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Taiwan Semiconductor Corporation 1.5SMC160CH
- Part No.:
- 1.5SMC160CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC160CH.pdf
- Description:
- 1500W, 160V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:5,795
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Product details
Overview
1.5SMC160CH from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode designed for high-energy surge protection in automotive and industrial power rails. It features a 160V working stand-off voltage (VWM), 176V maximum breakdown voltage (VBR), 230V clamping voltage (VC) at 6.8A peak pulse current, and 1500W peak pulse power rating per 10/1000μs waveform - deployed across DC power inputs, CAN bus interfaces, and sensor signal lines.
For engineers reviewing the 1.5SMC160CH datasheet, 1.5SMC160CH pinout, 1.5SMC160CH application, or 1.5SMC160CH equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, DO-214AB (SMC) package thermal performance (RθJA = 50°C/W), and leakage current ≤1μA at 130V.
Technical Context
This TVS operates as a voltage-clamped shunt protector: under normal bias it presents high impedance (<1μA leakage at VWM = 130V), then rapidly avalanches below 176V to clamp transients to ≤230V at 6.8A. Its glass-passivated junction ensures stable breakdown and fast response (<1.0ps), critical for protecting downstream MOSFETs and microcontrollers from ESD and load-dump events.
The device is explicitly rated for bidirectional use (denoted by "CH" suffix), with symmetrical electrical characteristics in both polarities - enabling single-device protection of AC-coupled lines or floating differential buses without polarity concerns. Thermal design must account for RθJC = 15°C/W and maximum junction temperature of 150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 130 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin for 12–48V systems. |
| VBR (min/max) | 144 V / 176 V - Breakdown occurs within this range at 1mA test current; ensures reliable triggering above system overvoltage thresholds. |
| VC @ IPPM | 230 V at 6.8 A - Clamped voltage during 10/1000μs surge; determines maximum stress imposed on protected ICs. |
| PPK | 1500 W - Peak pulse power handling per single transient; supports ISO 7637-2 Pulse 5a (load dump) in 24V automotive systems. |
| IR @ VWM | ≤1 μA - Ultra-low leakage preserves battery life and avoids false triggering in low-power sensor nodes. |
| TJ max | 150 °C - Enables operation in under-hood automotive environments and industrial enclosures without derating. |
| Package | DO-214AB (SMC) - Standardized surface-mount outline with 50°C/W junction-to-ambient thermal resistance; compatible with automated reflow assembly. |
Pinout & Package
Package: DO-214AB (SMC), bidirectional configuration - no anode/cathode distinction; terminals are symmetrical and non-polarized. Cathode band marking is omitted per bidirectional design.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Surge Input / Line Side | Connects to unprotected line (e.g., battery feed or signal trace); conducts transient energy to Terminal 2 during overvoltage. |
| Terminal 2 | Surge Return / Ground or Reference | Connects to system ground or return path; completes clamping loop; must be low-inductance for effective 10/1000μs pulse suppression. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - suitable for engine control, body electronics, and ADAS power domains. |
| ISO 7637-2 compliance | Meets Pulse 1 (inductive load disconnect), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling) - enables single-part compliance across full vehicle EMC test plan. |
| Glass passivated junction | Ensures stable VBR over lifetime and temperature; eliminates parameter drift due to moisture ingress or metallization migration in humid environments. |
| Fast response time | <1.0 ps - Responds faster than most silicon-based protection devices, limiting voltage overshoot before downstream ICs experience latch-up or gate oxide damage. |
| Moisture sensitivity level 1 | No floor-life limitation or baking requirement prior to reflow; simplifies SMT line logistics and reduces manufacturing cost. |
Applications
| Automotive Power Rail Protection | CAN Bus Transient Suppression |
|---|---|
|
Use Scenario: Protecting 24V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Shunt clamping element placed between battery input and DC-DC converter input stage. Use Value: Limits transient voltage to ≤230V, preventing damage to 36V-rated input capacitors and enabling use of lower-cost 35V-input regulators. |
Use Scenario: Safeguarding high-speed CAN FD transceivers from ESD (IEC 61000-4-2) and coupled surges in chassis wiring harnesses. IC Role / Device Role / Timing Role: Bidirectional TVS placed across CANH–CANL differential pair, referenced to chassis ground. Use Value: Clamps ±230V transients while maintaining <1pF junction capacitance - preserving signal integrity up to 5 Mbps without timing skew. |
| Industrial Sensor Signal Line Protection | 4–20 mA Loop Surge Immunity |
|
Use Scenario: Shielding analog output pins of pressure/temperature sensors in factory automation against induced lightning surges on long cable runs. IC Role / Device Role / Timing Role: Connected between signal line and local ground, with series current-limiting resistor upstream. Use Value: Absorbs 1500W pulses without degradation, ensuring sensor accuracy remains unaffected after repeated 1kV/1.2×50μs transients. |
Use Scenario: Hardening 4–20mA transmitter outputs against accidental 24V short-to-battery or field-wiring faults in process control systems. IC Role / Device Role / Timing Role: Placed across loop terminals (IOUT–GND) to clamp fault voltages before damaging DAC or op-amp output stages. Use Value: Withstands ≥1000 surges at 6.8A without parameter shift - extends field service life beyond 10 years in harsh plant environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160CA | Same VWM (130V), identical DO-214AA package but 600W PPK rating - 60% lower surge capacity than 1.5SMC160CH. | Limited to lower-energy transients (e.g., IEC 61000-4-5 Level 3); unsuitable for automotive load dump. | Select only when space constraints prevent DO-214AB placement and surge energy is confirmed ≤600W. |
| 1.5KE160CA | Through-hole TO-204AE (DO-41) package; same 130V VWM and bidirectional function but 1500W rating - requires manual or wave soldering. | Not suitable for fully automated SMT production; incompatible with high-density PCB layouts. | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required. |
Compared with SMBJ160CA and 1.5KE160CA, the 1.5SMC160CH uniquely delivers automotive-grade AEC-Q101 qualification, ISO 7637-2 compliance, and SMT-ready DO-214AB packaging - making it the only option qualified for volume production in safety-critical 24V automotive modules.
