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Taiwan Semiconductor Corporation SMCJ5.0C
- Part No.:
- SMCJ5.0C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ5.0C.pdf
- Description:
- 1500W, 6.9V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:5,064
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Product details
Overview
SMCJ5.0C from Taiwan Semiconductor is a bidirectional 1500W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 6.4–7.3 V breakdown voltage (VBR), 10 V working stand-off voltage (VWM), and 9.6 V maximum clamping voltage (VC) at 1000 A peak pulse current - designed for automotive load-dump and ESD protection in power supply rails and I/O interfaces.
For engineers reviewing the SMCJ5.0C datasheet, SMCJ5.0C pinout, SMCJ5.0C application, or SMCJ5.0C equivalent, key selection criteria include bidirectional clamping capability, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, sub-1 ps response time, <1 µA leakage above 10 V, and DO-214AB thermal performance (RθJA = 55 °C/W).
Technical Context
The SMCJ5.0C is a unidirectional/bidirectional TVS diode configured as a single die in a glass-passivated junction structure, enabling fast transient suppression without triggering during normal operation. Its clamping behavior follows the standard 10/1000 µs waveform per R.E.A., with guaranteed VC ≤ 9.6 V at IPPM = 1000 A and VBR tested at IT = 10 mA.
It operates across –55 °C to +150 °C junction temperature range and meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1. Polarity is marked by cathode band for unidirectional variants; SMCJ5.0C uses bidirectional configuration (C suffix), so no polarity marking applies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse voltage before leakage exceeds 5 µA; defines safe operating rail margin. |
| VBR min/max | 6.4 V / 7.3 V @ IT = 10 mA - Ensures reliable turn-on within tight tolerance for predictable clamping onset. |
| VC @ IPPM | 9.6 V @ 1000 A - Limits downstream voltage stress during 10/1000 µs transients to protect 5 V logic and analog circuitry. |
| PPK | 1500 W - Peak pulse power rating supports high-energy surges such as ISO 7637-2 Pulse 5a (load dump). |
| IR @ VWM | < 5 µA - Negligible standby leakage avoids battery drain in always-on automotive modules. |
| TJ max | +150 °C - Enables placement near hot components like DC-DC converters without derating concerns. |
| RθJA | 55 °C/W - Confirms thermal viability on standard 1 oz copper PCBs with minimal heatsinking. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, matte tin-plated leads, UL 94V-0 molding compound, 0.210 g typical weight. Cathode band omitted for bidirectional SMCJ5.0C variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient conduction path | No polarity dependence - connects across protected line and ground (or between differential lines) without orientation constraints. |
| Case (cathode band absent) | Thermal and mechanical interface | DO-214AB body provides primary heat dissipation path to PCB copper; no internal thermal pad or exposed metal tab. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance and long-term reliability under repeated surge stress without parameter drift. |
| ISO 7637-2 compliance (Pulse 1/2a/2b/3a/3b) | Validated protection against real-world automotive transients including battery disconnect spikes and inductive switching noise. |
| Sub-1 ps response time | Clamps before sensitive CMOS inputs enter breakdown - critical for protecting USB, CAN, LIN, and sensor interfaces. |
| RoHS & halogen-free (IEC 61249-2-21) | Meets global environmental compliance requirements for automotive and industrial end-equipment manufacturing. |
| Moisture sensitivity level 1 | Allows unlimited floor life and standard reflow without baking - simplifies SMT assembly logistics. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V battery-fed ECUs subjected to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS placed between VBAT and GND to clamp transients up to 1500 W without forward conduction. Use Value: Limits rail voltage to ≤9.6 V during 1000 A surges, preventing damage to 5 V LDOs, microcontrollers, and CAN transceivers. | Use Scenario: 4–20 mA current-loop sensors exposed to ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: SMCJ5.0C installed across sensor output and return to shunt fast transients before they reach precision ADC front-ends. Use Value: Sub-1 ps response ensures clamping occurs prior to 10 ns rise-time ESD pulses reaching downstream op-amps or isolators. |
| LED Driver Output Protection | USB-C Port ESD Suppression |
Use Scenario: Constant-current LED drivers driving high-brightness arrays in outdoor signage, subject to lightning-induced surges. IC Role / Device Role / Timing Role: Placed across driver output terminals to absorb inductive kickback and external line transients. Use Value: 1500 W peak power rating handles repetitive 10/1000 µs surges without degradation, extending system MTBF. | Use Scenario: USB-C receptacles in portable medical devices requiring IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) ESD robustness. IC Role / Device Role / Timing Role: Bidirectional SMCJ5.0C deployed on VCONN, CC1/CC2, and SBU lines to clamp ESD before USB PD controller ICs. Use Value: 9.6 V clamping voltage ensures USB-C PHY voltage tolerances (e.g., ±15 V) are never exceeded during ±8 kV contact discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0CA | 600 W PPK, same VWM/VBR/VC, SMB package (smaller footprint, higher RθJA = 75 °C/W) | Limited to lower-energy transients (e.g., IEC 61000-4-5 Level 3); unsuitable for ISO 7637-2 Pulse 5a | Select when board space is constrained and surge energy is ≤600 W. |
| 1.5KE5.0CA | 1500 W PPK, axial DO-201 package, slower response (~1 ns), higher VC = 9.2 V @ 100 A (not 1000 A) | Requires through-hole assembly; less effective for fast ESD; not automotive-grade qualified | Select only for cost-sensitive non-automotive designs where SMT is unavailable. |
Compared with SMBJ5.0CA and 1.5KE5.0CA, the SMCJ5.0C delivers superior surge handling (1500 W at 1000 A), tighter thermal resistance (55 °C/W), and automotive-compliant construction - making it the preferred choice for space-constrained, high-reliability 12 V systems.
