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Vishay General Semiconductor - Diodes Division P6SMB170AHE3_B/I
- Part No.:
- P6SMB170AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB170AHE3_B/I.pdf
- Description:
- 600W,170V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,336
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Product details
Overview
P6SMB170AHE3_B/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 170 V standoff voltage (VWM), 179 V maximum breakdown voltage (VBR), and 600 W peak pulse power (10/1000 μs). It provides clamping protection for sensitive ICs, MOSFETs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P6SMB170AHE3_B/I datasheet, P6SMB170AHE3_B/I pinout, P6SMB170AHE3_B/I application, or P6SMB170AHE3_B/I equivalent, key selection criteria include its AEC-Q101 qualification, 234 V maximum clamping voltage at 2.6 A IPPM, low thermal resistance (RθJL = 20 °C/W), and RoHS-compliant matte tin-plated leads suitable for J-STD-002 soldering.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, designed to shunt transient energy away from downstream circuitry during ESD or inductive switching events. Its glass-passivated junction ensures stable leakage performance and fast response time (<1 ns).
Rated for 150 °C maximum junction temperature and MSL Level 1 (260 °C reflow peak), the P6SMB170AHE3_B/I supports automated SMT placement and meets UL 94 V-0 flammability requirements. The HE3 suffix confirms AEC-Q101 qualification and RoHS compliance per Vishay's automotive-grade ordering code convention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 145 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (Breakdown Voltage) | 162–179 V at 1 mA - Confirmed avalanche conduction threshold range under standardized test conditions |
| VC (Clamping Voltage) | 234 V at 2.6 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs surge |
| PPPM (Peak Pulse Power) | 600 W - Surge energy handling capability with 0.01% duty cycle, enabling robust transient suppression |
| ID (Reverse Leakage) | 1.0 μA at VWM - Low leakage preserves signal integrity and minimizes standby power loss |
| RθJL (Junction-to-Lead Thermal Resistance) | 20 °C/W - Enables efficient heat transfer to PCB copper pads, supporting sustained power dissipation |
| TJ max. | 150 °C - Allows reliable operation in under-hood automotive and high-ambient industrial environments |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads; cathode indicated by band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse surge return path | Connected to system ground or lower-potential rail during transient clamping |
| Cathode | Avalanche conduction terminal / Clamping output | Connected to protected line; conducts when voltage exceeds VBR, diverting surge current to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment power rails |
| 600 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 Level 4 surges without degradation when mounted per recommended pad layout |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage across temperature (-65 °C to +150 °C) |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning or baking |
| UL 94 V-0 molding compound | Meets flame-retardancy requirements for enclosed industrial and transportation equipment |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between signal line and chassis ground to limit transient overvoltage. Use Value: Clamps to ≤234 V during 2.6 A surge, preventing damage to 170 V-rated interface ICs while maintaining <1 μA leakage at 145 V operating voltage. |
Use Scenario: Safeguarding 24 V DC digital input modules against inductive kickback from solenoids and relay coils. IC Role / Device Role / Timing Role: Primary overvoltage clamp on field-side input traces, coordinated with series impedance and filtering. Use Value: Absorbs 600 W surge energy without failure, enabling compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity standards. |
| Telecom Power Rail Protection | Consumer Appliance Motor Control |
Use Scenario: Guarding 48 V PoE-powered Ethernet switch PHYs and PMICs against lightning-induced surges on DC input lines. IC Role / Device Role / Timing Role: First-line transient suppressor upstream of DC-DC converters and hot-swap controllers. Use Value: Achieves 234 V clamping at 2.6 A with 20 °C/W thermal resistance, minimizing voltage overshoot into downstream 50 V-rated components. |
Use Scenario: Shielding microcontroller GPIOs and gate drivers in washing machine motor inverters from commutation spikes. IC Role / Device Role / Timing Role: Localized clamping element across half-bridge FET source-drain paths and logic-level signal lines. Use Value: Delivers AEC-Q101 reliability and 150 °C junction rating for sustained operation in thermally constrained appliance enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ170A-E3/5B | Same VWM/VBR/VC specs but SMA package (DO-214AC); RθJA = 110 °C/W vs. 100 °C/W for P6SMB170AHE3_B/I | Larger footprint and lower power density; less suitable for space-constrained automotive modules | Select when legacy SMA layout exists or higher MSL tolerance (Level 1, 260 °C) is required without AEC-Q101 need |
| 1.5SMC170AHE3_A | Same electrical specs but SMC (DO-214AB) package; 1.5 kW PPPM rating and 100 A IFSM vs. 600 W / 100 A | Higher surge capacity but larger size and higher parasitic inductance; not drop-in compatible | Choose for industrial systems requiring >600 W single-event surge margin, accepting larger board area and different thermal profile |
Compared with SMAJ170A-E3/5B and 1.5SMC170AHE3_A, the P6SMB170AHE3_B/I offers optimal balance of AEC-Q101 qualification, SMB footprint efficiency, and verified 600 W clamping performance-making it preferred for new automotive and compact industrial designs where board space and qualification alignment are critical.
