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Vishay General Semiconductor - Diodes Division P6SMB120AHE3_A/I
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- Part No.:
- P6SMB120AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB120AHE3_A/I.pdf
- Description:
- TVS DIODE 102VWM 165VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,084
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Product details
Overview
P6SMB120AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 120 V standoff voltage (VWM), 137 V maximum clamping voltage at 3.6 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies and automotive ECUs.
For engineers reviewing the P6SMB120AHE3_A/I datasheet, P6SMB120AHE3_A/I pinout, P6SMB120AHE3_A/I application, or P6SMB120AHE3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging a glass-passivated silicon junction for stable breakdown behavior under repetitive transient stress. Its thermal resistance (RθJA = 100 °C/W) and RθJL = 20 °C/W support reliable operation up to 150 °C junction temperature when mounted per recommended pad layout.
The device delivers fast response time (<1 ns) and excellent clamping ratio (VC/VBR ≈ 1.30), with a 0.107 %/°C temperature coefficient of breakdown voltage ensuring predictable performance across temperature ranges. It meets J-STD-020 MSL Level 1 and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 102 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown) | 114–126 V at 1 mA - Measured breakdown range ensures consistent turn-on threshold for transient suppression. |
| VC (Clamping) | 165 V at 3.6 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs surge; determines stress on downstream components. |
| PPPM | 600 W - Peak pulse power handling capacity with 10/1000 μs waveform; enables robust protection against lightning-induced surges. |
| IPPM | 3.6 A - Maximum non-repetitive peak pulse current; sets minimum trace width and PCB copper area requirements. |
| TJ max | 150 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial environments. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 0.220" × 0.205" footprint; compatible with high-speed pick-and-place equipment. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1, 260 °C reflow peak.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration. |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V rail or sensor input); conducts only during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control and ADAS modules. |
| Glass passivated junction | Enhances long-term stability and reduces parameter drift under thermal stress and humidity exposure. |
| 600 W peak pulse power | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-line) without derating in standard PCB layouts. |
| Low clamping ratio (VC/VBR) | ~1.30 - Minimizes overvoltage overshoot during clamping, reducing risk of latch-up or gate oxide damage in protected ICs. |
| MSL Level 1 compliance | Enables standard reflow soldering without pre-baking; simplifies manufacturing integration for high-volume SMT lines. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs in engine control units against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between VIN and GND, activated within <1 ns of overvoltage onset. Use Value: Limits transient voltage to ≤165 V, preventing brownout reset or permanent damage to 5 V LDO regulators and MCU cores. |
Use Scenario: Safeguarding analog outputs of pressure sensors in factory automation systems exposed to relay coil flyback and ESD. IC Role / Device Role / Timing Role: Standoff-clamp protector on 4–20 mA current loop output lines, absorbing ±1 kV ESD per IEC 61000-4-2. Use Value: Maintains signal integrity by limiting voltage excursion to <170 V while preserving low leakage (<1 μA at 102 V) during normal operation. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Shielding PoE-powered switch port DC inputs from induced surges due to nearby AC wiring or lightning coupling. IC Role / Device Role / Timing Role: Primary-level TVS on 48 V input rail upstream of DC/DC converter, triggered by >102 V transients. Use Value: Absorbs 600 W surge energy without degradation, enabling compliance with GR-1089-CORE telecom immunity standards. |
Use Scenario: Suppressing inductive kickback from brushed DC motors in smart home appliances (e.g., vacuum cleaners, blenders). IC Role / Device Role / Timing Role: Reverse-biased clamp across motor terminals, conducting only during commutation spikes. Use Value: Prevents MOSFET drain-source avalanche failure by clamping flyback voltage to ≤165 V, extending power stage lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ120A-E3/5B | Same VWM (102 V), but lower PPPM (400 W) and higher VC (175 V); SMA package (smaller footprint, higher RθJA). | Limited to lower-energy transients; not AEC-Q101 qualified; unsuitable for automotive under-hood use. | Select when space-constrained PCBs require smaller footprint and surge levels remain ≤400 W. |
| 1.5SMC120A | Same electrical specs (VWM, VBR, VC, PPPM), but larger SMC (DO-214AB) package; higher thermal mass but requires more board area. | Better thermal dissipation (RθJA ≈ 60 °C/W) for high-duty-cycle surge environments; no AEC-Q101 variant available. | Choose when sustained surge repetition or elevated ambient temperatures demand improved thermal performance over footprint size. |
Compared with SMAJ120A-E3/5B and 1.5SMC120A, the P6SMB120AHE3_A/I uniquely combines AEC-Q101 qualification, SMB footprint efficiency, and full 600 W rating - making it optimal for automotive and industrial designs requiring validated reliability and compact layout.
