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STMicroelectronics SMA6J10A-TR
- Part No.:
- SMA6J10A-TR
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J10A-TR.pdf
- Description:
- TVS DIODE 10VWM 19.6VC SMA
- Quantity:
- Payment:
- Shipping:
Inventory:6,103
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Product details
Overview
SMA6J10A-TR from STMicroelectronics is a unidirectional 600 W transient voltage suppression (TVS) diode designed for primary-level ESD and surge protection in DC power rails and signal lines. It features a 10 V standoff voltage (VRM), 15.7 V clamping voltage at 37 A (8/20 μs), and low leakage current of 0.2 µA at 25 °C - enabling reliable protection in automotive body electronics and industrial I/O interfaces.
For engineers reviewing the SMA6J10A-TR datasheet, SMA6J10A-TR pinout, SMA6J10A-TR application, or SMA6J10A-TR equivalent, key selection criteria include clamping performance under 8/20 μs surges, junction temperature derating above 125 °C, JEDEC DO-214AC (SMA) package compatibility with IPC-7531 footprints, and IEC 61000-4-2/4-4 compliance for system-level immunity validation.
Technical Context
This TVS diode uses planar silicon technology to achieve stable breakdown behavior and low dynamic resistance (0.093 Ω at 10/1000 μs), ensuring predictable clamping across temperature and pulse duration. Its unidirectional configuration provides asymmetric protection-forward conduction during overvoltage events while blocking reverse leakage below VRM.
The device operates across -55 °C to +175 °C junction temperature range and maintains ≤1 µA leakage up to 85 °C ambient, supporting long-term reliability in thermally stressed environments such as engine control units and motor drive feedback circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRM) | 10 V - maximum continuous reverse operating voltage before breakdown begins |
| Clamping Voltage (VCL) | 15.7 V at 37 A (8/20 μs) - peak voltage seen by protected circuit during worst-case surge |
| Peak Pulse Power (PPP) | 600 W (10/1000 μs) - energy-handling capability for lightning-induced transients per IEC 61000-4-5 |
| Leakage Current (IRM) | 0.2 µA at 25 °C - minimal parasitic loading on high-impedance sensor or reference circuits |
| Junction Temperature Range | -55 °C to +175 °C - supports operation in under-hood automotive and industrial power supply applications |
| ESD Withstand (IEC 61000-4-2) | 30 kV contact & air discharge - exceeds Level 4 for robust human-body-model immunity |
| Dynamic Resistance (RD) | 0.093 Ω (10/1000 μs) - low impedance limits voltage overshoot during fast-rising transients |
Pinout & Package
Package: DO-214AC (SMA), JEDEC registered outline, surface-mount, epoxy-molded case meeting UL94 V0 flammability rating. Dimensions: 4.80–5.35 mm length × 2.25–2.90 mm width × 2.26–2.46 mm height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked band) | Surge current sink node | Connected to ground or low-impedance return path to clamp positive transients on protected line |
| Anode | Protected line interface | Connected directly to input rail or signal trace requiring overvoltage protection |
Key Features
| Feature | Design Value |
|---|---|
| Low clamping ratio (VCL/VRM = 1.57) | Minimizes stress on downstream ICs during 8/20 μs surges without excessive voltage margin overhead |
| High-temperature leakage stability | ≤1 µA at 85 °C enables use in sealed enclosures with limited airflow and thermal buildup |
| JEDEC MSL Level 1 rating | Unlimited floor life at ≤30 °C/60% RH - eliminates bake requirements prior to reflow assembly |
| Planar junction construction | Ensures consistent VBR tolerance (±5%) and long-term parameter stability vs. process drift |
| UL94 V0 resin encapsulation | Meets fire-safety requirements for industrial control panels and automotive cabin modules |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting 12 V CAN bus power rail against load dump and jump-start transients. IC Role / Device Role / Timing Role: Primary clamping element placed between fused battery feed and local LDO regulator input. Use Value: Limits voltage excursion to ≤15.7 V during 37 A surge, preventing LDO overvoltage shutdown and preserving MCU operation. |
Use Scenario: Safeguarding 24 V discrete input channel against field-wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: First-line protection ahead of optocoupler input stage and series current-limiting resistor. Use Value: Clamps 30 kV ESD events within 1 ns, avoiding optocoupler damage and maintaining isolation integrity. |
| Smart Meter Power Supply | Medical Diagnostic Sensor Interface |
Use Scenario: Shielding AC/DC converter auxiliary bias rail from mains-borne surges. IC Role / Device Role / Timing Role: Parallel-connected TVS across secondary-side 12 V output, coordinated with X/Y-capacitor filtering. Use Value: Absorbs 600 W (10/1000 μs) without degradation, extending capacitor lifetime and reducing failure-in-field risk. |
