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Vishay General Semiconductor - Diodes Division P6SMB120AHE3/52
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- Part No.:
- P6SMB120AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB120AHE3/52.pdf
- Description:
- TVS DIODE 102VWM 165VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,147
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Product details
Overview
P6SMB120AHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 120 V standoff voltage (VWM), 165 V maximum clamping voltage (VC) at 3.6 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive, industrial, and telecom systems to safeguard MOSFETs, ICs, and sensor interfaces against inductive switching transients and lightning surges.
For engineers reviewing the P6SMB120AHE3/52 datasheet, P6SMB120AHE3/52 pinout, P6SMB120AHE3/52 application, or P6SMB120AHE3/52 equivalent, key selection criteria include its AEC-Q101 qualification, SMB (DO-214AA) package compatibility, unidirectional polarity with cathode band marking, and verified clamping performance under repetitive 0.01% duty cycle surge conditions.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds its breakdown threshold (114–126 V at 1 mA), it rapidly transitions from high-impedance to low-impedance state to divert transient energy away from downstream circuitry. Its glass-passivated junction ensures stable leakage (<1.0 μA at 102 V) and long-term reliability under thermal cycling.
Designed for surface-mount automation, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C), supports 100 A non-repetitive forward surge (8.3 ms half-sine), and delivers consistent clamping response with <1 ns typical turn-on time - critical for protecting fast-switching power stages and precision analog front-ends.
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 - Confirmed voltage range where device enters avalanche conduction; ensures predictable activation threshold. |
| VC (Clamping Voltage) | 165 V at IPPM = 3.6 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case transient; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy handling capacity under standardized 10/1000 μs waveform; validates protection level for IEC 61000-4-5 compliance testing. |
| ID (Reverse Leakage) | <1.0 μA at 102 V - Minimal standby current draw; avoids signal integrity degradation or battery drain in always-on circuits. |
| TJ max. | +150 °C - Maximum junction temperature rating; enables operation in under-hood automotive or high-ambient industrial environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, humidity bias HAST, and mechanical shock per AEC standard. |
Pinout & Package
Package: SMB (DO-214AA) - Surface-mount plastic case with matte tin-plated leads, 0.220" × 0.130" footprint, UL 94 V-0 rated molding compound, and MSL Level 1 moisture sensitivity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts avalanche current to ground during overvoltage events - polarity must match system grounding scheme. |
| Anode | Reference/ground return path | Typically tied to system ground or low-impedance return plane; completes current path during clamping - requires low-inductance layout. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Validated energy absorption capacity for IEC 61000-4-5 Level 4 surge immunity in industrial and automotive power rails. |
| AEC-Q101 qualified (HE3 suffix) | Meets automotive reliability requirements including -65 °C to +150 °C operation, thermal shock, and accelerated life testing. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients - critical for protecting gate drivers and logic-level inputs. |
| Glass passivated junction | Ensures stable electrical parameters across temperature and lifetime; eliminates parameter drift due to environmental exposure. |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free SMT assembly processes without preconditioning or special handling. |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting 12 V/24 V supply lines in engine control units (ECUs) and body control modules (BCMs) against load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp transients up to ±125 V. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers during ISO 7637-2 pulse 5a/b events. |
Use Scenario: Safeguarding digital input channels of programmable logic controllers against field-wiring induced surges and ESD. IC Role / Device Role / Timing Role: Standoff-rated TVS mounted at connector entry point to limit voltage to ≤165 V during 1 kV/500 A surge events. Use Value: Maintains functional safety integrity (IEC 61000-4-4/5 compliant) without requiring additional series impedance or filtering. |
| Telecom Power Supply Input | Sensor Signal Line Protection |
|
Use Scenario: Front-end protection of AC/DC and DC/DC converters in base station power supplies exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping device on 48 V input bus, coordinated with MOVs and fuses for staged overvoltage defense. Use Value: Limits let-through voltage to levels compatible with downstream SiC MOSFET gate oxide ratings and controller IC absolute maximums. |
Use Scenario: Shielding analog outputs (e.g., 4–20 mA, 0–10 V) of pressure/temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS placed directly at sensor connector to suppress EFT bursts and cable discharge events. Use Value: Preserves signal fidelity (leakage <1 μA) while ensuring sub-100 ns response prevents ADC saturation or op-amp rail-to-rail clipping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ120A-E3/52 | Same VWM (102 V), identical SMB package, but lower PPPM (400 W) and higher VC (178 V at 3.2 A). | Limited to lower-energy transients; not AEC-Q101 qualified. | Select when cost sensitivity outweighs automotive qualification or 600 W surge margin. |
| 1.5SMC120A | Same VWM/VC specs, but larger SMC (DO-214AB) package (0.285" × 0.175") and higher thermal resistance (RθJA = 125 °C/W). | Requires PCB area increase; less suitable for dense automotive modules. | Choose only if legacy SMC footprint reuse is mandatory and board space permits. |
Compared with SMAJ120A-E3/52 and 1.5SMC120A, P6SMB120AHE3/52 delivers superior surge robustness (600 W vs. 400 W/600 W), automotive qualification, and compact SMB footprint - making it optimal for space-constrained, high-reliability designs where clamping voltage margin and thermal performance are critical.
