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Vishay General Semiconductor - Diodes Division SMBJ100CAHM3_B/H
- Part No.:
- SMBJ100CAHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ100CAHM3_B/H.pdf
- Description:
- 600W,100V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,585
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Product details
Overview
SMBJ100CAHM3_B/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 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 (IPPM), and 600 W peak pulse power (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_B/H datasheet, SMBJ100CAHM3_B/H pinout, SMBJ100CAHM3_B/H application, or SMBJ100CAHM3_B/H equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, thermal derating curves, AEC-Q101 qualification status, and real-world protection use cases - all confirmed from Vishay's official SMBJ5.0A–SMBJ188A specification document (Rev. 09-Jan-2024, Doc. #88392).
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling suppression of positive and negative polarity transients without polarity-sensitive placement. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the low incremental surge resistance supports fast energy dissipation during ESD or lightning-induced surges.
The device is rated for 150 °C maximum junction temperature and exhibits a typical thermal resistance of 100 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads. Its MSL Level 1 rating (JEDEC J-STD-020) and matte tin-plated leads ensure compatibility with lead-free reflow processes up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 100 V - Maximum continuous reverse voltage before significant conduction begins; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 111–123 V at IT = 1 mA - Confirmed bidirectional breakdown range; ensures reliable triggering under transient overvoltage conditions. |
| VC (Clamping Voltage) | 162 V at IPPM = 3.7 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; determines safe voltage headroom for downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy absorption capability per single 10/1000 µs pulse; enables robust protection against IEC 61000-4-5 surges. |
| ID (Reverse Leakage) | ≤1.0 µA at VWM - Minimal standby power loss and signal integrity impact in high-impedance circuits like sensor bias networks. |
| TJ max. | 150 °C - Maximum allowable junction temperature; sets thermal design limits for PCB copper area and ambient operating conditions. |
| Package | SMB (DO-214AA) - Industry-standard surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; optimized for automated placement and reflow. |
Pinout & Package
Package: SMB (DO-214AA), bidirectional configuration - no polarity marking; symmetrical terminals with identical electrical behavior in either direction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional transient path | Both terminals serve as interchangeable surge current entry/exit points; no cathode band marking required. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables compliance with IEC 61000-4-5 Level 3 (1 kV/2 kV surge) without external series impedance in many 24–48 V systems. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, humidity testing, and mechanical shock - suitable for under-hood ECUs and ADAS power rails. |
| Halogen-free, RoHS-compliant (HM3) | Meets EU Directive 2011/65/EU and JEDEC JESD201 Class 2 whisker resistance - eliminates toxic off-gassing during reflow and long-term operation. |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free assembly without moisture sensitivity concerns or baking requirements prior to SMT placement. |
Applications
| Industrial Motor Drive DC Bus Protection | Telecom Line Card Surge Suppression |
|---|---|
|
Use Scenario: Protecting IGBT gate drivers and bus voltage sense circuits from switching-induced voltage spikes in 48 V motor control inverters. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across DC bus rails and gate drive return paths to limit transient excursions to ≤162 V. Use Value: Prevents false triggering and latch-up in isolated gate drivers by holding rail voltage within ±10 % of nominal during 600 W surge events. |
Use Scenario: Safeguarding Ethernet PHY interfaces and PoE injectors against lightning-induced common-mode surges on RJ45 ports. IC Role / Device Role / Timing Role: Primary TVS on differential pairs and power delivery lines, absorbing >90 % of 10/1000 µs surge energy before reaching PHY IC. Use Value: Maintains signal integrity below 1.5 Vpp jitter threshold during 1 kV surge tests per IEC 61000-4-5, preserving 100BASE-TX link stability. |
| Automotive Body Control Module (BCM) Power Input | Consumer Appliance Mainboard AC-DC Converter Output |
|
Use Scenario: Securing 12 V input rails of BCMs against load dump and jump-start transients in passenger vehicles. IC Role / Device Role / Timing Role: First-line transient suppressor upstream of LDO regulators and CAN transceivers, activated within <1 ns of overvoltage onset. Use Value: Limits voltage overshoot to 162 V during ISO 7637-2 Pulse 5a (75 V, 100 ms), preventing regulator shutdown and microcontroller brownout. |
Use Scenario: Clamping output ripple and surge transients on 5 V/12 V rails of washing machine mainboards after bridge rectification and bulk capacitance. IC Role / Device Role / Timing Role: Secondary protection stage after fuse and MOV, providing precise clamping where MOV tolerance drift would compromise safety margins. Use Value: Delivers repeatable 162 V clamping independent of aging or temperature, ensuring consistent protection across 10-year product lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CAHE3_B/H | Same electrical specs and SMB package, but RoHS-compliant commercial grade (non-AEC-Q101); no halogen-free certification. | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated. | Select when cost sensitivity outweighs automotive reliability requirements and halogen-free material is not required. |
| SMAJ100CAHM3 | Lower 400 W PPPM rating; SMA (DO-214AC) package with smaller 4.57 mm × 2.69 mm footprint and higher RθJA (140 °C/W). | Reduced surge handling and thermal performance; requires larger copper area or lower ambient to avoid thermal runaway. | Choose only if board space is constrained and surge threat level is limited to IEC 61000-4-2 ESD (not full 10/1000 µs surges). |
Compared with SMBJ100CAHE3_B/H, the SMBJ100CAHM3_B/H adds halogen-free construction and AEC-Q101 validation without sacrificing clamping performance; versus SMAJ100CAHM3, it delivers +50 % pulse power headroom and superior thermal management in the same layout family.
