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Vishay General Semiconductor - Diodes Division P6SMB180AHM3_A/H
- Part No.:
- P6SMB180AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB180AHM3_A/H.pdf
- Description:
- TVS DIODE 154VWM 246VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,540
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Product details
Overview
P6SMB180AHM3_A/H 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 (PPPM) with 10/1000 μs waveform. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power supply rails against inductive switching transients.
For engineers reviewing the P6SMB180AHM3_A/H datasheet, P6SMB180AHM3_A/H pinout, P6SMB180AHM3_A/H application, or P6SMB180AHM3_A/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature limit (TJ max = 150 °C), and halogen-free RoHS compliance per ordering suffix HM3.
Technical Context
This TVS diode operates as a unidirectional clamping device with glass-passivated junction and low incremental surge resistance, enabling fast response to ESD and lightning-induced transients. Its breakdown voltage (VBR) is specified at 171–189 V (min/max) with 1 mA test current, and it exhibits a temperature coefficient of 0.108 %/°C.
Designed for automated SMT placement on PCBs with 0.2" × 0.2" copper pads per terminal, it meets J-STD-020 MSL Level 1 and JESD201 Class 2 whisker resistance. The cathode band identifies polarity, and its 150 °C maximum junction temperature supports operation in under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 154 V - Maximum continuous reverse working voltage before clamping initiates |
| VBR (Breakdown) | 171–189 V at 1 mA - Voltage at which device enters avalanche conduction |
| VC (Clamping) | 246 V at IPPM = 2.4 A - Peak voltage seen by protected circuit during 10/1000 μs transient |
| PPPM | 600 W - Surge energy handling capability under standardized 10/1000 μs waveform |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient air on standard pad layout |
| TJ max | 150 °C - Maximum allowable junction temperature for reliable long-term operation |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability per stress test requirements |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Cathode identified by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to system ground in unidirectional TVS configuration | Provides low-impedance path to ground during reverse overvoltage events |
| Cathode | Current exit point in forward bias; connected to protected line (e.g., power rail or signal) | Defines polarity-sensitive clamping direction; band-marked end for PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Handles high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without failure |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage stress on downstream ICs during surge events |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control units and ADAS sensors |
| MSL Level 1, 260 °C reflow compatible | Enables single-pass lead-free reflow assembly without moisture-related damage |
| Glass passivated junction | Ensures stable leakage current (<1 μA at VWM) and long-term reliability under thermal cycling |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-connected ECUs from load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp surges above 154 V. Use Value: Limits voltage to ≤246 V during 600 W pulses, preventing damage to MCU power supplies and CAN transceivers. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) of pressure/temperature sensors in factory automation. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted at connector interface to suppress ESD and cable discharge events. Use Value: Responds in <1 ns to clamp transients while maintaining signal integrity due to minimal parasitic capacitance. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Snubbing |
Use Scenario: Safeguarding PoE-powered switches and base stations against lightning-induced surges on -48 V DC inputs. IC Role / Device Role / Timing Role: Primary clamping device upstream of DC-DC converters and hot-swap controllers. Use Value: Withstands repetitive 10/1000 μs surges at 0.01% duty cycle, ensuring uptime in outdoor telecom cabinets. |
Use Scenario: Suppressing flyback voltage spikes from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Mounted across motor terminals to absorb inductive kickback energy during PWM commutation. Use Value: Dissipates 600 W peak pulses without degradation, extending motor driver MOSFET lifetime. |
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 (154 V), VC = 246 V, but lower PPPM (400 W); SMA package (DO-214AC), RθJA = 110 °C/W | Limited to lower-energy transients; less robust thermal performance in confined layouts | Select when cost sensitivity outweighs surge margin and board space allows larger pad footprint |
| 1.5SMC180AHE3_A | Same VWM/VC ratings, 600 W PPPM, but SMC (DO-214AB) package; higher IFSM (200 A vs. 100 A) | Better suited for high-repetition-rate surges and higher forward surge tolerance | Choose for designs requiring enhanced ruggedness in motor drive or generator excitation circuits |
Compared with P6SMB180AHM3_A/H, SMAJ180A-E3/5B offers reduced surge capacity and thermal performance in a slightly smaller package, while 1.5SMC180AHE3_A provides identical clamping with superior surge endurance and larger thermal mass-making it preferable where layout permits SMC footprint.
Availability
P6SMB180AHM3_A/H is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom power input protection requiring stable component supply, AEC-Q101 validation, and halogen-free compliance.
Supply support for P6SMB180AHM3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive qualification.
The P6SMB Series targets surface-mount transient suppression in space-constrained, high-reliability applications-designed specifically for automotive, industrial, and telecom systems needing robust, standardized TVS protection with AEC-Q101 assurance.
FAQ
What is the clamping voltage of P6SMB180AHM3_A/H at its rated peak pulse current?
The clamping voltage (VC) of P6SMB180AHM3_A/H is 246 V measured at a peak pulse current (IPPM) of 2.4 A under the 10/1000 μs waveform condition. This value ensures protected circuits experience no more than 246 V during standardized surge events, directly supporting design margin calculations for downstream ICs and power stages.
Is P6SMB180AHM3_A/H qualified for automotive use?
Yes, P6SMB180AHM3_A/H is AEC-Q101 qualified, as confirmed by the HM3 suffix and Vishay documentation. It undergoes stress testing for temperature cycling, humidity, mechanical shock, and ESD per automotive reliability standards-making it suitable for engine control modules, body electronics, and ADAS sensor power domains.
What does the "HM3" suffix indicate in P6SMB180AHM3_A/H?
The "HM3" suffix in P6SMB180AHM3_A/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade (E3/M3) and non-automotive HE3 versions, confirming compliance with both environmental regulations and automotive reliability requirements.
How does the SMB package of P6SMB180AHM3_A/H compare thermally to larger packages like SMC?
P6SMB180AHM3_A/H in SMB (DO-214AA) has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W on standard 0.2" × 0.2" copper pads. In contrast, SMC-packaged equivalents (e.g., 1.5SMC180AHE3_A) achieve ~70 °C/W-meaning P6SMB180AHM3_A/H requires careful thermal layout but remains viable for moderate-duty cycles in compact automotive modules.
Can P6SMB180AHM3_A/H be used in bidirectional configurations?
No, P6SMB180AHM3_A/H is unidirectional only, as indicated by the "A" suffix (not "CA") and cathode band marking. For bidirectional protection at similar voltage levels, Vishay specifies P6SMB180CA variants-these lack polarity marking and clamp symmetrically in both directions, unlike P6SMB180AHM3_A/H.
P6SMB180AHM3_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):
- 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_A/H FAQ
1.How can I place an order for P6SMB180AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB180AHM3_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 P6SMB180AHM3_A/H reliable?
The price and inventory of P6SMB180AHM3_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 P6SMB180AHM3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB180AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB180AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB180AHM3_A/H?
P6SMB180AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB180AHM3_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 P6SMB180AHM3_A/H?
For technical support, including P6SMB180AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB180AHM3_A/H requirements.
6.How does Aetrix verify that P6SMB180AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB180AHM3_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 P6SMB180AHM3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB180AHM3_A/H?
All P6SMB180AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB180AHM3_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 P6SMB180AHM3_A/H part is unused and in its original packaging.
Return procedure for P6SMB180AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB180AHM3_A/H Tags
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