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Vishay General Semiconductor - Diodes Division P6SMB170AHE3_A/I
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- Part No.:
- P6SMB170AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB170AHE3_A/I.pdf
- Description:
- TVS DIODE 145VWM 234VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,184
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Product details
Overview
P6SMB170AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on power and signal lines. It features a 170 V standoff voltage (VWM), 194.5 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 - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the P6SMB170AHE3_A/I datasheet, P6SMB170AHE3_A/I pinout, P6SMB170AHE3_A/I application, or P6SMB170AHE3_A/I equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, clamping performance under repetitive surge conditions, and thermal resistance (RθJA = 100 °C/W) for board-level thermal design.
Technical Context
This TVS diode operates as a voltage-clamping protection device triggered by reverse-biased avalanche breakdown. Its glass-passivated junction ensures stable leakage behavior and fast response time (<1 ns), while the low incremental surge resistance enables effective energy diversion during transient events such as inductive switching or ESD.
The device is rated for 150 °C maximum junction temperature and meets J-STD-020 MSL Level 1 moisture sensitivity with 260 °C lead-free reflow peak. The cathode band marking identifies polarity, and its unidirectional configuration supports DC-biased rail protection without forward conduction interference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 145 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe DC bias margin. |
| VBR (Breakdown Voltage) | 162–179 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on within spec across production lot. |
| VC (Clamping Voltage) | 234 V at 2.6 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy handling capability per JEDEC standard waveform; validates robustness against IEC 61000-4-5 surges. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; guides PCB copper area requirements for thermal management. |
| TJ max. | 150 °C - Maximum allowable junction temperature; sets upper limit for ambient + self-heating in sealed enclosures. |
| ID (Leakage at VWM) | 1.0 μA - Reverse leakage current at rated standoff voltage; negligible loading on high-impedance sensor or control lines. |
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 solderability standards. Cathode identified by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (cathode-biased during clamping) | Connected to lower-potential side of protected line; completes clamp path to ground or return rail. |
| Cathode | Avalanche breakdown terminal (marked with band) | Connected to higher-potential side (e.g., VBUS, signal line); controls directionality and clamping threshold. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Validated surge immunity for IEC 61000-4-5 Level 3/4 applications without derating on standard PCB layout. |
| AEC-Q101 qualified | Qualified for automotive powertrain and body electronics per stress test requirements including HTOL, TC, and HTRB. |
| Glass passivated junction | Stable VBR tolerance and low leakage drift over temperature and lifetime vs. epoxy-passivated alternatives. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without baking or special handling. |
| SMB (DO-214AA) footprint | Industry-standard 3.94 mm × 2.20 mm outline enabling drop-in replacement and automated placement in high-volume manufacturing. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and MCU I/O lines against back-EMF spikes from relay and solenoid switching in PLCs and HVAC controllers. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power rail and ground, activated only during overvoltage events. Use Value: Limits transient voltage to ≤234 V, preventing latch-up or oxide damage in 3.3 V/5 V logic interfaces and 12 V–24 V power rails. |
Use Scenario: Surge suppression on LIN bus lines and power inputs of door module ECUs exposed to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Standby protection element with <1 ns response, absorbing 600 W pulses without degradation over 1000+ cycles. Use Value: Maintains signal integrity during ISO 7637-2 Pulse 1/2a/5a tests while meeting AEC-Q101 reliability requirements. |
| Telecom Power Supplies | Industrial Sensor Signal Conditioning |
Use Scenario: Input-stage protection for AC/DC adapters and PoE injectors subject to lightning-induced surges on primary-side DC rails. IC Role / Device Role / Timing Role: Primary clamping device parallel to bulk capacitor, diverting surge current away from upstream rectifiers and controllers. Use Value: Withstands 2.6 A peak pulse at 145 V standoff, enabling compact designs without additional MOV or GDT stages. |
Use Scenario: Reverse-polarity and ESD protection for analog outputs (4–20 mA, 0–10 V) in pressure and temperature transmitters. IC Role / Device Role / Timing Role: Low-leakage (1.0 μA) unidirectional clamp ensuring no DC offset or loading on precision output circuits. Use Value: Preserves measurement accuracy while suppressing ±8 kV contact ESD per IEC 61000-4-2 via sub-234 V clamping. |
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-E3/52 | Same VWM (145 V), identical SMB package, but lower PPPM (400 W) and higher VC (250 V at 2.2 A) | Not AEC-Q101 qualified; suitable for commercial-grade telecom or consumer power supplies only | Select when cost sensitivity outweighs automotive qualification and higher clamping voltage is acceptable. |
| 1.5SMC170A | Higher package thermal resistance (RθJA ≈ 120 °C/W), same VWM/VBR range, but larger SMC (DO-214AB) footprint | Requires PCB redesign due to 7.11 mm × 6.22 mm outline; better for high-power industrial systems with heatsinking | Choose when board space allows larger package and higher long-duration surge margin is needed beyond 10/1000 μs. |
Compared with SMAJ170A-E3/52 and 1.5SMC170A, P6SMB170AHE3_A/I delivers superior automotive qualification, tighter clamping (234 V vs. 250 V), and optimized thermal performance in the smallest standardized SMB footprint - making it the preferred choice for space-constrained, AEC-Q101–mandated designs.
