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STMicroelectronics SMCJ5.0CA-TR
- Part No.:
- SMCJ5.0CA-TR
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ5.0CA-TR.pdf
- Description:
- TVS DIODE 5VWM 13.4VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:3,764
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Product details
Overview
SMCJ5.0CA-TR from STMicroelectronics is a bidirectional 5.0 V transient voltage suppression (TVS) diode in SMC package, designed for IEC 61000-4-2 ESD protection (30 kV air/contact) and IEC 61000-4-4 surge immunity (4 kV level 4). It delivers 1500 W peak pulse power (10/1000 µs), clamps to 9.2 V at 171 A, and maintains ≤0.2 µA leakage at 25 °C - deployed in industrial power supplies, automotive body control modules, and PoE-powered Ethernet interfaces.
For engineers reviewing the SMCJ5.0CA-TR datasheet, SMCJ5.0CA-TR pinout, SMCJ5.0CA-TR application, or SMCJ5.0CA-TR equivalent, this page provides verified electrical characteristics, thermal derating curves, JEDEC-compliant SMC package dimensions, and validated alternatives for bidirectional low-voltage surge protection in high-reliability DC rails.
Technical Context
This TVS diode uses planar silicon junction technology optimized for low leakage and stable clamping across -55 °C to +150 °C junction temperature. Its bidirectional architecture enables symmetrical surge suppression on AC-coupled or floating signal lines without polarity constraints.
Clamping voltage (VCL) is specified at 9.2 V (max) for 171 A (10/1000 µs), with dynamic resistance of 0.012 Ω - enabling fast response to transients while minimizing voltage overshoot during high-current surges. Temperature coefficient αT = 10⁻⁴/°C ensures predictable VBR and VCL drift over operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 5.0 V - maximum continuous reverse working voltage before breakdown; sets minimum system rail margin for reliable DC operation. |
| Breakdown Voltage (VBR) | 6.4–6.74 V at 1 mA - precise Zener-like threshold ensuring early conduction before downstream IC damage. |
| Clamping Voltage (VCL) | 9.2 V max at 171 A (10/1000 µs) - defines worst-case voltage seen by protected circuit during surge event. |
| Peak Pulse Power (PPP) | 1500 W (10/1000 µs) - sustained energy-handling capability under standard lightning-surge waveform. |
| Leakage Current (IR) | ≤0.2 µA at 25 °C - negligible standby current draw critical for battery-powered or low-power sensor nodes. |
| Junction Temp Range (Tj) | -55 °C to +150 °C - supports operation in under-hood automotive, industrial motor drives, and enclosed power converters. |
| ESD Rating | ±30 kV contact & air discharge per IEC 61000-4-2 - exceeds Level 4 for robust handling in manufacturing and field environments. |
Pinout & Package
The SMCJ5.0CA-TR is housed in a JEDEC-standard SMC (DO-214AB) surface-mount package with matte tin-plated leads, footprint-compatible with IPC-7531 guidelines. Thermal resistance is minimized via copper pad recommendations (Rth(j-a) = ~100 °C/W on 3.14 cm² Cu per lead).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Marked Band) | Surge Return Path (Bidirectional) | Functions as common terminal for both polarities; connects to ground or reference plane to shunt transients symmetrically. |
| Anode | Surge Return Path (Bidirectional) | Paired with cathode to form bidirectional clamp; no polarity dependency - suitable for AC lines or floating buses. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Surge Clamping | Enables single-device protection on AC-coupled or differential signal paths without external polarity logic. |
| Low Dynamic Resistance (0.012 Ω) | Reduces clamping voltage rise under high di/dt events, preserving margin for 3.3 V/5 V logic interfaces. |
| High-Temperature Stability (Tj max = 150 °C) | Supports placement near heat-generating components (e.g., MOSFETs, inductors) without derating loss. |
| UL94 V0 & J-STD-020 MSL Level 1 | Ensures flame-retardant housing and unlimited floor life for automated assembly without baking. |
| IEC 61000-4-4 Level 4 Compliance | Validated for 4 kV surge immunity in industrial control cabinets and building automation systems. |
Applications
| Industrial Power Supply Input | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: 12 V DC input rail exposed to load-dump and jump-start transients in factory automation PLCs. IC Role / Device Role / Timing Role: Primary surge shunt device placed upstream of DC-DC converter input stage. Use Value: Clamps 171 A surge to ≤9.2 V, preventing overvoltage failure of 16 V-rated input capacitors and controller ICs. |
Use Scenario: LIN bus transceiver power line subjected to ISO 7637-2 pulse 1/2a/5a in door module ECUs. IC Role / Device Role / Timing Role: Bidirectional rail protector between battery feed and local LDO regulator. Use Value: Withstands 1000 V/50 ms pulses while maintaining <0.2 µA leakage to avoid battery drain over 10-year service life. |
| PoE-Powered Ethernet Interface | Smart Sensor Node Power Input |
|
