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Vishay General Semiconductor - Diodes Division SMBJ100CAHE3/5B
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- Part No.:
- SMBJ100CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ100CAHE3/5B.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,187
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Product details
Overview
SMBJ100CAHE3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 100 V standoff voltage (VWM), 111–123 V breakdown voltage (VBR), and 162 V clamping voltage (VC) at 3.7 A peak pulse current (IPPM). It delivers 600 W peak pulse power (10/1000 µs waveform) and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the SMBJ100CAHE3/5B datasheet, SMBJ100CAHE3/5B pinout, SMBJ100CAHE3/5B application, or SMBJ100CAHE3/5B equivalent, this device is selected for robust overvoltage protection on DC power rails and bidirectional signal lines in harsh environments where fast response (<1 ns), low clamping ratio, and automotive-grade reliability are required.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR, VC, and IPPM specifications in either direction. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and repeatable clamping performance under repetitive transients.
The device uses a planar silicon avalanche structure optimized for low incremental surge resistance (rd) and fast response time (<1 ns), enabling effective suppression of ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and lightning-induced surges (IEC 61000-4-5). Thermal resistance is RθJA = 100 °C/W (on 0.2" × 0.2" copper pads).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC/AC working margin. |
| VBR (min/max) | 111 V / 123 V at 1.0 mA test current - Confirmed breakdown threshold range ensuring reliable triggering above normal operating voltage. |
| VC @ IPPM | 162 V at 3.7 A - Clamped voltage during 10/1000 µs surge; limits downstream IC stress to ≤162 V. |
| PPPM | 600 W - Peak pulse power handling capability per single transient event; validated per IEC 61000-4-5. |
| IPPM | 3.7 A - Peak pulse current supported at VC; determines minimum trace width and PCB layout robustness. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| Leakage ID | ≤1.0 µA at 100 V - Ultra-low reverse leakage preserves battery life and avoids false triggers in high-impedance circuits. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads, MSL Level 1, 260 °C reflow compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (negative polarity) | Conducts during negative-going surges; connects to protected line or ground return path. |
| Cathode | Transient current entry point (positive polarity) | Conducts during positive-going surges; connects to protected line or ground return path. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics per stress test requirements. |
| 600 W peak pulse power (10/1000 µs) | Withstands high-energy transients common in 12 V/24 V vehicle systems without degradation. |
| Clamping ratio VC/VBR ≈ 1.46 | Low ratio ensures minimal overvoltage overshoot during clamping-critical for protecting 100 V-rated MOSFETs and gate drivers. |
| Response time < 1 ns | Fast enough to suppress ESD events before damage occurs to sensitive analog front-ends or CAN transceivers. |
| RoHS-compliant, halogen-free option available | Meets global environmental compliance mandates (IEC 61249-2-21) without compromising surge performance. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V/24 V supply inputs in engine control modules (ECUs) against load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional shunt clamp absorbing >600 W surge energy while limiting rail voltage to ≤162 V. Use Value: Prevents latch-up or permanent damage to microcontrollers and power management ICs during ISO 7637-2 Pulse 5a/b events. |
Use Scenario: Safeguarding differential analog outputs (e.g., 4–20 mA current loops) in industrial pressure sensors exposed to field wiring surges. IC Role / Device Role / Timing Role: Symmetrical clamping element placed across signal pair to divert common-mode transients before reaching ADC input stage. Use Value: Maintains signal integrity and avoids measurement errors caused by transient-induced offset shifts in precision instrumentation amplifiers. |
| Telecom DC Feeder Protection | Consumer USB-C Port ESD Protection |
|
Use Scenario: Shielding -48 V DC power feeds in telecom base station remote radio units (RRUs) from lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC input bus, coordinated with upstream fuses and secondary TVS stages. Use Value: Enables compliance with IEC 61000-4-5 Level 4 (4 kV line-to-ground) without derating or parallel staging. |
Use Scenario: Bidirectional ESD protection on USB-C CC and SBU pins in portable devices subjected to human-body-model (HBM) discharges. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF typical) transient suppressor placed directly at connector to minimize stub length. Use Value: Passes IEC 61000-4-2 ±15 kV contact discharge while adding <0.3 pF parasitic capacitance to high-speed data paths. |
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-M3/5B | Same electrical specs; halogen-free, RoHS-compliant, but not AEC-Q101 qualified. | Preferred for commercial/industrial designs where automotive qualification is unnecessary. | Select when cost sensitivity outweighs automotive qualification requirement and halogen-free status is mandated. |
| SMCJ100CAHE3/5B | Same VWM/VBR/VC, but SMC (DO-214AB) package: larger footprint, higher PPPM = 1500 W, RθJA = 50 °C/W. | Better suited for high-power industrial motor drives where thermal margin and surge headroom exceed SMBJ capability. | Choose when system-level surge testing exceeds 600 W or board space allows larger SMC package for improved thermal derating. |
Compared with SMBJ100CAHE3/5B, the M3 variant trades automotive qualification for halogen-free compliance, while the SMCJ100CAHE3/5B offers 2.5× higher surge power in a larger package-enabling longer lifetime under repetitive transients but requiring PCB redesign.