Availability
P6SMB170AHE3_B/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom power supplies, and consumer appliance motor controls requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB170AHE3_B/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, precision, and automotive-grade qualification.
The P6SMB Series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments-including automotive, industrial automation, and telecommunications infrastructure.
FAQ
What is the clamping voltage of P6SMB170AHE3_B/I at its rated peak pulse current?
The P6SMB170AHE3_B/I has a maximum clamping voltage (VC) of 234 V at 2.6 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The P6SMB170AHE3_B/I maintains this clamping performance across its full operating temperature range when mounted on the recommended 0.2" × 0.2" copper pads.
Is P6SMB170AHE3_B/I qualified for automotive applications?
Yes, the P6SMB170AHE3_B/I is AEC-Q101 qualified, as confirmed by its HE3 suffix and "_B" revision code per Vishay's ordering nomenclature. It is certified for use in automotive subsystems including body electronics, ADAS sensors, and powertrain control units where transient immunity and long-term reliability under thermal cycling are mandatory. The P6SMB170AHE3_B/I undergoes stress testing per AEC-Q101 Rev D requirements including HTRB, HTGB, and temperature cycling.
What does the "_B/I" suffix mean in P6SMB170AHE3_B/I?
The "_B" denotes AEC-Q101 qualification for the P6SMB170AHE3_B/I within the 6.8 V to 220 V VWM range, while "/I" specifies packaging in 13-inch diameter plastic tape and reel with 3200 units per reel. This format aligns with Vishay's standard automotive-grade ordering structure, distinguishing it from commercial variants (e.g., /52 or /5B without _B) and ensuring traceability and process control for automotive production. The P6SMB170AHE3_B/I is RoHS-compliant and halogen-free.
How does the thermal performance of P6SMB170AHE3_B/I compare to similar SMB TVS diodes?
The P6SMB170AHE3_B/I features a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W and junction-to-ambient (RθJA) of 100 °C/W when mounted per the recommended 0.2" × 0.2" copper pad layout. This enables effective heat dissipation during repetitive surge events and supports continuous operation up to 150 °C junction temperature. Compared to non-AEC-Q101 SMB TVS parts, the P6SMB170AHE3_B/I maintains tighter thermal parameter tolerances across lot and temperature extremes due to its qualified manufacturing flow.
Can P6SMB170AHE3_B/I be used in bidirectional configurations?
No, the P6SMB170AHE3_B/I is a unidirectional TVS diode, as indicated by its "A" suffix and cathode-band marking. Bidirectional variants in the same series use the "CA" suffix (e.g., P6SMB170CA). Using the P6SMB170AHE3_B/I in reverse-biased AC signal paths would result in forward conduction and potential failure. For bidirectional protection at 170 V standoff, select P6SMB170CAHE3_B/I instead-its breakdown and clamping characteristics are symmetric in both directions.
P6SMB170AHE3_B/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB170AHE3_B/I FAQ
1.How can I place an order for P6SMB170AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB170AHE3_B/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 P6SMB170AHE3_B/I reliable?
The price and inventory of P6SMB170AHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB170AHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB170AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB170AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB170AHE3_B/I?
P6SMB170AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB170AHE3_B/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 P6SMB170AHE3_B/I?
For technical support, including P6SMB170AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB170AHE3_B/I requirements.
6.How does Aetrix verify that P6SMB170AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB170AHE3_B/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 P6SMB170AHE3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB170AHE3_B/I?
All P6SMB170AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB170AHE3_B/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 P6SMB170AHE3_B/I part is unused and in its original packaging.
Return procedure for P6SMB170AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB170AHE3_B/I Tags
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