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Vishay General Semiconductor - Diodes Division P6SMB120CAHE3_B/H
- Part No.:
- P6SMB120CAHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB120CAHE3_B/H.pdf
- Description:
- 600W,120V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,525
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Product details
Overview
P6SMB120CAHE3_B/H from Vishay General Semiconductor is a bidirectional 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 (10/1000 μs waveform). It protects signal lines and power rails in automotive sensor units, industrial I/O modules, and telecom interface circuits against ESD and inductive switching transients.
For engineers reviewing the P6SMB120CAHE3_B/H datasheet, P6SMB120CAHE3_B/H pinout, P6SMB120CAHE3_B/H application, or P6SMB120CAHE3_B/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT assembly on standard PCB pad layouts.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at VWM) across temperature.
The device delivers 600 W transient suppression per the 10/1000 μs waveform standard, with clamping voltage tightly controlled at 165 V under 3.6 A IPPM. Thermal resistance is specified at RθJA = 100 °C/W and RθJL = 20 °C/W, supporting reliable operation up to 150 °C junction temperature when mounted on 5.0 mm × 5.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 102 V - Maximum continuous reverse voltage before clamping begins; defines operating margin below breakdown |
| VBR (Breakdown) | 114–126 V at 1 mA - Confirmed breakdown range ensuring predictable turn-on during transients |
| VC (Clamping) | 165 V at 3.6 A IPPM - Peak voltage seen by protected circuit during worst-case 10/1000 μs surge |
| PPPM | 600 W - Peak transient energy absorption capacity per industry-standard waveform |
| ID (Leakage) | ≤1.0 μA at 102 V - Minimal DC loading on sensitive analog or high-impedance signal paths |
| TJ max | +150 °C - Enables use in under-hood automotive and high-temperature industrial environments |
| Package | SMB (DO-214AA) - Standardized SMT footprint compatible with JEDEC MS-012AC, supports automated placement |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; symmetrical with cathode in bidirectional mode | Enables identical clamping behavior for positive and negative transients; no polarity dependency in layout |
| Cathode | Current exit point in forward bias; electrically equivalent to anode for bidirectional operation | Eliminates need for orientation-aware placement; simplifies PCB routing and assembly verification |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity testing, and mechanical shock per stress test requirements |
| 600 W peak pulse power | Robust suppression of high-energy transients from relay switching, motor commutation, or lightning-induced surges |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage stress on downstream ICs while maintaining fast response time (<1 ns typical) |
| MSL Level 1 (260 °C peak reflow) | Compatible with standard lead-free SMT reflow profiles without preconditioning or special handling |
| Glass passivated junction | Ensures long-term parameter stability and low leakage drift over lifetime and temperature extremes |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and Hall-effect sensor outputs from load dump and ESD events in engine control modules. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt transients before reaching signal conditioning circuitry. Use Value: Maintains signal integrity under ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-2 ±15 kV contact discharge without latch-up or degradation. |
Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers exposed to field wiring surges and ground potential differences. IC Role / Device Role / Timing Role: Primary overvoltage protector across input terminals, coordinated with series current-limiting resistors and filtering capacitors. Use Value: Limits transient voltage to ≤165 V during 10/1000 μs surges up to 600 W, preventing damage to precision op-amps and ADC front-ends. |
| Telecom Line Card Protection | Consumer Power Adapter Feedback Path |
|
Use Scenario: Shielding Ethernet PHY magnetics and PoE controller pins from induced surges on unshielded twisted-pair cabling in enterprise switches. IC Role / Device Role / Timing Role: Secondary-level TVS deployed after gas discharge tube (GDT) primary protection to handle residual fast-rising transients. Use Value: Responds within nanoseconds to clamp sub-microsecond EFT bursts (IEC 61000-4-4), preserving data integrity and link stability. |
Use Scenario: Securing optocoupler feedback signals in isolated AC/DC adapters against coupling from primary-side MOSFET switching noise. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF typical) bidirectional clamp placed across secondary-side error amplifier inputs. Use Value: Prevents false triggering of regulation circuitry during 2 kV ESD events while adding negligible phase shift to feedback loop. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ120CA | Same VWM (102 V), VC = 165 V, but lower PPPM (400 W); SMA package (smaller footprint, higher RθJA) | Limited to lower-energy transients; less suitable for automotive load dump or industrial motor drive environments | Select when board space is constrained and surge energy remains ≤400 W; verify thermal derating at elevated ambient temperatures |
| 1.5KE120CA | Higher PPPM (1500 W), axial-leaded DO-201 package; VWM = 102 V, VC = 165 V, but not AEC-Q101 qualified | Requires through-hole mounting; unsuitable for automated SMT production or vibration-prone automotive chassis locations | Choose only for prototyping or legacy through-hole designs where 1500 W headroom justifies manual assembly and larger footprint |
Compared with SMAJ120CA and 1.5KE120CA, P6SMB120CAHE3_B/H uniquely combines AEC-Q101 qualification, 600 W rating, SMB SMT compatibility, and bidirectional symmetry-making it the preferred choice for volume automotive and industrial SMT production requiring traceable, high-reliability transient protection.