Availability
P6SMB170AHE3_A/I is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power supplies requiring stable component supply, AEC-Q101 compliance, and repeatable surge immunity performance.
Supply support for P6SMB170AHE3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P6SMB Series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where consistent clamping, low leakage, and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of P6SMB170AHE3_A/I at its rated peak pulse current?
The P6SMB170AHE3_A/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 transient events - critical for ensuring downstream ICs and MOSFETs remain within absolute maximum ratings.
Is P6SMB170AHE3_A/I qualified for automotive applications?
Yes, P6SMB170AHE3_A/I is AEC-Q101 qualified, as indicated by the "HE3" suffix and documented in Vishay's ordering information and mechanical data tables. It undergoes stress testing including high-temperature operating life (HTOL), temperature cycling (TC), and highly accelerated stress testing (HAST) to meet automotive reliability requirements for body electronics and power distribution modules.
What does the "_A/I" suffix in P6SMB170AHE3_A/I signify?
The "_A/I" suffix in P6SMB170AHE3_A/I denotes packaging configuration: "A" indicates the base part is unidirectional, "I" specifies 13-inch diameter plastic tape and reel delivery (3200 units per reel). This aligns with Vishay's ordering convention where "H" is used for 7-inch reels and "I" for 13-inch reels - both compatible with standard SMT pick-and-place equipment.
How does the thermal resistance of P6SMB170AHE3_A/I affect PCB layout?
P6SMB170AHE3_A/I 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 maintain TJ ≤ 150 °C under worst-case power dissipation, designers must allocate sufficient copper area and consider airflow or adjacent heat sources - undersized pads will cause premature thermal derating of surge capability.
Can P6SMB170AHE3_A/I be used in bidirectional configurations?
No, P6SMB170AHE3_A/I is a unidirectional TVS diode, as confirmed by its "A" suffix (not "CA") and the presence of a cathode band marking. Bidirectional variants in the same series use the "CA" suffix (e.g., P6SMB170CA) and lack polarity markings. Using P6SMB170AHE3_A/I in AC-coupled or symmetrical signal lines would result in forward conduction during negative half-cycles and potential failure.
P6SMB170AHE3_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:
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB170AHE3_A/I FAQ
1.How can I place an order for P6SMB170AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB170AHE3_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 P6SMB170AHE3_A/I reliable?
The price and inventory of P6SMB170AHE3_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 P6SMB170AHE3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB170AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB170AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB170AHE3_A/I?
P6SMB170AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB170AHE3_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 P6SMB170AHE3_A/I?
For technical support, including P6SMB170AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB170AHE3_A/I requirements.
6.How does Aetrix verify that P6SMB170AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB170AHE3_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 P6SMB170AHE3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB170AHE3_A/I?
All P6SMB170AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB170AHE3_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 P6SMB170AHE3_A/I part is unused and in its original packaging.
Return procedure for P6SMB170AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB170AHE3_A/I Tags
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