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Vishay General Semiconductor - Diodes Division P6SMB170AHM3/H
- Part No.:
- P6SMB170AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB170AHM3/H.pdf
- Description:
- TVS DIODE 145VWM 234VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,944
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Product details
Overview
P6SMB170AHM3/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 600 W peak pulse power (10/1000 μs). It clamps transients to 234 V at 2.6 A peak pulse current and is halogen-free, RoHS-compliant, and AEC-Q101 qualified for automotive applications.
For engineers reviewing the P6SMB170AHM3/H datasheet, P6SMB170AHM3/H pinout, P6SMB170AHM3/H application, or P6SMB170AHM3/H equivalent, key selection criteria include unidirectional clamping performance at 170 V, AEC-Q101 qualification status, SMB package thermal resistance (RθJA = 100 °C/W), and compliance with J-STD-020 MSL level 1 reflow profile.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, designed to protect downstream ICs and MOSFETs from inductive switching surges and lightning-induced transients. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at 145 V).
The device delivers 600 W peak pulse power under standardized 10/1000 μs waveform conditions, with clamping voltage tightly specified at 234 V (max) at IPPM = 2.6 A. Thermal design relies on 0.2" × 0.2" copper pads per terminal, supporting 5.0 W steady-state dissipation at TA = 50 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 145 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (Breakdown) | 162–179 V at IT = 1.0 mA - Confirmed avalanche onset range for reliable transient detection |
| VC (Clamping) | 234 V at IPPM = 2.6 A - Peak voltage seen by protected circuit during 600 W surge event |
| PPPM | 600 W (10/1000 μs) - Surge energy handling capacity compatible with IEC 61000-4-5 Level 4 |
| Package | SMB (DO-214AA) - Surface-mount footprint with 2.20 mm max height, MSL level 1, 260 °C peak reflow |
| Qualification | AEC-Q101 qualified - Validated for automotive underhood and infotainment system use |
| Leakage (ID) | ≤1.0 μA at 145 V - Minimal standby power loss and signal integrity impact in high-impedance lines |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, cathode-indicated by band. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); terminals are matte tin-plated, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to ground or low-side reference | Enables unidirectional clamping from cathode to anode; must be tied to lowest potential node in protected path |
| Cathode | Current exit point in forward bias; marked with band; connected to protected line | Accepts transient overvoltage from signal/power line; clamps to anode when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Supports robust protection against IEC 61000-4-5 combined wave surges without derating at room temperature |
| AEC-Q101 qualification (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock |
| Glass passivated junction | Ensures stable VBR tolerance and low parametric drift across 150 °C junction temperature range |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements |
| MSL level 1 (J-STD-020) | Allows unlimited floor life and single reflow at 260 °C peak, simplifying SMT production planning |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V/24 V power rails in automotive body control modules from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between battery rail and DC-DC input stage. Use Value: Limits transient voltage to ≤234 V, preventing damage to 36 V-rated buck controllers and enabling compliance with ISO 16750-2. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in PLC I/O modules exposed to field wiring surges. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 μA) clamping device on signal line, placed upstream of op-amp input. Use Value: Maintains signal fidelity during normal operation while suppressing >1 kV transients within 1 ns response time. |
| Telecom DC Power Input | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Shielding PoE-powered equipment inputs from induced surges on long Ethernet cable runs. IC Role / Device Role / Timing Role: Primary-level TVS on 48 V DC input, coordinated with secondary-side MOVs. Use Value: Clamps 600 W surges without thermal runaway, preserving 48 V rail stability and meeting EN 61000-4-5. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, blenders). IC Role / Device Role / Timing Role: Fast-response unidirectional suppressor across motor terminals, referenced to chassis ground. Use Value: Prevents MOSFET gate oxide failure and reduces EMI emissions by limiting dv/dt during commutation events. |
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 commercial-grade (non-AEC-Q101), SMA package (higher RθJA = 140 °C/W) | Lacks automotive qualification; less suitable for under-hood environments requiring extended temperature validation | Select when cost sensitivity outweighs AEC-Q101 requirement and thermal margin permits higher junction rise |
| 1.5SMC170AHE3_A/H | Same electrical specs, SMC (DO-214AB) package (larger footprint, lower RθJA = 60 °C/W), AEC-Q101 qualified | Better thermal performance but requires PCB area increase (~30% larger than SMB); not drop-in compatible | Choose when board space allows and higher surge repetition rate or sustained power dissipation is needed |
Compared with P6SMB170AHM3/H, SMAJ170A-E3/5B offers identical clamping performance at lower cost but lacks automotive qualification and thermal robustness, while 1.5SMC170AHE3_A/H provides superior thermal management in a larger footprint-making P6SMB170AHM3/H the optimal balance of AEC-Q101 compliance, SMB space efficiency, and 600 W surge capability.
