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Vishay General Semiconductor - Diodes Division P6SMB180AHM3_B/I
- Part No.:
- P6SMB180AHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB180AHM3_B/I.pdf
- Description:
- 600W,180V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,501
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Product details
Overview
P6SMB180AHM3_B/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 180 V standoff voltage (VWM), 246 V clamping voltage (VC) at 2.4 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs). It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and lightning surges in industrial and automotive electronics.
For engineers reviewing the P6SMB180AHM3_B/I datasheet, P6SMB180AHM3_B/I pinout, P6SMB180AHM3_B/I application, or P6SMB180AHM3_B/I equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), clamping performance under standardized surge waveforms, and real-world protection use cases - all confirmed from Vishay's official P6SMB series documentation (Doc. #88370, Rev. 09-Jan-2024).
Technical Context
This TVS diode operates as a unidirectional avalanche clamp with glass-passivated junction, optimized for fast response (<1 ns) and low incremental surge resistance. Its 180 V stand-off voltage enables reliable blocking during normal operation while triggering conduction only above ~207 V breakdown (VBR min = 171 V, max = 189 V at 1 mA).
Designed for automated SMT placement on PCBs with 5.0 mm × 5.0 mm copper pads per terminal, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C) and is halogen-free, RoHS-compliant, and AEC-Q101 qualified - indicated by the "HM3_B/I" suffix denoting halogen-free, automotive-grade, and 13" tape-and-reel packaging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 180 V - maximum reverse voltage before significant leakage; ensures no conduction during normal 180 V DC or AC peak operation |
| VBR (Breakdown) | 171–189 V at 1 mA - precise avalanche onset range defining turn-on threshold under transient stress |
| VC (Clamping) | 246 V at IPPM = 2.4 A - maximum voltage seen by protected circuit during full 600 W surge event |
| PPPM | 600 W (10/1000 μs waveform) - peak transient energy absorption capability without failure |
| RθJA | 100 °C/W - junction-to-ambient thermal resistance; dictates derating above 25 °C ambient for sustained reliability |
| TJ max | +150 °C - maximum allowable junction temperature; supports operation in under-hood automotive environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, molded plastic case with matte tin-plated leads; polarity marked by cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode of internal PN junction | Connected to protected line; conducts surge current toward ground when reverse voltage exceeds VBR |
| Anode | Cathode of internal PN junction | Typically tied to system ground or low-impedance return path; completes clamping current loop |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Withstands high-energy transients common in motor drives and power supply input stages without degradation |
| AEC-Q101 qualification (HM3_B/I) | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Glass passivated chip junction | Ensures stable VBR over time and temperature, with low leakage (<1 μA at VWM) and long-term reliability |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without pre-baking; compatible with high-volume automated assembly |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for industrial and automotive OEM supply chains |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 12 V/24 V automotive power rails from load-dump and inductive kickback events. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and downstream DC-DC converter input. Use Value: Limits transient voltage to ≤246 V, preventing damage to 36 V-rated input stages while surviving 600 W surges. |
Use Scenario: Shielding analog output lines of pressure or temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance TVS connected between signal line and ground near sensor connector. Use Value: Clamps ESD and cable discharge events to <246 V within nanoseconds, preserving signal integrity and ADC accuracy. |
| Telecom Interface Surge Protection | MOSFET Gate Driver Transient Suppression |
Use Scenario: Safeguarding RS-485 transceivers in outdoor telecom base stations exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; this unidirectional part used on power-supply side of isolated interface. Use Value: Absorbs repetitive 10/1000 μs surges up to 600 W without parameter drift, maintaining communication uptime. |
Use Scenario: Preventing gate oxide rupture in high-side N-channel MOSFETs driven by PWM controllers. IC Role / Device Role / Timing Role: TVS placed between gate and source to clamp Miller-induced voltage spikes during switching. Use Value: Responds in <1 ns to suppress >200 V spikes, enabling robust 100 kHz+ switching without gate driver failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ180A-E3/5B | Same VWM (180 V), lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 140 °C/W) | Limited to lower-energy transients; less suitable for automotive load-dump where 600 W is required | Select if board space is constrained and surge energy is ≤400 W; verify thermal margin at elevated ambient |
| 1.5SMC180AHE3_A/H | Same VWM (180 V), same PPPM (600 W), but SMC (DO-214AB) package - larger footprint, lower RθJA (60 °C/W) | Better thermal performance for continuous surge duty; requires more PCB area than SMB | Choose when thermal management is critical and layout allows larger 7.1 mm × 6.2 mm SMC footprint |
Compared with P6SMB180AHM3_B/I, SMAJ180A-E3/5B trades power handling for compactness, while 1.5SMC180AHE3_A/H offers superior thermal dissipation at the cost of board area - making P6SMB180AHM3_B/I the optimal balance of automotive qualification, 600 W capability, and SMB-size integration.
