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Vishay General Semiconductor - Diodes Division P6SMB120AHE3_B/I
- Part No.:
- P6SMB120AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB120AHE3_B/I.pdf
- Description:
- 600W,120V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,208
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Product details
Overview
P6SMB120AHE3_B/I 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 = 102 V), 165 V clamping voltage (VC) at 3.6 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs waveform). It provides robust ESD and surge protection for DC power rails and signal lines in automotive and industrial control systems.
For engineers reviewing the P6SMB120AHE3_B/I datasheet, P6SMB120AHE3_B/I pinout, P6SMB120AHE3_B/I application, or P6SMB120AHE3_B/I equivalent, key selection criteria include its AEC-Q101 qualification, low thermal resistance (RθJL = 20 °C/W), unidirectional polarity with cathode band marking, and compliance with J-STD-020 MSL level 1 (260 °C reflow).
Technical Context
This TVS diode operates as a clamping device that remains high-impedance below 102 V reverse standoff voltage and rapidly transitions to low-impedance conduction above 114 V breakdown voltage (VBR min), limiting transient energy to safe levels. Its glass-passivated junction ensures stable leakage (<1 μA at VWM) and fast response time (<1.0 ns).
The device is designed for repetitive surge events with 0.01% duty cycle, derated linearly above 25 °C ambient per Fig. 2, and requires minimum 5.0 mm × 5.0 mm copper pads per terminal for rated 600 W dissipation. Its unidirectional configuration supports DC-biased protection paths only.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 102 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (Breakdown) | 114–126 V at 1 mA - Confirmed avalanche initiation range under controlled test conditions |
| VC (Clamping) | 165 V at IPPM = 3.6 A - Peak voltage seen by protected circuit during 10/1000 μs surge |
| PPPM | 600 W - Sustained transient energy absorption capability per single 10/1000 μs pulse |
| ID (Leakage) | <1 μA at 102 V - Minimal parasitic loading on DC supply or signal line at rated VWM |
| TJ max | +150 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| MSL Level | Level 1 (260 °C peak) - Compatible with standard lead-free reflow profiles without preconditioning |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, molded plastic case with matte tin-plated leads; cathode indicated by band at one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path in unidirectional TVS configuration |
| Cathode | High-side connection point | Connected to protected line (e.g., 12 V rail); band-marked terminal |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| 600 W peak pulse rating | Supports IEC 61000-4-5 Level 4 (4 kV) surge protection without external derating |
| Low RθJL = 20 °C/W | Enables efficient heat transfer to PCB copper, critical for sustained surge handling in compact layouts |
| MSL Level 1 | Eliminates moisture sensitivity concerns and pre-bake requirements in SMT assembly |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting 12 V supply rail against load dump transients up to 35 V and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between fused battery input and DC-DC converter input. Use Value: Limits voltage to ≤165 V during 10/1000 μs surges, preventing damage to downstream regulators and microcontrollers. |
Use Scenario: Safeguarding 24 V digital input channels from field-wiring induced surges and inductive kickback. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across optocoupler input terminals. Use Value: Clamps transients within 1 ns while maintaining <1 μA leakage at 24 V nominal, preserving input threshold accuracy. |
| Telecom Power Supply Interface | Consumer Appliance Motor Driver |
Use Scenario: Shielding PoE-powered Ethernet interface circuits from lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Primary-level TVS on DC input side of isolated DC-DC module feeding PHY IC. Use Value: Absorbs 600 W peak energy without degradation, meeting GR-1089-CORE Level 3 surge immunity requirements. |
Use Scenario: Suppressing flyback voltage spikes from brushed DC motor commutation in smart home appliances. IC Role / Device Role / Timing Role: Unidirectional TVS across motor terminals, referenced to system ground. Use Value: Clamps 12 V motor supply spikes to ≤165 V, preventing gate oxide stress on half-bridge MOSFETs. |
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 and non-AEC-Q101 rated | Limited to commercial-grade industrial or consumer use; not qualified for automotive under-hood deployment | Select when cost sensitivity outweighs automotive qualification and 600 W surge margin is unnecessary |
| 1.5SMC120A | Same VWM/VC specs, but larger SMC (DO-214AB) package (2.54 mm pitch vs. 2.29 mm), higher RθJA = 125 °C/W | Requires larger PCB footprint and exhibits higher thermal impedance; less suitable for dense automotive modules | Choose only if legacy SMC footprint compatibility is mandatory and thermal headroom permits |
Compared with SMAJ120A-E3/52 and 1.5SMC120A, P6SMB120AHE3_B/I delivers AEC-Q101 assurance, superior thermal performance (RθJL = 20 °C/W), and full 600 W surge capacity in the smaller SMB outline-making it optimal for space-constrained, high-reliability automotive and industrial designs.
Availability
P6SMB120AHE3_B/I is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, telecom power interfaces, and consumer appliance motor control systems requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB120AHE3_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 reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-energy transient suppression in automotive, industrial, and telecom infrastructure, combining AEC-Q101 qualification, low-profile SMB packaging, and consistent 600 W surge capability across 6.8 V to 220 V ratings.
FAQ
What is the maximum clamping voltage of P6SMB120AHE3_B/I under a 10/1000 μs surge?
The P6SMB120AHE3_B/I clamps to a maximum of 165 V when subjected to its rated peak pulse current of 3.6 A (IPPM) using the standardized 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 circuitry during transient events.
Is P6SMB120AHE3_B/I qualified for automotive applications?
Yes, P6SMB120AHE3_B/I is AEC-Q101 qualified, as confirmed by the "HE3_B" suffix and documentation in Vishay's P6SMB series datasheet (Rev. 09-Jan-2024). This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD, making it suitable for under-hood and body-control automotive modules.
What does the "_B/I" suffix indicate in P6SMB120AHE3_B/I?
The "_B" denotes AEC-Q101 qualification for the P6SMB120AHE3_B/I, while "/I" specifies packaging in 13-inch diameter plastic tape and reel with 3200 units per reel. This format aligns with Vishay's ordering nomenclature in Section 4 of datasheet 88370 and ensures traceable, high-volume SMT assembly readiness.
How does the thermal resistance of P6SMB120AHE3_B/I affect PCB layout?
P6SMB120AHE3_B/I has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, meaning effective heat transfer relies on adequate copper pad area (minimum 5.0 mm × 5.0 mm per terminal per datasheet). Insufficient copper reduces surge endurance and risks thermal runaway during repetitive transients.
Can P6SMB120AHE3_B/I be used in bidirectional configurations?
No, P6SMB120AHE3_B/I is a unidirectional TVS diode, as indicated by the "A" suffix (not "CA") and cathode band marking. Bidirectional operation requires the CA variant (e.g., P6SMB120CA), which lacks polarity marking and conducts symmetrically in both directions.
P6SMB120AHE3_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):
- 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)
P6SMB120AHE3_B/I FAQ
1.How can I place an order for P6SMB120AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB120AHE3_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 P6SMB120AHE3_B/I reliable?
The price and inventory of P6SMB120AHE3_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 P6SMB120AHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB120AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB120AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB120AHE3_B/I?
P6SMB120AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB120AHE3_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 P6SMB120AHE3_B/I?
For technical support, including P6SMB120AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB120AHE3_B/I requirements.
6.How does Aetrix verify that P6SMB120AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB120AHE3_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 P6SMB120AHE3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB120AHE3_B/I?
All P6SMB120AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB120AHE3_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 P6SMB120AHE3_B/I part is unused and in its original packaging.
Return procedure for P6SMB120AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB120AHE3_B/I Tags
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