Availability
P6SMB170AHM3/H is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom power inputs, and consumer appliance motor drives requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P6SMB170AHM3/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, and protection devices with emphasis on reliability, precision, and application-specific qualification.
The P6SMB Series was developed for high-reliability transient suppression in space-constrained, thermally demanding environments-including automotive, industrial, and telecom infrastructure-where consistent clamping and AEC-Q101 validation are mandatory.
FAQ
What is the maximum clamping voltage of the P6SMB170AHM3/H under standard test conditions?
The P6SMB170AHM3/H has a maximum clamping voltage (VC) of 234 V when subjected to its rated peak pulse current of 2.6 A using the 10/1000 μs waveform. This value is measured per JEDEC standards and reflects the highest voltage the protected circuit will experience during a defined 600 W transient event. The P6SMB170AHM3/H maintains this clamping performance across its operational temperature range up to TJ = 150 °C.
Is the P6SMB170AHM3/H suitable for automotive applications?
Yes, the P6SMB170AHM3/H is AEC-Q101 qualified, as confirmed by its HM3 suffix and Vishay's documentation. It undergoes stress testing for temperature cycling, humidity, mechanical shock, and high-temperature operating life-validating its use in automotive power distribution, body electronics, and infotainment systems. The P6SMB170AHM3/H meets MSL level 1 and supports reflow up to 260 °C, aligning with automotive PCB assembly requirements.
What does the "HM3" suffix indicate in P6SMB170AHM3/H?
The "HM3" suffix in P6SMB170AHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. The "H" specifies 7-inch tape-and-reel packaging (750 units per reel), and "M3" confirms compliance with JESD201 Class 2 whisker resistance and halogen-free material content per IEC 61249-2-21. This distinguishes it from commercial-grade variants like E3 or M3-only parts.
How does the SMB package of the P6SMB170AHM3/H compare thermally to larger packages like SMC?
The SMB (DO-214AA) package of the P6SMB170AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W on 0.2" × 0.2" copper pads-higher than the ~60 °C/W of the SMC (DO-214AB) package. This means the P6SMB170AHM3/H reaches higher junction temperatures under identical power dissipation. However, its 600 W peak rating remains valid for short-duration transients, and the compact size supports dense layouts where board area is constrained.
Can the P6SMB170AHM3/H be used in bidirectional configurations?
No, the P6SMB170AHM3/H is a unidirectional TVS diode, as indicated by its "A" suffix and cathode-band marking. Bidirectional operation requires a "CA" suffix (e.g., P6SMB170CA). Using the P6SMB170AHM3/H in reverse-biased configurations risks permanent breakdown due to lack of symmetrical avalanche structure. For AC or dual-polarity signal lines, select a verified bidirectional variant instead of repurposing the P6SMB170AHM3/H.
P6SMB170AHM3/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:
- 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:
- 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/H FAQ
1.How can I place an order for P6SMB170AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB170AHM3/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/H reliable?
The price and inventory of P6SMB170AHM3/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/H is usually 5 days.
3.What payment methods are accepted for P6SMB170AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB170AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB170AHM3/H?
P6SMB170AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB170AHM3/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/H?
For technical support, including P6SMB170AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB170AHM3/H requirements.
6.How does Aetrix verify that P6SMB170AHM3/H is sourced from the original manufacturer or authorized distributors?
All P6SMB170AHM3/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/H meets industry standards.
7.What is the process for return or replacement of P6SMB170AHM3/H?
All P6SMB170AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB170AHM3/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/H part is unused and in its original packaging.
Return procedure for P6SMB170AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB170AHM3/H Tags
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