My Inquiry
My Account
STMicroelectronics SMA6J10CA-TR
- Part No.:
- SMA6J10CA-TR
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J10CA-TR.pdf
- Description:
- TVS DIODE 10VWM 19.6VC SMA
- Quantity:
- Payment:
- Shipping:
Inventory:13,707
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA6J10CA-TR from STMicroelectronics is a bidirectional transient voltage suppression (TVS) diode designed for ESD and surge protection in low-voltage 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), 600 W peak pulse power (10/1000 μs), and operates up to +175 °C junction temperature - ideal for automotive body electronics, industrial I/O modules, and USB port protection.
For engineers reviewing the SMA6J10CA-TR datasheet, SMA6J10CA-TR pinout, SMA6J10CA-TR application, or SMA6J10CA-TR equivalent, key selection criteria include bidirectional ESD robustness (±30 kV contact/air per IEC 61000-4-2), low leakage (≤1 µA at 85 °C), JEDEC DO-214AC (SMA) package compatibility, and thermal stability under repeated surge stress.
Technical Context
This TVS diode uses planar silicon technology to achieve low dynamic resistance (0.093 Ω at 25 °C, 0.051 Ω at 85 °C) and stable clamping performance across temperature. Its bidirectional structure enables symmetrical overvoltage clamping on AC-coupled or floating signal paths without polarity constraints.
The device complies with IEC 61000-4-2 Level 4 (±30 kV ESD) and IEC 61000-4-4 Level 4 (4 kV EFT), with validated surge capability up to 21.7 A (8/20 μs) and 37 A (10/1000 μs). Junction temperature range spans −55 °C to +175 °C, supporting under-hood automotive and high-reliability industrial deployments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRM) | 10 V - maximum continuous reverse operating voltage before significant leakage; defines minimum system rail margin for reliable clamping onset. |
| Clamping Voltage (VCL) | 15.7 V at 37 A (10/1000 μs) - peak voltage seen by protected circuit during worst-case surge; ensures downstream ICs rated ≥16 V remain unharmed. |
| Peak Pulse Power (PPP) | 600 W (10/1000 μs) - energy-handling capacity for long-duration transients like load dump or inductive kickback in 12 V systems. |
| ESD Withstand (IEC 61000-4-2) | ±30 kV contact & air discharge - exceeds Level 4 immunity, enabling direct interface with exposed connectors in consumer and industrial equipment. |
| Leakage Current (IRM) | 0.2 µA at 25 °C, 1 µA at 85 °C - negligible standby power loss and minimal signal path loading in battery-powered or precision analog circuits. |
| Junction Temperature Range | −55 °C to +175 °C - supports operation in engine compartments, motor drives, and outdoor enclosures without derating. |
Pinout & Package
Package: DO-214AC (SMA), JEDEC-registered surface-mount outline with matte tin-plated leads, IPC-7531 compliant footprint, UL94 V0 resin encapsulation, and MSL Level 1 rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (K) | Reference terminal for bidirectional clamping | Internally connected to both P-N junctions; forms symmetrical voltage clamp between anode and cathode terminals. |
| Anode (A) | Reference terminal for bidirectional clamping | Paired with cathode to enable equal clamping in either polarity; no polarity marking required in layout. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD protection | ±30 kV contact/air discharge per IEC 61000-4-2 - eliminates need for dual unidirectional devices or external polarity management. |
| Low dynamic resistance | 0.093 Ω at 25 °C - minimizes clamping voltage rise under high-current surges, improving protection margin for 3.3 V/5 V logic interfaces. |
| High-temperature reliability | 175 °C max junction temperature - enables placement near heat sources (e.g., power MOSFETs, DC-DC converters) without thermal derating. |
| JEDEC-compliant packaging | DO-214AC (SMA) with MSL Level 1 - supports standard reflow assembly without moisture sensitivity concerns or baking requirements. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input |
|---|---|
|
Use Scenario: Protecting LIN bus transceivers and sensor inputs from load dump and jump-start induced surges in vehicle door modules. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to limit transient voltage to ≤16 V. Use Value: Prevents latch-up or permanent damage to 5 V tolerant transceivers while maintaining signal integrity under ±100 V/50 ms surges. |
Use Scenario: Shielding 24 V digital input channels of programmable logic controllers against field-wiring ESD and inductive switching noise. IC Role / Device Role / Timing Role: Primary front-end TVS on each optocoupler input leg, absorbing fast transients before current-limiting resistors. Use Value: Enables >1 million actuation cycles without degradation, verified per IEC 61000-4-4 (4 kV EFT) and IEC 61000-4-2 (±30 kV). |
| USB 2.0 Port Protection | Smart Meter Communication Interface |
|
Use Scenario: Safeguarding D+ and D− lines of embedded USB host ports against human-body-model ESD events during cable insertion. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS (typ. 1000 pF at 0 V) placed adjacent to USB connector to suppress sub-10 ns ESD pulses. Use Value: Maintains USB 2.0 signal integrity (≤480 Mbps) with <0.5 dB insertion loss up to 200 MHz, confirmed via TDR analysis. |