Availability
P6SMB120CAHE3_B/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC analog inputs, and telecom line card protection requiring stable component supply, full AEC-Q101 compliance, and consistent SMB package delivery.
Supply support for P6SMB120CAHE3_B/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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific performance.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems, designed to meet stringent AEC-Q101, RoHS, and UL 94 V-0 requirements while supporting automated manufacturing.
FAQ
What is the clamping voltage of P6SMB120CAHE3_B/H at its rated peak pulse current?
The P6SMB120CAHE3_B/H has a maximum clamping voltage (VC) of 165 V when subjected to its rated peak pulse current (IPPM) of 3.6 A under the standard 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet (Document Number: 88370) and represents the upper limit of voltage imposed on protected circuitry during worst-case transient events. The P6SMB120CAHE3_B/H maintains this clamping performance across its operational temperature range and is validated for repetitive surge duty cycles up to 0.01 %.
Is P6SMB120CAHE3_B/H suitable for automotive applications?
Yes, P6SMB120CAHE3_B/H is AEC-Q101 qualified and explicitly designated for automotive use via its "HE3" and "_B" suffixes, indicating RoHS-compliant construction and qualification to the AEC-Q101 stress test standard. It is rated for operation from −65 °C to +150 °C junction temperature and meets MSL Level 1 reflow requirements. The P6SMB120CAHE3_B/H is commonly deployed in engine control units, body control modules, and ADAS sensor interfaces where robust transient immunity is mandated.
How does the bidirectional design of P6SMB120CAHE3_B/H affect PCB layout?
The bidirectional design of P6SMB120CAHE3_B/H eliminates polarity marking and orientation constraints-no cathode band or directional indicator is present on the SMB package. This allows unrestricted placement on PCBs, simplifying automated pick-and-place programming and reducing assembly errors. Layout requires only two symmetric SMT pads matching the DO-214AA footprint (5.0 mm × 5.0 mm copper area per terminal), with no need for trace routing directionality or polarity-aware silkscreen.
What is the maximum reverse leakage current for P6SMB120CAHE3_B/H at its stand-off voltage?
The maximum reverse leakage current (ID) for P6SMB120CAHE3_B/H is 1.0 μA at its rated stand-off voltage (VWM) of 102 V and TA = 25 °C. This low leakage ensures minimal DC loading on high-impedance nodes such as sensor bias networks or feedback paths in precision analog circuits. Leakage remains within specification up to TJ = 150 °C, with typical values well below 1.0 μA at room temperature, supporting stable long-term operation in battery-powered and low-power systems.
Does P6SMB120CAHE3_B/H require external heat sinking for 600 W pulse handling?
No, P6SMB120CAHE3_B/H achieves its 600 W peak pulse power rating without external heat sinking when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as defined in the Vishay datasheet. Its thermal resistance is specified at RθJA = 100 °C/W under those conditions. Continuous power dissipation remains limited to 5.0 W (PD), so sustained thermal management relies on PCB copper area-not heatsinks-making the P6SMB120CAHE3_B/H ideal for compact, high-density SMT designs.
P6SMB120CAHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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)
P6SMB120CAHE3_B/H FAQ
1.How can I place an order for P6SMB120CAHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB120CAHE3_B/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 P6SMB120CAHE3_B/H reliable?
The price and inventory of P6SMB120CAHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB120CAHE3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB120CAHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB120CAHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB120CAHE3_B/H?
P6SMB120CAHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB120CAHE3_B/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 P6SMB120CAHE3_B/H?
For technical support, including P6SMB120CAHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB120CAHE3_B/H requirements.
6.How does Aetrix verify that P6SMB120CAHE3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB120CAHE3_B/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 P6SMB120CAHE3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB120CAHE3_B/H?
All P6SMB120CAHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB120CAHE3_B/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 P6SMB120CAHE3_B/H part is unused and in its original packaging.
Return procedure for P6SMB120CAHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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