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Vishay General Semiconductor - Diodes Division SMBJ100CAHE3_A/I
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- Part No.:
- SMBJ100CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ100CAHE3_A/I.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,051
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Product details
Overview
SMBJ100CAHE3_A/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 100 V stand-off voltage (VWM), 111–123 V breakdown voltage (VBR) at 1 mA, 162 V maximum clamping voltage (VC) at 3.7 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform), used in industrial sensor protection and telecom interface surge suppression.
For engineers reviewing the SMBJ100CAHE3_A/I datasheet, SMBJ100CAHE3_A/I pinout, SMBJ100CAHE3_A/I application, or SMBJ100CAHE3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and compliance with UL 497B for protector classification.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the low incremental surge resistance supports consistent clamping under repetitive transient events.
The device is rated for operation from –55 °C to +150 °C junction temperature and meets MSL Level 1 per J-STD-020 with a 260 °C reflow peak. Its 600 W peak pulse power rating applies to non-repetitive 10/1000 µs surges at ≤0.01% duty cycle, with derating above 25 °C ambient per published curves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 111 V / 123 V at 1 mA - Confirmed breakdown range ensuring reliable turn-on during overvoltage |
| VC @ IPPM | 162 V at 3.7 A - Clamped voltage seen by protected circuit during 10/1000 µs surge |
| PPPM | 600 W - Peak transient energy absorption capacity under standardized surge waveform |
| ID @ VWM | ≤1.0 µA - Low leakage preserves signal integrity and minimizes standby power loss |
| TJ max | +150 °C - Enables use in high-temperature industrial and automotive under-hood environments |
| RθJA | 100 °C/W - Thermal resistance defines required PCB copper area (0.2" × 0.2") for safe power dissipation |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix). Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), with cathode band omitted for bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (reverse bias) | One terminal of symmetrical junction; accepts surge current in either polarity |
| Cathode | Transient current exit (reverse bias) | Second terminal of symmetrical junction; completes bidirectional conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines, differential buses (e.g., RS-485), and ungrounded interfaces without polarity constraints |
| AEC-Q101 qualification | Validated reliability for automotive electronics including infotainment, body control, and ADAS sensor interfaces |
| UL 497B recognition (QVGQ2) | Meets safety standard for telecom and data line protectors, supporting regulatory certification of end equipment |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, simplifying SMT manufacturing |
| Glass passivated junction | Provides stable VBR tolerance, low leakage drift over time, and robust ESD immunity (IEC 61000-4-2 Level 4) |
Applications
| Industrial Sensor Interface | Telecom Data Line Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in factory automation PLC I/O modules exposed to relay switching noise. IC Role / Device Role / Timing Role: Bidirectional TVS clamping transient spikes induced by inductive load switching on 0–10 V or 4–20 mA loops. Use Value: Limits voltage excursion to ≤162 V during 1 kV/500 A surge, preserving ADC input integrity and preventing microcontroller reset. | Use Scenario: Shielding RS-485 transceivers in base station remote radio units from lightning-induced surges on long outdoor cable runs. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) voltage clamp placed at connector entry point ahead of transceiver ESD diodes. Use Value: Absorbs 600 W transient energy without degradation, maintaining signal eye diagram integrity and avoiding false data errors. |
| Automotive Body Control Module | Consumer Power Adapter Input Stage |
Use Scenario: Safeguarding LIN bus transceivers and window motor drivers against load dump and jump-start transients in vehicle door modules. IC Role / Device Role / Timing Role: AEC-Q101-qualified bidirectional suppressor across power rail and LIN signal line to meet ISO 7637-2 Pulse 5a requirements. Use Value: Withstands 120 V/100 ms load dump pulses and clamps 10/1000 µs spikes to <162 V, ensuring uninterrupted module operation. | Use Scenario: Secondary-side transient suppression on 12 V DC output rails of wall-mounted USB-C PD adapters subject to user-induced hot-plug surges. IC Role / Device Role / Timing Role: Final-stage TVS placed after DC-DC converter output filter to prevent downstream IC damage from output capacitor discharge transients. Use Value: 100 V VWM matches nominal output, allowing normal operation while clamping >160 V excursions within 1 ns response time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CA-E3/52 | Same electrical specs, commercial-grade (non-AEC-Q101), RoHS-compliant only | Lacks automotive qualification; suitable for industrial/commercial designs without AEC requirements | Select when cost sensitivity outweighs automotive reliability validation needs |
| SAC100CA | Same VWM/VBR/VC ratings but in SOD-123FL package; lower PPPM (400 W), higher RθJA (150 °C/W) | Lower surge handling and thermal performance; limited to lower-energy transients | Choose only for space-constrained layouts where 600 W rating is not required |
Compared with SMBJ100CAHE3_A/I, the E3/52 variant offers identical clamping behavior at lower cost but no automotive qualification, while SAC100CA trades surge robustness and thermal margin for smaller footprint-neither is pin-compatible due to differing packages (SMB vs. SOD-123FL).
