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STMicroelectronics SMA6J100CA-TR
- Part No.:
- SMA6J100CA-TR
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J100CA-TR.pdf
- Description:
- TVS DIODE 100VWM 172VC SMA
- Quantity:
- Payment:
- Shipping:
Inventory:4,251
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Product details
Overview
SMA6J100CA-TR from STMicroelectronics is a bidirectional 600 W transient voltage suppression diode with a standoff voltage of 100 V, clamping voltage of 134 V at 4.6 A (10/1000 µs), and operating junction temperature up to +175 °C. It protects sensitive electronics against IEC 61000-4-2 ESD (30 kV air/contact) and IEC 61000-4-4 electrical fast transients (4 kV) in power supply inputs and communication interfaces.
For engineers reviewing the SMA6J100CA-TR datasheet, SMA6J100CA-TR pinout, SMA6J100CA-TR application, or SMA6J100CA-TR equivalent, key selection criteria include bidirectional surge capability, low leakage (<1 µA at 85 °C), JEDEC DO-214AC (SMA) package compatibility, and thermal robustness for industrial and automotive front-end protection.
Technical Context
This TVS diode uses planar silicon technology to achieve stable breakdown behavior and low dynamic resistance (3.29 Ω at 10/1000 µs), enabling precise clamping under repetitive surges. Its bidirectional configuration supports AC-coupled signal lines and symmetrical bus protection without polarity constraints.
The device complies with J-STD-020 MSL Level 1, UL94 V0 resin, and IPC7531 footprint standards-ensuring reliable reflow soldering and long-term reliability in high-temperature environments where junction stability is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRM) | 100 V - Maximum continuous reverse working voltage before conduction begins |
| Breakdown Voltage (VBR) | 110 V min / 116 V typ / 122 V max at 1 mA - Ensures predictable turn-on margin above VRM |
| Clamping Voltage (VCL) | 134 V at 4.6 A (10/1000 µs) - Limits transient voltage seen by downstream circuitry |
| Peak Pulse Power (PPP) | 600 W (10/1000 µs) - Sustains standard lightning-surge energy without degradation |
| Leakage Current (IRM) | 0.2 µA at 25 °C, 1 µA at 85 °C - Minimizes standby power loss in battery-powered systems |
| Junction Temperature Range | –55 °C to +175 °C - Supports operation in under-hood automotive and industrial motor drive environments |
| ESD Withstand | 30 kV contact & air discharge per IEC 61000-4-2 - Exceeds Level 4 immunity requirements |
Pinout & Package
Package: DO-214AC (SMA), JEDEC registered, surface-mount, epoxy-molded case meeting UL94 V0 flammability rating. Dimensions: D = 2.25–2.90 mm, E = 4.80–5.35 mm, E1 = 3.95–4.60 mm, L = 0.75–1.50 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (K) | Reverse-biased terminal for unidirectional mode; symmetric terminal in bidirectional configuration | In SMA6J100CA-TR, both terminals are functionally identical - no polarity marking required for AC protection |
| Anode (A) | Forward-biased terminal for unidirectional mode; symmetric terminal in bidirectional configuration | Terminal symmetry enables placement flexibility on PCBs with bidirectional signal paths or floating grounds |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional surge suppression | Enables single-device protection of AC lines, differential buses (e.g., RS-485), and transformer-coupled interfaces without polarity concerns |
| Low dynamic resistance (RD) | 3.29 Ω at 10/1000 µs - Reduces clamping voltage rise under high-current transients, improving system-level protection margin |
| High-temperature junction rating | +175 °C max operating Tj - Allows placement near heat sources (e.g., power MOSFETs, inductors) without derating |
| JEDEC DO-214AC (SMA) footprint | Compatible with IPC7531 standard land pattern - Ensures manufacturability and thermal performance on FR4 PCBs with 70 µm copper |
| UL94 V0 resin housing | Self-extinguishing encapsulation - Meets safety requirements for industrial and transportation equipment enclosures |
Applications
| Industrial PLC I/O Modules | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of 24 V DC digital input channels exposed to inductive kickback and load dump transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed across input terminals to clamp ±100 V surges within 1 ns response time. Use Value: Prevents microcontroller GPIO damage while maintaining <1 µA leakage at elevated ambient temperatures up to 85 °C. | Use Scenario: Surge suppression on LIN bus lines subject to battery transients and ESD events during service access. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing 4 kV EFT pulses (IEC 61000-4-4) and 30 kV ESD without latch-up. Use Value: Enables compliance with ISO 16750-2 and ISO 10605 without additional filtering components. |
| AC-DC Power Supply Inputs | RS-485 Communication Interfaces |
Use Scenario: Front-end protection of bridge rectifiers and bulk capacitors against line-side surges (e.g., lightning-induced). IC Role / Device Role / Timing Role: Bidirectional clamping device placed between L/N and earth ground to limit common-mode transients. Use Value: Delivers 600 W peak pulse power handling with <134 V clamping, preserving MOV and fuse coordination margins. | Use Scenario: Transient protection on half-duplex RS-485 transceiver data lines in factory automation networks. IC Role / Device Role / Timing Role: Low-capacitance (≈100 pF at 1 V) bidirectional TVS shunting differential surges between A/B lines. Use Value: Maintains signal integrity at 10 Mbps while suppressing ±30 kV ESD without distorting edge timing. |
Availability
SMA6J100CA-TR is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and AC-DC power supply inputs requiring stable component supply across extended temperature and surge stress conditions.