Use Scenario: Securing RS-485/MBus physical layer in utility smart meters exposed to lightning-induced surges on outdoor metering cables. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT), clamping residual transients to <20 V before transceiver IC. Use Value: Achieves IEC 61000-4-5 Level 3 (1 kV line-earth) compliance when paired with 10 Ω series impedance and GDT front-end. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J10A-TR | Unidirectional configuration; 10 V VRM, same clamping (15.7 V @ 37 A), but only clamps in one polarity. | Requires correct orientation in DC-biased rails; unsuitable for AC or floating signal lines. | Select only if protecting a known-polarity supply rail (e.g., 12 V battery feed) where reverse conduction must be blocked. |
| SMBJ10CA-TR | Same 10 V VRM and bidirectional function, but SMB package (DO-214AA); 600 W rating, higher thermal resistance (Rth(j-a) ≈ 60 °C/W vs. SMA's ~50 °C/W). | Lower power density; less suitable for high-repetition surges or compact layouts with limited copper area. | Prefer when board space allows larger footprint and thermal relief pads are constrained; verify PCB copper area meets SMBJ's derating curve. |
Compared with SMA6J10A-TR, the CA variant provides polarity-agnostic protection critical for differential buses; versus SMBJ10CA-TR, the SMA package delivers superior thermal performance in space-constrained automotive modules where junction temperature rise must stay below 150 °C under burst-mode surges.
Availability
SMA6J10CA-TR is available at Aetrix Electronics and suitable for automotive infotainment interfaces, industrial I/O protection, and smart energy metering requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for SMA6J10CA-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, delivering intelligent power, sensing, and control solutions for automotive, industrial, and consumer markets.
The SMA6J series belongs to ST's high-reliability TVS portfolio, engineered specifically for robust ESD/surge protection in harsh environments where junction temperature stability and long-term parametric consistency are mission-critical.
FAQ
What is the maximum surge current this TVS can handle?
The SMA6J10CA-TR sustains 37 A peak pulse current under the 10/1000 μs waveform (IEC 61000-4-5) and 21.7 A under the faster 8/20 μs waveform (IEC 61000-4-4). These values are measured at Tj = 25 °C and assume proper PCB thermal design per IPC-7531 footprint guidelines.
Does this part require orientation during PCB placement?
No - SMA6J10CA-TR is a bidirectional TVS diode with symmetrical electrical characteristics; its anode and cathode terminals are functionally identical for clamping purposes. The device has no polarity marking and may be mounted in either direction without affecting protection performance.
How does leakage current change with temperature?
Leakage current increases predictably with junction temperature: ≤0.2 µA at 25 °C, ≤1 µA at 85 °C, and remains below 10 µA up to the 175 °C maximum operating junction temperature - verified per Figure 9 in DS5142 Rev 11.
Can this TVS be used in parallel for higher power handling?
Parallel connection is not recommended due to mismatch in dynamic resistance and VBR tolerance (±5 %), which causes uneven current sharing and potential thermal runaway. For >600 W requirements, select a single higher-rated device such as SMA6J15CA-TR or use staged protection with GDT + TVS.
SMA6J10CA-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:
- -
- Bidirectional Channels:
- 1
- 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)
SMA6J10CA-TR FAQ
1.How can I place an order for SMA6J10CA-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J10CA-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 SMA6J10CA-TR reliable?
The price and inventory of SMA6J10CA-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J10CA-TR is usually 5 days.
3.What payment methods are accepted for SMA6J10CA-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J10CA-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J10CA-TR?
SMA6J10CA-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J10CA-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 SMA6J10CA-TR?
For technical support, including SMA6J10CA-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J10CA-TR requirements.
6.How does Aetrix verify that SMA6J10CA-TR is sourced from the original manufacturer or authorized distributors?
All SMA6J10CA-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 SMA6J10CA-TR meets industry standards.
7.What is the process for return or replacement of SMA6J10CA-TR?
All SMA6J10CA-TR units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J10CA-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 SMA6J10CA-TR part is unused and in its original packaging.
Return procedure for SMA6J10CA-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6J10CA-TR Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
