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Vishay General Semiconductor - Diodes Division SMBJ100CAHM3_A/H
- Part No.:
- SMBJ100CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ100CAHM3_A/H.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,164
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Product details
Overview
SMBJ100CAHM3_A/H 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 power and signal lines. It features 100 V standoff voltage (VWM), 111–123 V breakdown range (VBR), 162 V maximum clamping voltage at 3.7 A peak pulse current (IPPM), and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies and telecom line cards.
For engineers reviewing the SMBJ100CAHM3_A/H datasheet, SMBJ100CAHM3_A/H pinout, SMBJ100CAHM3_A/H application, or SMBJ100CAHM3_A/H equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, AEC-Q101-qualified halogen-free construction, thermal resistance data, and real-world protection use cases without generic marketing language.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional junction structure, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated silicon junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, critical for consistent clamping under repetitive ESD or lightning-induced surges.
Thermal design relies on RθJA = 100 °C/W and RθJL = 20 °C/W, requiring minimum 5.0 mm × 5.0 mm copper pads per terminal for rated 600 W pulse handling. The device meets MSL Level 1 (260 °C reflow peak) and supports automated SMT placement with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 12 V–48 V DC bus protection. |
| VBR min/max | 111 V / 123 V at 1 mA - Confirmed breakdown threshold range ensures reliable turn-on during overvoltage events without premature conduction. |
| VC @ IPPM | 162 V at 3.7 A - Clamping voltage under full 600 W 10/1000 µs surge; limits downstream component stress to safe levels. |
| PPPM | 600 W - Peak pulse power rating with standardized 10/1000 µs waveform; validates robustness against IEC 61000-4-5 Level 4 surges. |
| ID @ VWM | 1.0 µA - Reverse leakage at 100 V standoff; negligible power loss and minimal impact on high-impedance sensor bias networks. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in enclosed industrial enclosures with ambient up to +85 °C. |
| Package | SMB (DO-214AA) - Standardized 2-pin surface-mount outline with 5.59 mm length, 4.06 mm width, and 2.20 mm height; compatible with IPC-7351B footprint. |
Pinout & Package
Package: SMB (DO-214AA), bidirectional configuration - no polarity marking; symmetrical terminals accept transient energy from either direction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (both pins identical) | Bidirectional transient path | Either terminal serves as input/output for surge current; no cathode band marking required; enables flexible PCB layout across differential or single-ended lines. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Validated clamping capability for IEC 61000-4-5 combination wave surges up to 4 kV (open-circuit)/2 kA (short-circuit). |
| Halogen-free, RoHS-compliant (HM3 suffix) | Meets IPC-1752A material declaration requirements and EU Directive 2015/863 for restricted substances in industrial electronics. |
| AEC-Q101 qualified | Qualified for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - suitable for under-hood power modules. |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes overvoltage overshoot during fast transients, reducing risk of gate oxide rupture in protected MOSFETs or logic ICs. |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking; eliminates production delays and moisture-related delamination risks. |
Applications
| Industrial Power Supply Protection | Telecom Line Card Surge Suppression |
|---|---|
Use Scenario: Protecting 48 V DC input rails in programmable logic controller (PLC) power modules from inductive switching spikes and accidental AC mains coupling. IC Role / Device Role / Timing Role: Bidirectional TVS placed across input terminals to clamp ±200 V transients within 1 ns response time. Use Value: Prevents damage to upstream rectifiers and downstream DC/DC controllers by limiting peak voltage to 162 V during 600 W surges. |
Use Scenario: Shielding Ethernet PHY interface power pins (3.3 V/5 V) and RS-485 data lines from lightning-induced surges in outdoor base station line cards. IC Role / Device Role / Timing Role: Standoff-rated TVS mounted directly at connector entry point to shunt common-mode transients before reaching transceiver ICs. Use Value: Maintains signal integrity by clamping transients below 162 V while adding only 1.0 µA leakage at 100 V - no loading on bias networks. |
| Automotive Body Control Module (BCM) | Sensor Signal Line Protection |
Use Scenario: Safeguarding 12 V battery-fed microcontroller I/O lines in BCMs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: AEC-Q101-qualified bidirectional suppressor placed between MCU GPIO and external switches/solenoids. Use Value: Survives 120 V/200 ms load dump pulses and repeated 10/1000 µs surges without degradation - validated per AEC-Q101 stress tests. |
Use Scenario: Protecting analog outputs of pressure/temperature sensors in HVAC control units from ESD events and cable discharge. IC Role / Device Role / Timing Role: Low-leakage TVS installed at sensor connector to absorb ±8 kV contact ESD (IEC 61000-4-2) without affecting 4–20 mA loop accuracy. Use Value: Adds <1.0 µA reverse leakage at 100 V, preserving sensor output resolution and eliminating calibration drift caused by parasitic current 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 |
|---|---|---|---|
| SMBJ100CAHE3_A/H | RoHS-compliant but not halogen-free; same VWM, VBR, VC, and PPPM ratings; uses standard SnPb-equivalent matte tin plating. | Lacks halogen-free certification; acceptable for commercial-grade industrial equipment where material compliance is less stringent. | Select when halogen-free requirement is waived and cost optimization is prioritized over automotive or green procurement mandates. |
| SMCJ100CAHM3_A/H | Same electrical specs but in larger SMC (DO-214AB) package; higher thermal mass yields RθJA = 50 °C/W vs. 100 °C/W; 1500 W PPPM rating. | Requires larger PCB footprint; suited for higher-energy surge environments where 600 W is insufficient. | Choose when system-level surge testing exceeds IEC 61000-4-5 Level 4 and board space allows SMC footprint. |
Compared with SMBJ100CAHE3_A/H, the SMBJ100CAHM3_A/H adds halogen-free compliance without sacrificing clamping performance; versus SMCJ100CAHM3_A/H, it trades 900 W extra pulse power for 40% smaller PCB area and lower assembly cost - ideal for space-constrained 48 V telecom modules.
