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Vishay General Semiconductor - Diodes Division SMBJ100CAHM3/H
- Part No.:
- SMBJ100CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ100CAHM3/H.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,864
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Product details
Overview
SMBJ100CAHM3/H from Vishay General Semiconductor is a bidirectional 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 SMBJ100CAHM3/H datasheet, SMBJ100CAHM3/H pinout, SMBJ100CAHM3/H application, or SMBJ100CAHM3/H equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, AEC-Q101 qualification status, halogen-free RoHS compliance, and real-world use context for surge protection design validation.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling suppression of positive and negative transients without polarity dependency. Its glass-passivated junction ensures stable VBR tolerance and low leakage (<1.0 µA at VWM), while the 100 °C/W junction-to-ambient thermal resistance supports operation up to +150 °C junction temperature under defined PCB pad conditions.
The device meets MSL Level 1 per J-STD-020 with 260 °C reflow peak, and its 20 °C/W junction-to-lead thermal resistance enables effective heat dissipation during repetitive surge events. The 0.057 %/°C temperature coefficient of VBR ensures predictable voltage drift across operating temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse working voltage before clamping initiates; defines safe operating margin below breakdown. |
| VBR (min/max) | 111 V / 123 V at 1 mA - Confirmed breakdown threshold range; ensures reliable turn-on during overvoltage events. |
| VC @ IPPM | 162 V at 3.7 A - Clamped voltage during 10/1000 µs surge; determines protected circuit's maximum transient exposure. |
| PPPM | 600 W - Peak pulse power handling capability; validates suitability for IEC 61000-4-5 Level 3/4 surge immunity. |
| IPPM | 3.7 A - Peak pulse current supported at rated clamping voltage; correlates directly with surge energy absorption (≈ 0.37 J). |
| TJ max. | +150 °C - Maximum junction temperature; sets thermal derating boundary for sustained or repetitive surge duty cycles. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with automated placement and IPC-7351B land patterns. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (negative half-cycle) | Accepts reverse surge current during negative transients; forms symmetrical conduction path with cathode. |
| Cathode | Transient current entry point (positive half-cycle) | Accepts forward surge current during positive transients; completes bidirectional clamping loop with anode. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without external polarity management. |
| 600 W peak pulse power (10/1000 µs) | Supports EN 61000-4-5 4 kV surge testing on 2 Ω source impedance with margin. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive powertrain and body electronics applications requiring reliability under temperature cycling and humidity bias. |
| Halogen-free & RoHS-compliant | Meets IEC 61249-2-21 and JEDEC J-STD-609A Class 1 requirements for green manufacturing and end-of-life processing. |
| MSL Level 1 (260 °C peak) | Permits standard SMT reflow without moisture sensitivity concerns or baking preconditioning. |
Applications
| Industrial Motor Drives | Telecom Line Interfaces |
|---|---|
|
Use Scenario: Protection of gate drivers and feedback sensing circuits against inductive kickback from IGBT/MOSFET switching in variable-frequency drives. IC Role / Device Role / Timing Role: Bidirectional TVS placed across DC bus or isolated signal paths to clamp ±1.2 kV surges induced by load switching. Use Value: Limits transient voltage to ≤162 V, preventing latch-up or oxide rupture in 3.3 V/5 V control ICs downstream of isolation barriers. |
Use Scenario: Surge suppression on RS-485/RS-232 data lines connecting base stations to remote sensors in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Primary front-end protection device shunting lightning-induced common-mode transients before signal conditioning amplifiers. Use Value: Absorbs 0.37 J per event with <1 ns response time, preserving signal integrity and avoiding false triggering in timing-critical UART communication. |
| Automotive Body Control Modules | Consumer Power Adapters |
|
Use Scenario: Input-stage protection for LIN bus transceivers and LED driver ICs exposed to load dump and jump-start transients in vehicle interior modules. IC Role / Device Role / Timing Role: AEC-Q101-qualified bidirectional clamp on 12 V supply rail feeding microcontroller peripherals. Use Value: Withstands 100 ms load dump pulses up to 35 V and fast ESD bursts per ISO 10605, ensuring zero field failures in cabin lighting systems. |
Use Scenario: Secondary-side overvoltage clamp on USB-C PD adapter output rails protecting connected devices from regulator fault conditions. IC Role / Device Role / Timing Role: Last-line defense against 100 V+ overshoot during CC/CV mode transitions in synchronous buck controllers. Use Value: Clamps within 162 V while maintaining <1 µA leakage at 100 V, eliminating standby power loss and enabling Energy Star compliance. |
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/H | Same electrical specs and SMB package, but RoHS-compliant commercial grade (non-AEC-Q101, non-halogen-free). | Lacks automotive qualification and halogen-free certification; suitable for industrial/commercial designs without automotive compliance mandates. | Select when AEC-Q101 and halogen-free requirements are not required, and cost optimization is prioritized. |
| SMAJ100CAHM3 | Lower 400 W PPPM, same VWM/VBR, SMA (DO-214AC) package - 20 % smaller footprint, higher RθJA (140 °C/W). | Reduced surge margin; requires tighter thermal layout; limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only). | Choose only if board space is constrained and surge threat level is ≤2 kV; verify thermal performance with reduced copper area. |
Compared with SMBJ100CAHE3/H, the SMBJ100CAHM3/H adds AEC-Q101 qualification and halogen-free compliance without sacrificing clamping performance; versus SMAJ100CAHM3, it delivers 50 % higher surge energy handling and superior thermal robustness in the same PCB assembly process.
