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onsemi P6SMB100AT3
- Part No.:
- P6SMB100AT3
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB100AT3.pdf
- Description:
- TVS DIODE 85.5VWM 137VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:9,834
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Product details
Overview
P6SMB100AT3 from ON Semiconductor is a unidirectional 600 W transient voltage suppressor (TVS) diode designed for overvoltage protection in DC power rails and signal lines. It features a 85.5 V working peak reverse voltage (VRWM), 100 V breakdown voltage (VBR) at 1 mA test current, clamps to 137 V at 4.4 A peak pulse current (IPP), and responds in <1 ns - deployed in industrial power supplies, automotive ECUs, and telecom interface circuits.
For engineers reviewing the P6SMB100AT3 datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, SMB package mechanical data, real-world clamping behavior, UL 497B certification status, and validated alternative parts for surge protection design-in.
Technical Context
The P6SMB100AT3 operates as a Zener-based unidirectional TVS diode, entering avalanche conduction when reverse voltage exceeds its 100 V nominal breakdown threshold. Its low zener impedance and fast <1 ns response enable effective suppression of ESD (Class 3 >16 kV HBM) and lightning-induced transients per IEC 61000-4-2/5.
It is rated for 600 W peak pulse power (10/1000 µs waveform), with thermal derating starting above 75°C junction temperature. The device uses a thermoset plastic SURMETIC® SMB package (Case 403A), optimized for surface-mount reliability and solderability at 260°C for 10 seconds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 85.5 V - maximum continuous reverse operating voltage before significant leakage; sets minimum system rail voltage compatibility. |
| VBR @ IT = 1 mA | 100 V (min) to 105 V (max) - precise Zener breakdown range defining turn-on threshold under standardized test conditions. |
| VC @ IPP = 4.4 A | 137 V - clamped voltage during 10/1000 µs surge; determines maximum stress imposed on protected downstream circuitry. |
| PPK | 600 W - peak pulse power handling capability; defines single-event surge energy absorption limit. |
| IR @ VRWM | 5 µA max - reverse leakage current at working voltage; ensures minimal standby power loss and signal integrity in high-impedance nodes. |
| Response Time | <1 ns - time from transient onset to clamping activation; critical for protecting fast logic and analog interfaces against sub-microsecond spikes. |
| UL Recognition | UL 497B certified (File #E210057) - validated for isolated loop circuit protection, including strike voltage, endurance, and dielectric withstand testing. |
Pinout & Package
Package: SMB (Surface Mount Body), Case 403A - void-free thermoset plastic housing with modified L-bend leads, cathode polarity band marking, and RoHS-compliant Pb-free finish (G suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink terminal during forward conduction; connected to lower-potential side of protected line. | Provides low VF path (<3.5 V @ 30 A) for fault current return; must be routed with low-inductance trace to minimize overshoot. |
| Cathode | Current source terminal during reverse avalanche clamping; connected to higher-potential side (e.g., VBUS, signal line). | Defines clamping reference point; polarity band identifies this terminal - incorrect orientation disables protection. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W Peak Pulse Power | Enables robust protection against IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges without degradation across ≥1000 events. |
| UL 497B Certification | Validates compliance for telecom and industrial isolated loop applications - includes full strike voltage, endurance, and discharge testing. |
| ESD Robustness | Class 3 (>16 kV HBM) rating ensures immunity to common handling and system-level ESD events without parameter shift. |
| Low Clamping Ratio | VC/VBR ≈ 1.37 - tight ratio minimizes overvoltage margin between breakdown and clamp, reducing stress on protected ICs. |
| SMB Package Reliability | FR-4 board-compatible footprint with 260°C solder tolerance and corrosion-resistant leads supports automated assembly and long-term field stability. |
Applications
| Industrial Power Supply Input Protection | Automotive Body Control Module (BCM) CAN Bus Line Protection |
|---|---|
|
Use Scenario: 24 V DC input stage of programmable logic controller (PLC) power supply exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed across input terminals to shunt surge energy before it reaches upstream rectifier and bulk capacitor. Use Value: Clamps 100 V transients to ≤137 V within <1 ns, preventing MOSFET gate oxide rupture and maintaining regulation during 600 W surges. |
Use Scenario: CAN_H/CAN_L lines in BCM subjected to ESD and battery reverse connection transients. IC Role / Device Role / Timing Role: One P6SMB100AT3 per line (anode to ground, cathode to signal) providing asymmetric overvoltage clamping. Use Value: Limits CAN node voltage excursion to safe levels while preserving signal integrity up to 1 Mbps due to low capacitance (~4.4 pF). |
| Telecom DSL Line Interface Protection | Medical Imaging Equipment Sensor Signal Conditioning |
|
Use Scenario: Primary-side protection on ADSL/VDSL line driver outputs interfacing with external copper pairs. IC Role / Device Role / Timing Role: Parallel-connected TVS suppressing induced lightning surges and AC power cross-talk on twisted-pair lines. Use Value: Withstands repeated 10/1000 µs surges up to 600 W without parameter drift, meeting GR-1089-CORE requirements for network equipment. |