Availability
SMBJ100CAHM3_A/H is available at Aetrix Electronics and suitable for industrial power supply protection, telecom line card surge suppression, automotive body control modules, and sensor signal line protection requiring stable component supply and long-term lifecycle support.
Supply support for SMBJ100CAHM3_A/H 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, efficiency, and application-specific optimization.
The SMBJ series is engineered for high-reliability transient suppression in harsh environments - targeting industrial automation, automotive electronics, and communications infrastructure where consistent clamping and long-term stability are mandatory.
FAQ
What is the clamping voltage of SMBJ100CAHM3_A/H at its rated peak pulse current?
The SMBJ100CAHM3_A/H has a maximum clamping voltage (VC) of 162 V at its specified peak pulse current (IPPM) of 3.7 A using the 10/1000 µs waveform. This value is measured under standardized test conditions with 0.2" × 0.2" copper pads and confirms the device's ability to limit transient overvoltage to a predictable, non-destructive level for protected circuitry. The SMBJ100CAHM3_A/H maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is SMBJ100CAHM3_A/H suitable for automotive applications?
Yes, SMBJ100CAHM3_A/H is AEC-Q101 qualified and specifically designed for automotive use, including body control modules and power distribution units. Its halogen-free, RoHS-compliant HM3 construction, MSL Level 1 rating, and validated performance under temperature cycling, high-temperature reverse bias, and surge endurance testing meet automotive reliability requirements. The SMBJ100CAHM3_A/H supports operation up to +150 °C junction temperature, making it appropriate for under-hood environments.
How does the bidirectional configuration of SMBJ100CAHM3_A/H affect its circuit implementation?
The SMBJ100CAHM3_A/H has no polarity marking and functions identically in both directions, allowing direct placement across any two points needing transient suppression - such as power rail-to-rail, signal line-to-ground, or differential pairs. This eliminates orientation errors during assembly and simplifies layout for AC-coupled or floating systems. Unlike unidirectional TVS diodes, the SMBJ100CAHM3_A/H does not require cathode alignment and provides symmetrical clamping for positive and negative transients without additional components.
What is the thermal resistance specification for SMBJ100CAHM3_A/H, and how does it impact PCB layout?
The SMBJ100CAHM3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W, measured on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To achieve rated 600 W pulse power handling, PCB layout must provide at least this pad area for each pin - undersized traces or insufficient copper will cause thermal derating and potential failure. The SMBJ100CAHM3_A/H requires no heatsink but depends entirely on proper copper thermal relief design.
Does SMBJ100CAHM3_A/H meet industry surge immunity standards like IEC 61000-4-5?
Yes, the SMBJ100CAHM3_A/H is rated for 600 W peak pulse power with the 10/1000 µs waveform defined in IEC 61000-4-5, making it suitable for Level 3 and Level 4 surge protection in industrial and telecom equipment. Its 162 V clamping voltage at 3.7 A ensures protected circuits remain below safe voltage thresholds during standardized surge events. The SMBJ100CAHM3_A/H has been validated in reference designs meeting EN 61000-6-2 and FCC Part 15 Class A emissions requirements when applied per Vishay's recommended layout guidelines.
SMBJ100CAHM3_A/H 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:
- 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)
SMBJ100CAHM3_A/H FAQ
1.How can I place an order for SMBJ100CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ100CAHM3_A/H 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 SMBJ100CAHM3_A/H reliable?
The price and inventory of SMBJ100CAHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ100CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMBJ100CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ100CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ100CAHM3_A/H?
SMBJ100CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ100CAHM3_A/H 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 SMBJ100CAHM3_A/H?
For technical support, including SMBJ100CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ100CAHM3_A/H requirements.
6.How does Aetrix verify that SMBJ100CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMBJ100CAHM3_A/H 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 SMBJ100CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMBJ100CAHM3_A/H?
All SMBJ100CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ100CAHM3_A/H, 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 SMBJ100CAHM3_A/H part is unused and in its original packaging.
Return procedure for SMBJ100CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ100CAHM3_A/H Tags
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