Availability
SMBJ100CAHM3/H is available at Aetrix Electronics and suitable for industrial motor drives, telecom line interfaces, automotive body control modules, and consumer power adapters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ100CAHM3/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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for demanding industrial and automotive environments.
The SMBJ series is engineered specifically for high-energy transient suppression in harsh electromagnetic environments, targeting applications where failure due to voltage surges must be eliminated - including automotive ECUs, industrial PLCs, and telecom infrastructure.
FAQ
What is the clamping voltage of SMBJ100CAHM3/H at its rated peak pulse current?
The SMBJ100CAHM3/H has a maximum clamping voltage (VC) of 162 V at its rated peak pulse current (IPPM) of 3.7 A under the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ100CAHM3/H maintains this clamping performance across its full operating temperature range of -55 °C to +150 °C.
Is SMBJ100CAHM3/H suitable for automotive applications?
Yes, SMBJ100CAHM3/H is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials - making it suitable for automotive body electronics, infotainment systems, and power distribution modules. Its qualification covers temperature cycling, humidity bias, and mechanical shock tests per AEC-Q101 Rev D. The SMBJ100CAHM3/H is explicitly designated for automotive use via the "HM3" suffix and "_H" packaging code in Vishay's ordering nomenclature.
How does the bidirectional configuration of SMBJ100CAHM3/H affect its circuit placement?
The SMBJ100CAHM3/H has no polarity marking and conducts identically in both directions, allowing direct placement across AC-coupled lines, transformer secondaries, or differential buses like RS-485 without orientation constraints. Unlike unidirectional TVS diodes, it eliminates the need for series blocking diodes or dual-device arrangements. This simplifies layout, reduces BOM count, and ensures consistent clamping behavior regardless of transient polarity - critical for protecting floating or balanced signal paths.
What is the thermal resistance specification for SMBJ100CAHM3/H, and how does it impact PCB layout?
The SMBJ100CAHM3/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, and a junction-to-lead resistance (RθJL) of 20 °C/W. These values require adherence to Vishay's recommended pad layout to sustain repetitive surges. Reducing copper area increases RθJA, risking thermal runaway during multiple events - so the SMBJ100CAHM3/H must be placed on minimum specified pads or augmented with thermal vias for high-duty-cycle applications.
Does SMBJ100CAHM3/H meet moisture sensitivity level (MSL) requirements for lead-free reflow?
Yes, SMBJ100CAHM3/H meets MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C. This means it can be processed using standard lead-free SMT reflow profiles without pre-baking or dry-packaging - significantly simplifying manufacturing logistics. The device's molding compound complies with UL 94 V-0 flammability rating, and its matte tin-plated leads ensure reliable solder wetting per J-STD-002 and JESD 22-B102 standards.
SMBJ100CAHM3/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:
- 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:
- 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/H FAQ
1.How can I place an order for SMBJ100CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ100CAHM3/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/H reliable?
The price and inventory of SMBJ100CAHM3/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/H is usually 5 days.
3.What payment methods are accepted for SMBJ100CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ100CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ100CAHM3/H?
SMBJ100CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ100CAHM3/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/H?
For technical support, including SMBJ100CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ100CAHM3/H requirements.
6.How does Aetrix verify that SMBJ100CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ100CAHM3/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/H meets industry standards.
7.What is the process for return or replacement of SMBJ100CAHM3/H?
All SMBJ100CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ100CAHM3/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/H part is unused and in its original packaging.
Return procedure for SMBJ100CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ100CAHM3/H Tags
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