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Vishay General Semiconductor - Diodes Division P6SMB180CAHM3_B/I
- Part No.:
- P6SMB180CAHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB180CAHM3_B/I.pdf
- Description:
- 600W,180V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,107
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Product details
Overview
P6SMB180CAHM3_B/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on signal or power lines. It features a 154 V standoff voltage (VWM), 171–189 V breakdown voltage (VBR) at 1 mA, 246 V maximum clamping voltage (VC) at 2.4 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the P6SMB180CAHM3_B/I datasheet, P6SMB180CAHM3_B/I pinout, P6SMB180CAHM3_B/I application, or P6SMB180CAHM3_B/I equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, SMB (DO-214AA) 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 voltage-clamping protection device across two terminals with symmetrical reverse/forward conduction behavior. Its glass-passivated junction enables fast response time (<1 ns), low incremental surge resistance, and stable clamping under repetitive 10/1000 μs transients at 0.01% duty cycle.
The device is rated for -65 °C to +150 °C operating junction temperature, supports 100 A non-repetitive forward surge current (IFSM), and meets halogen-free, RoHS-compliant, and AEC-Q101 qualified requirements per HM3_B/I suffix designation - confirming suitability for automotive-grade embedded electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 154 V - maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 171–189 V at 1 mA - precise voltage at which avalanche conduction initiates; ensures predictable turn-on during overvoltage events |
| VC (Clamping Voltage) | 246 V at IPPM = 2.4 A - peak voltage seen by protected circuit during 10/1000 μs transient; directly limits stress on downstream ICs |
| PPPM (Peak Pulse Power) | 600 W - energy-handling capacity under standardized surge waveform; validates robustness against IEC 61000-4-5 Level 3/4 threats |
| ID (Reverse Leakage) | 1.0 μA max at VWM - minimal standby current; preserves signal integrity and battery life in always-on interfaces |
| Package | SMB (DO-214AA) - surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with automated pick-and-place and reflow soldering |
| AEC-Q101 Qualified | Yes - validated for automotive applications including engine control modules, ADAS sensors, and body electronics per HM3_B/I suffix |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; polarity-unmarked for bidirectional operation; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (bidirectional) | Accepts surge current in either polarity; no cathode marking required due to symmetric construction |
| Cathode | Transient current exit point (bidirectional) | Completes low-impedance path to ground or return rail during both positive and negative transients |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping symmetry | Identical VBR and VC performance in both polarities - eliminates need for polarity-aware layout in differential or AC-coupled lines |
| AEC-Q101 qualification (HM3_B/I) | Validated reliability for automotive underhood and cabin environments - includes temperature cycling, HTRB, and ESD testing |
| 600 W peak pulse power (10/1000 μs) | Handles high-energy surges without degradation - supports IEC 61000-4-5 compliance up to 4 kV line-to-ground |
| MSL Level 1 moisture sensitivity | No dry-pack or bake requirement prior to reflow - simplifies manufacturing and reduces assembly cost |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JEDEC J-STD-20 - supports green procurement and end-of-life recycling mandates |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in 12 V/24 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across signal pair or supply rail to limit transient excursions below IC absolute maximum ratings. Use Value: Prevents latch-up or permanent damage to automotive-grade microcontrollers and analog front-ends during ISO 7637-2 pulse 1/2a/5a events. |
Use Scenario: Safeguarding digital input/output channels of programmable logic controllers against ESD and field-wiring induced surges in factory automation environments. IC Role / Device Role / Timing Role: Parallel-connected TVS on each I/O line to shunt transient energy before it reaches isolation barriers or FPGA GPIO banks. Use Value: Enables >15 kV contact ESD immunity and sustained operation under repeated 1 kV/500 A surge pulses per IEC 61000-4-4. |
| Telecom Line Interface Protection | Consumer Appliance Motor Control |
|
Use Scenario: Shielding RS-485/RS-232 transceivers and Ethernet PHYs from lightning-induced surges on outdoor cabling in building management systems. IC Role / Device Role / Timing Role: Primary clamping element upstream of common-mode chokes and secondary TVS arrays to distribute surge energy. Use Value: Maintains signal integrity while limiting clamped voltage to <250 V - within safe margin for 3.3 V/5 V logic-level transceivers. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines, HVAC blowers, and power tools. IC Role / Device Role / Timing Role: Across-motor terminals to absorb inductive kickback during MOSFET/FET switching transitions. Use Value: Reduces radiated emissions and prevents gate driver failure by clamping flyback voltages to ≤246 V during 100 A turn-off events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ180CA | Same VWM (154 V), lower PPPM (400 W), SMA package (smaller footprint, higher RθJA) | Limited to lower-energy transients; unsuitable for automotive load dump per ISO 7637-2 | Select when space-constrained PCBs prioritize size over 600 W surge handling |
| 1.5KE180CA | Higher power (1500 W), axial-leaded DO-201 package, no AEC-Q101 qualification | Requires through-hole assembly; not qualified for automotive use or automated SMT lines | Choose only for legacy through-hole designs where board real estate and reflow compatibility are not constraints |
Compared with SMAJ180CA and 1.5KE180CA, P6SMB180CAHM3_B/I uniquely delivers AEC-Q101 qualification, 600 W surge capability in an SMT-compatible SMB package, and verified performance under automotive-grade thermal and mechanical stress - making it the preferred choice for new automotive and industrial SMT designs requiring production-ready reliability.
