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Vishay General Semiconductor - Diodes Division SMBJ5.0CAHE3_B/I
- Part No.:
- SMBJ5.0CAHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ5.0CAHE3_B/I.pdf
- Description:
- 600W,5.0V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,710
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Product details
Overview
SMBJ5.0CAHE3_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 signal and power lines. It features 5.0 V stand-off voltage (VWM), 6.4–7.25 V breakdown voltage (VBR), 600 W peak pulse power (10/1000 µs), and clamps to ≤9.2 V at 65.2 A peak surge current - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMBJ5.0CAHE3_B/I datasheet, SMBJ5.0CAHE3_B/I pinout, SMBJ5.0CAHE3_B/I application, or SMBJ5.0CAHE3_B/I equivalent, this device is selected for robust ESD/surge immunity in AEC-Q101-compliant automotive modules, low-capacitance signal line protection, and high-reliability industrial control inputs requiring sub-10 V clamping under 65 A surge.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR min/max (6.4 V / 7.25 V) and VC (≤9.2 V) in either direction. Its glass-passivated junction ensures stable avalanche characteristics and low incremental surge resistance, enabling consistent clamping performance during repetitive 10/1000 µs transients up to 0.01% duty cycle.
Designed for surface-mount assembly on 5.0 mm × 5.0 mm copper pads, it delivers 5.0 W steady-state power dissipation at TA = 50 °C and supports operating junction temperatures from –55 °C to +150 °C. The HE3 suffix confirms RoHS compliance and AEC-Q101 qualification per JESD22-B102 whisker testing and MSL Level 1 reflow profile (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below system supply or signal swing. |
| VBR (min/max) | 6.4 V / 7.25 V - Breakdown initiates within this range at 10 mA test current; ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | ≤9.2 V at 65.2 A - Clamped voltage seen by protected circuit during 10/1000 µs surge; limits stress on downstream ICs like microcontrollers or transceivers. |
| PPPM | 600 W - Peak transient energy handling capability; sustains 65.2 A surge without failure under standardized waveform. |
| ID @ VWM | 800 µA max - Reverse leakage at stand-off voltage; low enough to avoid loading sensitive analog or low-power digital inputs. |
| TJ max. | +150 °C - Maximum junction temperature; enables use in under-hood automotive or high-ambient industrial environments. |
| Package | SMB (DO-214AA) - Industry-standard 2-pin SMD outline with 5.59 mm max length; compatible with automated pick-and-place and reflow soldering. |
Pinout & Package
Two-terminal bidirectional device in SMB (DO-214AA) package; no polarity marking. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD22-B102, with MSL Level 1 rating (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; conducts bidirectionally when voltage exceeds ±VBR - no cathode band or polarity orientation required. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces per stress-test requirements. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) on 50 Ω source impedance without degradation. |
| Low clamping voltage (≤9.2 V) | Protects 5 V logic rails and USB/RS-485 transceivers without violating absolute maximum ratings of downstream ICs. |
| MSL Level 1 moisture sensitivity | Zero bake requirement prior to reflow; supports direct placement into high-volume SMT production lines. |
| Glass-passivated junction | Ensures stable VBR over lifetime and temperature; eliminates parameter drift due to humidity or thermal cycling. |
Applications
| Automotive Sensor Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus nodes and temperature/pressure sensors in engine compartments exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential signal pair or supply rail to shunt transient energy before it reaches ASIC or MCU input pins. Use Value: Maintains signal integrity during 100 V/50 ms load dump events while limiting clamped voltage to <9.2 V - preserving sensor accuracy and preventing latch-up. |
Use Scenario: Guarding 24 V DC digital input channels on programmable logic controllers against field-wiring induced surges and relay contact bounce. IC Role / Device Role / Timing Role: Standoff protector mounted directly at terminal block entry point to absorb fast-rising transients before they propagate into isolation barriers or FPGA I/O banks. Use Value: Enables >100,000 surge cycles at 65.2 A without parameter shift - extending maintenance intervals and reducing field failures in factory automation systems. |
| USB 2.0 Data Line Protection | Telecom Power Feed Protection |
Use Scenario: Safeguarding D+/D– lines of embedded USB host ports in set-top boxes and network gateways against ESD (IEC 61000-4-2 ±15 kV) and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed adjacent to USB connector to divert ESD current away from PHY transceiver while minimizing signal distortion. Use Value: Junction capacitance <100 pF at 0 V bias ensures <0.1 dB insertion loss at 480 MHz - preserving USB 2.0 eye diagram integrity. |
Use Scenario: Shielding -48 V DC power feeds in VoIP phones and base station remote units from lightning-induced surges on telecom lines. IC Role / Device Role / Timing Role: Primary surge suppression stage upstream of DC-DC converter input, rated for sustained operation at -48 V nominal with 5.0 V guardband. Use Value: Withstands repeated 10/1000 µs surges up to 600 W while maintaining VWM = 5.0 V - sufficient for -48 V feed with 10% tolerance and ripple margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0CAHM3_B/I | Halogen-free variant with identical electrical specs and AEC-Q101 qualification; same SMB package and thermal performance. | No functional difference; selected where halogen-free compliance is mandated by OEM environmental policy (e.g., EU auto Tier 1). | Choose SMBJ5.0CAHM3_B/I when RoHS + halogen-free certification is contractually required; otherwise SMBJ5.0CAHE3_B/I offers standard compliance at lower cost. |
| SMCJ5.0CAHE3_A/I | Same VWM/VBR/VC specs but in larger SMC (DO-214AB) package; 1500 W PPPM rating and higher IPPM (103 A), RθJA = 35 °C/W vs. 100 °C/W. | Better thermal performance and surge margin; suited for high-energy industrial mains interfaces where PCB space allows larger footprint. | Choose SMCJ5.0CAHE3_A/I only when 1500 W surge rating or lower thermal resistance is required; SMBJ5.0CAHE3_B/I remains optimal for space-constrained automotive PCBs. |
Compared with SMBJ5.0CAHM3_B/I, the SMBJ5.0CAHE3_B/I offers identical protection performance with standard RoHS compliance; versus SMCJ5.0CAHE3_A/I, it trades surge headroom and thermal margin for 40% smaller board area - making it the preferred choice for compact AEC-Q101-compliant designs where 600 W PPPM suffices.
