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Vishay General Semiconductor - Diodes Division P6SMB170AHE3/5B
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- Part No.:
- P6SMB170AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB170AHE3/5B.pdf
- Description:
- TVS DIODE 145VWM 234VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB170AHE3/5B 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 against inductive switching transients and ESD.
For engineers reviewing the P6SMB170AHE3/5B datasheet, P6SMB170AHE3/5B pinout, P6SMB170AHE3/5B application, or P6SMB170AHE3/5B 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 automated SMT assembly.
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 by entering avalanche conduction when reverse voltage exceeds VBR (162–179 V). Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
The device delivers 600 W peak pulse power per 10/1000 μs waveform at TA = 25 °C, derating linearly above 25 °C per Fig. 2, with a maximum junction temperature of +150 °C and thermal resistance of 100 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads. It meets J-STD-020 MSL Level 1 and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 145 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC/AC blocking range. |
| VBR (Breakdown Voltage) | 162–179 V at IT = 1 mA - Voltage at which device enters controlled avalanche; tight tolerance supports precise overvoltage thresholding. |
| VC (Clamping Voltage) | 234 V at IPPM = 2.6 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines actual stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Surge energy handling capacity under standardized 10/1000 μs waveform; enables robust protection against IEC 61000-4-5 Level 3/4 surges. |
| ID (Reverse Leakage) | 1.0 μA at VWM - Ultra-low leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ max. | +150 °C - Maximum allowable junction temperature; supports operation in under-hood automotive and industrial environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with UL 94 V-0 flammability rating and matte tin-plated leads solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse surge return path | Connected to system ground or lower-potential rail; completes clamping loop during transient events. |
| Cathode | Avalanche conduction terminal / Surge shunt node | Marked with band; connected to protected line; conducts reverse surge current into anode during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables single-device protection against severe lightning-induced surges and inductive kickback in 24 V/48 V systems. |
| Glass passivated chip junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments. |
| AEC-Q101 qualified (HE3 suffix) | Validates suitability for automotive powertrain, body control, and ADAS modules requiring zero-failure field performance. |
| MSL Level 1, 260 °C reflow compatible | Supports lead-free reflow soldering without pre-baking; eliminates moisture-related popcorning risk in high-volume SMT lines. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (<1 ns rise time), improving protection margin for CMOS ICs. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V microcontroller GPIOs and CAN transceiver bias rails from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between signal line and chassis ground to limit transient excursions below IC absolute maximum ratings. Use Value: Prevents latch-up and gate oxide damage in MCU I/O cells during ISO 7637-2 Pulse 5a (load dump) events up to 60 V/100 ms. |
Use Scenario: Shielding 24 V digital input channels of programmable logic controllers from relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Standoff-clamp TVS mounted at connector interface to absorb inductive energy before it reaches optocoupler or Schmitt trigger inputs. Use Value: Maintains signal integrity across 10 kV ESD (IEC 61000-4-2) and 2 kV surge (IEC 61000-4-5) while adding <0.5 pF parasitic capacitance. |
| Telecom Base Station Sensor Interface | Consumer Appliance Motor Driver Feedback Line |
Use Scenario: Safeguarding analog sensor outputs (e.g., temperature, pressure) in outdoor telecom cabinets exposed to lightning-induced surges on RS-485 or 4–20 mA loops. IC Role / Device Role / Timing Role: Low-leakage TVS placed directly at sensor amplifier output to clamp transients without affecting DC accuracy or offset. Use Value: Limits clamping voltage to ≤234 V while maintaining <1 μA leakage at 145 V, preserving 16-bit ADC resolution in precision measurement paths. |
Use Scenario: Protecting hall-effect sensor feedback lines in BLDC motor drives from commutation spikes and back-EMF coupling. IC Role / Device Role / Timing Role: Fast-response TVS integrated into motor control PCB near sensor connector to suppress sub-100 ns ringing. Use Value: Achieves <1 ns response time and 234 V clamping to prevent false triggering of rotor position detection logic during 40 V/μs edge transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ170A-E3/5B | Same VWM/VBR/VC specs but SMA package (DO-214AC); 30% smaller footprint, higher RθJA (150 °C/W). | Better suited for space-constrained consumer PCBs; less thermally robust under sustained surge duty cycles. | Select when board area is critical and surge repetition rate is low (<0.01%). |
| 1.5SMC170AHE3/A | Same electrical specs but SMC (DO-214AB) package; 2× larger pad area, lower RθJA (75 °C/W), higher IPPM (2.9 A). | Preferred for high-reliability industrial power supplies where thermal margin and surge repetition matter more than size. | Select when operating ambient exceeds 70 °C or surge events occur >10×/hour. |
Compared with P6SMB170AHE3/5B, SMAJ170A-E3/5B trades thermal performance for compactness, while 1.5SMC170AHE3/A offers superior heat dissipation and surge endurance at the cost of PCB real estate-making P6SMB170AHE3/5B the balanced choice for AEC-Q101 automotive and mid-duty industrial use.
