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STMicroelectronics SMCJ10CA-TR
- Part No.:
- SMCJ10CA-TR
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ10CA-TR.pdf
- Description:
- TVS DIODE 10VWM 21.7VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,240
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Product details
Overview
SMCJ10CA-TR from STMicroelectronics is a bidirectional 1500 W transient voltage suppression (TVS) diode in SMC package, designed for high-energy ESD and surge protection in DC power rails and signal lines. It features a standoff voltage (VRM) of 10 V, minimum breakdown voltage (VBR) of 11.1 V at 1 mA, clamping voltage (VCL) of 17 V at 92 A (10/1000 µs), maximum leakage current of 0.2 µA at 25 °C, and operates up to 150 °C junction temperature - deployed in industrial power supplies and automotive body control modules.
For engineers reviewing the SMCJ10CA-TR datasheet, SMCJ10CA-TR pinout, SMCJ10CA-TR application, or SMCJ10CA-TR equivalent, key selection criteria include bidirectional clamping behavior, low-leakage performance at elevated temperature, IEC 61000-4-2 ±30 kV contact/air discharge compliance, and thermal derating capability above 100 °C - critical for robust front-end protection in harsh-environment electronics.
Technical Context
The SMCJ10CA-TR employs planar silicon avalanche technology to deliver symmetrical clamping in both polarities, enabling protection of AC-coupled or floating signal paths without polarity constraints. Its dynamic resistance (RD) is 0.051 Ω at 25 °C, ensuring minimal voltage overshoot during fast transients like IEC 61000-4-4 level 4 (4 kV).
Thermal design is supported by a maximum junction temperature of 150 °C and defined thermal impedance curves showing Rth(j-a) dependence on copper area under each lead. The device maintains ≥1250 W peak pulse power capability even at Tj = 150 °C (10/1000 µs), validated per JEDEC JESD22-A108.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRM) | 10 V - Maximum continuous reverse working voltage before significant leakage; defines safe operating margin below breakdown. |
| Breakdown Voltage (VBR) | 11.1–11.7 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during overvoltage events. |
| Clamping Voltage (VCL) | 17 V at 92 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; enables downstream IC survival. |
| Peak Pulse Power (PPP) | 1500 W (10/1000 µs), up to 10 kW (8/20 µs) - Energy-handling capacity aligned with IEC 61000-4-4 and -4-5 surge standards. |
| Leakage Current (IRM) | 0.2 µA at VRM and 25 °C - Ultra-low standby loss critical for battery-powered or high-impedance sensor interfaces. |
| Junction Temperature Range | −55 to +150 °C - Supports operation in under-hood automotive, industrial motor drives, and outdoor power electronics. |
| ESD Robustness | ±30 kV contact & air discharge (IEC 61000-4-2 level 4) - Exceeds standard requirements for human-body-model immunity. |
Pinout & Package
SMCJ10CA-TR uses the industry-standard SMC (DO-214AB) surface-mount package: 7.75–8.15 mm length, 5.55–6.25 mm width, 2.45 mm max height, matte tin-plated leads compliant with J-STD-002 and RoHS. Thermal pad layout follows IPC7531 footprint recommendations with 3.14 mm pad spacing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Marked Band) | Anode/Cathode terminal (bidirectional) | Identifies cathode marking side; in bidirectional configuration, both terminals function identically as symmetrical clamping nodes. |
| Anode (Opposite Band) | Anode/Cathode terminal (bidirectional) | No functional distinction from cathode; device conducts equally in either direction once VCL threshold exceeded. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), or floating power domains without polarity concerns. |
| Low dynamic resistance (RD) | 0.051 Ω at 25 °C - Minimizes clamping voltage rise under high-current surges, improving protection margin for sensitive loads. |
| High-temperature stability | Rated for full 1500 W pulse power at 150 °C junction temperature - eliminates derating penalties in thermally constrained PCB layouts. |
| UL94 V0 epoxy housing | Meets flammability safety requirement for enclosed industrial and automotive enclosures without additional potting. |
| JEDEC-compliant SMC outline | Ensures mechanical compatibility with automated pick-and-place systems and reflow profiles per J-STD-020 MSL level 1. |
Applications
| Industrial Power Supply Input | Automotive Body Control Module |
|---|---|
|
Use Scenario: 24 V DC input rail exposed to load-dump and jump-start transients in factory automation controllers. IC Role / Device Role / Timing Role: Primary surge clamp placed upstream of DC-DC converters and microcontrollers to limit voltage excursions to ≤17 V. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic ICs during ISO 7637-2 pulse 5a (75 V/300 ms) events. |
Use Scenario: LIN bus line protection in door module ECUs subjected to ESD from human contact and cable coupling. IC Role / Device Role / Timing Role: Bidirectional TVS across LIN signal and ground to suppress ±30 kV ESD pulses without disrupting low-speed communication timing. Use Value: Maintains <1 µs response time and preserves signal integrity with <10 pF junction capacitance at 0 V bias. |
| Telecom PoE Interface | Renewable Energy Inverter DC Link |
|