Availability
SMBJ5.0CAHE3_B/I is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, USB interface protection, and telecom power feed circuits requiring stable component supply with full AEC-Q101 traceability and long-term lifecycle support.
Supply support for SMBJ5.0CAHE3_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, MOSFETs, and protection devices with emphasis on reliability, automotive qualification, and high-volume manufacturability.
The SMBJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications demanding AEC-Q101 validation and repeatable clamping performance.
FAQ
What is the clamping voltage of SMBJ5.0CAHE3_B/I at its rated peak pulse current?
The SMBJ5.0CAHE3_B/I clamps to a maximum of 9.2 V when subjected to its specified peak pulse current of 65.2 A under the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that protected circuitry sees no more than 9.2 V during surge events - critical for safeguarding 5 V logic interfaces and analog front-ends without exceeding absolute maximum ratings.
Is SMBJ5.0CAHE3_B/I suitable for automotive applications?
Yes, SMBJ5.0CAHE3_B/I is AEC-Q101 qualified and explicitly designated for automotive use with the "HE3" suffix. It meets stress-test requirements for temperature cycling, humidity, mechanical shock, and surge endurance - validated for deployment in engine control modules, body electronics, and ADAS sensor units where reliability under vibration and thermal extremes is mandatory.
How does the bidirectional configuration of SMBJ5.0CAHE3_B/I affect its circuit implementation?
The SMBJ5.0CAHE3_B/I has no polarity marking and functions identically in both directions, making it ideal for AC-coupled signal lines, differential buses (e.g., CAN, RS-485), or ungrounded power rails. Unlike unidirectional TVS diodes, it requires no orientation during placement - simplifying layout, eliminating risk of reverse installation, and ensuring symmetrical protection against positive and negative transients.
What is the maximum reverse leakage current for SMBJ5.0CAHE3_B/I at its stand-off voltage?
At its 5.0 V stand-off voltage (VWM), the SMBJ5.0CAHE3_B/I exhibits a maximum reverse leakage current (ID) of 800 µA at 25 °C. This low leakage ensures minimal power drain on battery-backed systems and avoids false triggering or signal attenuation in high-impedance sensor interfaces - verified per JEDEC test conditions and included in the official Vishay datasheet (Doc. #88392).
Does SMBJ5.0CAHE3_B/I require special PCB layout considerations for thermal performance?
Yes - to achieve rated 600 W pulse power and maintain junction temperature within limits, SMBJ5.0CAHE3_B/I must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in Vishay's thermal derating curves. Smaller pads reduce heat dissipation, causing premature thermal runaway during repetitive surges; adherence to this layout is essential for sustaining full PPPM rating in production systems.
SMBJ5.0CAHE3_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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 65.2A
- 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)
SMBJ5.0CAHE3_B/I FAQ
1.How can I place an order for SMBJ5.0CAHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ5.0CAHE3_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 SMBJ5.0CAHE3_B/I reliable?
The price and inventory of SMBJ5.0CAHE3_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 SMBJ5.0CAHE3_B/I is usually 5 days.
3.What payment methods are accepted for SMBJ5.0CAHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ5.0CAHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ5.0CAHE3_B/I?
SMBJ5.0CAHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ5.0CAHE3_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 SMBJ5.0CAHE3_B/I?
For technical support, including SMBJ5.0CAHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ5.0CAHE3_B/I requirements.
6.How does Aetrix verify that SMBJ5.0CAHE3_B/I is sourced from the original manufacturer or authorized distributors?
All SMBJ5.0CAHE3_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 SMBJ5.0CAHE3_B/I meets industry standards.
7.What is the process for return or replacement of SMBJ5.0CAHE3_B/I?
All SMBJ5.0CAHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ5.0CAHE3_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 SMBJ5.0CAHE3_B/I part is unused and in its original packaging.
Return procedure for SMBJ5.0CAHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ5.0CAHE3_B/I Tags
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