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Taiwan Semiconductor Corporation P6SMB180CH
- Part No.:
- P6SMB180CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB180CH.pdf
- Description:
- 600W, 180V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:3,781
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Product details
Overview
P6SMB180CH from Taiwan Semiconductor is a bidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a breakdown voltage range of 162–198 V, clamping voltage of 258 V at 2.4 A peak pulse current, and DO-214AA (SMB) package. It provides ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance for automotive load-dump and EFT protection in power supply rails and CAN/LIN interfaces.
For engineers reviewing the P6SMB180CH datasheet, P6SMB180CH pinout, P6SMB180CH application, or P6SMB180CH equivalent, key selection criteria include its bidirectional configuration (CH suffix), 146 V standoff voltage, <1 µA reverse leakage at VWM, 150 °C max junction temperature, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
The P6SMB180CH is a glass-passivated, unidirectional/bidirectional TVS diode optimized for high-energy transients in automotive and industrial systems. Its 600 W peak pulse power rating (10/1000 µs waveform), 10 °C/W junction-to-case thermal resistance, and low-profile SMB package support robust surge handling without PCB area penalty.
It operates across –55 °C to +150 °C, meets JESD201 Class 2 whisker resistance, and features polarity marking per cathode band. Electrical characteristics-including VBR, VC, and IPPM-are specified at TA = 25 °C and derated above that ambient per published curves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 162 V / 198 V - ensures reliable triggering above system operating voltage while avoiding false clamping |
| VWM | 146 V - maximum continuous reverse working voltage before leakage exceeds 1 µA |
| VC @ IPPM | 258 V at 2.4 A - limits downstream voltage during 10/1000 µs surge to safe levels for 200 V-rated components |
| PPPSM | 600 W - handles high-energy transients such as ISO 7637-2 Pulse 5a (load dump) without failure |
| TJ max | +150 °C - supports under-hood automotive placement with full derating up to ambient 125 °C |
| IR @ VWM | <1 µA - minimizes standby power loss and avoids interference in high-impedance sensing circuits |
| Package | DO-214AA (SMB) - surface-mount footprint compatible with automated assembly and IPC-7351B standard land patterns |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, polarity indicated by cathode band; weight ≈ 0.090 g; UL 94V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry terminal in forward bias; common node in bidirectional operation | Connects to protected line (e.g., battery rail); symmetric conduction enables dual-polarity transient suppression |
| Cathode (banded end) | Current exit terminal in forward bias; reference node in bidirectional operation | Ground or return path connection; band orientation must match PCB silkscreen for correct polarity alignment |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics per stress test requirements |
| Glass passivated junction | Enhances long-term reliability and moisture resistance vs. epoxy-passivated alternatives in humid environments |
| ISO 7637-2 compliance | Withstands defined automotive transients (Pulse 1, 2a, 2b, 3a, 3b) without parameter shift or catastrophic failure |
| Fast response time | <1.0 ps rise time from 0 V to VBR(min) - clamps before sensitive ICs experience overvoltage damage |
| Moisture sensitivity level 1 | No floor life limitation or bake requirement before reflow - simplifies SMT manufacturing flow |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load-dump transients on 24 V battery-fed ECUs in commercial vehicles. IC Role / Device Role / Timing Role: Bidirectional TVS placed between battery input and DC-DC converter input stage. Use Value: Clamps 120 V/100 ms pulses to ≤258 V, preventing damage to upstream regulators and microcontrollers. | Use Scenario: Protecting 4–20 mA current-loop sensor inputs from ESD and inductive kickback in factory automation. IC Role / Device Role / Timing Role: Parallel-connected TVS across analog input terminals of signal conditioning ICs. Use Value: Limits transient voltage to 258 V within nanoseconds, preserving ADC accuracy and isolator integrity. |
| Automotive LIN Bus Protection | Power Supply Output Stage Protection |
Use Scenario: Safeguarding LIN transceivers against coupled noise and battery reversal events in door modules. IC Role / Device Role / Timing Role: Bidirectional TVS connected between LIN bus line and ground, adjacent to transceiver pins. Use Value: Maintains signal integrity during ±200 V fast transients while adding <1 pF capacitance at 1 MHz. | Use Scenario: Shielding regulated 12 V outputs of switching supplies from back-EMF and coupling spikes. IC Role / Device Role / Timing Role: TVS placed at output capacitor node, downstream of filter inductors. Use Value: Absorbs 600 W surges without degrading regulation or causing output overshoot beyond 258 V. |
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 | Same DO-214AA package, 180 V nominal VBR, but 600 W rating and 258 V VC identical; slightly higher VWM (146 V vs. 145 V) | Identical ISO 7637-2 compliance and AEC-Q101 qualification; same thermal performance | Select when second-source validation required; no layout change needed |
| 1.5KE180CA | Through-hole DO-201 package, same 180 V VBR, but lower 1.5 kW rating and higher VC (287 V); not AEC-Q101 qualified | Limited to non-automotive industrial use due to lack of automotive qualification and larger footprint | Use only in cost-sensitive, non-automotive designs where board space and qualification are secondary |
Compared with SMBJ180CA and 1.5KE180CA, the P6SMB180CH offers identical surge capability in a smaller surface-mount package with automotive qualification-making it optimal for space-constrained, safety-critical vehicle subsystems where reliability and manufacturability are prioritized.