Use Scenario: Protection of IEEE 802.3af/at Power over Ethernet (PoE) midspan injectors against lightning-induced surges on 48 V supply lines. IC Role / Device Role / Timing Role: Secondary-level TVS after primary gas discharge tube (GDT), absorbing residual 10/1000 µs energy up to 1500 W. Use Value: Limits clamped voltage to 17 V while sustaining 92 A peak current - compatible with PoE controller overvoltage thresholds. |
Use Scenario: DC link surge suppression in solar string inverters where PV array inputs face induced lightning surges. IC Role / Device Role / Timing Role: Parallel-connected TVS across DC bus capacitors to clamp transients exceeding 100 V without thermal runaway. Use Value: Operates reliably at 150 °C ambient with no derating - essential for sealed, convection-limited inverter enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA-TR | Lower PPP rating: 600 W (10/1000 µs); same VRM/VBR but higher VCL (19.9 V @ 48 A). | Targeted for space-constrained designs where 1500 W surge headroom is not required. | Select when board area is limited and peak surge energy remains below 600 W - SMCJ10CA-TR preferred for industrial-grade robustness. |
| 1.5KE10CA | Through-hole DO-201 package; identical electrical specs but higher thermal resistance and no MSL-1 reflow compatibility. | Suitable only for prototyping or legacy through-hole assembly; incompatible with modern SMT production lines. | Choose only for manual repair or non-automated builds; SMCJ10CA-TR offers superior manufacturability and thermal performance. |
Compared with SMBJ10CA-TR and 1.5KE10CA, SMCJ10CA-TR delivers 2.5× higher surge power handling in a reflow-compatible SMC package, enabling smaller footprints and higher reliability in automated manufacturing - critical for volume industrial and automotive deployments.
Availability
SMCJ10CA-TR is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, telecom PoE interfaces, and renewable energy inverters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMCJ10CA-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 innovative analog, power, and microcontroller solutions for industrial, automotive, and consumer markets.
The SMCJ series belongs to ST's high-power TVS portfolio, engineered specifically for IEC 61000-4-2/4-4/4-5-compliant front-end protection in mission-critical power and data interfaces where reliability at elevated temperature is mandatory.
FAQ
What is the difference between SMCJ10A-TR and SMCJ10CA-TR?
The "A" suffix denotes unidirectional TVS behavior (anode-to-cathode conduction only), while "CA" indicates bidirectional operation - symmetric clamping in both polarities. SMCJ10CA-TR has identical VBR, VCL, and PPP ratings but supports AC-coupled or floating signal protection where polarity reversal may occur, such as RS-485 or LIN bus lines.
Can SMCJ10CA-TR be used in parallel for higher surge current handling?
No - paralleling TVS diodes without matching VBR and dynamic resistance causes current imbalance and premature failure. For >92 A peak current, select a higher-rated part (e.g., SMCJ12CA-TR or SMCJ13CA-TR) or implement staged protection with GDT + TVS, as validated in ST's application note AN4274.
Does SMCJ10CA-TR meet AEC-Q200 for automotive use?
SMCJ10CA-TR is not AEC-Q200 qualified; it is rated for industrial and general automotive applications per IEC/ISO standards but lacks the extended temperature cycling, humidity bias, and vibration testing required for AEC-Q200 Grade 2 or 3. For qualified alternatives, consider ST's Automotive TVS family (e.g., SMAJ10CA-Q).
What is the recommended PCB footprint for optimal thermal performance?
ST specifies a minimum 3.14 mm pad spacing with ≥1 cm² total copper area per lead (per Figure 12). Use thermal vias under pads connected to internal ground planes to reduce Rth(j-a) by up to 40%, maintaining junction temperature below 150 °C during repeated 10/1000 µs surges at rated power.
SMCJ10CA-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-214AB, SMC
- Series:
- SMCJ, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 21.7V
- Current - Peak Pulse (10/1000µs):
- 461A (8/20µs)
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMC
SMCJ10CA-TR FAQ
1.How can I place an order for SMCJ10CA-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ10CA-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 SMCJ10CA-TR reliable?
The price and inventory of SMCJ10CA-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ10CA-TR is usually 5 days.
3.What payment methods are accepted for SMCJ10CA-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ10CA-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ10CA-TR?
SMCJ10CA-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ10CA-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 SMCJ10CA-TR?
For technical support, including SMCJ10CA-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ10CA-TR requirements.
6.How does Aetrix verify that SMCJ10CA-TR is sourced from the original manufacturer or authorized distributors?
All SMCJ10CA-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 SMCJ10CA-TR meets industry standards.
7.What is the process for return or replacement of SMCJ10CA-TR?
All SMCJ10CA-TR units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ10CA-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 SMCJ10CA-TR part is unused and in its original packaging.
Return procedure for SMCJ10CA-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ10CA-TR Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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