Availability
1.5SMC160CH is available at Aetrix Electronics and suitable for automotive power rail protection, CAN bus interface hardening, and industrial 4–20 mA loop surge immunity requiring stable component supply across multi-year production cycles.
Supply support for 1.5SMC160CH 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, and rectifiers - with global distribution and AEC-Q101 validation capabilities.
The 1.5SMCxxCH series was developed specifically for automotive and industrial transient suppression, emphasizing robustness under ISO 7637-2 pulses, low leakage, and SMT manufacturability in harsh thermal environments.
FAQ
What does the "CH" suffix indicate in 1.5SMC160CH?
The "CH" suffix denotes a bidirectional configuration - meaning the 1.5SMC160CH provides symmetrical clamping in both polarities, with identical VBR, VC, and IR specifications regardless of voltage polarity applied. This eliminates the need for polarity-aware layout and enables protection of AC-coupled or floating differential signals such as CAN, RS-485, or sensor bridges without external diode pairing.
Is 1.5SMC160CH compliant with AEC-Q101 and ISO 7637-2?
Yes, the 1.5SMC160CH is explicitly qualified to AEC-Q101 for automotive reliability and meets ISO 7637-2 requirements for Pulse 1, 2a, 2b, 3a, and 3b - verified in Taiwan Semiconductor's official documentation (Version B2207). It is approved for use in engine control units, body control modules, and infotainment power supplies where standardized surge immunity is mandated.
What is the maximum clamping voltage of 1.5SMC160CH and at what current is it specified?
The maximum clamping voltage (VC) of the 1.5SMC160CH is 230 V, measured at a peak pulse current (IPPM) of 6.8 A using the standard 10/1000 μs double-exponential waveform. This value is guaranteed across temperature and lifetime, and defines the upper voltage limit imposed on protected circuitry during worst-case transients.
Can 1.5SMC160CH replace unidirectional 1.5SMC160H in existing designs?
No - the 1.5SMC160CH is bidirectional and lacks cathode marking, whereas the 1.5SMC160H is unidirectional with defined polarity. Substituting them requires verifying that the protected circuit tolerates symmetrical clamping and confirming no forward-conduction paths exist that could cause unintended conduction. Layout changes may be needed to remove polarity-dependent routing.
What is the thermal resistance and maximum junction temperature for 1.5SMC160CH?
The 1.5SMC160CH has a junction-to-ambient thermal resistance (RθJA) of 50°C/W and a junction-to-case resistance (RθJC) of 15°C/W, with a maximum rated junction temperature (TJ) of +150°C. These values assume standard JEDEC PCB mounting (2s2p copper) and define safe continuous power dissipation limits - especially important in sealed automotive enclosures where ambient temperatures exceed 105°C.
1.5SMC160CH 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):
- 130V
- Voltage - Breakdown (Min):
- 144V
- Voltage - Clamping (Max) @ Ipp:
- 230V
- Current - Peak Pulse (10/1000µs):
- 6.8A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC160CH FAQ
1.How can I place an order for 1.5SMC160CH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC160CH 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 1.5SMC160CH reliable?
The price and inventory of 1.5SMC160CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC160CH is usually 5 days.
3.What payment methods are accepted for 1.5SMC160CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC160CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC160CH?
1.5SMC160CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC160CH 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 1.5SMC160CH?
For technical support, including 1.5SMC160CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC160CH requirements.
6.How does Aetrix verify that 1.5SMC160CH is sourced from the original manufacturer or authorized distributors?
All 1.5SMC160CH 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 1.5SMC160CH meets industry standards.
7.What is the process for return or replacement of 1.5SMC160CH?
All 1.5SMC160CH units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC160CH, 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 1.5SMC160CH part is unused and in its original packaging.
Return procedure for 1.5SMC160CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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