Use Scenario: 48 V DC input to IEEE 802.3af/at PD interface with integrated DC-DC conversion. IC Role / Device Role / Timing Role: Secondary surge limiter after primary MOV, absorbing residual fast transients. Use Value: 1500 W rating handles induced surges from nearby lightning strikes without thermal runaway at 150 °C ambient. |
Use Scenario: 3.3 V supply rail for wireless sensor node powered by energy harvesting or coin cell. IC Role / Device Role / Timing Role: Low-leakage overvoltage clamp protecting ultra-low-power microcontroller and RF transceiver. Use Value: 0.2 µA max leakage at 25 °C ensures >10-year shelf life and prevents premature battery depletion in remote deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0CA-TR | Lower PPP = 600 W (10/1000 µs); same VRWM/VCL; SMB package (smaller footprint, higher Rth). | Limited to lower-energy surges; unsuitable for IEC 61000-4-4 level 4 or automotive load dump. | Select when space-constrained PCB layout prioritizes size over 1500 W surge headroom. |
| 1.5KE5.0CA | Through-hole DO-201 package; PPP = 1500 W; higher leakage (5.0 µA); no MSL Level 1 rating. | Requires wave soldering; not compatible with reflow-only production; less suitable for high-volume SMT lines. | Choose only for legacy through-hole designs or where manual repair accessibility outweighs SMT efficiency. |
Compared with SMBJ5.0CA-TR and 1.5KE5.0CA, SMCJ5.0CA-TR uniquely balances 1500 W surge capacity, SMT manufacturability, MSL Level 1 reliability, and sub-microamp leakage - making it optimal for new industrial and automotive designs requiring full IEC/ISO compliance.
Availability
SMCJ5.0CA-TR is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, and PoE-powered Ethernet interfaces requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ5.0CA-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 automotive-grade ICs with vertical manufacturing control.
The SMCJ series belongs to ST's high-reliability TVS portfolio engineered specifically for industrial and automotive surge immunity - emphasizing low leakage, high Tj operation, and full IEC/ISO standard compliance.
FAQ
What is the difference between SMCJ5.0A-TR and SMCJ5.0CA-TR?
SMCJ5.0A-TR is unidirectional (anode-to-cathode conduction only), suited for DC rails with defined polarity; SMCJ5.0CA-TR is bidirectional, providing symmetrical clamping for AC signals, floating buses, or polarity-agnostic protection. Their VRWM, VCL, and PPP are identical, but CA version has dual-junction construction enabling ±VBR behavior.
Can SMCJ5.0CA-TR be used on a 3.3 V rail?
No - its 5.0 V stand-off voltage (VRWM) is too high for reliable 3.3 V operation; leakage increases exponentially below VRWM, and clamping may not activate before damage occurs. Use SMCJ3.3CA-TR (VRWM = 3.3 V) instead, which clamps at 6.2 V and maintains <1 µA leakage at 25 °C.
How does junction temperature affect clamping voltage?
VCL increases linearly with junction temperature at αT = 10⁻⁴/°C; at 125 °C, VCL rises ~1% above its 25 °C value (e.g., 9.2 V → ~9.29 V). This is accounted for in Figure 5's IPP vs. VCL curves and must be included in worst-case margin analysis for high-ambient designs.
Is SMCJ5.0CA-TR compliant with RoHS and REACH?
Yes - it carries ST's ECOPACK2 environmental grade certification, meeting RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Lead finish is matte tin, and packaging complies with J-STD-002 and JESD22-B102 E3 standards for solderability and whisker resistance.
SMCJ5.0CA-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-214AB, SMC
- Series:
- SMCJ, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- Current - Peak Pulse (10/1000µs):
- 746A (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
SMCJ5.0CA-TR FAQ
1.How can I place an order for SMCJ5.0CA-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ5.0CA-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 SMCJ5.0CA-TR reliable?
The price and inventory of SMCJ5.0CA-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ5.0CA-TR is usually 5 days.
3.What payment methods are accepted for SMCJ5.0CA-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ5.0CA-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ5.0CA-TR?
SMCJ5.0CA-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ5.0CA-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 SMCJ5.0CA-TR?
For technical support, including SMCJ5.0CA-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ5.0CA-TR requirements.
6.How does Aetrix verify that SMCJ5.0CA-TR is sourced from the original manufacturer or authorized distributors?
All SMCJ5.0CA-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 SMCJ5.0CA-TR meets industry standards.
7.What is the process for return or replacement of SMCJ5.0CA-TR?
All SMCJ5.0CA-TR units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ5.0CA-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 SMCJ5.0CA-TR part is unused and in its original packaging.
Return procedure for SMCJ5.0CA-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ5.0CA-TR Tags
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