Availability
SMBJ100CAHM3_B/H is available at Aetrix Electronics and suitable for industrial motor drives, telecom line cards, automotive body control modules, and consumer appliance power supplies requiring stable component supply with automotive-grade reliability and halogen-free compliance.
Supply support for SMBJ100CAHM3_B/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, MOSFETs, and protection devices with emphasis on high-reliability, high-efficiency, and AEC-Q qualified solutions.
The SMBJ series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where precise clamping, repeatable surge endurance, and process compatibility are critical.
FAQ
What is the clamping voltage of SMBJ100CAHM3_B/H at its rated peak pulse current?
The SMBJ100CAHM3_B/H has a maximum clamping voltage (VC) of 162 V when subjected to its specified peak pulse current (IPPM) of 3.7 A under the standard 10/1000 µs waveform. This value is measured per Vishay's datasheet (Doc. #88392, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ100CAHM3_B/H maintains this clamping performance consistently across its operational temperature range.
Is SMBJ100CAHM3_B/H suitable for automotive applications?
Yes, SMBJ100CAHM3_B/H is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant, and automotive-grade construction. It is validated for temperature cycling, mechanical shock, and humidity exposure per AEC-Q101 requirements, making it appropriate for under-hood and chassis-mounted modules such as body control units and power distribution centers. The SMBJ100CAHM3_B/H meets these standards without derating at 125 °C ambient.
How does the bidirectional nature of SMBJ100CAHM3_B/H affect PCB layout?
The SMBJ100CAHM3_B/H has no polarity marking and functions identically in both directions, eliminating orientation constraints during placement. This simplifies PCB layout by allowing rotation-independent mounting on differential lines or ungrounded rails, reducing assembly errors and enabling reuse across AC-coupled or floating signal paths. Unlike unidirectional variants, the SMBJ100CAHM3_B/H requires no cathode alignment check during automated optical inspection or manual rework.
What is the thermal resistance of SMBJ100CAHM3_B/H, and how does it impact heatsinking?
The SMBJ100CAHM3_B/H 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. This value assumes standard FR-4 PCB construction and dictates minimum copper area needed to maintain TJ ≤ 150 °C under sustained 5.0 W power dissipation. For higher ambient temperatures or repeated surges, increasing pad size or adding internal ground planes lowers effective RθJA - the SMBJ100CAHM3_B/H does not require external heatsinks in most applications.
Does SMBJ100CAHM3_B/H meet moisture sensitivity level (MSL) requirements for lead-free reflow?
Yes, SMBJ100CAHM3_B/H is rated MSL Level 1 per JEDEC J-STD-020, meaning it can be stored indefinitely at ≤30 °C/85 % RH and withstand peak reflow temperatures up to 260 °C without preconditioning or baking. Its matte tin-plated leads comply with J-STD-002 and JESD22-B102 solderability standards, ensuring reliable wetting during lead-free assembly. This MSL rating applies directly to the SMBJ100CAHM3_B/H part number as shipped in 7" tape-and-reel packaging.
SMBJ100CAHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- 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:
- 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_B/H FAQ
1.How can I place an order for SMBJ100CAHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ100CAHM3_B/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_B/H reliable?
The price and inventory of SMBJ100CAHM3_B/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_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ100CAHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ100CAHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ100CAHM3_B/H?
SMBJ100CAHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ100CAHM3_B/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_B/H?
For technical support, including SMBJ100CAHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ100CAHM3_B/H requirements.
6.How does Aetrix verify that SMBJ100CAHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ100CAHM3_B/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_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ100CAHM3_B/H?
All SMBJ100CAHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ100CAHM3_B/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_B/H part is unused and in its original packaging.
Return procedure for SMBJ100CAHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ100CAHM3_B/H Tags
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