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Taiwan Semiconductor Corporation P6SMB170CH
- Part No.:
- P6SMB170CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB170CH.pdf
- Description:
- 600W, 170V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:2,636
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Product details
Overview
P6SMB170CH from Taiwan Semiconductor is a bidirectional 600W surface-mount Transient Voltage Suppressor (TVS) diode in DO-214AA (SMB) package, with breakdown voltage range 153–187 V, clamping voltage 244 V at 2.5 A peak pulse current, and AEC-Q101 qualification for automotive-grade reliability. It protects power rails and signal lines in automotive lighting, infotainment, and body control modules against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the P6SMB170CH datasheet, P6SMB170CH pinout, P6SMB170CH application, or P6SMB170CH equivalent, this page delivers verified electrical specs, thermal performance, clamping behavior, polarity marking, and automotive compliance data - all specific to the CH-suffixed bidirectional variant of the P6SMB170 series.
Technical Context
The P6SMB170CH uses a glass-passivated silicon junction optimized for fast transient response (<1.0 ps rise time from 0 V to VBR min) and low leakage (<1 µA @ VWM = 138 V). Its bidirectional configuration enables symmetrical clamping in AC-coupled or floating circuits without external polarity management.
Thermally, it features RθJC = 10 °C/W and RθJA = 55 °C/W, enabling sustained operation up to TJ = 150 °C. The DO-214AA (SMB) package supports automated placement and meets J-STD-020 moisture sensitivity level 1 and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 153 V / 187 V - Ensures reliable triggering above system operating voltage while accommodating manufacturing tolerance |
| VWM | 138 V - Maximum continuous reverse working voltage; defines safe DC/AC steady-state blocking capability |
| VC @ IPPM | 244 V @ 2.5 A - Clamped voltage during 10/1000 µs surge; determines maximum stress on downstream ICs |
| PPPSM | 600 W - Peak pulse power rating per single 10/1000 µs waveform; sets transient energy absorption capacity |
| IR @ VWM | <1 µA - Ultra-low reverse leakage ensures minimal standby power loss and signal integrity in high-impedance nodes |
| TJ max | 150 °C - Maximum junction temperature; enables use in under-hood automotive environments |
| Package | DO-214AA (SMB) - Surface-mount outline with 0.090 g mass, UL 94V-0 molding, and matte tin-plated leads |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with cathode band marking; bidirectional symmetry means no anode/cathode distinction - terminals are functionally identical and interchangeable. Polarity marking is omitted for CH variants per datasheet specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Transient clamp node | Connected across protected line and ground (or rail); conducts bidirectionally during overvoltage events |
| Terminal 2 | Transient clamp node | Electrically identical to Terminal 1; no functional distinction in CH configuration |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including temperature cycling, mechanical shock, and humidity exposure per stress test requirements |
| ISO 7637-2 compliance | Meets Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling) immunity standards |
| Glass passivated junction | Enhances long-term stability and reduces parameter drift under thermal cycling and humidity stress |
| Low profile SMB package | Enables high-density PCB layouts and compatibility with standard SMT reflow profiles (J-STD-020 Level 1) |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally constrained supply chains |
Applications
| Automotive Lighting Systems | Infotainment Power Rails |
|---|---|
Use Scenario: LED headlamp drivers exposed to load-dump transients during alternator regulation faults. IC Role / Device Role: Bidirectional TVS placed across 12 V input rail to clamp ISO 7637-2 Pulse 5a (load dump) spikes. Use Value: Limits rail voltage to ≤244 V during 600 W surges, preventing damage to buck controllers and LED drivers rated for 30 V max input. |
Use Scenario: USB-C PD and display interface power supplies in center-stack units subjected to ESD and switching noise. IC Role / Device Role: Secondary-level protection after primary DC/DC converter, guarding against coupled transients from CAN/LIN bus activity. Use Value: Sub-1 µA leakage avoids bias current errors in precision voltage references; 244 V clamping preserves 24 V-rated PMICs. |
| Body Control Modules (BCM) | Industrial Motor Drives |
Use Scenario: LIN bus transceivers and window lift motor drivers encountering battery disconnect transients. IC Role / Device Role: Bidirectional clamping between VBAT and GND on microcontroller power domains. Use Value: Withstands repetitive 10/1000 µs pulses up to 600 W without degradation, supporting 15-year automotive lifecycle. |