Availability
SMBJ100CAHE3/5B is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom DC feeders, and consumer USB-C port protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMBJ100CAHE3/5B 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, and protection devices with emphasis on reliability, ruggedness, and application-specific validation.
The SMBJ series was engineered for high-reliability transient suppression in automotive and industrial environments, combining AEC-Q101 qualification, low clamping ratio, and robust surge endurance in compact SMB packaging.
FAQ
What is the clamping voltage of SMBJ100CAHE3/5B at its rated peak pulse current?
The SMBJ100CAHE3/5B has a maximum clamping voltage (VC) of 162 V at its rated peak pulse current (IPPM) of 3.7 A under a 10/1000 µs waveform. This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ100CAHE3/5B maintains this clamping performance across its full operating temperature range.
Is SMBJ100CAHE3/5B suitable for automotive applications?
Yes, SMBJ100CAHE3/5B is AEC-Q101 qualified and specifically designed for automotive use, including engine control units, body electronics, and infotainment power supplies. Its construction meets automotive thermal, mechanical, and reliability requirements-including MSL Level 1, 260 °C reflow compatibility, and verified performance across -55 °C to +150 °C junction temperature. The "HE3" suffix confirms AEC-Q101 qualification.
How does SMBJ100CAHE3/5B differ from unidirectional SMBJ100AHE3/5B?
The SMBJ100CAHE3/5B is bidirectional, meaning it clamps transients of either polarity symmetrically, with identical VBR, VC, and IPPM values in both directions. In contrast, SMBJ100AHE3/5B is unidirectional and features a cathode band marking; it conducts only during positive surges relative to its marked cathode. The "CA" suffix explicitly denotes bidirectional functionality, critical for AC-coupled or floating signal line protection.
What is the maximum reverse leakage current for SMBJ100CAHE3/5B at its standoff voltage?
The SMBJ100CAHE3/5B exhibits a maximum reverse leakage current (ID) of 1.0 µA at its rated standoff voltage (VWM) of 100 V and ambient temperature of 25 °C. This ultra-low leakage ensures minimal power loss in always-on systems and prevents interference with high-impedance sensing nodes. Leakage remains within specification up to +125 °C junction temperature.
Can SMBJ100CAHE3/5B be used in place of SMBJ100AHE3/5B without circuit modification?
No-SMBJ100CAHE3/5B is bidirectional and lacks polarity marking, while SMBJ100AHE3/5B is unidirectional with a defined cathode. Substituting SMBJ100CAHE3/5B for SMBJ100AHE3/5B may result in unintended conduction in DC-biased circuits. Use SMBJ100CAHE3/5B only where symmetrical clamping is required; verify bias conditions and layout compatibility before replacement. The SMBJ100CAHE3/5B must be placed without orientation dependency.
SMBJ100CAHE3/5B 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)
SMBJ100CAHE3/5B FAQ
1.How can I place an order for SMBJ100CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ100CAHE3/5B 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 SMBJ100CAHE3/5B reliable?
The price and inventory of SMBJ100CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ100CAHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ100CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ100CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ100CAHE3/5B?
SMBJ100CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ100CAHE3/5B 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 SMBJ100CAHE3/5B?
For technical support, including SMBJ100CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ100CAHE3/5B requirements.
6.How does Aetrix verify that SMBJ100CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ100CAHE3/5B 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 SMBJ100CAHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ100CAHE3/5B?
All SMBJ100CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ100CAHE3/5B, 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 SMBJ100CAHE3/5B part is unused and in its original packaging.
Return procedure for SMBJ100CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ100CAHE3/5B Tags
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