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Taiwan Semiconductor Corporation 1.5SMC160A
- Part No.:
- 1.5SMC160A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC160A.pdf
- Description:
- 1500W, 160V, 5%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:3,827
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Product details
Overview
1.5SMC160A from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, rated for 1500W peak pulse power, 136V working stand-off voltage (VWM), and 219V maximum clamping voltage (VC) at 7.1A peak impulse current. It protects DC power rails and signal lines in industrial power supplies and telecom interfaces against ESD and lightning-induced transients.
For engineers reviewing the 1.5SMC160A datasheet, 1.5SMC160A pinout, 1.5SMC160A application, or 1.5SMC160A equivalent, this page delivers verified electrical specs, thermal resistance data, clamping behavior under 10/1000μs surge, polarity marking guidance, and direct alternatives with documented VBR, VC, and IPPM differences.
Technical Context
The 1.5SMC160A uses a glass-passivated silicon junction to achieve fast response (<1.0ps) and low leakage (<1μA at 136V). Its unidirectional configuration provides asymmetric protection-forward conduction only during reverse overvoltage events-making it suitable for DC-biased lines where polarity is fixed.
Thermal performance is defined by RθJA = 50°C/W and RθJC = 15°C/W, enabling reliable operation up to TJ = +150°C. It meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive load-dump immunity and complies with J-STD-020 moisture sensitivity level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 136 V - Maximum continuous reverse operating voltage before clamping begins; sets safe DC bias margin for protected line. |
| VBR min/max | 152 / 168 V @ 1 mA - Breakdown occurs within this band; ensures predictable turn-on above VWM with 16V design margin. |
| VC @ IPPM | 219 V @ 7.1 A - Clamped voltage during 10/1000μs surge; defines worst-case overvoltage seen by downstream ICs. |
| PPK | 1500 W - Peak pulse power handling per single transient; supports high-energy surges without failure. |
| IR @ VWM | <1 μA - Ultra-low leakage at rated stand-off voltage; avoids parasitic loading on sensitive analog or low-power circuits. |
| TJ max | +150 °C - Maximum junction temperature; enables use in enclosed industrial enclosures without forced cooling. |
| RθJA | 50 °C/W - Junction-to-ambient thermal resistance; informs PCB copper area requirements for thermal management. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, matte tin-plated leads, cathode indicated by molded band. Weight: 0.210 g. Meets UL 94V-0 flammability rating and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential rail; conducts during reverse-transient clamping. |
| Cathode | Protected line connection | Connected to line being protected (e.g., 136V DC bus); blocks normal operation, avalanches during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable breakdown characteristics and long-term reliability under repeated surge stress. |
| Clamping time <1.0 ps | Responds faster than most microcontrollers and communication ICs can be damaged, minimizing transient energy transfer. |
| ISO 7637-2 compliance | Validated for automotive load-dump and coupled transient immunity (Pulse 1/2a/2b/3a/3b), supporting industrial vehicle electronics. |
| J-STD-020 Level 1 MSL | Allows unlimited floor life and standard reflow without baking, simplifying SMT manufacturing flow. |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU RoHS Directive, enabling use in environmentally regulated consumer and telecom equipment. |
Applications
| Industrial Power Supply Input | Telecom Line Card Protection |
|---|---|
|
Use Scenario: 136V DC input stage of DIN-rail power supply exposed to lightning-induced surges on AC mains or DC distribution lines. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between input rail and chassis ground to clamp transients before they reach upstream rectifier and downstream DC-DC controller. Use Value: Limits voltage excursion to ≤219V during 7.1A 10/1000μs surge, preserving 200V-rated electrolytic capacitors and MOSFETs. |
Use Scenario: Protection of -48V telecom battery feed lines in central office line cards subject to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Standoff-clamp device connected cathode-to-line, anode-to-ground, suppressing common-mode transients while maintaining low leakage at nominal -48V. Use Value: With VWM = 136V, safely withstands double-battery float voltage (+/-96V) while clamping surges to 219V, protecting SLIC and codec ICs. |
| Motor Drive DC Bus | Renewable Energy Inverter DC Link |
|
Use Scenario: 136V DC link in brushless motor drive where IGBT switching induces repetitive voltage spikes exceeding 150V. IC Role / Device Role / Timing Role: Transient shunt placed across DC bus to absorb commutation spikes and prevent overvoltage shutdown of gate drivers. Use Value: 1500W PPK rating handles short-duration spikes without degradation; 1μA IR avoids unnecessary power loss in high-efficiency drives. |
Use Scenario: DC link protection in solar string inverters where PV array open-circuit voltage reaches 136V and lightning coupling introduces kV-level transients. IC Role / Device Role / Timing Role: Primary clamping element on DC input, coordinated with MOVs and filters to meet IEC 61000-4-5 Level 4 immunity. Use Value: 219V clamping voltage ensures SiC MOSFETs with 650V rating retain >200V margin during worst-case surge, improving system robustness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160A (Bourns) | VWM = 136V, VC = 221V @ 6.8A, PPK = 600W, SMB package (smaller footprint, lower thermal mass) | Limited to lower-energy surges; unsuitable for ISO 7637-2 Pulse 5a (load dump) due to 600W rating | Select when board space is constrained and surge energy remains below 600W; verify RθJA derating for ambient >70°C. |
| 1.5KE160A (ON Semiconductor) | VWM = 136V, VC = 224V @ 6.7A, PPK = 1500W, DO-201AD through-hole package | Requires wave soldering or hand assembly; incompatible with automated SMT lines; higher mounting inductance reduces high-frequency clamping efficacy | Choose only for legacy through-hole designs or prototyping where rework tolerance outweighs production efficiency and RF performance. |
Compared with 1.5SMC160A, SMBJ160A trades surge capacity for compactness, while 1.5KE160A retains full power rating but sacrifices SMT compatibility and high-frequency response-making 1.5SMC160A optimal for automated, high-reliability industrial SMT assemblies requiring full 1500W immunity.