Use Scenario: Guarding analog front-end inputs of ECG/EEG acquisition circuits against operator touch discharge. IC Role / Device Role / Timing Role: Low-leakage (0.2 µA) TVS placed immediately at connector entry point, before precision amplifier. Use Value: Prevents amplifier saturation and baseline shift during 30 kV contact discharge while adding <0.1 pF capacitance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A-TR | Same DO-214AC package but lower PPP (400 W @ 10/1000 μs); higher VCL (17.0 V @ 24.4 A) | Limited to lower-energy surge environments (e.g., consumer USB ports) | Select when cost sensitivity outweighs need for full 600 W immunity margin |
| 1.5SMC10A | Higher package thermal mass (DO-214AB), 600 W rating, but larger footprint and 18.2 V VCL | Preferred where board space allows and higher clamping voltage is acceptable | Choose for legacy designs using SMC pads or where enhanced thermal dissipation is required |
Compared with SMAJ10A-TR and 1.5SMC10A, SMA6J10A-TR delivers superior clamping tightness (15.7 V vs. ≥17.0 V) and identical 600 W surge rating in the smallest standard SMA footprint - making it optimal for space-constrained, high-reliability 12 V systems.
Availability
SMA6J10A-TR is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, smart meter power supplies, and medical sensor interfaces requiring stable component supply across extended temperature and surge immunity specifications.
Supply support for SMA6J10A-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, specializing in power management, analog, MEMS, and microcontroller technologies for automotive, industrial, and consumer markets.
SMA6JxxA belongs to ST's high-reliability TVS diode product line, engineered specifically for demanding ESD/surge protection in automotive-grade and industrial-grade power and signal paths where long-term parametric stability and high-temperature operation are mandatory.
FAQ
What is the maximum peak pulse current (IPP) for SMA6J10A-TR under an 8/20 μs waveform?
The SMA6J10A-TR sustains a peak pulse current of 37 A under an 8/20 μs surge waveform, corresponding to its 600 W peak pulse power rating and 15.7 V clamping voltage. This value is measured at Tj = 25 °C and confirmed in Table 2 of DS5142 Rev 11, with derating applied above 125 °C junction temperature.
Does SMA6J10A-TR meet automotive AEC-Q200 qualification requirements?
No - SMA6J10A-TR is not AEC-Q200 qualified. It is rated for operation up to +175 °C junction temperature and complies with IEC 61000-4-2/4-4, but ST does not list it in their AEC-Q200 stress-tested portfolio. For automotive-critical applications, ST recommends the AEC-Q200-qualified SMA6J10AY variant.
How does the dynamic resistance (RD) affect clamping performance during fast transients?
With RD = 0.093 Ω (10/1000 μs), SMA6J10A-TR exhibits minimal voltage rise beyond VBR during surge events - e.g., a 30 A transient adds only ~2.8 V overhead. This low RD ensures tighter clamping than alternatives like SMAJ10A-TR (RD ≈ 0.12 Ω), critical for protecting low-voltage logic interfaces.
Can SMA6J10A-TR be used in bidirectional signal line protection?
No - SMA6J10A-TR is unidirectional and conducts only in reverse breakdown. For bidirectional protection (e.g., RS-485, USB D+/D−), the SMA6J10CA-TR variant must be used. Using the 'A' version on AC-coupled or symmetrical lines risks forward conduction and unintended current paths.
SMA6J10A-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-214AC, SMA
- Series:
- SMA6J, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 19.6V
- Current - Peak Pulse (10/1000µs):
- 184A (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)
SMA6J10A-TR FAQ
1.How can I place an order for SMA6J10A-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J10A-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 SMA6J10A-TR reliable?
The price and inventory of SMA6J10A-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J10A-TR is usually 5 days.
3.What payment methods are accepted for SMA6J10A-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J10A-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J10A-TR?
SMA6J10A-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J10A-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 SMA6J10A-TR?
For technical support, including SMA6J10A-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J10A-TR requirements.
6.How does Aetrix verify that SMA6J10A-TR is sourced from the original manufacturer or authorized distributors?
All SMA6J10A-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 SMA6J10A-TR meets industry standards.
7.What is the process for return or replacement of SMA6J10A-TR?
All SMA6J10A-TR units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J10A-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 SMA6J10A-TR part is unused and in its original packaging.
Return procedure for SMA6J10A-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6J10A-TR Tags
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