Availability
P6SMB180AHM3_B/I is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom surge suppression requiring stable component supply across extended production lifecycles.
Supply support for P6SMB180AHM3_B/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, rectifiers, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for AEC-Q101 compliance, robust surge handling, and seamless SMT integration.
FAQ
What is the clamping voltage of P6SMB180AHM3_B/I at its rated peak pulse current?
The P6SMB180AHM3_B/I has a maximum clamping voltage (VC) of 246 V at its specified peak pulse current (IPPM) of 2.4 A, measured using the standardized 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuits during worst-case transient events, ensuring downstream components rated for ≥250 V withstand stress without failure. The P6SMB180AHM3_B/I maintains this clamping performance across its qualified operating temperature range.
Is P6SMB180AHM3_B/I suitable for automotive applications?
Yes, P6SMB180AHM3_B/I is AEC-Q101 qualified, as confirmed by its "HM3_B/I" suffix - indicating halogen-free, RoHS-compliant, and automotive-grade reliability testing. It is designed for under-hood and chassis-mounted systems subject to temperature cycling, vibration, and high-energy transients like load dump. The P6SMB180AHM3_B/I meets all stress-test requirements defined in AEC-Q101, including HTGB, H3TRB, and ESD (HBM ≥8 kV).
What does the "_B/I" suffix mean in P6SMB180AHM3_B/I?
The "_B" denotes AEC-Q101 qualification for the P6SMB180AHM3_B/I series (applicable to 6.8 V–220 V variants), while "_I" specifies 13-inch diameter tape-and-reel packaging containing 3200 units per reel. The "HM3" portion confirms halogen-free, RoHS-compliant construction. Together, P6SMB180AHM3_B/I identifies a fully automotive-qualified, environmentally compliant, high-volume production-ready TVS diode.
How does P6SMB180AHM3_B/I compare to bidirectional TVS diodes?
P6SMB180AHM3_B/I is unidirectional and intended for DC-coupled protection where polarity is fixed - such as 180 V power rails or gate drive lines. Unlike bidirectional variants (e.g., P6SMB180CA), it blocks forward current beyond ~1.2 V (VF ≈ 3.5 V at 50 A), making it unsuitable for AC signal paths. Its design prioritizes tighter VBR tolerance and lower leakage in one direction, whereas bidirectional types offer symmetrical clamping but higher capacitance and leakage at VWM.
What is the thermal resistance of P6SMB180AHM3_B/I, and how does it affect layout?
P6SMB180AHM3_B/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. This value assumes minimal PCB copper; increasing pad size or adding thermal vias reduces effective RθJA. For continuous surge duty or high ambient temperatures (>70 °C), derating curves in Fig. 2 of Vishay Doc. #88370 must be applied - meaning the P6SMB180AHM3_B/I's safe operating area shrinks proportionally as ambient rises.
P6SMB180AHM3_B/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 154V
- Voltage - Breakdown (Min):
- 171V
- Voltage - Clamping (Max) @ Ipp:
- 246V
- Current - Peak Pulse (10/1000µs):
- 2.4A
- 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)
P6SMB180AHM3_B/I FAQ
1.How can I place an order for P6SMB180AHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB180AHM3_B/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 P6SMB180AHM3_B/I reliable?
The price and inventory of P6SMB180AHM3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB180AHM3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB180AHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB180AHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB180AHM3_B/I?
P6SMB180AHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB180AHM3_B/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 P6SMB180AHM3_B/I?
For technical support, including P6SMB180AHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB180AHM3_B/I requirements.
6.How does Aetrix verify that P6SMB180AHM3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB180AHM3_B/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 P6SMB180AHM3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB180AHM3_B/I?
All P6SMB180AHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB180AHM3_B/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 P6SMB180AHM3_B/I part is unused and in its original packaging.
Return procedure for P6SMB180AHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB180AHM3_B/I Tags
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