Use Scenario: 24 V control logic inputs on PLC I/O modules interfacing with inductive solenoid loads. IC Role / Device Role: Input-side transient suppressor on digital input channels subject to inductive kickback. Use Value: 138 V stand-off voltage exceeds 24 V nominal + 100 % tolerance, ensuring no false triggering during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ170CA | Same VBR (153–187 V), identical DO-214AA package, but higher VC = 274 V @ 2.2 A; lower PPPSM = 600 W same rating but different derating curve | Marginally higher clamping voltage reduces protection margin for 24 V systems with tight voltage tolerances | Select SMBJ170CA only if board layout allows minor clamping voltage increase and thermal environment matches its RθJA = 60 °C/W |
| 1.5SMC170CA | Higher PPPSM = 1500 W, larger DO-214AB (SMC) package (4.5 × 3.9 mm vs. 4.5 × 3.2 mm), VC = 274 V @ 5.5 A | Requires PCB footprint change and offers over-spec energy handling for most 600 W use cases | Choose 1.5SMC170CA only when system-level testing confirms need for >600 W single-pulse robustness or extended surge repetition rate |
Compared with SMBJ170CA and 1.5SMC170CA, the P6SMB170CH provides optimal balance of compact SMB footprint, AEC-Q101 qualification, and precise 244 V clamping - making it preferred for space-constrained automotive ECUs where consistent low-leakage and ISO 7637-2 compliance are mandatory.
Availability
P6SMB170CH is available at Aetrix Electronics and suitable for automotive lighting systems, infotainment power rails, and body control modules requiring stable component supply with full traceability and AEC-Q101 conformance.
Supply support for P6SMB170CH 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, MOSFETs, and power management devices.
The P6SMB series was designed specifically for AEC-Q101-compliant automotive transient suppression, targeting high-reliability 12 V/24 V systems where compact size, low leakage, and ISO 7637-2 immunity are critical.
FAQ
What does the "CH" suffix indicate in P6SMB170CH?
The "CH" suffix denotes a bidirectional configuration with symmetrical breakdown characteristics in both polarities. Unlike unidirectional "H" variants, P6SMB170CH has no cathode band marking and functions identically regardless of terminal orientation - ideal for AC-coupled or floating signal paths where polarity cannot be guaranteed.
Is P6SMB170CH AEC-Q101 qualified?
Yes, P6SMB170CH is fully AEC-Q101 qualified per the manufacturer's documentation. This includes stress testing for temperature cycling, high-temperature operating life, mechanical shock, and humidity resistance - confirming suitability for automotive under-hood and cabin applications.
What is the maximum clamping voltage of P6SMB170CH and at what current?
The maximum clamping voltage of P6SMB170CH is 244 V, measured at a peak pulse current (IPPM) of 2.5 A using the standardized 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during transient events.
Does P6SMB170CH meet ISO 7637-2 requirements?
Yes, P6SMB170CH is explicitly rated to meet ISO 7637-2 for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling). Its 600 W peak pulse power and fast response (<1.0 ps) ensure compliance across all specified test waveforms.
What is the thermal resistance from junction to ambient for P6SMB170CH?
The junction-to-ambient thermal resistance (RθJA) of P6SMB170CH is 55 °C/W under standard JEDEC test conditions (single-layer 1 in² copper pad). This value assumes typical PCB layout; actual performance improves with enhanced copper area or thermal vias.
P6SMB170CH 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):
- 138V
- Voltage - Breakdown (Min):
- 153V
- Voltage - Clamping (Max) @ Ipp:
- 244V
- Current - Peak Pulse (10/1000µs):
- 2.5A
- 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)
P6SMB170CH FAQ
1.How can I place an order for P6SMB170CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB170CH 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 P6SMB170CH reliable?
The price and inventory of P6SMB170CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB170CH is usually 5 days.
3.What payment methods are accepted for P6SMB170CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB170CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB170CH?
P6SMB170CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB170CH 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 P6SMB170CH?
For technical support, including P6SMB170CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB170CH requirements.
6.How does Aetrix verify that P6SMB170CH is sourced from the original manufacturer or authorized distributors?
All P6SMB170CH 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 P6SMB170CH meets industry standards.
7.What is the process for return or replacement of P6SMB170CH?
All P6SMB170CH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB170CH, 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 P6SMB170CH part is unused and in its original packaging.
Return procedure for P6SMB170CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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