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Vishay General Semiconductor - Diodes Division P6SMB170CAHE3/52
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- Part No.:
- P6SMB170CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB170CAHE3/52.pdf
- Description:
- TVS DIODE 145VWM 234VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,181
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Product details
Overview
P6SMB170CAHE3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on signal or power lines. It features a 170 V standoff voltage (VWM), 189 V minimum breakdown voltage (VBR), 234 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the P6SMB170CAHE3/52 datasheet, P6SMB170CAHE3/52 pinout, P6SMB170CAHE3/52 application, or P6SMB170CAHE3/52 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, SMB (DO-214AA) package compatibility, and thermal resistance (RθJA = 100 °C/W) for board-level surge protection design.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling transient suppression on AC-coupled or differential signal lines without polarity concerns. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at VWM).
The device delivers 600 W peak pulse power handling per 10/1000 μs waveform under derated conditions, with clamping voltage VC of 234 V at IPPM - critical for maintaining safe voltage margins across protected downstream components like microcontrollers or analog front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 170 V - maximum continuous reverse voltage before clamping begins; defines operating margin for protected circuitry. |
| VBR (Breakdown Voltage) | 189–209 V at 1 mA - voltage at which device transitions into avalanche conduction; ensures reliable turn-on during transients. |
| VC (Clamping Voltage) | 234 V at 234 A - maximum voltage seen by protected load during 10/1000 μs surge; determines safe overvoltage headroom. |
| PPPM (Peak Pulse Power) | 600 W - energy-handling capacity for standardized surge waveforms; supports IEC 61000-4-5 Level 4 compliance when properly laid out. |
| ID (Reverse Leakage) | <1.0 μA at 170 V - minimal DC loading on signal/power lines during normal operation; preserves signal integrity and power efficiency. |
| TJ max. | 150 °C - maximum junction temperature; enables use in under-hood automotive or high-ambient industrial environments. |
| RθJA | 100 °C/W - thermal resistance from junction to ambient; requires minimum 0.2" × 0.2" copper pads for rated power dissipation. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking - terminals are symmetrical anode/cathode pair.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically in bidirectional mode; connects across protected line-to-line or line-to-ground. |
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, ADAS, and infotainment systems. |
| 600 W peak pulse power | Handles repetitive 10/1000 μs surges up to 0.01% duty cycle - meets IEC 61000-4-5 surge immunity requirements for industrial equipment. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage drift over time and temperature - improves long-term protection consistency in harsh environments. |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without preconditioning - simplifies SMT assembly and eliminates moisture-related popcorning risk. |
| SMB (DO-214AA) footprint | Standardized 3.94 mm × 2.20 mm body with 2.18 mm min. pad width - enables drop-in replacement and layout reuse across P6SMB family variants. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across differential signal pairs or supply rails upstream of interface ICs. Use Value: Limits transient voltage to ≤234 V during 10/1000 μs surges, preserving signal fidelity and preventing latch-up in 3.3 V or 5 V logic interfaces. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers against induced surges from relay coil switching and motor drive noise. IC Role / Device Role / Timing Role: Line-to-line TVS on 24 V DC field wiring to suppress fast-rising transients before they reach optocoupler or MCU input stages. Use Value: Clamps 600 W surges within 1 ns response time, reducing failure rate of isolation barriers and extending mean time between failures (MTBF) in factory automation. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Surge protection on Ethernet PHY magnetics secondary side or RS-485 data lines exposed to lightning-induced coupling. IC Role / Device Role / Timing Role: Bidirectional shunt device across twisted-pair data lines to clamp common-mode and differential-mode transients simultaneously. Use Value: Maintains <1.0 μA leakage at 170 V, minimizing impact on signal attenuation and insertion loss in high-speed communication links. |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters for smart home devices, guarding against capacitor discharge or regulator fault events. IC Role / Device Role / Timing Role: Clamp component placed between output rail and ground to prevent >234 V spikes from damaging USB-PD controllers or battery management ICs. Use Value: Enables compact 2.2 mm × 3.9 mm layout while delivering full 600 W surge rating - reduces BOM count versus multi-stage protection schemes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ170CA | Same VWM (170 V) and bidirectional configuration, but lower PPPM (400 W) and higher VC (274 V at IPPM). | Limited to lower-energy surge environments (e.g., consumer-grade USB ports); not AEC-Q101 qualified. | Select when cost sensitivity outweighs automotive or industrial surge robustness requirements. |
| 1.5KE170CA | Through-hole DO-15 package, same VWM and bidirectional function, but larger footprint and lower thermal performance (RθJA ≈ 150 °C/W). | Used where manual assembly or legacy board designs preclude SMT adoption; unsuitable for high-density automotive PCBs. | Choose only for prototyping or repair scenarios requiring through-hole compatibility. |
Compared with SMAJ170CA and 1.5KE170CA, P6SMB170CAHE3/52 provides superior surge energy handling (600 W vs. 400 W or ~500 W), tighter clamping (234 V vs. 274 V or 280 V), and automotive-grade qualification - making it the preferred choice for space-constrained, high-reliability applications demanding repeatable transient suppression.
