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Vishay General Semiconductor - Diodes Division P6SMB170AHM3_B/H
- Part No.:
- P6SMB170AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB170AHM3_B/H.pdf
- Description:
- 600W,170V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,440
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Product details
Overview
P6SMB170AHM3_B/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 minimum breakdown voltage (VBR), and 600 W peak pulse power (10/1000 μs). It provides clamping protection for automotive-grade power rails and signal lines in industrial sensor interfaces and DC power supplies.
For engineers reviewing the P6SMB170AHM3_B/H datasheet, P6SMB170AHM3_B/H pinout, P6SMB170AHM3_B/H application, or P6SMB170AHM3_B/H equivalent, key selection criteria include AEC-Q101 qualification, 234 V maximum clamping voltage at 2.6 A IPPM, low thermal resistance (RθJL = 20 °C/W), and halogen-free RoHS compliance per HM3 suffix.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, designed to shunt transient energy away from sensitive 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 moisture sensitivity, the P6SMB170AHM3_B/H supports reflow soldering up to 260 °C peak. It delivers 234 V clamping voltage at 2.6 A peak pulse current under 10/1000 μs waveform, with 0.108 %/°C temperature coefficient of VBR.
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 onset range ensuring reliable turn-on margin |
| VC (Clamping Voltage) | 234 V at 2.6 A IPPM - Peak voltage seen by protected circuit during worst-case surge |
| PPPM (Peak Pulse Power) | 600 W (10/1000 μs) - Sustains high-energy transients without failure under defined waveform |
| ID (Reverse Leakage) | 1.0 μA at 145 V - Minimal standby power loss and signal integrity impact |
| TJ max. | 150 °C - Enables operation in under-hood automotive and industrial ambient environments |
| RθJL | 20 °C/W - Low junction-to-lead thermal resistance supports power dissipation in compact layouts |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Cathode indicated by band marking on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or low-impedance reference plane to complete clamping loop |
| Cathode | Protected line connection point | Connected to input rail or signal line requiring overvoltage protection |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Halogen-free & RoHS-compliant (HM3) | Meets IEC 61249-2-21 and JEDEC J-STD-20E environmental requirements |
| 600 W peak pulse power (10/1000 μs) | Withstands ISO 7637-2 Pulse 1/2a/5a surges without degradation in automotive systems |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free SMT assembly processes without preconditioning |
| Glass passivated junction | Ensures <1 μA leakage stability across -65 °C to +150 °C operating range |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs against load dump and alternator transients per ISO 16750-2. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power input and upstream fuse or DC-DC converter. Use Value: Limits transient voltage to ≤234 V, preventing damage to MCU power pins and internal LDOs rated ≤28 V. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA, 0–10 V) of pressure/temperature sensors in factory automation. IC Role / Device Role / Timing Role: Standoff-clamp protector on signal line, positioned adjacent to connector entry point. Use Value: Maintains signal fidelity with <1 μA leakage at 145 V, while clamping ESD events (IEC 61000-4-2 ±15 kV air) below ADC input limits. |
| Telecom DC Power Input Protection | Consumer Device USB Power Line Protection |
Use Scenario: Shielding PoE-powered equipment (e.g., IP cameras) from induced surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side DC bus after isolation transformer and rectifier. Use Value: Absorbs 600 W surge energy without thermal runaway, enabling compliance with IEC 61000-4-5 Level 4 (4 kV line-earth). |
Use Scenario: Protecting USB-C VBUS line in portable monitors or docking stations against hot-plug transients and adapter faults. IC Role / Device Role / Timing Role: Unidirectional TVS placed between USB-C receptacle and power delivery controller. Use Value: Clamps 100 V overshoot events to 234 V within <1 ns, preserving USB PD negotiation integrity and preventing port IC latch-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ170AHE3_A/H | Same VWM/VBR/VC specs but SMA package (DO-214AC); RθJA = 110 °C/W vs. 100 °C/W for P6SMB170AHM3_B/H | Larger footprint (SMA vs. SMB); lower power density; not AEC-Q101 qualified | Select when board space allows larger pad layout and automotive qualification is not required |
| 1.5SMC170A-H | Same electrical ratings but SMC (DO-214AB) package; higher IPPM (2.8 A vs. 2.6 A); RθJL = 15 °C/W | Higher thermal performance but 30% larger footprint; commercial grade only (no AEC-Q101) | Prefer for non-automotive high-reliability industrial use where PCB area permits larger package |
Compared with SMAJ170AHE3_A/H and 1.5SMC170A-H, the P6SMB170AHM3_B/H offers AEC-Q101 qualification, halogen-free construction, and optimized SMB footprint for dense automotive PCBs-making it the only option among the three validated for under-hood deployment with full traceable sourcing.
