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Taiwan Semiconductor Corporation SMCJ160
- Part No.:
- SMCJ160
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ160.pdf
- Description:
- 1500W, 198V, 10%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
SMCJ160 from Taiwan Semiconductor is a unidirectional 1500W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 160V working stand-off voltage (VWM), 178–218V breakdown voltage (VBR), and 287V maximum clamping voltage (VC) at 5.4A peak impulse current. It protects power rails and I/O lines in automotive lighting and industrial control systems against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the SMCJ160 datasheet, SMCJ160 pinout, SMCJ160 application, or SMCJ160 equivalent, this page delivers verified electrical parameters, thermal performance data, clamping behavior under 10/1000μs surge, polarity marking guidance, and direct alternatives for ESD and inductive switching protection design.
Technical Context
The SMCJ160 operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its VBR range (178–218V @ IT = 1mA). Its glass-passivated junction enables sub-1ps response time and <1μA leakage above 10V, meeting stringent automotive immunity standards including ISO 7637-2 Pulse 1 (inductive load dump suppression) and Pulse 2b (battery disconnect transient).
Thermally, it features RθJA = 55°C/W and RθJC = 10°C/W, enabling reliable operation up to TJ = 150°C. The DO-214AB (SMC) package supports automated placement and complies with J-STD-020 Level 1 moisture sensitivity and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 160 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 178 V / 218 V @ IT = 1 mA - Confirmed avalanche onset range for robust overvoltage thresholding |
| VC @ IPPM | 287 V @ 5.4 A - Clamped voltage during 10/1000μs surge, limiting downstream stress |
| PPK | 1500 W - Peak pulse power handling per single non-repetitive 1ms event |
| IR @ VWM | <1 μA - Negligible leakage at rated stand-off, preserving low-power system integrity |
| TJ max | +150 °C - Maximum junction temperature supporting under-hood and industrial ambient operation |
| RθJA | 55 °C/W - Thermal resistance defining PCB copper area requirements for sustained power dissipation |
Pinout & Package
DO-214AB (SMC) surface-mount package with cathode band marking on one end; matte tin-plated leads compliant with J-STD-002 solderability; polarity-sensitive unidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional TVS configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 160V rail); clamps to anode when transient exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| ISO 7637-2 compliance | Validated for Pulse 1 (load dump), Pulse 2a/2b (supply interruption), and Pulse 3a/3b (line transients) in automotive ECUs |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| Sub-1 ps response time | Clamps transients before sensitive ICs experience overstress-critical for CAN/LIN bus and sensor interface protection |
| UL 94V-0 molding compound | Self-extinguishing encapsulation meets flame-retardancy requirements for enclosed industrial enclosures |
| J-STD-020 Level 1 MSL | Zero bake requirement prior to reflow, enabling direct placement without moisture preconditioning |
Applications
| Automotive Lighting Systems | Industrial PLC I/O Protection |
|---|---|
Use Scenario: LED headlamp driver subjected to battery load dump (ISO 7637-2 Pulse 1) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 160V supply rail and ground to clamp surges before they reach DC/DC controller and LED driver ICs. Use Value: Limits transient voltage to ≤287V, preventing gate oxide rupture in MOSFET drivers and latch-up in analog front-ends. | Use Scenario: Digital input module exposed to inductive kickback from solenoid valves and relay coils. IC Role / Device Role / Timing Role: SMCJ160 installed across input terminals to absorb 10/1000μs switching transients before reaching optocoupler or microcontroller GPIO. Use Value: Withstands 5.4A peak impulse current while holding clamped voltage below 287V, ensuring signal integrity and logic-level compatibility. |
| Power Supply Input Stage | Telecom Power Feeds |
Use Scenario: Front-end protection of 160V DC telecom rectifier output feeding PoE+ PSE controllers. IC Role / Device Role / Timing Role: Primary surge clamp on DC bus, coordinated with upstream fuses and downstream π-filters to meet IEC 61000-4-5 Level 4. Use Value: 1500W peak power rating sustains multiple surge events without degradation, maintaining VWM stability over 1000+ cycles. | Use Scenario: Overvoltage protection on -48V DC backup feed lines in base station power distribution units. IC Role / Device Role / Timing Role: Bidirectional protection not applicable; SMCJ160 used in unidirectional configuration on positive rail referenced to chassis ground. Use Value: Low IR (<1μA) prevents standby current drain, critical for battery-backed telecom infrastructure with multi-year uptime requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ160A | Same DO-214AC (SMA) package; 160V VWM, 287V VC @ 5.4A, but lower PPK = 400W | Lower power rating limits use to low-energy transients; unsuitable for ISO 7637-2 Pulse 1 | Select SMCJ160 where full 1500W surge capability and DO-214AB mechanical robustness are required |
| ON Semiconductor 1.5SMC160A | Identical DO-214AB package, 160V VWM, 287V VC @ 5.4A, 1500W PPK, but VF = 5.0V @ 100A (forward conduction) | Same clamping performance; differs only in forward voltage spec-irrelevant for reverse-biased TVS use | Drop-in alternative if sourcing flexibility is needed; identical protection profile and layout compatibility |
Compared with SMAJ160A, SMCJ160 delivers 275% higher surge power handling for automotive load-dump immunity; versus 1.5SMC160A, it offers identical clamping and thermal specs with proven Taiwan Semiconductor process consistency across high-volume production lots.