Availability
P6SMB180CAHM3_B/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom line interfaces, and consumer appliance motor drives requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB180CAHM3_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, MOSFETs, and protection devices with emphasis on high-reliability, automotive-qualified, and industry-standard solutions.
The P6SMB series was engineered specifically for robust transient suppression in automotive, industrial, and telecom applications - combining high-power surge handling, AEC-Q101 compliance, and surface-mount manufacturability in the SMB package.
FAQ
What is the clamping voltage of P6SMB180CAHM3_B/I at its rated peak pulse current?
The P6SMB180CAHM3_B/I has a maximum clamping voltage (VC) of 246 V at its specified peak pulse current (IPPM) of 2.4 A under a 10/1000 μs waveform. This value is measured per standard test conditions in the Vishay datasheet (Document Number: 88370) and defines the upper voltage limit imposed on protected circuitry during transient events. The P6SMB180CAHM3_B/I maintains this clamping performance bidirectionally, ensuring consistent protection regardless of surge polarity.
Is P6SMB180CAHM3_B/I qualified for automotive applications?
Yes, P6SMB180CAHM3_B/I is AEC-Q101 qualified, as confirmed by the HM3_B/I suffix in its ordering code. This qualification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per JESD22-A114. The P6SMB180CAHM3_B/I is approved for use in automotive subsystems such as body control modules, ADAS sensors, and infotainment interfaces where reliability under extended temperature and vibration is mandatory.
What does the "CA" suffix indicate in P6SMB180CAHM3_B/I?
The "CA" suffix in P6SMB180CAHM3_B/I denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression in both forward and reverse directions. Unlike unidirectional variants (e.g., P6SMB180A), the CA version has no polarity marking and functions identically across either terminal orientation, making it ideal for AC-coupled lines, differential buses like CAN or RS-485, and floating supply rails where polarity cannot be assumed.
What is the thermal resistance of P6SMB180CAHM3_B/I, and how does it affect PCB layout?
The P6SMB180CAHM3_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 minimum recommended pad layout per Vishay's package drawing. To maintain safe junction temperatures under repetitive surges, designers must allocate adequate copper area and avoid excessive trace length between the P6SMB180CAHM3_B/I and ground planes - especially in high-duty-cycle applications like motor drive feedback loops.
How does the HM3_B/I suffix differ from standard M3 or HE3 suffixes in the P6SMB series?
The HM3_B/I suffix on P6SMB180CAHM3_B/I indicates halogen-free, RoHS-compliant, AEC-Q101 qualified construction with tape-and-reel packaging (I = 13" reel, 3200 units). The "B" denotes AEC-Q101 qualification for the 6.8–220 V range, while "HM3" specifies halogen-free molding compound. In contrast, M3 lacks automotive qualification, and HE3 is RoHS-compliant but not halogen-free. The P6SMB180CAHM3_B/I thus meets strict automotive environmental and reliability standards not covered by base M3 or HE3 variants.
P6SMB180CAHM3_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:
- -
- Bidirectional Channels:
- 1
- 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)
P6SMB180CAHM3_B/I FAQ
1.How can I place an order for P6SMB180CAHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB180CAHM3_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 P6SMB180CAHM3_B/I reliable?
The price and inventory of P6SMB180CAHM3_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 P6SMB180CAHM3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB180CAHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB180CAHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB180CAHM3_B/I?
P6SMB180CAHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB180CAHM3_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 P6SMB180CAHM3_B/I?
For technical support, including P6SMB180CAHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB180CAHM3_B/I requirements.
6.How does Aetrix verify that P6SMB180CAHM3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB180CAHM3_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 P6SMB180CAHM3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB180CAHM3_B/I?
All P6SMB180CAHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB180CAHM3_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 P6SMB180CAHM3_B/I part is unused and in its original packaging.
Return procedure for P6SMB180CAHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB180CAHM3_B/I Tags
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