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Vishay General Semiconductor - Diodes Division SMBJ100CAHE3/52
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- Part No.:
- SMBJ100CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ100CAHE3/52.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,761
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Product details
Overview
SMBJ100CAHE3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 100 V standoff voltage (VWM), 111–123 V breakdown voltage (VBR) at 1 mA, 162 V maximum clamping voltage (VC) at 3.7 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed on power rails and signal lines in industrial motor drives and telecom interface circuits.
For engineers reviewing the SMBJ100CAHE3/52 datasheet, SMBJ100CAHE3/52 pinout, SMBJ100CAHE3/52 application, or SMBJ100CAHE3/52 equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and compliance with UL 497B for surge protector classification.
Technical Context
This device operates as a voltage-clamped shunt protector: under transient overvoltage events exceeding VWM (100 V), it avalanches symmetrically in both directions to clamp the line at ≤162 V, diverting surge energy away from downstream ICs. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM).
Designed for automated SMT assembly, SMBJ100CAHE3/52 meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and carries AEC-Q101 qualification for automotive-grade reliability - confirmed by Vishay's HE3 suffix designation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 100 V - maximum continuous reverse voltage before conduction begins; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 111–123 V at 1 mA - guaranteed avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 162 V at IPPM = 3.7 A (10/1000 µs) - peak voltage seen by protected circuit during worst-case surge. |
| PPPM (Peak Pulse Power) | 600 W - surge energy handling capacity under standardized 10/1000 µs waveform; enables protection against IEC 61000-4-5 Level 3/4 surges. |
| ID (Reverse Leakage) | ≤1.0 µA at VWM - minimal standby power loss and signal integrity impact in high-impedance circuits. |
| TJ max. | 150 °C - maximum junction temperature; supports operation in under-hood automotive and industrial ambient environments. |
| RθJA | 100 °C/W - thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads; informs board-level thermal design. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking - both terminals are electrically symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient current path | Either terminal conducts during positive or negative overvoltage; no cathode band marking required for bidirectional operation. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines without polarity concerns. |
| AEC-Q101 qualified | Validated for automotive applications including infotainment power supplies and body control modules. |
| UL 497B recognized (QVGQ2) | Meets safety requirements for telecom and industrial surge protectors; simplifies end-equipment certification. |
| MSL Level 1 rating | Supports lead-free reflow without moisture sensitivity concerns; eliminates bake-out requirement pre-assembly. |
| Glass-passivated junction | Ensures long-term stability of VBR and low parametric drift across temperature and lifetime stress. |
Applications
| Industrial Motor Drives | Telecom Interface Protection |
|---|---|
Use Scenario: Protecting gate drivers and feedback sensing lines from switching-induced transients in 3-phase inverters. IC Role / Device Role / Timing Role: Shunt TVS diode placed across DC bus or gate resistor to clamp inductive kickback spikes. Use Value: Limits voltage excursion to ≤162 V, preventing MOSFET avalanche failure and maintaining PWM timing integrity. |
Use Scenario: Safeguarding RS-485 transceivers and Ethernet PHYs against lightning-induced surges on field wiring. IC Role / Device Role / Timing Role: Bidirectional clamping element on differential data pairs (A/B) and power return paths. Use Value: Maintains signal eye diagram integrity by suppressing >1 kV transients while adding <0.5 pF capacitance. |
| Automotive Body Control Modules | Consumer Power Adapters |
Use Scenario: Suppressing load-dump and jump-start transients on 12 V supply rails feeding microcontrollers and sensors. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main input rail, upstream of LDOs and PMICs. Use Value: Withstands 600 W pulses per ISO 7637-2 Pulse 5a, enabling compliance without additional crowbar circuitry. |
Use Scenario: Secondary-side transient suppression on USB-C PD adapter output rails and auxiliary 5 V/3.3 V outputs. IC Role / Device Role / Timing Role: Final-stage protection device after DC-DC converters, guarding connected devices. Use Value: Low leakage (<1 µA) prevents standby current drain; RoHS-compliant HE3 suffix meets global regulatory requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CA-M3/52 | Halogen-free, RoHS-compliant, commercial grade (no AEC-Q101 qualification) | Lacks automotive qualification; suitable for industrial/commercial designs where automotive reliability not mandated | Select when cost-sensitive commercial applications require halogen-free compliance but not automotive stress testing. |
| SMBJ100CA-E3/52 | RoHS-compliant, commercial grade, non-halogen-free, no AEC-Q101 qualification | Same electrical specs but lower reliability assurance; not rated for automotive temperature cycling or humidity testing | Choose for legacy consumer or computing applications where full AEC-Q101 traceability is unnecessary. |
Compared with SMBJ100CAHE3/52, the M3/52 and E3/52 variants retain identical clamping performance and package but omit AEC-Q101 validation - making them viable for cost-driven commercial use, while the HE3 suffix ensures validated automotive-grade robustness for mission-critical systems.
