My Inquiry
My Account
Taiwan Semiconductor Corporation 1.5SMC180C
- Part No.:
- 1.5SMC180C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC180C.pdf
- Description:
- 1500W, 180V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:7,845
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5SMC180C from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode designed for high-energy surge protection in power rails and signal lines. It features a 180V working stand-off voltage (VWM), 198V maximum breakdown voltage (VBR), 1500W peak pulse power rating (PPK), and clamps transients to ≤258V at 6.1A peak impulse current - deployed in telecom line cards, industrial PLC I/O modules, and automotive body control units.
For engineers reviewing the 1.5SMC180C datasheet, 1.5SMC180C pinout, 1.5SMC180C application, or 1.5SMC180C equivalent, this page delivers verified electrical specs, DO-214AB package details, clamping behavior under ISO 7637-2 Pulse 1/2a/2b/3a/3b, thermal resistance data, and real-world ESD/surge immunity use cases - all confirmed against Taiwan Semiconductor's S2207 specification sheet.
Technical Context
The 1.5SMC180C operates as a bipolar (bidirectional) TVS diode with symmetrical clamping in both polarities, enabling single-device protection of AC-coupled or floating signal paths without polarity concerns. Its glass-passivated junction ensures stable VBR tolerance (±5% min–max spread: 162–198V) and low leakage (<1μA at 146V).
Thermally, it exhibits RθJA = 50°C/W and RθJC = 15°C/W, supporting sustained operation up to TJ = +150°C. The device meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1 - qualified for reflow soldering without baking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 146 V - maximum continuous DC or RMS voltage the device blocks without conduction; defines safe operating margin before clamping initiates |
| VBR @ IT=1mA | 162–198 V - measured breakdown range at 1mA test current; confirms bidirectional symmetry and tight manufacturing control |
| VC @ IPPM=6.1A | ≤258 V - clamped voltage during 10/1000μs surge; determines protected circuit's maximum transient overvoltage exposure |
| PPK | 1500 W - peak pulse power handling per 1ms waveform; enables robust immunity against lightning-induced surges (IEC 61000-4-5) |
| IR @ VWM | <1 μA - blocking leakage at rated stand-off voltage; ensures minimal power loss and signal integrity in high-impedance circuits |
| TJ max | +150 °C - maximum junction temperature; supports operation in under-hood automotive or enclosed industrial enclosures |
| Package | DO-214AB (SMC) - industry-standard surface-mount outline with 7.11 × 6.22 mm footprint and matte tin-plated leads compliant with J-STD-002 |
Pinout & Package
Package: DO-214AB (SMC), bidirectional configuration - no anode/cathode distinction; terminals are symmetrical and interchangeable. Cathode band marking is omitted per bidirectional design.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Bidirectional Surge Terminal A | Connects to protected line (e.g., RS-485 A, CAN_H, or AC power phase); conducts equally in either polarity during overvoltage |
| Terminal 2 | Bidirectional Surge Terminal B | Connects to reference node (e.g., RS-485 B, CAN_L, or AC neutral); completes symmetrical clamping path with Terminal 1 |
Key Features
| Feature | Design Value |
|---|---|
| ISO 7637-2 Compliance | Validated for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (ignition noise) - critical for automotive ECU front-end protection |
| Fast Response Time | <1.0 ps - enables clamping before sensitive downstream ICs (e.g., microcontrollers, transceivers) experience damaging voltage overshoot |
| RoHS & Halogen-Free | Compliant with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU - supports green manufacturing and end-of-life recycling requirements |
| Moisture Sensitivity | Level 1 per J-STD-020 - allows unlimited floor life and standard reflow without preconditioning or dry-pack handling |
| UL 94V-0 Molding | Flame-retardant epoxy compound - satisfies safety standards for industrial equipment enclosures and telecom infrastructure |
Applications
| Industrial PLC Analog Input Protection | Automotive LIN Bus Transient Suppression |
|---|---|
Use Scenario: Protects 4–20mA current-loop inputs in programmable logic controllers from induced surges due to nearby motor switching or relay contact bounce. IC Role / Device Role / Timing Role: Bidirectional TVS placed across input terminals to clamp common-mode transients before they reach precision ADC front-end and op-amp conditioning stages. Use Value: Limits voltage excursion to ≤258V during 1kV/500A surge events, preserving measurement accuracy and preventing latch-up in 24-bit sigma-delta converters. |
Use Scenario: Shields LIN transceivers in door module ECUs from battery line disturbances during jump-starts or alternator load dumps. IC Role / Device Role / Timing Role: Placed between LIN bus line and ground to absorb ISO 7637-2 Pulse 2a (100V/50Ω) and Pulse 5a (−100V/50Ω) transients. Use Value: Maintains LIN signal integrity by clamping within 1ns, ensuring bit error rate remains below 10⁻¹² during repeated surge stress testing. |
| Telecom DSL Line Card Surge Protection | AC-DC Power Supply Input Clamping |
Use Scenario: Guards ADSL/VDSL line interface transformers and POTS splitters against lightning-induced longitudinal surges on twisted-pair copper lines. IC Role / Device Role / Timing Role: Connected line-to-line (L1–L2) in bidirectional mode to suppress differential-mode surges exceeding 1kV per ITU-T K.20/K.21. Use Value: Absorbs 1500W peak energy without degradation, enabling compliance with GR-1089-CORE Level 3 surge immunity requirements. |
