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Taiwan Semiconductor Corporation P6SMB170H
- Part No.:
- P6SMB170H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB170H.pdf
- Description:
- 600W, 170V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:5,090
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Product details
Overview
P6SMB170H from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a breakdown voltage range of 153–187 V, stand-off voltage of 138 V, and clamping voltage of 244 V at 2.5 A peak pulse current. It features glass-passivated junction, AEC-Q101 qualification, and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive load-dump and EFT immunity.
For engineers reviewing the P6SMB170H datasheet, P6SMB170H pinout, P6SMB170H application, or P6SMB170H equivalent, this device is selected for high-energy transient protection in 12 V/24 V/48 V automotive power rails, industrial DC supplies, and LED driver inputs where precise clamping, low leakage (<1 µA @ 138 V), and fast sub-1 ps response are required.
Technical Context
The P6SMB170H operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its VBR min (153 V) to clamp transients while maintaining <1 µA leakage at its 138 V stand-off rating. Its DO-214AA (SMB) package delivers 10 °C/W junction-to-case thermal resistance and supports 100 A IFSM surge capability under 8.3 ms half-sine waveform.
Designed for automotive-grade reliability, it satisfies AEC-Q101 stress testing and moisture sensitivity level 1 (J-STD-020), with RoHS and halogen-free compliance per IEC 61249-2-21. Its 0.090 g mass and matte tin-plated leads ensure compatibility with automated SMT placement and J-STD-002 solderability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Min/Max) | 153 V / 187 V - defines guaranteed avalanche conduction onset across temperature and unit variation |
| VWM | 138 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 244 V @ 2.5 A - peak clamped voltage during 10/1000 µs transient, limiting downstream stress |
| PPPM | 600 W - non-repetitive peak pulse power handling per standard 10/1000 µs waveform |
| ID @ VWM | <1 µA - ensures minimal standby power loss and signal integrity in high-impedance circuits |
| TJ Max | +150 °C - enables operation in under-hood automotive environments and sealed industrial enclosures |
| Package | DO-214AA (SMB) - industry-standard surface-mount outline with 0.090 g mass and J-STD-002 solderability |
Pinout & Package
DO-214AA (SMB) package: molded plastic case meeting UL 94V-0 flammability rating; cathode indicated by band; matte tin-plated leads; polarity marked on body; weight ≈ 0.090 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential rail in unidirectional configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., battery feed); conducts during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including temperature cycling, HTRB, and ESD |
| Glass passivated junction | Enhances long-term stability and reduces parameter drift under thermal and humidity stress |
| Clamping voltage ≤244 V | Ensures protected ICs (e.g., MCU power pins, CAN transceivers) remain below absolute maximum ratings during ISO 7637-2 pulses |
| Response time <1.0 ps | Enables suppression of nanosecond-scale ESD and EFT events before damage occurs |
| Moisture sensitivity level 1 | Eliminates need for dry-pack or baking prior to reflow, reducing manufacturing overhead |
Applications
| Automotive Power Rail Protection | Industrial DC Supply Clamping |
|---|---|
Use Scenario: 24 V battery-fed engine control unit (ECU) exposed to load dump transients up to 120 V for 400 ms. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and DC-DC converter input to clamp surges before regulation stage. Use Value: Limits peak voltage to 244 V, protecting 36 V-rated input capacitors and enabling use of cost-optimized 36 V input converters. | Use Scenario: 48 V telecom power supply subjected to repetitive switching noise and lightning-induced surges. IC Role / Device Role / Timing Role: Primary transient suppressor at AC-DC rectifier output, absorbing energy before bulk capacitor and regulator. Use Value: Handles 600 W single-event pulses without degradation, maintaining system uptime in outdoor base station cabinets. |
| LED Driver Input Protection | Automotive CAN Bus Power Line Protection |
Use Scenario: Constant-current LED driver for commercial lighting, powered from 24 V vehicle or building supply. IC Role / Device Role / Timing Role: Front-end TVS on driver input to absorb inductive kickback from relay-controlled power feeds. Use Value: Prevents latch-up in driver ICs by clamping transients within 1 ns, preserving light-output consistency and driver lifetime. | Use Scenario: 12 V CAN FD node in ADAS domain controller, requiring immunity to coupled transients on VCC line. IC Role / Device Role / Timing Role: Secondary protection on CAN transceiver VCC rail, supplementing primary front-end filtering. Use Value: Maintains CAN communication integrity during ISO 7637-2 Pulse 2b (inductive switch-off) by limiting rail excursion to 244 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 |
|---|---|---|---|
| SMBJ170A | Same DO-214AA package, bidirectional; VBR = 189–209 V; VC = 274 V @ 2.2 A | Supports bipolar transients (e.g., AC-coupled lines); higher clamping voltage reduces margin for 24 V systems | Select SMBJ170A only if bidirectional protection is required and clamping margin allows. |
| 1.5SMC170A | DO-214AB (SMC) package; same VBR/VC specs but larger footprint and 1.5 kW rating | Higher power handling suits infrequent high-energy events; incompatible with SMB land pattern | Choose 1.5SMC170A when PCB layout permits larger SMC pad and >600 W pulse energy is expected. |
Compared with SMBJ170A and 1.5SMC170A, the P6SMB170H offers optimal balance of compact SMB footprint, unidirectional precision clamping at 244 V, and AEC-Q101 validation-making it preferred for space-constrained automotive and industrial 24–48 V rail protection where polarity is fixed and reliability is critical.