Availability
P6SMB170CAHE3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter designs requiring stable component supply and AEC-Q101 assurance.
Supply support for P6SMB170CAHE3/52 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, precision, and application-specific optimization.
The P6SMB Series was developed to deliver high-power, surface-mount TVS solutions for automotive and industrial markets - balancing compact SMB packaging with AEC-Q101 qualification and 600 W surge capability.
FAQ
What is the clamping voltage of P6SMB170CAHE3/52 at its rated peak pulse current?
The clamping voltage (VC) of P6SMB170CAHE3/52 is 234 V at 234 A peak pulse current (IPPM), measured under the standard 10/1000 μs waveform condition. This value defines the maximum voltage imposed on protected circuitry during surge events and is confirmed in the Vishay P6SMB datasheet revision 09-Jan-2024, page 2. The P6SMB170CAHE3/52 maintains this clamping performance across its specified operating temperature range.
Is P6SMB170CAHE3/52 suitable for automotive applications?
Yes, P6SMB170CAHE3/52 is AEC-Q101 qualified, as indicated by the "HE3" suffix in its ordering code. It undergoes stress testing for temperature cycling, humidity bias, and mechanical shock per automotive reliability standards. The P6SMB170CAHE3/52 is explicitly recommended for engine control units, ADAS sensors, and infotainment systems where robust transient suppression is required under extended temperature and vibration conditions.
What does the "CA" suffix mean in P6SMB170CAHE3/52?
The "CA" suffix in P6SMB170CAHE3/52 denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression in both polarities, with identical VWM, VBR, and VC characteristics in either direction. This distinguishes it from unidirectional variants (e.g., P6SMB170A), which have cathode/anode polarity and conduct only in reverse bias. The P6SMB170CAHE3/52 has no polarity marking on its SMB package.
What is the thermal resistance of P6SMB170CAHE3/52, and how does it affect layout?
P6SMB170CAHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To achieve rated 600 W pulse power, PCB layout must provide these minimum pad dimensions and avoid excessive thermal isolation. The P6SMB170CAHE3/52 datasheet specifies this requirement in the "Maximum Ratings" table and Figure 2 derating curve.
How does P6SMB170CAHE3/52 differ from P6SMB170AHE3/52?
P6SMB170CAHE3/52 is bidirectional with symmetrical clamping in both directions, while P6SMB170AHE3/52 is unidirectional and conducts only in reverse bias (cathode marked). Key differences include polarity marking (absent on CA), forward voltage drop (VF = 3.5 V at 50 A for unidirectional only), and IFSM rating (100 A for unidirectional, not defined for bidirectional). The P6SMB170CAHE3/52 is selected for AC-coupled or differential line protection where polarity cannot be guaranteed.
P6SMB170CAHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 145V
- Voltage - Breakdown (Min):
- 162V
- Voltage - Clamping (Max) @ Ipp:
- 234V
- Current - Peak Pulse (10/1000µs):
- 2.6A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB170CAHE3/52 FAQ
1.How can I place an order for P6SMB170CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB170CAHE3/52 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 P6SMB170CAHE3/52 reliable?
The price and inventory of P6SMB170CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB170CAHE3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB170CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB170CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB170CAHE3/52?
P6SMB170CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB170CAHE3/52 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 P6SMB170CAHE3/52?
For technical support, including P6SMB170CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB170CAHE3/52 requirements.
6.How does Aetrix verify that P6SMB170CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB170CAHE3/52 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 P6SMB170CAHE3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB170CAHE3/52?
All P6SMB170CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB170CAHE3/52, 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 P6SMB170CAHE3/52 part is unused and in its original packaging.
Return procedure for P6SMB170CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB170CAHE3/52 Tags
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