Availability
SMBJ100CAHE3_A/I is available at Aetrix Electronics and suitable for industrial sensor interface, telecom data line protection, and automotive body control module applications requiring stable component supply, AEC-Q101 compliance, and UL 497B recognition.
Supply support for SMBJ100CAHE3_A/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, precision, and application-specific optimization.
The SMBJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom systems where robustness against ESD, lightning, and inductive switching surges is critical.
FAQ
What does the "CA" suffix indicate in SMBJ100CAHE3_A/I?
The "CA" suffix denotes a bidirectional configuration, meaning SMBJ100CAHE3_A/I provides symmetrical clamping in both polarities-ideal for protecting AC-coupled signals, differential buses like RS-485, or ungrounded power rails. Unlike unidirectional "A" variants, it has no cathode marking and conducts equally in either direction above its breakdown voltage.
Is SMBJ100CAHE3_A/I qualified for automotive use?
Yes, SMBJ100CAHE3_A/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix and Vishay documentation. This qualification validates its reliability for automotive applications including body electronics, infotainment, and sensor interfaces under extended temperature cycling, humidity, and mechanical stress conditions.
What is the maximum clamping voltage of SMBJ100CAHE3_A/I and at what current is it specified?
The maximum clamping voltage (VC) of SMBJ100CAHE3_A/I is 162 V, measured at a peak pulse current (IPPM) of 3.7 A using the standardized 10/1000 µs waveform. This value defines the worst-case voltage imposed on the protected circuit during a transient event.
Does SMBJ100CAHE3_A/I require special PCB layout considerations?
Yes, SMBJ100CAHE3_A/I must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve its rated 600 W peak pulse power and thermal resistance (RθJA = 100 °C/W). Smaller pads reduce surge handling capability and increase junction temperature during transient events.
How does the UL 497B recognition benefit system-level certification for SMBJ100CAHE3_A/I?
UL 497B recognition (file E136766) confirms SMBJ100CAHE3_A/I meets safety requirements for protectors used on telecommunications circuits. This reduces test burden and accelerates end-equipment certification for telecom, networking, and industrial communication devices compliant with UL 60950-1 or UL 62368-1.
SMBJ100CAHE3_A/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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 162V
- Current - Peak Pulse (10/1000µs):
- 3.7A
- 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)
SMBJ100CAHE3_A/I FAQ
1.How can I place an order for SMBJ100CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ100CAHE3_A/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 SMBJ100CAHE3_A/I reliable?
The price and inventory of SMBJ100CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ100CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ100CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ100CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ100CAHE3_A/I?
SMBJ100CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ100CAHE3_A/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 SMBJ100CAHE3_A/I?
For technical support, including SMBJ100CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ100CAHE3_A/I requirements.
6.How does Aetrix verify that SMBJ100CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ100CAHE3_A/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 SMBJ100CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ100CAHE3_A/I?
All SMBJ100CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ100CAHE3_A/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 SMBJ100CAHE3_A/I part is unused and in its original packaging.
Return procedure for SMBJ100CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ100CAHE3_A/I Tags
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