Supply support for SMA6J100CA-TR 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, MCU, power, and sensing solutions for industrial, automotive, and consumer markets.
The SMA6J series belongs to ST's transient voltage suppression portfolio, engineered specifically for high-reliability front-end protection in harsh electromagnetic environments where thermal stability and repeatable clamping performance are mandatory.
FAQ
What is the difference between SMA6J100CA-TR and SMA6J100A-TR?
SMA6J100CA-TR is bidirectional (symmetrical clamping for both polarities), while SMA6J100A-TR is unidirectional (clamps only in reverse bias). The 'C' suffix denotes bidirectional functionality, making the CA version suitable for AC-coupled or floating-ground applications like RS-485 or transformer-isolated interfaces.
Does SMA6J100CA-TR meet automotive qualification standards?
SMA6J100CA-TR is not AEC-Q200 qualified, but its –55 °C to +175 °C junction temperature range, 30 kV ESD immunity, and 4 kV EFT robustness align with many automotive subsystem requirements. For AEC-Q200-compliant designs, ST recommends the Automotive-grade SMA6JxxCA-Q series with full qualification documentation.
Can SMA6J100CA-TR replace P6SMB100CA in an existing design?
Yes-both are bidirectional 100 V TVS diodes in DO-214AA/SMA packages with comparable clamping (P6SMB100CA: 137 V @ 4.4 A). SMA6J100CA-TR offers lower leakage (0.2 µA vs. 1 µA at 25 °C) and higher thermal rating (+175 °C vs. +150 °C), improving reliability in thermally constrained layouts.
What is the recommended PCB footprint for SMA6J100CA-TR?
The manufacturer specifies an IPC7531-compliant SMA footprint: pad length 5.43 mm (2.63 mm center-to-center), pad width 1.40 mm, and copper area ≥1.64 cm² per lead. Use 70 µm Cu thickness on FR4 to maintain thermal resistance ≤140 °C/W and avoid solder joint fatigue during repeated surge events.
SMA6J100CA-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-214AC, SMA
- Series:
- SMA6J, TRANSIL™
- 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:
- 172V
- Current - Peak Pulse (10/1000µs):
- 19A (8/20µs)
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA6J100CA-TR FAQ
1.How can I place an order for SMA6J100CA-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J100CA-TR 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 SMA6J100CA-TR reliable?
The price and inventory of SMA6J100CA-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J100CA-TR is usually 5 days.
3.What payment methods are accepted for SMA6J100CA-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J100CA-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J100CA-TR?
SMA6J100CA-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J100CA-TR 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 SMA6J100CA-TR?
For technical support, including SMA6J100CA-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J100CA-TR requirements.
6.How does Aetrix verify that SMA6J100CA-TR is sourced from the original manufacturer or authorized distributors?
All SMA6J100CA-TR 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 SMA6J100CA-TR meets industry standards.
7.What is the process for return or replacement of SMA6J100CA-TR?
All SMA6J100CA-TR units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J100CA-TR, 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 SMA6J100CA-TR part is unused and in its original packaging.
Return procedure for SMA6J100CA-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6J100CA-TR Tags
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