Availability
SMBJ100CAHE3/52 is available at Aetrix Electronics and suitable for industrial motor drives, telecom interface protection, automotive body control modules, and consumer power adapters requiring stable component supply and automotive-grade reliability assurance.
Supply support for SMBJ100CAHE3/52 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 targets high-energy transient suppression in harsh environments - engineered for fast response, stable clamping, and compliance with automotive, industrial, and telecom surge standards.
FAQ
What does the "CA" suffix indicate in SMBJ100CAHE3/52?
The "CA" suffix denotes a bidirectional configuration: SMBJ100CAHE3/52 provides symmetrical clamping for both positive and negative transients, unlike unidirectional "A" versions. This makes SMBJ100CAHE3/52 ideal for AC-coupled lines, differential buses, and applications where polarity cannot be guaranteed - with no cathode marking required on the SMB package.
Is SMBJ100CAHE3/52 qualified for automotive applications?
Yes, SMBJ100CAHE3/52 is AEC-Q101 qualified, as confirmed by the "HE3" suffix per Vishay's ordering nomenclature. This qualification covers temperature cycling, humidity testing, and mechanical shock - validating SMBJ100CAHE3/52 for use in automotive body control modules, infotainment power supplies, and ADAS sensor interfaces.
What is the maximum clamping voltage of SMBJ100CAHE3/52 under surge conditions?
The maximum clamping voltage (VC) of SMBJ100CAHE3/52 is 162 V at a peak pulse current (IPPM) of 3.7 A with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during standardized surge events.
Does SMBJ100CAHE3/52 meet UL safety standards?
Yes, SMBJ100CAHE3/52 is Underwriters Laboratories (UL) recognized under standard UL 497B (file E136766) for surge protectors. This applies to both unidirectional and bidirectional variants, confirming SMBJ100CAHE3/52's suitability in end-equipment requiring UL certification for transient protection circuits.
What is the thermal resistance of SMBJ100CAHE3/52, and how does it affect layout?
SMBJ100CAHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe operation below 150 °C junction temperature, PCB layout must provide adequate copper area and avoid excessive ambient temperature rise - especially during repetitive surge events.
SMBJ100CAHE3/52 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):
- 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)
SMBJ100CAHE3/52 FAQ
1.How can I place an order for SMBJ100CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ100CAHE3/52 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 SMBJ100CAHE3/52 reliable?
The price and inventory of SMBJ100CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ100CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ100CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ100CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ100CAHE3/52?
SMBJ100CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ100CAHE3/52 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 SMBJ100CAHE3/52?
For technical support, including SMBJ100CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ100CAHE3/52 requirements.
6.How does Aetrix verify that SMBJ100CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ100CAHE3/52 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 SMBJ100CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ100CAHE3/52?
All SMBJ100CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ100CAHE3/52, 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 SMBJ100CAHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ100CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ100CAHE3/52 Tags
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