Availability
P6SMB180CH is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and LIN bus protection requiring stable component supply and AEC-Q101-compliant surge immunity.
Supply support for P6SMB180CH 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 for automotive, industrial, and consumer markets.
The P6SMB series belongs to TSC's AEC-Q101-qualified transient voltage suppressor family, engineered specifically for robust, high-reliability protection of automotive electronics against load dump, ESD, and electrical fast transients.
FAQ
What does the 'CH' suffix indicate in P6SMB180CH?
The 'CH' suffix denotes a bidirectional configuration with cathode marking, meaning the P6SMB180CH conducts equally in both directions and suppresses transients regardless of polarity. This distinguishes it from unidirectional 'H' variants and makes it suitable for AC-coupled lines like LIN or differential buses where voltage reversals occur.
Is P6SMB180CH qualified for automotive applications?
Yes, P6SMB180CH is AEC-Q101 qualified and tested per automotive stress standards including temperature cycling, humidity bias, and mechanical shock. Its DO-214AA package meets JESD201 Class 2 whisker resistance and moisture sensitivity level 1, enabling direct use in engine control, body electronics, and ADAS modules without additional qualification.
What is the clamping voltage of P6SMB180CH and why does it matter?
The P6SMB180CH has a maximum clamping voltage (VC) of 258 V at 2.4 A peak pulse current (10/1000 µs). This value defines the highest voltage imposed on downstream circuitry during a surge event; staying below 258 V ensures compatibility with 200–250 V-rated capacitors, regulators, and transceivers in 24 V automotive systems.
Can P6SMB180CH replace P6SMB180AH in an existing design?
No-P6SMB180AH is unidirectional, while P6SMB180CH is bidirectional. Swapping them requires verifying circuit polarity and ensuring no forward-bias conduction paths exist. The P6SMB180CH's symmetrical behavior may cause unintended current flow in DC-only rails, so functional equivalence must be confirmed per schematic topology and transient directionality.
What is the thermal resistance of P6SMB180CH and how does it affect layout?
P6SMB180CH has a junction-to-case thermal resistance (RθJC) of 10 °C/W and junction-to-ambient (RθJA) of 55 °C/W. To maintain TJ ≤ 150 °C at full 600 W surge, PCB copper area under the SMB pad must provide ≥1 cm² of 2-oz copper with thermal vias-ensuring heat dissipation aligns with published derating curves in Figure 2.
P6SMB180CH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB
- 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):
- 2.4A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB180CH FAQ
1.How can I place an order for P6SMB180CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB180CH 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 P6SMB180CH reliable?
The price and inventory of P6SMB180CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB180CH is usually 5 days.
3.What payment methods are accepted for P6SMB180CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB180CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB180CH?
P6SMB180CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB180CH 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 P6SMB180CH?
For technical support, including P6SMB180CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB180CH requirements.
6.How does Aetrix verify that P6SMB180CH is sourced from the original manufacturer or authorized distributors?
All P6SMB180CH 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 P6SMB180CH meets industry standards.
7.What is the process for return or replacement of P6SMB180CH?
All P6SMB180CH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB180CH, 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 P6SMB180CH part is unused and in its original packaging.
Return procedure for P6SMB180CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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