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onsemi P6SMB110AT3
- Part No.:
- P6SMB110AT3
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB110AT3.pdf
- Description:
- TVS DIODE 94VWM 152VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:3,034
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Product details
Overview
P6SMB110AT3 from ON Semiconductor is a unidirectional 600 W transient voltage suppressor (TVS) diode designed for parallel overvoltage protection of DC power rails and signal lines. It features a 94 V working peak reverse voltage (VRWM), 110 V nominal Zener breakdown voltage (VBR), clamping voltage of 152 V at 4.0 A peak pulse current (IPP), <1 ns response time, and UL 497B recognition for isolated loop circuit protection.
For engineers reviewing the P6SMB110AT3 datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM margin above operating voltage, clamping voltage vs. protected device's absolute maximum rating, surge current capability under 10/1000 µs waveform, thermal derating at elevated ambient temperatures, and Pb-free SURMETIC® SMB package compatibility with automated SMT assembly.
Technical Context
The P6SMB110AT3 operates as a silicon avalanche diode in reverse-biased mode, entering controlled breakdown when transient voltage exceeds its VBR of 110.5 V (min) to 130.5 V (max) at 1 mA test current. Its low zener impedance and fast <1 ns response enable effective suppression of ESD (Class 3 >16 kV HBM) and lightning-induced surges.
Thermal design relies on junction-to-lead resistance of 40 °C/W and junction-to-ambient resistance of 226 °C/W, with 600 W peak power rated at 1 ms pulse width (10/1000 µs waveform). Derating begins above 75°C for lead temperature and above 25°C for ambient temperature per published curves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 94 V - Maximum continuous reverse operating voltage before leakage exceeds 5 µA; must be ≥ system DC bus voltage. |
| VBR @ IT = 1 mA | 110.5–130.5 V - Breakdown range defining turn-on threshold; ensures reliable clamping onset above normal operation. |
| VC @ IPP = 4.0 A | 152 V - Clamped voltage during 10/1000 µs surge; must stay below protected IC's absolute max rating. |
| PPK | 600 W - Peak pulse power handling at TL = 25°C, 1 ms pulse; defines single-event surge robustness. |
| IR @ VRWM | 5 µA - Reverse leakage at 94 V; low enough to avoid measurable power loss in standby. |
| Response Time | <1 ns - Avalanche turn-on speed; critical for sub-microsecond transients like ESD. |
| UL Recognition | UL 497B QVGQ2 - Certified for isolated loop circuit protection; validates safety compliance for telecom/industrial use. |
Pinout & Package
Package: SURMETIC® SMB (Case 403A), surface-mount plastic package with modified L-bend leads, cathode indicated by polarity band, RoHS-compliant (Pb-free).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for reverse-biased operation | Connected to system ground or lower-potential rail; forms current path during clamping. |
| Cathode | High-side connection point | Connected to protected line (e.g., 48 V DC input); carries full surge current into ground via anode. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Handles high-energy transients (e.g., IEC 61000-4-5 Level 4) without failure in compact SMB footprint. |
| UL 497B certification | Validated for isolated loop protection in telecom and industrial interfaces-reduces safety qualification effort. |
| ESD Class 3 (>16 kV HBM) | Withstands human-body-model ESD events common in handling and field environments without degradation. |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage stress on downstream components compared to higher-ratio TVS devices. |
| SURMETIC® package reliability | Void-free transfer-molded construction ensures long-term moisture resistance and solder-joint integrity. |
Applications
| Industrial Power Input Protection | Automotive Body Control Module (BCM) Inputs |
|---|---|
|
Use Scenario: 24 V DC input rail in programmable logic controller (PLC) exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp surges before they reach DC-DC converter input stage. Use Value: 152 V clamping voltage ensures protected converter (rated to 160 V abs max) remains within safe operating limits during 600 W surges. |
Use Scenario: LIN bus or sensor supply line in BCM subjected to ISO 7637-2 pulse 1 (inductive kick) and pulse 2a (load dump). IC Role / Device Role / Timing Role: Standoff TVS on 12 V supply line, leveraging 94 V VRWM to tolerate battery transients while blocking normal operation leakage. Use Value: 4.0 A IPP and <1 ns response meet ISO 7637-2 immunity requirements without adding series impedance or delay. |
| Telecom Line Card Surge Protection | Medical Equipment AC/DC Adapter Input |
|
Use Scenario: Primary-side protection on -48 V telecom power feed entering line card, facing lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: First-stage clamping device shunting surge energy to ground, coordinated with upstream GDT or MOV. Use Value: UL 497B QVGQ2 recognition confirms suitability for telecom isolated loop applications, reducing certification burden. |
Use Scenario: Secondary-side DC output (e.g., +5 V, +12 V) of medical-grade AC/DC adapter exposed to ESD and conducted noise. IC Role / Device Role / Timing Role: Low-leakage (5 µA @ 94 V) TVS on low-power auxiliary rails where standby current budget is constrained. Use Value: Sub-µA leakage preserves battery backup runtime in portable diagnostic devices without compromising surge immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A | Same VRWM (94 V), identical SMB package, but 100 W lower peak power (500 W vs. 600 W); tighter VBR tolerance (110–116 V). | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 where 600 W is required. | Select only if system-level testing confirms 500 W suffices and tighter VBR improves margin. |
| 1.5SMC110A | Higher power (1500 W), DO-214AB package (larger footprint), same 94 V VRWM and 110 V VBR; 2× thermal resistance (RJA = 452 °C/W). | Requires PCB real estate increase; better for sustained surge duty cycles but over-specified for single-event protection. | Choose when legacy 1.5SMC footprint exists or when multi-pulse endurance is prioritized over size. |
Compared with SMBJ110A and 1.5SMC110A, the P6SMB110AT3 delivers optimal balance of 600 W surge capacity, SMB footprint constraints, and UL 497B certification-making it preferred for space-constrained industrial and telecom designs requiring validated loop protection.
