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Vishay General Semiconductor - Diodes Division SMCJ100AHM3_A/I
- Part No.:
- SMCJ100AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ100AHM3_A/I.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,523
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Product details
Overview
SMCJ100AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 100 V standoff voltage (VWM), 162 V maximum clamping voltage (VC) at 9.3 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM). It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and lightning-induced surges in automotive and industrial power rails.
For engineers reviewing the SMCJ100AHM3_A/I datasheet, SMCJ100AHM3_A/I pinout, SMCJ100AHM3_A/I application, or SMCJ100AHM3_A/I equivalent, key selection criteria include verified unidirectional polarity, AEC-Q101 qualification status, halogen-free RoHS compliance (HM3 suffix), 150 °C max junction temperature, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode operates as a clamping device that remains non-conductive below its 100 V stand-off voltage (VWM) and rapidly transitions to low-impedance conduction when transient voltages exceed its 111–123 V breakdown range (VBR) at 1 mA test current. Its glass-passivated junction ensures stable leakage performance and fast response time under 10/1000 µs surge waveforms.
Thermal design relies on RθJA = 75 °C/W and RθJL = 15 °C/W, requiring minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal for rated 1500 W pulse handling. The HM3 suffix confirms halogen-free, RoHS-compliant construction qualified to AEC-Q101 for automotive use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC rail margin. |
| VBR min/max | 111 V / 123 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 162 V at 9.3 A - Clamped voltage during 10/1000 µs surge; determines protected circuit's maximum transient exposure. |
| PPPM | 1500 W - Peak pulse power rating; specifies single-event surge energy absorption capability. |
| ID @ VWM | 1.0 µA - Reverse leakage at full stand-off voltage; critical for low-power sensor and battery-backed circuits. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive and industrial environments. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with cathode band marking; supports automated pick-and-place. |
Pinout & Package
SMCJ100AHM3_A/I uses the SMC (DO-214AB) package: a rectangular, low-profile surface-mount case with two terminals, matte tin-plated leads solderable per J-STD-002, and cathode identification via a visible band on the unidirectional device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to system ground or lower-potential node; completes clamping path during positive transients. |
| Cathode | Reverse-biased terminal (marked) | Connected to protected line (e.g., 12 V rail); conducts surge current to ground when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS power supplies. |
| Halogen-free & RoHS-compliant (HM3) | Meets IEC 61249-2-21 and JEDEC J-STD-20 MSL level 1 (260 °C peak reflow). |
| Low incremental surge resistance | Enables tight clamping (VC/VBR ratio = 1.46) and minimal voltage overshoot during fast transients. |
| Glass passivated junction | Ensures stable VBR tolerance and <1.0 µA leakage at VWM across -55 °C to +150 °C. |
| 1500 W 10/1000 µs rating | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity without external series impedance. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V/24 V supply lines in engine control modules from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between rail and chassis ground. Use Value: Limits transient excursions to ≤162 V, preventing damage to microcontrollers and CAN transceivers rated for 36 V absolute max. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors. IC Role / Device Role / Timing Role: Standby-mode protector absorbing ESD and cable discharge events up to ±15 kV contact. Use Value: Maintains <1.0 µA leakage at 24 V, preserving loop accuracy while clamping transients within 1 ns response time. |
| Telecom DC Power Input Protection | Consumer Device USB Power Line Protection |
|
Use Scenario: Securing -48 V telecom rectifier outputs against lightning-induced surges on outdoor cabinet feeds. IC Role / Device Role / Timing Role: High-power unidirectional clamp referenced to negative rail (cathode to -48 V line). Use Value: Handles 1500 W pulses without degradation, meeting Telcordia GR-1089-CORE Level 3 surge requirements. |
Use Scenario: Adding secondary surge protection on 5 V USB VBUS lines in smart home hubs and docking stations. IC Role / Device Role / Timing Role: Secondary TVS after primary fuse and common-mode choke; cathode tied to VBUS. Use Value: Clamps 100 V transients to 162 V within nanoseconds, preventing latch-up in USB PD controllers and port switches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100AHE3/A | Lower PPPM (400 W), SMA package (smaller thermal mass), same VWM/VBR range. | Restricted to lower-energy surges; unsuitable for IEC 61000-4-5 Level 4 or automotive load dump. | Select only for space-constrained consumer PCBs where surge threat level is limited to ESD and local switching noise. |
| SMCJ100AHE3_A/I | Same electrical specs but E3 (non-halogen-free) RoHS variant; lacks AEC-Q101 qualification. | Not approved for automotive under-hood use; acceptable for industrial/commercial power supplies. | Choose when halogen-free requirement is waived and AEC-Q101 is not mandated by end-customer specification. |
Compared with SMCJ100AHM3_A/I, SMAJ100AHE3/A offers reduced surge capacity in a smaller footprint, while SMCJ100AHE3_A/I provides identical clamping performance without halogen-free or automotive qualification-making SMCJ100AHM3_A/I the sole choice for AEC-Q101-compliant, high-reliability deployments.
