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Vishay General Semiconductor - Diodes Division SMBJ100CA-E3/52
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- Part No.:
- SMBJ100CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ100CA-E3/52.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,472
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Product details
Overview
SMBJ100CA-E3/52 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 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 (IPPM), and 600 W peak pulse power (10/1000 μs waveform), commonly deployed on power rails and signal lines in industrial motor drives and telecom interface circuits.
For engineers reviewing the SMBJ100CA-E3/52 datasheet, SMBJ100CA-E3/52 pinout, SMBJ100CA-E3/52 application, or SMBJ100CA-E3/52 equivalent, key selection criteria include bidirectional clamping symmetry, low clamping ratio (VC/VBR ≈ 1.45), MSL Level 1 moisture sensitivity, RoHS-compliant matte tin terminations, and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 μA leakage at 100 V), but triggers into low-impedance conduction when transient voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance and fast response (<1 ns), while the bidirectional structure eliminates polarity dependency in AC-coupled or floating signal paths.
The device sustains repetitive 10/1000 μs surges up to 600 W at 0.01% duty cycle, with thermal resistance RθJA = 100 °C/W and RθJL = 20 °C/W enabling reliable operation without heatsinking on minimal 5.0 mm × 5.0 mm copper pads per terminal. Junction temperature remains within -55 °C to +150 °C limits during surge events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 100 V - Maximum continuous reverse working voltage before significant leakage; defines upper limit of normal operating range. |
| VBR (Breakdown Voltage) | 111–123 V at 1 mA - Guaranteed conduction onset range; ensures predictable triggering across manufacturing lot. |
| VC (Clamping Voltage) | 162 V at IPPM = 3.7 A - Peak voltage seen by protected circuit during 10/1000 μs transient; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Surge energy handling capability under standardized 10/1000 μs waveform; validates protection level per IEC 61000-4-5. |
| ID (Reverse Leakage) | 1.0 μA max at 100 V - Minimal standby current draw; critical for low-power sensor and battery-backed systems. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with JEDEC MS-012 standards. |
| Operating Temperature | -55 °C to +150 °C - Full industrial temperature range support; enables use in under-hood automotive and outdoor telecom enclosures. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Terminals are matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; meets JESD 201 Class 2 whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during positive transients | One side of symmetrical PN junction; conducts when voltage at this terminal exceeds cathode by >VBR. |
| Cathode | Current entry point during negative transients | Other side of symmetrical PN junction; conducts when voltage at this terminal exceeds anode by >VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), and floating power domains without polarity concerns. |
| 600 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial equipment and telecom infrastructure. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage overshoot during clamping, reducing stress on protected ICs such as microcontrollers and transceivers. |
| MSL Level 1 rating (260 °C peak reflow) | Supports standard lead-free reflow profiles without pre-baking; simplifies manufacturing and reduces BOM complexity. |
| RoHS-compliant, halogen-free option available | E3 suffix denotes commercial-grade RoHS compliance; M3 suffix adds halogen-free certification for environmentally regulated markets. |
Applications
| Industrial Motor Drives | Telecom Interface Protection |
|---|---|
|
Use Scenario: Protection of gate drivers and feedback sensing lines against switching-induced transients in 3-phase inverters. IC Role / Device Role: Shunt clamp placed across DC bus or isolated signal lines to divert inductive kickback energy. Use Value: Limits transient voltage to ≤162 V, preventing latch-up or gate oxide damage in 100 V-rated MOSFETs and isolated amplifiers. |
Use Scenario: Surge suppression on RS-485/RS-422 differential data lines exposed to lightning-induced surges in base station backhaul links. IC Role / Device Role: Bidirectional TVS connected line-to-line and line-to-ground to clamp common-mode and differential-mode transients. Use Value: Maintains signal integrity below 162 V clamping level while surviving repeated 600 W surges per IEC 61000-4-5 Ed. 3. |
| Automotive Body Control Modules | Consumer Appliance Power Supplies |
|
Use Scenario: Input rail protection in BCM sub-modules subjected to load dump and ISO 7637-2 pulse 5a transients. IC Role / Device Role: Primary clamping device on 12 V supply input, coordinated with upstream fuse and downstream LDO. Use Value: Withstands 100 V standoff and clamps to 162 V, allowing downstream regulators rated for ≥18 V input to remain functional. |
Use Scenario: Overvoltage safeguard on secondary-side DC outputs of SMPS in washing machines and HVAC controllers. IC Role / Device Role: Secondary-side TVS across 24 V or 48 V output rails to suppress transformer leakage spikes and rectifier reverse recovery transients. Use Value: Low 1.0 μA leakage at 100 V prevents standby power loss; SMB package fits tight layout constraints near output connectors. |
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 variant with identical electrical specs and SMB package. | Required for electronics sold in EU markets with strict halogen restrictions (e.g., WEEE, RoHS Annex II). | Select when halogen-free compliance is mandated; otherwise E3 and M3 are functionally interchangeable. |
| SMCJ100CA-E3/52 | Same VWM/VBR/VC ratings but in larger SMC (DO-214AB) package with 1500 W PPPM rating. | Used where higher surge margin is needed (e.g., outdoor power supplies), accepting larger board area and higher cost. | Choose SMCJ100CA-E3/52 only if 1500 W surge rating is required; SMBJ100CA-E3/52 suffices for standard 600 W IEC 61000-4-5 Level 3/4. |
Compared with SMBJ100CA-M3/52, the SMBJ100CA-E3/52 offers identical protection performance with standard RoHS compliance but excludes halogen-free certification; compared with SMCJ100CA-E3/52, it delivers proven 600 W surge capability in a 30% smaller footprint, optimizing space-constrained designs without over-specifying power rating.