Use Scenario: Installed across bulk capacitor inputs of offline SMPS to suppress differential-mode surges from AC mains transients (e.g., capacitor bank switching). IC Role / Device Role / Timing Role: Positioned between live and neutral after EMI filter but before bridge rectifier to clamp fast-rising spikes before rectification. Use Value: Prevents overvoltage failure of 400V-rated electrolytic capacitors by limiting peak stress to ≤258V during 6kV ring-wave tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180CA (Bourns) | Same DO-214AA package (smaller than DO-214AB); 1500W rating but lower IPPM (5.8A vs. 6.1A); VC = 265V | Lower power density limits use in high-current surge environments; preferred where board space is constrained | Select SMBJ180CA only if PCB layout restricts SMC footprint and surge currents remain ≤5.5A |
| 1.5KE180CA (ON Semiconductor) | Through-hole DO-15 package; identical VWM/VBR/VC specs but higher RθJA (70°C/W); requires wave soldering | Not suitable for fully SMT production; used where mechanical robustness or serviceability outweighs automation needs | Choose 1.5KE180CA only for legacy through-hole designs or field-replaceable modules requiring hand-solder repair |
Compared with 1.5SMC180C, SMBJ180CA trades package size for slightly reduced surge current capacity, while 1.5KE180CA sacrifices SMT compatibility and thermal performance for mechanical ruggedness - making 1.5SMC180C optimal for automated, high-density, thermally demanding industrial and automotive PCBs.
Availability
1.5SMC180C is available at Aetrix Electronics and suitable for industrial PLC analog I/O protection, automotive LIN bus hardening, telecom DSL line card surge immunity, and AC-DC power supply input clamping requiring stable component supply and full traceability.
Supply support for 1.5SMC180C 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs - serving industrial, automotive, and telecom markets since 1979.
The 1.5SMC series was engineered specifically for high-reliability, high-power surface-mount surge suppression in harsh electromagnetic environments - emphasizing low clamping ratio, AEC-Q200 readiness, and process consistency across voltage grades.
FAQ
What is the polarity configuration of the 1.5SMC180C?
The 1.5SMC180C is a bidirectional TVS diode with symmetrical breakdown characteristics in both polarities - indicated by the "C" suffix per Taiwan Semiconductor's ordering convention. It has no cathode band marking and functions identically regardless of terminal orientation, making it ideal for AC-coupled or floating signal lines where polarity cannot be guaranteed.
Does the 1.5SMC180C meet automotive surge immunity standards?
Yes, the 1.5SMC180C meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements - validated per Taiwan Semiconductor's S2207 datasheet. Its 1500W peak power rating and ≤258V clamping voltage at 6.1A enable robust protection of LIN, CAN, and sensor interfaces in passenger vehicle ECUs and body control modules.
What is the maximum allowable ambient temperature for continuous operation of the 1.5SMC180C?
The 1.5SMC180C supports continuous operation up to +125°C ambient temperature when mounted on a standard FR-4 PCB with 1 in² copper pour, based on its RθJA = 50°C/W and TJ(max) = +150°C. Derating begins above 25°C per Figure 2 in the datasheet, with 80% power capability retained at +85°C ambient.
How does the 1.5SMC180C compare to unidirectional variants like 1.5SMC180A?
The 1.5SMC180C differs from 1.5SMC180A in polarity: "C" denotes bidirectional operation (symmetrical clamping), while "A" indicates unidirectional with cathode band. Electrically, 1.5SMC180C has identical VWM (146V), VBR (162–198V), and VC (≤258V), but supports AC or reversible DC protection without polarity constraints - unlike 1.5SMC180A which only clamps in reverse bias.
Is the 1.5SMC180C compatible with lead-free reflow soldering processes?
Yes, the 1.5SMC180C is qualified for lead-free reflow per J-STD-020 Moisture Sensitivity Level 1 - meaning it can withstand peak temperatures up to 260°C without preconditioning. Its matte tin-plated leads comply with J-STD-002 for solderability, and the UL 94V-0 molding compound resists thermal cracking during standard IPC/JEDEC profiles.
1.5SMC180C 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 146V
- Voltage - Breakdown (Min):
- 162V
- Voltage - Clamping (Max) @ Ipp:
- 258V
- Current - Peak Pulse (10/1000µs):
- 6.1A
- 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)
1.5SMC180C FAQ
1.How can I place an order for 1.5SMC180C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC180C 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 1.5SMC180C reliable?
The price and inventory of 1.5SMC180C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC180C is usually 5 days.
3.What payment methods are accepted for 1.5SMC180C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC180C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC180C?
1.5SMC180C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC180C 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 1.5SMC180C?
For technical support, including 1.5SMC180C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC180C requirements.
6.How does Aetrix verify that 1.5SMC180C is sourced from the original manufacturer or authorized distributors?
All 1.5SMC180C 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 1.5SMC180C meets industry standards.
7.What is the process for return or replacement of 1.5SMC180C?
All 1.5SMC180C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC180C, 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 1.5SMC180C part is unused and in its original packaging.
Return procedure for 1.5SMC180C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC180C Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