Availability
1.5SMC160A is available at Aetrix Electronics and suitable for industrial power supplies, telecom line cards, motor drive DC buses, and renewable energy inverters requiring stable component supply and full compliance with ISO 7637-2 and RoHS.
Supply support for 1.5SMC160A 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs, with ISO 9001 and IATF 16949 certification.
The 1.5SMC series was designed for high-reliability surface-mount transient suppression in harsh environments-including industrial automation, telecom infrastructure, and automotive subsystems-emphasizing robust clamping, low leakage, and automated assembly compatibility.
FAQ
What is the polarity configuration of the 1.5SMC160A?
The 1.5SMC160A is a unidirectional TVS diode, with cathode marked by a molded band on the DO-214AB package. It blocks voltage up to 136V in reverse bias and avalanches only when reverse voltage exceeds 152–168V. Forward conduction (anode-to-cathode) occurs at ~3.5V per datasheet, but forward operation is not its intended protection mode. This polarity must be observed during PCB layout to ensure correct clamping direction.
How does the 1.5SMC160A compare to bidirectional variants like 1.5SMC160CA?
The 1.5SMC160A differs from 1.5SMC160CA in polarity and clamping symmetry: 1.5SMC160A is unidirectional (clamps only on reverse overvoltage), while 1.5SMC160CA clamps identically in both directions with VWM = 136V and VC ≈ 219V in either polarity. Use 1.5SMC160A for DC-biased lines (e.g., +136V rail to ground); choose 1.5SMC160CA only for AC or floating differential signals where polarity reversal is possible.
What is the maximum surge current the 1.5SMC160A can handle without degradation?
The 1.5SMC160A is rated for a maximum peak impulse current (IPPM) of 7.1 A under the standardized 10/1000μs waveform (per Fig.5). This corresponds to its 1500W peak pulse power rating at 25°C ambient. Derating applies above 25°C per Fig.2: at 85°C ambient, IPPM drops to ~4.8 A. Repeated surges above rated IPPM or outside the specified waveform may cause parametric shift or catastrophic failure.
Does the 1.5SMC160A meet automotive transient immunity standards?
Yes, the 1.5SMC160A meets ISO 7637-2 Pulse 1 (inductive load disconnect), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling), as explicitly stated in its features list. Its 1500W rating and 219V clamping support compliance with Level III/IV test profiles when properly mounted with low-inductance grounding. It is not qualified for Pulse 5a (load dump) which requires >3000W capability.
What is the thermal resistance and how does it affect PCB layout for the 1.5SMC160A?
The 1.5SMC160A has RθJA = 50°C/W and RθJC = 15°C/W. To maintain TJ ≤ 150°C at full 1500W surge, the PCB must dissipate heat effectively-typically via ≥100 mm² of 2-oz copper connected to both terminals. Minimizing trace length and using thermal vias under the cathode/anode pads reduces effective RθJA. Layouts ignoring thermal design risk junction overheating and premature wear-out after repeated surges.
1.5SMC160A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 136V
- Voltage - Breakdown (Min):
- 152V
- Voltage - Clamping (Max) @ Ipp:
- 219V
- Current - Peak Pulse (10/1000µs):
- 7.1A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC160A FAQ
1.How can I place an order for 1.5SMC160A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC160A 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 1.5SMC160A reliable?
The price and inventory of 1.5SMC160A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC160A is usually 5 days.
3.What payment methods are accepted for 1.5SMC160A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC160A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC160A?
1.5SMC160A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC160A 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 1.5SMC160A?
For technical support, including 1.5SMC160A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC160A requirements.
6.How does Aetrix verify that 1.5SMC160A is sourced from the original manufacturer or authorized distributors?
All 1.5SMC160A 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 1.5SMC160A meets industry standards.
7.What is the process for return or replacement of 1.5SMC160A?
All 1.5SMC160A units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC160A, 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 1.5SMC160A part is unused and in its original packaging.
Return procedure for 1.5SMC160A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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