Availability
P6SMB170H is available at Aetrix Electronics and suitable for automotive ECU design, industrial DC power distribution, and LED driver development requiring stable component supply and full traceability.
Supply support for P6SMB170H 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, serving global automotive, industrial, and consumer markets since 1979.
The P6SMB series belongs to TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for robust transient immunity in harsh automotive and industrial power environments with emphasis on clamping accuracy, thermal stability, and SMT manufacturability.
FAQ
What is the breakdown voltage tolerance of the P6SMB170H?
The P6SMB170H has a specified breakdown voltage range of 153 V (minimum) to 187 V (maximum) at 1.0 mA test current, representing ±10% tolerance around the nominal 170 V rating. This tolerance is measured per ANSI/IEEE C62.35 and verified across production lots to ensure consistent clamping behavior in automotive and industrial applications where overvoltage thresholds must be tightly controlled.
Is the P6SMB170H suitable for bidirectional transient protection?
No, the P6SMB170H is a unidirectional TVS diode intended for DC rail protection with defined polarity. For bidirectional applications such as AC lines or differential buses, TSC offers the P6SMB170AH variant (marked NPJ), which provides symmetrical clamping in both directions. Using P6SMB170H in reverse-biased configurations outside its rated parameters may result in unreliable conduction or failure.
Does the P6SMB170H meet automotive qualification standards?
Yes, the P6SMB170H is AEC-Q101 qualified and tested per the full stress test schedule including HTGB, HTRB, temperature cycling, and ESD. It also complies with ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b for automotive electrical disturbance immunity. These qualifications are documented in Taiwan Semiconductor's official A2102 datasheet revision and apply specifically to the P6SMB170H part number.
What is the maximum clamping voltage of the P6SMB170H under standard test conditions?
The P6SMB170H has a maximum clamping voltage (VC) of 244 V when subjected to a 10/1000 µs impulse waveform at a peak pulse current (IPPM) of 2.5 A. This value is measured at TA = 25°C and represents the worst-case voltage seen by downstream circuitry during standardized surge events-critical for ensuring protected components remain within their absolute maximum voltage ratings.
Can the P6SMB170H be used in high-humidity environments?
Yes, the P6SMB170H is rated for moisture sensitivity level 1 per J-STD-020, meaning it can be stored indefinitely at ambient conditions without dry-pack requirements and withstands standard reflow profiles without popcorning. Its glass-passivated junction and UL 94V-0 molding compound further enhance reliability in humid or condensing environments typical of under-hood automotive or outdoor industrial deployments.
P6SMB170H 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:
- 1
- Bidirectional Channels:
- -
- 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)
P6SMB170H FAQ
1.How can I place an order for P6SMB170H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB170H 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 P6SMB170H reliable?
The price and inventory of P6SMB170H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB170H is usually 5 days.
3.What payment methods are accepted for P6SMB170H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB170H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB170H?
P6SMB170H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB170H 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 P6SMB170H?
For technical support, including P6SMB170H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB170H requirements.
6.How does Aetrix verify that P6SMB170H is sourced from the original manufacturer or authorized distributors?
All P6SMB170H 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 P6SMB170H meets industry standards.
7.What is the process for return or replacement of P6SMB170H?
All P6SMB170H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB170H, 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 P6SMB170H part is unused and in its original packaging.
Return procedure for P6SMB170H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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