Use Scenario: Analog front-end of MRI gradient coil current monitor exposed to switching noise and EMI coupling. IC Role / Device Role / Timing Role: Low-leakage (≤5 µA @ 85.5 V) TVS placed at op-amp input to prevent latch-up during radiated RF bursts. Use Value: Maintains signal fidelity with <1 ns response and negligible capacitive loading (4.4 pF), avoiding gain/phase error in precision measurement paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100A | Same SMB package, identical VRWM (85.5 V) and VC (137 V), but rated for 600 W with tighter VBR tolerance (100–105 V vs. P6SMB100AT3's 100–105 V). | No functional difference in clamping performance; SMBJ100A has broader industry availability and longer production history. | Select SMBJ100A if sourcing flexibility or legacy design continuity is prioritized over ON Semiconductor-specific qualification. |
| 1.5SMC100A | Larger SMC package (7.1 × 6.2 mm vs. SMB's 4.6 × 3.95 mm), same 85.5 V VRWM and 137 V VC, but higher 1500 W peak power rating. | Requires PCB layout change; suited for higher-energy surge environments where 600 W margin is insufficient. | Choose 1.5SMC100A only when system-level surge testing exceeds IEC 61000-4-5 Level 4 and board space allows larger footprint. |
Compared with SMBJ100A, P6SMB100AT3 offers identical protection specs in the same compact SMB form factor but with ON Semiconductor's UL 497B certification and SURMETIC® package reliability; versus 1.5SMC100A, it trades peak power headroom for 40% smaller board area and lower parasitic inductance.
Availability
P6SMB100AT3 is available at Aetrix Electronics and suitable for industrial power supplies, automotive control units, and telecom infrastructure requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB100AT3 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
ON Semiconductor is a global semiconductor manufacturer specializing in power management, analog, sensor, and discrete solutions for automotive, industrial, and communications markets.
The P6SMB100AT3 belongs to ON Semiconductor's P6SMBxxAT3 series of 600 W unidirectional TVS diodes, engineered for cost-effective, high-reliability overvoltage protection in space-constrained surface-mount applications.
FAQ
What is the maximum clamping voltage of the P6SMB100AT3 under standard surge conditions?
The P6SMB100AT3 clamps to a maximum of 137 V when subjected to its rated peak pulse current of 4.4 A (10/1000 µs waveform). This value is measured per ON Semiconductor's test conditions and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the P6SMB100AT3 RoHS compliant and lead-free?
Yes, the "G" suffix in P6SMB100AT3 indicates a Pb-free package compliant with RoHS Directive 2011/65/EU. The device uses lead-free terminations and thermoset molding compound, qualified for reflow soldering at 260°C for 10 seconds, and carries no exemptions for lead content.
Does the P6SMB100AT3 meet UL safety standards for industrial equipment?
Yes, the P6SMB100AT3 is UL Recognized under UL 497B (File #E210057) for isolated loop circuit protection. It passed full validation including strike voltage breakdown, endurance conditioning, dielectric withstand, and discharge testing - not just flammability screening - making it suitable for certified industrial and telecom systems.
How does the P6SMB100AT3 compare to bidirectional TVS diodes like P6SMB100CAT3?
The P6SMB100AT3 is unidirectional and protects against positive-going transients only (cathode to higher potential), whereas P6SMB100CAT3 is bidirectional and handles both polarities. Use P6SMB100AT3 on DC-biased lines like power rails; choose P6SMB100CAT3 for AC-coupled or floating signal lines such as RS-485 or Ethernet PHY interfaces.
What is the junction capacitance of the P6SMB100AT3 at zero bias?
The junction capacitance of the P6SMB100AT3 is 4.4 pF at 0 V bias and 1 MHz, per ON Semiconductor's characterization data. This low value minimizes signal distortion and insertion loss in high-speed data lines, supporting reliable operation in applications like CAN FD and industrial Ethernet where capacitive loading must remain below 5 pF.
P6SMB100AT3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-214AA, SMB
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 4.4A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 215pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
P6SMB100AT3 FAQ
1.How can I place an order for P6SMB100AT3 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB100AT3 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 P6SMB100AT3 reliable?
The price and inventory of P6SMB100AT3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB100AT3 is usually 5 days.
3.What payment methods are accepted for P6SMB100AT3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB100AT3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB100AT3?
P6SMB100AT3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB100AT3 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 P6SMB100AT3?
For technical support, including P6SMB100AT3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB100AT3 requirements.
6.How does Aetrix verify that P6SMB100AT3 is sourced from the original manufacturer or authorized distributors?
All P6SMB100AT3 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 P6SMB100AT3 meets industry standards.
7.What is the process for return or replacement of P6SMB100AT3?
All P6SMB100AT3 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB100AT3, 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 P6SMB100AT3 part is unused and in its original packaging.
Return procedure for P6SMB100AT3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB100AT3 Tags
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