Availability
P6SMB120AHE3/52 is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, telecom power supplies, and sensor interface modules requiring stable component supply with full traceability and lifecycle management.
Supply support for P6SMB120AHE3/52 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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-energy transient suppression in harsh environments, engineered for automotive, industrial, and telecom applications where AEC-Q101 qualification, precise clamping, and automated assembly compatibility are essential.
FAQ
What is the maximum clamping voltage of the P6SMB120AHE3/52 under standard test conditions?
The P6SMB120AHE3/52 has a maximum clamping voltage (VC) of 165 V when subjected to a 10/1000 μs waveform with a peak pulse current (IPPM) of 3.6 A. This value is measured at TA = 25 °C and reflects the highest voltage the protected circuit will experience during a defined surge event - critical for ensuring downstream components remain within their absolute maximum ratings. The P6SMB120AHE3/52 maintains this clamping performance across its qualified operating temperature range.
Is the P6SMB120AHE3/52 suitable for automotive applications?
Yes, the P6SMB120AHE3/52 is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's official datasheet (Document Number: 88370). It undergoes rigorous stress testing including temperature cycling, high-temperature operating life, and mechanical shock - meeting automotive-grade reliability requirements for under-hood and chassis-mounted electronics. The P6SMB120AHE3/52 is explicitly recommended for ECU, BCM, and ADAS power rail protection.
What does the "HE3" suffix indicate in P6SMB120AHE3/52?
The "HE3" suffix in P6SMB120AHE3/52 denotes RoHS-compliant construction with AEC-Q101 qualification and matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. It distinguishes this variant from commercial-grade E3/M3 versions and confirms suitability for automotive production. The "H" indicates AEC-Q101 qualification, "E3" specifies RoHS compliance and commercial temperature grade, and "/52" refers to 7" tape-and-reel packaging with 750 units per reel. The P6SMB120AHE3/52 is not a generic variant - its HE3 designation is tightly coupled to its qualified performance envelope.
How does the P6SMB120AHE3/52 compare to bidirectional TVS diodes like P6SMB120CA?
The P6SMB120AHE3/52 is unidirectional and features a cathode band for polarity-sensitive placement, whereas P6SMB120CA is bidirectional with no polarity marking and symmetric clamping in both directions. The P6SMB120AHE3/52 offers lower leakage (<1.0 μA at 102 V) and is preferred for DC power rail protection where reverse conduction must be blocked. Bidirectional variants are used in AC-coupled signal lines or differential buses like RS-485. The P6SMB120AHE3/52 cannot substitute for P6SMB120CA in AC applications without circuit redesign.
What is the thermal resistance and power derating behavior of the P6SMB120AHE3/52?
The P6SMB120AHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads, and junction-to-lead resistance (RθJL) of 20 °C/W. Its power dissipation (PD) is rated at 5.0 W at TA = 50 °C, with linear derating above 50 °C - dropping to zero at +150 °C. Derating curves in Figure 2 of the datasheet confirm 50% power capability at 100 °C ambient. This thermal profile makes the P6SMB120AHE3/52 suitable for high-density layouts where localized heating must be managed without heatsinks.
P6SMB120AHE3/52 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:
- Discontinued at Digi-Key
- 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)
P6SMB120AHE3/52 FAQ
1.How can I place an order for P6SMB120AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB120AHE3/52 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 P6SMB120AHE3/52 reliable?
The price and inventory of P6SMB120AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB120AHE3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB120AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB120AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB120AHE3/52?
P6SMB120AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB120AHE3/52 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 P6SMB120AHE3/52?
For technical support, including P6SMB120AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB120AHE3/52 requirements.
6.How does Aetrix verify that P6SMB120AHE3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB120AHE3/52 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 P6SMB120AHE3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB120AHE3/52?
All P6SMB120AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB120AHE3/52, 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 P6SMB120AHE3/52 part is unused and in its original packaging.
Return procedure for P6SMB120AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB120AHE3/52 Tags
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