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Vishay General Semiconductor - Diodes Division P6SMB120AHM3_A/H
- Part No.:
- P6SMB120AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB120AHM3_A/H.pdf
- Description:
- TVS DIODE 102VWM 165VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,067
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Product details
Overview
P6SMB120AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 120 V standoff voltage (VWM), 165 V clamping voltage (VC) at 3.6 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 against inductive switching transients and lightning surges in industrial and automotive electronics.
For engineers reviewing the P6SMB120AHM3_A/H datasheet, P6SMB120AHM3_A/H pinout, P6SMB120AHM3_A/H application, or P6SMB120AHM3_A/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), clamping behavior under surge, and halogen-free RoHS-compliant construction per JESD201 Class 2 whisker testing.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable breakdown and low incremental surge resistance. Its 10/1000 μs waveform response enables fast suppression of transient energy before downstream components are stressed.
Designed for surface-mount automated placement, it meets MSL Level 1 per J-STD-020 with 260 °C lead-free reflow peak, and its SMB package provides mechanical robustness while maintaining low profile (max height 1.95 mm). The device is halogen-free, RoHS-compliant, and AEC-Q101 qualified - indicated by the "HM3" suffix and revision "A/H" tape-and-reel delivery code.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 102 V - maximum continuous reverse operating voltage before clamping initiates; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 114–126 V at 1 mA - guaranteed voltage range where avalanche conduction begins; ensures predictable turn-on threshold. |
| VC (Clamping Voltage) | 165 V at IPPM = 3.6 A - peak voltage seen by protected circuit during 10/1000 μs transient; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - maximum transient energy dissipation capability with 10/1000 μs waveform; defines surge handling capacity. |
| RθJA | 100 °C/W - junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; critical for thermal design margin at 5.0 W steady-state PD. |
| TJ max. | +150 °C - maximum allowable junction temperature; supports operation in under-hood automotive and industrial environments. |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; confirmed by HM3 suffix and _A/H revision code. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Cathode identified by band marking; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when V > VBR; polarity must match system grounding scheme. |
| Anode (unbanded end) | Reference node / ground return | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV line-earth) without derating in standard PCB layouts. |
| Halogen-free, RoHS-compliant construction | Meets automotive and industrial environmental compliance mandates (e.g., ELV, RoHS 2011/65/EU) without compromising surge performance. |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, body electronics, and ADAS sensors requiring long-term reliability under thermal cycling. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), improving clamping fidelity for sensitive analog and digital interfaces. |
| MSL Level 1 moisture sensitivity | Allows direct placement without baking; compatible with standard lead-free reflow profiles up to 260 °C peak temperature. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting 12 V CAN/LIN bus interface circuits from load dump and inductive kickback in vehicle door modules and lighting controllers. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between signal line and chassis ground to limit transient voltage to <165 V during 100 ms load dump events. Use Value: Prevents latch-up or gate oxide damage in transceiver ICs (e.g., TJA1042) by clamping within 1.5 ns response time and sustaining 600 W surge without degradation. |
Use Scenario: Safeguarding 24 V DC digital input channels of programmable logic controllers against field-wiring induced surges from solenoid switching. IC Role / Device Role / Timing Role: Standoff protector mounted directly at connector entry point to shunt transients before reaching optocoupler input stage. Use Value: Maintains VWM = 102 V margin above nominal 24 V supply while clamping to 165 V, ensuring optocoupler CTR stability and eliminating false triggering. |
| Telecom Power Supply Front-End | Consumer Appliance Motor Drive Board |
Use Scenario: Shielding AC/DC adapter secondary-side rectifier outputs from lightning-induced common-mode surges entering via Ethernet or PoE lines. IC Role / Device Role / Timing Role: Secondary-side unidirectional clamp across DC output rails to suppress differential-mode transients before LDO regulators. Use Value: Delivers 600 W pulse handling with RθJA = 100 °C/W, enabling compact layout without heatsinking while meeting IEC 61000-4-5 Ed.3 requirements. |
Use Scenario: Protecting gate drivers and microcontroller GPIOs in washing machine motor inverters from commutation spikes generated by BLDC motor back-EMF. IC Role / Device Role / Timing Role: Localized TVS on half-bridge driver supply rails and sense lines to prevent false shutdown or MCU reset during high-dI/dt switching. Use Value: Clamps 10/1000 μs transients to ≤165 V within nanoseconds, preserving timing integrity of PWM signals and avoiding firmware lockup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ120A-E3/52 | Same VWM (102 V), VC = 165 V, but lower PPPM (400 W); SMB package; commercial grade (non-AEC-Q101). | Lacks automotive qualification and halogen-free certification; suitable only for non-automotive industrial or consumer use. | Select when cost sensitivity outweighs AEC-Q101 requirement and surge energy remains ≤400 W. |
| 1.5SMC120A | Higher package thermal resistance (RθJA ≈ 120 °C/W); same VWM/VC but lower IPPM (3.3 A); DO-214AB (SMC) package - larger footprint. | Requires more PCB area; less suitable for space-constrained automotive modules; not AEC-Q101 qualified. | Choose only if existing SMC footprint is fixed and thermal margin allows higher RθJA. |
Compared with SMAJ120A-E3/52 and 1.5SMC120A, P6SMB120AHM3_A/H uniquely combines AEC-Q101 qualification, halogen-free compliance, SMB footprint, and full 600 W rating - making it the only option qualified for automotive front-end and safety-critical industrial control nodes.