Availability
SMBJ100CA-E3/52 is available at Aetrix Electronics and suitable for industrial motor drives, telecom interface protection, automotive body control modules, and consumer appliance power supplies requiring stable component supply and full traceability.
Supply support for SMBJ100CA-E3/52 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, TVS devices, and optoelectronics with emphasis on reliability, precision, and application-specific optimization.
The SMBJ series is engineered for high-reliability transient suppression in harsh environments-designed to meet industrial, automotive (AEC-Q101 qualified variants), and telecom surge immunity standards with consistent clamping performance and robust packaging.
FAQ
What is the maximum clamping voltage of SMBJ100CA-E3/52 at its rated peak pulse current?
The SMBJ100CA-E3/52 has a maximum clamping voltage (VC) of 162 V at its specified peak pulse current (IPPM) of 3.7 A under the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees the highest voltage the protected circuit will experience during a standardized surge event. The SMBJ100CA-E3/52 maintains this clamping performance across its full operating temperature range of -55 °C to +150 °C.
Is SMBJ100CA-E3/52 suitable for bidirectional signal line protection?
Yes, SMBJ100CA-E3/52 is explicitly designed as a bidirectional TVS diode, with symmetric breakdown and clamping characteristics in both polarities. Its CA suffix confirms bidirectional functionality, making it ideal for protecting differential interfaces like RS-485, CAN, or Ethernet PHY lines where voltage transients can occur in either direction. Unlike unidirectional variants, SMBJ100CA-E3/52 requires no polarity alignment during placement.
What is the standoff voltage rating for SMBJ100CA-E3/52, and how does it relate to system operating voltage?
The standoff voltage (VWM) of SMBJ100CA-E3/52 is 100 V, meaning it remains non-conductive with <1.0 μA leakage up to this DC or RMS voltage. For reliable operation, system nominal voltage must be ≤80% of VWM (i.e., ≤80 V) to ensure margin against tolerance drift and temperature effects. This makes SMBJ100CA-E3/52 appropriate for 72 VDC industrial buses or 100 VAC-derived rails where peak transients exceed steady-state levels.
Does SMBJ100CA-E3/52 meet automotive qualification standards?
The base SMBJ100CA-E3/52 is commercial-grade and not AEC-Q101 qualified; however, Vishay offers the automotive variant SMBJ100CAHE3_B/H with identical electrical specs plus AEC-Q101 qualification. That part uses the HE3 suffix and is intended for under-hood and chassis applications. Engineers selecting SMBJ100CA-E3/52 should verify whether automotive qualification is mandatory for their end-use environment before finalizing design-in.
What is the thermal resistance from junction to ambient for SMBJ100CA-E3/52, and how does it affect PCB layout?
The typical junction-to-ambient thermal resistance (RθJA) of SMBJ100CA-E3/52 is 100 °C/W when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes no additional heatsinking; exceeding 5.0 W continuous power dissipation risks junction overheating. To maintain reliability, PCB layout must allocate minimum copper area per pad and avoid narrow traces-SMBJ100CA-E3/52 relies on copper mass, not component-level heatsinks, for thermal management.
SMBJ100CA-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ100CA-E3/52 FAQ
1.How can I place an order for SMBJ100CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ100CA-E3/52 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 SMBJ100CA-E3/52 reliable?
The price and inventory of SMBJ100CA-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ100CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ100CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ100CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ100CA-E3/52?
SMBJ100CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ100CA-E3/52 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 SMBJ100CA-E3/52?
For technical support, including SMBJ100CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ100CA-E3/52 requirements.
6.How does Aetrix verify that SMBJ100CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ100CA-E3/52 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 SMBJ100CA-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ100CA-E3/52?
All SMBJ100CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ100CA-E3/52, 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 SMBJ100CA-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ100CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ100CA-E3/52 Tags
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