cycling, vibration, and extended temperature operation is mandatory. The SMBJ9.0CAHE3_B/H meets all stress test requirements defined in the AEC-Q101 standard.
What does the "CA" suffix indicate in SMBJ9.0CAHE3_B/H?
The "CA" suffix in SMBJ9.0CAHE3_B/H denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., SMBJ9.0A), the SMBJ9.0CAHE3_B/H has no polarity marking and exhibits identical breakdown and clamping characteristics in either direction - essential for protecting AC-coupled or differential signal lines such as RS-485, CAN, or Ethernet interfaces.
What is the thermal resistance of SMBJ9.0CAHE3_B/H from junction to ambient?
The SMBJ9.0CAHE3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the minimum recommended pad layout (0.2" × 0.2" copper pads per terminal), as specified in the Vishay thermal characteristics table (page 3). This value assumes natural convection cooling and is critical for calculating maximum power dissipation limits at elevated ambient temperatures. The SMBJ9.0CAHE3_B/H also features RθJL = 20 °C/W for lead-based heat transfer paths.
How does SMBJ9.0CAHE3_B/H differ from SMBJ9.0CA-E3/52?
The SMBJ9.0CAHE3_B/H is AEC-Q101 qualified and RoHS-compliant, whereas SMBJ9.0CA-E3/52 is commercial-grade without automotive qualification. Both share identical electrical parameters, SMB package, and 600 W pulse rating, but differ in reliability validation and packaging format: SMBJ9.0CAHE3_B/H ships in 7" tape-and-reel (750 pcs), while SMBJ9.0CA-E3/52 uses the same reel size but lacks HE3 qualification. The SMBJ9.0CAHE3_B/H is intended for mission-critical automotive and industrial deployments where certified reliability is mandatory.
SMBJ9.0CAHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 39A
- 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)
SMBJ9.0CAHE3_B/H FAQ
1.How can I place an order for SMBJ9.0CAHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ9.0CAHE3_B/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 SMBJ9.0CAHE3_B/H reliable?
The price and inventory of SMBJ9.0CAHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ9.0CAHE3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ9.0CAHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ9.0CAHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ9.0CAHE3_B/H?
SMBJ9.0CAHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ9.0CAHE3_B/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 SMBJ9.0CAHE3_B/H?
For technical support, including SMBJ9.0CAHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ9.0CAHE3_B/H requirements.
6.How does Aetrix verify that SMBJ9.0CAHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ9.0CAHE3_B/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 SMBJ9.0CAHE3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ9.0CAHE3_B/H?
All SMBJ9.0CAHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ9.0CAHE3_B/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 SMBJ9.0CAHE3_B/H part is unused and in its original packaging.
Return procedure for SMBJ9.0CAHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ9.0CAHE3_B/H Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