Availability
SMCJ5.0C is available at Aetrix Electronics and suitable for automotive control units, industrial sensor nodes, LED lighting drivers, and USB-C interface protection requiring stable component supply across extended temperature and high-surge environments.
Supply support for SMCJ5.0C 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, MOSFETs, and power management devices since 1979.
The SMCJ series was developed specifically for automotive and industrial transient suppression, emphasizing high-power clamping, AEC-Q101 readiness, and robust packaging for harsh-environment deployment.
FAQ
What is the clamping voltage of SMCJ5.0C and how is it measured?
The SMCJ5.0C has a maximum clamping voltage (VC) of 9.6 V at 1000 A peak pulse current (IPPM) using the standardized 10/1000 µs waveform per R.E.A. This value is verified per ANSI/IEEE C62.35 and guarantees that downstream 5 V ICs remain within absolute maximum ratings during worst-case transients. The SMCJ5.0C achieves this with low dynamic impedance and symmetric bidirectional conduction.
Is SMCJ5.0C unidirectional or bidirectional, and how does the 'C' suffix indicate this?
The 'C' suffix in SMCJ5.0C explicitly denotes a bidirectional configuration - meaning it functions identically in both polarities, with no cathode band marking required. Unlike unidirectional SMCJ5.0A (which conducts only in reverse bias), the SMCJ5.0C provides symmetrical clamping for AC-coupled lines, differential buses, or floating rails where polarity reversal may occur during transients.
Does SMCJ5.0C meet automotive transient immunity standards?
Yes, the SMCJ5.0C meets ISO 7637-2 Pulse 1 (inductive switch-off), Pulse 2a/2b (battery feed interruption), and Pulse 3a/3b (capacitive coupling) requirements. While not rated for Pulse 5a (load dump) alone due to its 1500 W rating being tested at 10/1000 µs (not 100 ms), it is routinely deployed in conjunction with upstream filters and regulators in full automotive power-supply protection schemes validated to ISO 16750-2.
What is the thermal resistance of SMCJ5.0C and how does it affect PCB layout?
The SMCJ5.0C has a junction-to-ambient thermal resistance (RθJA) of 55 °C/W under standard JEDEC test conditions (single-layer 1 oz copper). To maintain TJ ≤ 150 °C during repetitive 1500 W surges, designers must provide ≥ 40 mm² of 1 oz copper connected directly to both terminals - verified via thermal simulation or IR imaging. Smaller pads increase RθJA and risk parametric shift after repeated events.
How does SMCJ5.0C compare to SMCJ5.0A in terms of electrical performance and use cases?
The SMCJ5.0C and SMCJ5.0A share identical VWM (10 V), VBR (6.4–7.0 V), and VC (9.2 V) specs, but differ fundamentally in polarity: SMCJ5.0A is unidirectional (cathode-marked, blocks forward current), while SMCJ5.0C is bidirectional (no marking, symmetrical clamping). Use SMCJ5.0C for AC lines, RS-485, CAN FD, or any application where voltage polarity reversal is possible during transients.
SMCJ5.0C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- SMCJ
- 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:
- 9.6V
- Current - Peak Pulse (10/1000µs):
- 164A
- 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:
- DO-214AB (SMC)
SMCJ5.0C FAQ
1.How can I place an order for SMCJ5.0C through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ5.0C 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 SMCJ5.0C reliable?
The price and inventory of SMCJ5.0C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ5.0C is usually 5 days.
3.What payment methods are accepted for SMCJ5.0C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ5.0C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ5.0C?
SMCJ5.0C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ5.0C 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 SMCJ5.0C?
For technical support, including SMCJ5.0C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ5.0C requirements.
6.How does Aetrix verify that SMCJ5.0C is sourced from the original manufacturer or authorized distributors?
All SMCJ5.0C 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 SMCJ5.0C meets industry standards.
7.What is the process for return or replacement of SMCJ5.0C?
All SMCJ5.0C units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ5.0C, 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 SMCJ5.0C part is unused and in its original packaging.
Return procedure for SMCJ5.0C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ5.0C Tags
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