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Vishay General Semiconductor - Diodes Division P6SMB170AHE3_A/H
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- Part No.:
- P6SMB170AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB170AHE3_A/H.pdf
- Description:
- TVS DIODE 145VWM 234VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,871
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Product details
Overview
P6SMB170AHE3_A/H 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 234 V clamping voltage (VC) at 2.6 A peak pulse current (IPPM), designed to protect MOSFETs, ICs, and sensor signal lines against inductive switching transients and lightning surges in industrial and automotive electronics.
For engineers reviewing the P6SMB170AHE3_A/H datasheet, P6SMB170AHE3_A/H pinout, P6SMB170AHE3_A/H application, or P6SMB170AHE3_A/H equivalent, this device delivers AEC-Q101 qualification, 600 W peak pulse power (10/1000 μs), low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for high-reliability automotive ECUs and industrial power supplies requiring robust overvoltage immunity.
Technical Context
The P6SMB170AHE3_A/H operates as a unidirectional clamping TVS diode with avalanche breakdown behavior, triggered when reverse voltage exceeds its 170 V stand-off threshold. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ps), enabling protection of sensitive downstream circuitry before transient energy propagates.
Thermally, it features RθJA = 100 °C/W and RθJL = 20 °C/W, supporting operation up to TJ = +150 °C. The cathode-band-marked SMB package allows automated placement and meets UL 94 V-0 flammability rating, with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 170 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 162–179 V at IT = 1.0 mA - Voltage at which device enters avalanche conduction; tight tolerance ensures predictable trigger point. |
| VC (Clamping Voltage) | 234 V at IPPM = 2.6 A - Peak voltage seen by protected circuit during 10/1000 μs transient; limits stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Maximum transient energy absorption capability under standardized 10/1000 μs waveform; enables robust surge handling. |
| 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 junction temperature rating 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, cathode-band marked, dimensions 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), UL 94 V-0 compliant molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to system ground or lower-potential rail; defines polarity for unidirectional clamping action. |
| Cathode | Clamping output / Surge sink node | Connected to protected line (e.g., power rail or signal); conducts transient current to ground when V > VWM. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV line-to-line) without derating in standard PCB layouts. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage across temperature and humidity stress, critical for automotive life-cycle requirements. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control, body electronics, and ADAS sensors requiring zero-failure field performance. |
| MSL Level 1 (260 °C peak reflow) | Supports single-pass lead-free reflow assembly without moisture-related popcorn failure or delamination. |
| Low clamping ratio (VC/VBR ≈ 1.36) | Minimizes overvoltage overshoot during clamping, reducing risk of latch-up or gate oxide damage in protected MOSFETs and ICs. |
Applications
| Automotive Engine Control Unit (ECU) Power Rail Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Suppresses load-dump transients (up to 35 V, 100 ms) and inductive kickback from fuel injector solenoids in 12 V automotive systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and LDO input to clamp surges before they reach voltage regulators and microcontrollers. Use Value: Prevents regulator latch-up and MCU reset events during cold-cranking and alternator load dump, meeting ISO 7637-2 Pulse 5a/b requirements. |
Use Scenario: Shields 24 V digital input channels in programmable logic controllers from field-wiring induced surges and electrostatic discharge. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected between input terminal and ground, absorbing fast transients before optocoupler or Schmitt-trigger input stage. Use Value: Maintains input logic state integrity during factory floor ESD events and motor drive coupling noise, extending mean time between failures (MTBF). |
| Telecom Base Station DC Power Interface | Consumer Appliance Motor Driver Board Protection |
Use Scenario: Guards -48 V DC power feed lines in cellular base stations against lightning-induced surges entering via outdoor cabling. IC Role / Device Role / Timing Role: Primary-level unidirectional TVS on DC input bus, coordinated with secondary MOVs and gas discharge tubes for staged protection. Use Value: Limits let-through voltage to <250 V during 10/1000 μs surges, preventing damage to DC-DC converters and backplane supervisors. |
Use Scenario: Protects half-bridge gate drivers and current-sense amplifiers in washing machine motor control boards from commutation spikes. IC Role / Device Role / Timing Role: Local TVS on each high-side and low-side gate drive trace, clamping shoot-through-inducing voltage spikes during PWM switching. Use Value: Reduces false triggering of overvoltage protection circuits and prevents gate oxide degradation in 600 V MOSFETs. |
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 (170 V), but lower PPPM (400 W), higher VC (274 V), and non-AEC-Q101 commercial grade. | Limited to non-automotive industrial use where surge severity is lower and qualification not mandated. | Select when cost sensitivity outweighs automotive qualification and 600 W surge headroom is unnecessary. |
| 1.5SMC170A | Same VWM and VC, but larger SMC (DO-214AB) package (7.11 mm × 6.22 mm), higher thermal mass, RθJA = 50 °C/W. | Better thermal performance in high-duty-cycle surge environments; requires larger PCB footprint. | Choose when board space permits and sustained surge repetition rate exceeds P6SMB170AHE3_A/H's 0.01% duty cycle limit. |
Compared with SMAJ170A-E3/52 and 1.5SMC170A, P6SMB170AHE3_A/H uniquely balances AEC-Q101 compliance, 600 W surge capacity, and compact SMB footprint - making it optimal for space-constrained automotive modules needing validated reliability without thermal derating penalties.