Availability
P6SMB170AHM3_B/H is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom power supply designs requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant transient protection.
Supply support for P6SMB170AHM3_B/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P6SMB Series is part of Vishay's TRANSZORB® TVS platform, engineered for robust transient suppression in automotive, industrial, and communications infrastructure where high pulse power and AEC-Q101 validation are mandatory.
FAQ
What is the maximum clamping voltage of the P6SMB170AHM3_B/H under standard test conditions?
The P6SMB170AHM3_B/H has a maximum clamping voltage (VC) of 234 V at 2.6 A peak pulse current (IPPM) using the 10/1000 μs waveform. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during transient events. The P6SMB170AHM3_B/H maintains this clamping performance across its full operating temperature range (-65 °C to +150 °C), making it suitable for harsh-environment applications.
Is the P6SMB170AHM3_B/H qualified for automotive applications?
Yes, the P6SMB170AHM3_B/H is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's P6SMB series datasheet (Document Number: 88370, Revision: 09-Jan-2024). The "_B" in the part number denotes AEC-Q101 qualification for devices from P6SMB6.8A to P6SMB220A. This qualification covers stress tests including HTRB, HTGB, TCT, and ESD, validating suitability for automotive powertrain, body, and ADAS systems.
What does the "HM3" suffix indicate in P6SMB170AHM3_B/H?
The "HM3" suffix in P6SMB170AHM3_B/H specifies halogen-free, RoHS-compliant construction meeting JEDEC J-STD-20E and IEC 61249-2-21 requirements. It also confirms compliance with JESD 201 Class 2 whisker testing and matte tin plating per J-STD-002. Unlike "E3" variants, HM3 parts eliminate brominated flame retardants and chlorine-based compounds, supporting environmentally regulated automotive and industrial supply chains.
What is the thermal resistance from junction to lead (RθJL) for the P6SMB170AHM3_B/H?
The P6SMB170AHM3_B/H has a typical thermal resistance from junction to lead (RθJL) of 20 °C/W, as specified in the Thermal Characteristics table of the Vishay datasheet. This low value enables efficient heat transfer from the silicon die to the PCB copper pads through the SMB package leads, supporting reliable 600 W pulse handling when mounted on recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads. The P6SMB170AHM3_B/H leverages this to sustain repeated surge events without thermal runaway.
How does the P6SMB170AHM3_B/H differ from the P6SMB170AHE3_B/H variant?
The P6SMB170AHM3_B/H differs from P6SMB170AHE3_B/H primarily in material composition: HM3 denotes halogen-free construction, while HE3 is RoHS-compliant but may contain halogenated flame retardants. Both share identical electrical specs (VWM = 145 V, VC = 234 V), AEC-Q101 qualification ("_B"), and SMB packaging. The P6SMB170AHM3_B/H meets stricter environmental mandates such as China RoHS II Annex III and EU ELV, making it preferred for Tier 1 automotive BOMs requiring full halogen-free certification.
P6SMB170AHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Bulk
- 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)
P6SMB170AHM3_B/H FAQ
1.How can I place an order for P6SMB170AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB170AHM3_B/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 P6SMB170AHM3_B/H reliable?
The price and inventory of P6SMB170AHM3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB170AHM3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB170AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB170AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB170AHM3_B/H?
P6SMB170AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB170AHM3_B/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 P6SMB170AHM3_B/H?
For technical support, including P6SMB170AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB170AHM3_B/H requirements.
6.How does Aetrix verify that P6SMB170AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB170AHM3_B/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 P6SMB170AHM3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB170AHM3_B/H?
All P6SMB170AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB170AHM3_B/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 P6SMB170AHM3_B/H part is unused and in its original packaging.
Return procedure for P6SMB170AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB170AHM3_B/H Tags
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