Availability
P6SMB110AT3 is available at Aetrix Electronics and suitable for industrial power input protection, automotive body control module inputs, telecom line card surge protection, and medical equipment AC/DC adapter inputs requiring stable component supply and certified transient immunity.
Supply support for P6SMB110AT3 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 (now onsemi) is a global semiconductor supplier specializing in power management, analog, sensors, and discrete devices for automotive, industrial, and communications markets.
The P6SMB110AT3 belongs to the P6SMBxxAT3 series of unidirectional TVS diodes engineered for high-reliability overvoltage protection in harsh environments-designed to replace older SMA/SMB transient suppressors with enhanced surge rating and safety certification.
FAQ
What is the working peak reverse voltage (VRWM) of the P6SMB110AT3?
The P6SMB110AT3 has a VRWM of 94 V, meaning it blocks up to 94 V in reverse bias with ≤5 µA leakage current. This value ensures the device remains non-conductive during normal operation of a 72–80 V DC system while providing sufficient margin before clamping begins at its 110.5 V minimum breakdown voltage.
How does the P6SMB110AT3 compare to bidirectional TVS diodes like P6SMB110CAT3?
The P6SMB110AT3 is unidirectional and optimized for DC rail protection where polarity is fixed, offering lower leakage and tighter VBR control than bidirectional variants. In contrast, P6SMB110CAT3 supports AC or polarity-agnostic signals but exhibits higher leakage and reduced clamping precision due to symmetrical avalanche structure-making P6SMB110AT3 preferable for 24/48 V DC systems.
Is the P6SMB110AT3 RoHS-compliant and what does the "G" suffix indicate?
Yes, the P6SMB110AT3 is RoHS-compliant. The "G" suffix in P6SMB110AT3G explicitly denotes the Pb-free version; however, the base part number P6SMB110AT3 is also manufactured and qualified to the same Pb-free standard per ON Semiconductor's documentation, with identical electrical and thermal performance.
What is the maximum clamping voltage (VC) of the P6SMB110AT3 under surge conditions?
The P6SMB110AT3 clamps to a maximum of 152 V when subjected to its rated 4.0 A peak pulse current (IPP) under the standard 10/1000 µs waveform. This VC value is measured at the device terminals and must be verified in-circuit, as PCB layout inductance can increase effective clamping voltage.
Can the P6SMB110AT3 be used in parallel to increase surge current handling?
No-P6SMB110AT3 should not be paralleled without external balancing resistors, as minor VBR mismatches cause current hogging and thermal runaway. ON Semiconductor specifies single-device operation only; for higher IPP, select a higher-rated part like P6SMB120AT3 (3.6 A IPP) or switch to a 1500 W platform such as 1.5SMC110A.
P6SMB110AT3 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):
- 94V
- Voltage - Breakdown (Min):
- 105V
- Voltage - Clamping (Max) @ Ipp:
- 152V
- Current - Peak Pulse (10/1000µs):
- 4A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 200pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
P6SMB110AT3 FAQ
1.How can I place an order for P6SMB110AT3 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB110AT3 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 P6SMB110AT3 reliable?
The price and inventory of P6SMB110AT3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB110AT3 is usually 5 days.
3.What payment methods are accepted for P6SMB110AT3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB110AT3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB110AT3?
P6SMB110AT3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB110AT3 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 P6SMB110AT3?
For technical support, including P6SMB110AT3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB110AT3 requirements.
6.How does Aetrix verify that P6SMB110AT3 is sourced from the original manufacturer or authorized distributors?
All P6SMB110AT3 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 P6SMB110AT3 meets industry standards.
7.What is the process for return or replacement of P6SMB110AT3?
All P6SMB110AT3 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB110AT3, 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 P6SMB110AT3 part is unused and in its original packaging.
Return procedure for P6SMB110AT3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB110AT3 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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