Availability
P6SMB170AHE3_A/H is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC manufacturing, and telecom power interface development requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P6SMB170AHE3_A/H 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, TVS devices, and power MOSFETs with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-energy transient suppression in automotive, industrial, and telecom systems, engineered for AEC-Q101 compliance, low clamping ratios, and compatibility with automated SMT assembly processes.
FAQ
What is the clamping voltage of P6SMB170AHE3_A/H at its rated peak pulse current?
The P6SMB170AHE3_A/H has a maximum clamping voltage (VC) of 234 V at a peak pulse current (IPPM) of 2.6 A under the standard 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet 88370 and reflects the actual voltage imposed on protected circuitry during worst-case transient events - a key parameter for ensuring downstream ICs remain within absolute maximum ratings.
Is P6SMB170AHE3_A/H qualified for automotive applications?
Yes, P6SMB170AHE3_A/H is AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in Vishay's P6SMB series datasheet (Rev. 09-Jan-2024). It undergoes stress testing including temperature cycling, high-temperature reverse bias (HTRB), and ESD per AEC-Q101 requirements - making P6SMB170AHE3_A/H suitable for under-hood and body-control module applications in passenger vehicles and commercial vehicles.
What does the "_A/H" suffix in P6SMB170AHE3_A/H indicate?
The "_A/H" suffix in P6SMB170AHE3_A/H denotes packaging configuration: "A" indicates the device is unidirectional, and "H" specifies 7-inch plastic tape-and-reel delivery with 750 units per reel. This aligns with Vishay's ordering information table (page 3 of datasheet 88370), where "H" corresponds to the standard reel size for SMB-packaged parts.
Can P6SMB170AHE3_A/H be used in bidirectional configurations?
No, P6SMB170AHE3_A/H is strictly unidirectional, as indicated by the "A" in its part number and absence of "CA" suffix. Bidirectional variants (e.g., P6SMB170CA) exist in the same family but feature symmetric breakdown in both polarities. Using P6SMB170AHE3_A/H in reverse-biased AC signal paths would result in forward conduction and potential failure - always verify polarity marking (cathode band) during layout.
What is the maximum junction temperature rating for P6SMB170AHE3_A/H?
The P6SMB170AHE3_A/H has a maximum junction temperature (TJ max.) of +150 °C, per the Absolute Maximum Ratings table in Vishay's datasheet 88370. This rating enables reliable operation in high-ambient environments such as engine compartments and enclosed industrial enclosures, provided PCB copper pad area (minimum 5.0 mm × 5.0 mm per terminal) and airflow meet thermal design guidelines.
P6SMB170AHE3_A/H 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/H FAQ
1.How can I place an order for P6SMB170AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB170AHE3_A/H 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/H reliable?
The price and inventory of P6SMB170AHE3_A/H 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/H is usually 5 days.
3.What payment methods are accepted for P6SMB170AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB170AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB170AHE3_A/H?
P6SMB170AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB170AHE3_A/H 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/H?
For technical support, including P6SMB170AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB170AHE3_A/H requirements.
6.How does Aetrix verify that P6SMB170AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB170AHE3_A/H 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/H meets industry standards.
7.What is the process for return or replacement of P6SMB170AHE3_A/H?
All P6SMB170AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB170AHE3_A/H, 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/H part is unused and in its original packaging.
Return procedure for P6SMB170AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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