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Vishay General Semiconductor - Diodes Division P6SMB170CAHE3_A/I
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- Part No.:
- P6SMB170CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB170CAHE3_A/I.pdf
- Description:
- TVS DIODE 145VWM 234VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,323
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Product details
Overview
P6SMB170CAHE3_A/I 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), 190 V minimum breakdown voltage (VBR), 234 V maximum clamping voltage (VC) at 2.6 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the P6SMB170CAHE3_A/I datasheet, P6SMB170CAHE3_A/I pinout, P6SMB170CAHE3_A/I application, or P6SMB170CAHE3_A/I 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 immunity design.
Technical Context
This TVS diode operates symmetrically in both polarities due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at VWM), while the 10/1000 μs surge rating reflects standardized lightning and inductive-switching transient immunity per IEC 61000-4-5.
The device is rated for continuous operation from −65 °C to +150 °C junction temperature and meets J-STD-020 MSL Level 1 (peak reflow ≤260 °C). Its 20 °C/W junction-to-lead thermal resistance supports localized heat dissipation during repetitive surge events when mounted on recommended 5.0 mm × 5.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 171 V - Maximum continuous reverse voltage before significant conduction begins; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 190–209 V at 1 mA - Voltage at which device enters avalanche conduction; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 234 V at 2.6 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs transient; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Surge energy handling capacity under standardized waveform; validates robustness against common ESD and load-dump transients. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance; informs derating requirements for sustained power dissipation in non-heatsinked layouts. |
| TJ max. | +150 °C - Maximum allowable junction temperature; sets upper limit for ambient + self-heating in high-reliability automotive or industrial use. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. No polarity marking for bidirectional types.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Identical terminals; bidirectional conduction enables protection of AC or floating nodes without orientation dependency. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - required for engine control, ADAS, and body electronics. |
| 600 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 Level 3 surge immunity (1 kV line-to-ground, 2 kV line-to-line) without external heatsinking in standard PCB layout. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a), improving protection margin for sensitive analog front-ends. |
| MSL Level 1 (260 °C peak reflow) | Enables single-pass lead-free reflow assembly without moisture-related popcorn failure or delamination risk. |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and Hall-effect sensor signal lines from load dump and inductive switching noise in 12 V/24 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt transient energy before it reaches IC ESD structures. Use Value: Prevents latch-up or permanent damage to sensor ASICs during battery disconnect events (ISO 16750-2) with no signal distortion during normal operation. |
Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers exposed to field wiring surges and ground potential differences. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input differential pair, coordinated with series current-limiting resistors and filtering capacitors. Use Value: Maintains signal integrity up to 234 V clamping level while surviving repeated 1 kV/0.5 J transients per IEC 61000-4-4, extending system uptime in factory environments. |
| Telecom Line Card Protection | Consumer Appliance Motor Control |
Use Scenario: Shielding Ethernet PHY magnetics and PoE interface circuits from induced lightning surges on outdoor cabling in enterprise switches. IC Role / Device Role / Timing Role: Secondary-level TVS placed after gas discharge tube (GDT) primary protection to handle residual fast-rising edges. Use Value: Limits let-through voltage to <234 V within nanoseconds, preventing damage to magnetics insulation and PHY transceiver ESD cells. |
Use Scenario: Suppressing back-EMF spikes generated by brushed DC motors in washing machines and HVAC blowers connected to microcontroller GPIOs. IC Role / Device Role / Timing Role: Snubber across motor terminals or flyback clamp on H-bridge low-side FETs to absorb inductive kickback energy. Use Value: Eliminates MCU reset events caused by >171 V transients, enabling reliable operation without software watchdog intervention. |
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 VWM (171 V), identical SMB package, but lower PPPM (600 W same), higher VC (243 V at 2.6 A), no AEC-Q101 qualification. | Commercial-grade only; not approved for automotive underhood or safety-critical modules. | Select when cost sensitivity outweighs automotive qualification requirements and clamping voltage margin allows 243 V. |
| 1.5SMC170CA | Same VWM and bidirectionality, but larger SMC (DO-214AB) package (4.5 mm × 3.9 mm vs. SMB's 3.9 mm × 2.2 mm), higher thermal mass, RθJA = 50 °C/W. | Better thermal performance for high-duty-cycle surges, but incompatible with dense automotive PCB layouts requiring SMB footprint. | Choose when board space permits larger footprint and long-term surge repetition rate exceeds P6SMB170CAHE3_A/I derating limits. |
Compared with SMBJ170CA and 1.5SMC170CA, P6SMB170CAHE3_A/I uniquely combines AEC-Q101 qualification, SMB footprint compatibility, and 234 V clamping in a single solution - making it optimal for space-constrained automotive and industrial designs where qualification and layout reuse are mandatory.