Availability
P6SMB120AHE3_A/I is available at Aetrix Electronics and suitable for automotive ECU power rails, industrial sensor interfaces, telecom DC inputs, and consumer appliance motor drives requiring stable component supply with AEC-Q101 assurance and RoHS compliance.
Supply support for P6SMB120AHE3_A/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 reliability, precision, and automotive-grade validation.
The P6SMB Series targets high-reliability transient suppression in harsh environments, with design focus on AEC-Q101 compliance, low clamping ratio, and compatibility with automated SMT assembly for automotive, industrial, and telecom applications.
FAQ
What is the maximum clamping voltage of the P6SMB120AHE3_A/I under a 10/1000 μs surge?
The P6SMB120AHE3_A/I has a maximum clamping voltage (VC) of 165 V at 3.6 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet 88370 and defines the upper voltage limit imposed on protected circuits during standardized surge events. The P6SMB120AHE3_A/I maintains this clamping performance across its specified operating temperature range.
Is the P6SMB120AHE3_A/I AEC-Q101 qualified?
Yes, the P6SMB120AHE3_A/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in Vishay's ordering information table (page 3, document 88370). The "_A/I" denotes 13" tape-and-reel packaging, and the "HE3" base indicates RoHS-compliant, AEC-Q101-qualified construction. This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD.
What is the standoff voltage (VWM) of the P6SMB120AHE3_A/I, and how does it relate to system design?
The P6SMB120AHE3_A/I has a standoff voltage (VWM) of 102 V, meaning it remains non-conductive up to this reverse voltage during normal operation. Designers must ensure that the maximum steady-state voltage on the protected line stays below 102 V - typically with ≥10 % margin - to prevent leakage current increase or premature clamping. This makes the P6SMB120AHE3_A/I suitable for 90–100 V nominal DC systems like commercial vehicle battery rails.
Does the P6SMB120AHE3_A/I have bidirectional capability?
No, the P6SMB120AHE3_A/I is a unidirectional TVS diode, indicated by the "A" suffix (not "CA"). Its cathode band marks the terminal that connects to the protected line, while the anode connects to ground or reference. Bidirectional variants (e.g., P6SMB120CA) are available separately but differ in breakdown symmetry and are not interchangeable with the P6SMB120AHE3_A/I without circuit redesign.
What is the thermal resistance of the P6SMB120AHE3_A/I, and how does it affect PCB layout?
The P6SMB120AHE3_A/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, as specified in the Vishay datasheet. To maintain safe junction temperature under repeated surges, designers must adhere to this pad layout - reducing copper area increases RθJA and risks thermal runaway. The RθJL of 20 °C/W further emphasizes the need for solid thermal connection to PCB planes.
P6SMB120AHE3_A/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:
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB120AHE3_A/I FAQ
1.How can I place an order for P6SMB120AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB120AHE3_A/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 P6SMB120AHE3_A/I reliable?
The price and inventory of P6SMB120AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB120AHE3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB120AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB120AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB120AHE3_A/I?
P6SMB120AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB120AHE3_A/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 P6SMB120AHE3_A/I?
For technical support, including P6SMB120AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB120AHE3_A/I requirements.
6.How does Aetrix verify that P6SMB120AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB120AHE3_A/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 P6SMB120AHE3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB120AHE3_A/I?
All P6SMB120AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB120AHE3_A/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 P6SMB120AHE3_A/I part is unused and in its original packaging.
Return procedure for P6SMB120AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB120AHE3_A/I Tags
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