Availability
SMCJ160 is available at Aetrix Electronics and suitable for automotive lighting systems, industrial PLC I/O modules, telecom power feeds, and DC power supply input stages requiring stable component supply and full ISO 7637-2 compliance.
Supply support for SMCJ160 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 Taiwanese manufacturer specializing in discrete power semiconductors, TVS diodes, and rectifiers for automotive, industrial, and consumer markets.
The SMCJ series was designed specifically for high-energy transient suppression in harsh environments-emphasizing robust clamping, low leakage, and AEC-Q101 readiness for under-hood and factory-floor deployment.
FAQ
What is the clamping voltage of SMCJ160 and how is it measured?
The SMCJ160 has a maximum clamping voltage (VC) of 287 V, measured at a peak impulse current (IPPM) of 5.4 A using the standardized 10/1000 μs double-exponential surge waveform per Fig.5 in the datasheet. This value ensures predictable overvoltage limiting during real-world transients like ISO 7637-2 Pulse 1, and is guaranteed across the full operating temperature range.
Is SMCJ160 unidirectional or bidirectional, and how is polarity identified?
SMCJ160 is a unidirectional TVS diode, indicated by the absence of "C" or "CA" suffix. Polarity is marked by a cathode band on the DO-214AB (SMC) package body-this end connects to the protected line, while the anode connects to ground or the lower-potential reference. Bidirectional variants (e.g., SMCJ160CA) require explicit ordering.
Does SMCJ160 meet automotive transient immunity standards?
Yes, SMCJ160 meets ISO 7637-2 for Pulses 1, 2a, 2b, 3a, and 3b-covering load dump, supply disconnection, and coupled line transients. Its 1500W peak power rating, fast sub-1ps response, and specified clamping behavior make it suitable for ECU, lighting, and body-control module protection per OEM requirements.
What is the maximum junction temperature and thermal resistance of SMCJ160?
The SMCJ160 has a maximum junction temperature (TJ) of +150°C and thermal resistances of RθJA = 55°C/W (junction-to-ambient) and RθJC = 10°C/W (junction-to-case). These values define PCB copper area and heatsinking needs for sustained surge duty cycles in enclosed or high-ambient environments.
How does SMCJ160 compare to SMCJ160A in terms of breakdown voltage and clamping performance?
SMCJ160 has a VBR range of 178–218 V and clamps at 287 V, while SMCJ160A has tighter VBR (178–197 V) and lower clamping voltage (259 V). The "A" suffix denotes enhanced VBR tolerance and improved clamping consistency-making SMCJ160A preferable where tighter voltage control is critical, though both share identical VWM, package, and surge rating.
SMCJ160 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 160V
- Voltage - Breakdown (Min):
- 178V
- Voltage - Clamping (Max) @ Ipp:
- 287V
- Current - Peak Pulse (10/1000µs):
- 5.4A
- 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)
SMCJ160 FAQ
1.How can I place an order for SMCJ160 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ160 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 SMCJ160 reliable?
The price and inventory of SMCJ160 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ160 is usually 5 days.
3.What payment methods are accepted for SMCJ160?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ160 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ160?
SMCJ160 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ160 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 SMCJ160?
For technical support, including SMCJ160 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ160 requirements.
6.How does Aetrix verify that SMCJ160 is sourced from the original manufacturer or authorized distributors?
All SMCJ160 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 SMCJ160 meets industry standards.
7.What is the process for return or replacement of SMCJ160?
All SMCJ160 units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ160, 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 SMCJ160 part is unused and in its original packaging.
Return procedure for SMCJ160:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ160 Tags
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