Availability
P6SMB170CAHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC analog inputs, telecom line card surge hardening, and consumer appliance motor control requiring stable component supply across production lifecycles.
Supply support for P6SMB170CAHE3_A/I 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The P6SMB series targets high-volume, high-reliability transient suppression in automotive, industrial, and communications infrastructure - engineered for AEC-Q101 compliance, automated assembly, and consistent clamping performance across temperature and life cycle.
FAQ
What does the "CA" suffix indicate in P6SMB170CAHE3_A/I?
The "CA" suffix denotes a bidirectional configuration, meaning P6SMB170CAHE3_A/I provides symmetrical transient suppression in both forward and reverse directions - essential for protecting AC-coupled signals, differential buses like CAN, or ungrounded sensor outputs without polarity concerns.
Is P6SMB170CAHE3_A/I suitable for automotive underhood applications?
Yes, P6SMB170CAHE3_A/I is AEC-Q101 qualified and rated for −65 °C to +150 °C junction temperature, making it suitable for underhood applications such as engine control units, transmission sensors, and ADAS radar modules where thermal and vibration reliability are critical.
How does the clamping voltage of P6SMB170CAHE3_A/I compare to its standoff voltage?
P6SMB170CAHE3_A/I has a 171 V standoff voltage (VWM) and clamps at 234 V (VC) during a 2.6 A 10/1000 μs transient - a 37 % overvoltage margin that ensures protected ICs remain within absolute maximum ratings while allowing sufficient headroom for normal signal swings.
What is the significance of the "HE3_A/I" suffix in P6SMB170CAHE3_A/I?
The "HE3" indicates RoHS-compliant and AEC-Q101 qualified construction; "A" is the revision code; "I" denotes 13-inch tape-and-reel packaging (3200 units per reel), optimized for high-volume SMT placement in automotive and industrial manufacturing lines.
Can P6SMB170CAHE3_A/I be used in place of a unidirectional TVS like P6SMB170AHE3_A/I?
No - P6SMB170CAHE3_A/I is bidirectional and lacks polarity marking, while P6SMB170AHE3_A/I is unidirectional with cathode band identification. Substitution requires verifying circuit topology: bidirectional use is mandatory for AC or floating nodes; unidirectional is required for DC-biased rails with defined ground reference.
P6SMB170CAHE3_A/I 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:
- Obsolete
- 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_A/I FAQ
1.How can I place an order for P6SMB170CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB170CAHE3_A/I 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_A/I reliable?
The price and inventory of P6SMB170CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB170CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB170CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB170CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB170CAHE3_A/I?
P6SMB170CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB170CAHE3_A/I 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_A/I?
For technical support, including P6SMB170CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB170CAHE3_A/I requirements.
6.How does Aetrix verify that P6SMB170CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB170CAHE3_A/I 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_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB170CAHE3_A/I?
All P6SMB170CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB170CAHE3_A/I, 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_A/I part is unused and in its original packaging.
Return procedure for P6SMB170CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB170CAHE3_A/I Tags
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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