Availability
P6SMB170AHE3/5B is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, telecom sensor interfaces, and appliance motor control systems requiring stable component supply with AEC-Q101 validation and full traceability.
Supply support for P6SMB170AHE3/5B 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 optimization.
The P6SMB Series targets high-energy transient suppression in automotive, industrial, and telecom infrastructure, engineered for robustness under repetitive surge stress and compatibility with automated SMT manufacturing.
FAQ
What is the clamping voltage of P6SMB170AHE3/5B at its rated peak pulse current?
The P6SMB170AHE3/5B has a maximum clamping voltage (VC) of 234 V at its specified peak pulse current (IPPM) of 2.6 A under the 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet 88370 and defines the upper voltage limit imposed on protected circuitry during a standardized surge event. The P6SMB170AHE3/5B maintains this clamping performance across its qualified operating temperature range.
Is P6SMB170AHE3/5B suitable for automotive applications?
Yes, P6SMB170AHE3/5B is AEC-Q101 qualified (denoted by the HE3 suffix), meaning it has passed rigorous stress tests including temperature cycling, high-temperature reverse bias, and ESD per automotive reliability standards. It is explicitly recommended for body electronics, infotainment power rails, and sensor interfaces in passenger vehicles and commercial vehicles where load dump and jump-start transients occur.
What does the "5B" suffix indicate in P6SMB170AHE3/5B?
The "5B" suffix in P6SMB170AHE3/5B specifies the packaging configuration: 13-inch diameter plastic tape and reel containing 3200 units. This format is optimized for high-volume SMT placement equipment and aligns with IPC-7351 land pattern recommendations for the SMB (DO-214AA) package. The "HE3" portion confirms RoHS compliance and AEC-Q101 qualification.
How does P6SMB170AHE3/5B differ from bidirectional variants like P6SMB170CAHE3/5B?
P6SMB170AHE3/5B is unidirectional and features a cathode band for polarity-sensitive placement, while P6SMB170CAHE3/5B is bidirectional with no polarity marking and symmetric clamping in both directions. The unidirectional P6SMB170AHE3/5B offers lower leakage (<1 μA at 145 V) and is preferred for DC-biased lines like power rails; the bidirectional version suits AC-coupled or floating signal paths such as data lines.
What is the thermal resistance profile of P6SMB170AHE3/5B?
P6SMB170AHE3/5B has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W and junction-to-ambient resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads per JEDEC standards. This allows reliable operation at full 600 W pulse power only at TA ≤ 25 °C; derating is required above that temperature per Figure 2 in datasheet 88370. The P6SMB170AHE3/5B's low RθJL supports efficient heat transfer to PCB copper planes.
P6SMB170AHE3/5B 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:
- 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)
P6SMB170AHE3/5B FAQ
1.How can I place an order for P6SMB170AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB170AHE3/5B 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 P6SMB170AHE3/5B reliable?
The price and inventory of P6SMB170AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB170AHE3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB170AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB170AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB170AHE3/5B?
P6SMB170AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB170AHE3/5B 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 P6SMB170AHE3/5B?
For technical support, including P6SMB170AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB170AHE3/5B requirements.
6.How does Aetrix verify that P6SMB170AHE3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB170AHE3/5B 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 P6SMB170AHE3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB170AHE3/5B?
All P6SMB170AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB170AHE3/5B, 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 P6SMB170AHE3/5B part is unused and in its original packaging.
Return procedure for P6SMB170AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB170AHE3/5B Tags
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