Availability
SMCJ100AHM3_A/I is available at Aetrix Electronics and suitable for automotive electronics, industrial motor drives, telecom power systems, and consumer device power input stages requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ100AHM3_A/I 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 reliability, efficiency, and application-specific validation.
The SMCJ series targets high-energy transient suppression in harsh environments, with design focus on automotive-grade robustness, precise clamping, and compatibility with automated manufacturing processes.
FAQ
What is the clamping voltage of SMCJ100AHM3_A/I at its rated peak pulse current?
The SMCJ100AHM3_A/I has a maximum clamping voltage (VC) of 162 V when subjected to its rated 10/1000 µs peak pulse current of 9.3 A. This value is measured under standardized test conditions with 0.31" × 0.31" copper pads and defines the upper voltage limit imposed on protected circuitry during surge events. The SMCJ100AHM3_A/I maintains this clamping performance across its full operating temperature range.
Is SMCJ100AHM3_A/I qualified for automotive applications?
Yes, SMCJ100AHM3_A/I is AEC-Q101 qualified, as confirmed by the HM3 suffix and Vishay documentation. It meets stress testing requirements for temperature cycling, humidity, mechanical shock, and surge immunity applicable to automotive power electronics. This qualification supports use in engine control units, body control modules, and ADAS subsystems where reliability under extended temperature and vibration is mandatory.
What does the "HM3" suffix indicate for SMCJ100AHM3_A/I?
The "HM3" suffix on SMCJ100AHM3_A/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from E3 (RoHS-compliant, commercial grade) and HE3 (RoHS-compliant, AEC-Q101) versions. HM3 devices meet JEDEC J-STD-20 MSL level 1 and comply with IEC 61249-2-21 for halogen content, making them suitable for environmentally regulated automotive and industrial programs.
Can SMCJ100AHM3_A/I be used in bidirectional configurations?
No, SMCJ100AHM3_A/I is a unidirectional TVS diode, indicated by the "A" (not "CA") suffix and cathode band marking. Bidirectional operation requires the "CA" suffix (e.g., SMCJ100CA), which features symmetrical breakdown in both polarities. Using SMCJ100AHM3_A/I in reverse-biased AC applications risks permanent failure due to forward conduction during negative half-cycles.
What is the thermal resistance from junction to ambient for SMCJ100AHM3_A/I?
The typical thermal resistance from junction to ambient (RθJA) for SMCJ100AHM3_A/I is 75 °C/W, measured on standard 0.31" × 0.31" copper pads per terminal. This value assumes no additional heatsinking and defines the temperature rise above ambient under steady-state power dissipation. For pulsed operation, transient thermal impedance curves (Fig. 5 in the datasheet) govern short-duration surge thermal behavior.
SMCJ100AHM3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 162V
- Current - Peak Pulse (10/1000µs):
- 9.3A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMC)
SMCJ100AHM3_A/I FAQ
1.How can I place an order for SMCJ100AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ100AHM3_A/I 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 SMCJ100AHM3_A/I reliable?
The price and inventory of SMCJ100AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ100AHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMCJ100AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ100AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ100AHM3_A/I?
SMCJ100AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ100AHM3_A/I 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 SMCJ100AHM3_A/I?
For technical support, including SMCJ100AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ100AHM3_A/I requirements.
6.How does Aetrix verify that SMCJ100AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMCJ100AHM3_A/I 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 SMCJ100AHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMCJ100AHM3_A/I?
All SMCJ100AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ100AHM3_A/I, 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 SMCJ100AHM3_A/I part is unused and in its original packaging.
Return procedure for SMCJ100AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ100AHM3_A/I Tags
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