Availability
P6SMB120AHM3_A/H is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input stages, telecom power front-ends, and appliance motor drive boards requiring stable component supply with traceable sourcing and lifecycle continuity.
Supply support for P6SMB120AHM3_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 designs and manufactures discrete semiconductors including diodes, MOSFETs, and TVS devices, with emphasis on reliability, efficiency, and application-specific performance.
The P6SMB Series targets high-energy transient suppression in space-constrained, high-reliability applications - especially automotive, industrial automation, and telecom infrastructure where AEC-Q101 validation and consistent clamping are mandatory.
FAQ
What is the clamping voltage of P6SMB120AHM3_A/H at its rated peak pulse current?
The P6SMB120AHM3_A/H has a maximum clamping voltage (VC) of 165 V at its specified peak pulse current (IPPM) of 3.6 A under a 10/1000 μs waveform. This value is measured per JEDEC standards and guarantees the voltage imposed on protected circuitry will not exceed 165 V during standardized surge events, directly supporting IEC 61000-4-5 compliance verification for the P6SMB120AHM3_A/H.
Is P6SMB120AHM3_A/H qualified for automotive applications?
Yes, P6SMB120AHM3_A/H is AEC-Q101 qualified, as confirmed by its "HM3" suffix and revision code "A/H", which denote halogen-free, RoHS-compliant, and automotive-grade reliability testing. The P6SMB120AHM3_A/H undergoes stress tests including temperature cycling, high-temperature reverse bias, and ESD, making it suitable for under-hood and body electronics where long-term operational stability is required.
What does the "HM3" suffix indicate in P6SMB120AHM3_A/H?
The "HM3" suffix in P6SMB120AHM3_A/H specifies halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance, distinguishing it from commercial-grade "E3" or "M3" variants. It also confirms AEC-Q101 qualification when paired with appropriate revision codes like "A/H", ensuring the P6SMB120AHM3_A/H meets stringent automotive material and reliability standards beyond basic compliance.
How does the thermal resistance of P6SMB120AHM3_A/H affect its power handling?
P6SMB120AHM3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W on standard 0.2" × 0.2" copper pads. At its steady-state power dissipation (PD) of 5.0 W, this results in a ~500 °C junction-to-ambient delta - meaning actual operation relies on short-duration pulse handling rather than continuous dissipation. The P6SMB120AHM3_A/H is engineered for transient suppression, not DC power regulation, so thermal design focuses on pulse duty cycle and PCB copper area, not heatsinking.
Can P6SMB120AHM3_A/H replace P6SMB120AHE3_B/H in an existing design?
Yes, P6SMB120AHM3_A/H can replace P6SMB120AHE3_B/H in most cases: both share identical electrical specs (VWM = 102 V, VC = 165 V, PPPM = 600 W), SMB package, and AEC-Q101 qualification. The key difference is halogen-free content (HM3 vs HE3) and revision code ("A/H" vs "B/H"), both compliant with JESD201 Class 2. No PCB or schematic changes are needed for the P6SMB120AHM3_A/H swap, provided halogen-free compliance is required.
P6SMB120AHM3_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):
- 102V
- Voltage - Breakdown (Min):
- 114V
- Voltage - Clamping (Max) @ Ipp:
- 165V
- Current - Peak Pulse (10/1000µs):
- 3.6A
- 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)
P6SMB120AHM3_A/H FAQ
1.How can I place an order for P6SMB120AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB120AHM3_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 P6SMB120AHM3_A/H reliable?
The price and inventory of P6SMB120AHM3_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 P6SMB120AHM3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB120AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB120AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB120AHM3_A/H?
P6SMB120AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB120AHM3_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 P6SMB120AHM3_A/H?
For technical support, including P6SMB120AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB120AHM3_A/H requirements.
6.How does Aetrix verify that P6SMB120AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB120AHM3_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 P6SMB120AHM3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB120AHM3_A/H?
All P6SMB120AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB120AHM3_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 P6SMB120AHM3_A/H part is unused and in its original packaging.
Return procedure for P6SMB120AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB120AHM3_A/H Tags
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