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onsemi P6SMB82CAT3G
- Part No.:
- P6SMB82CAT3G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB82CAT3G.pdf
- Description:
- TVS DIODE 70.1VWM 113VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:13,388
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Product details
Overview
P6SMB82CAT3G from ON Semiconductor is a bidirectional 600 W transient voltage suppressor (TVS) diode designed for parallel overvoltage protection of sensitive electronics. It features a working peak reverse voltage of 70.1 V, clamping voltage of 113 V at 5.3 A peak pulse current, and sub-1 ns response time - enabling robust surge suppression in power supply inputs and industrial I/O interfaces.
For engineers reviewing the P6SMB82CAT3G datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM ≥ system DC bus voltage, VC margin relative to protected IC absolute maximum ratings, UL 497B certification for isolated loop safety, and SMB package thermal performance under repetitive surge conditions.
Technical Context
The P6SMB82CAT3G operates as a silicon avalanche diode with bidirectional clamping action, triggered when transient voltage exceeds its breakdown threshold (77.9–86.1 V). Its low zener impedance and fast turn-on ensure effective energy diversion during ESD or lightning-induced surges.
It is rated for 600 W non-repetitive peak power (10/1000 µs waveform), supports 16 kV HBM ESD immunity, and maintains stable clamping up to +150°C junction temperature - making it suitable for automotive and industrial environments where thermal derating and reliability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Peak Reverse Voltage (VRWM) | 70.1 V - must be ≥ continuous operating voltage of protected circuit to avoid leakage or power loss |
| Breakdown Voltage (VBR) Min/Max | 77.9 V / 86.1 V @ 1 mA - defines voltage threshold at which clamping begins under controlled test conditions |
| Clamping Voltage (VC) | 113 V @ 5.3 A IPP - maximum voltage seen by downstream components during worst-case 600 W surge |
| Peak Pulse Power (PPK) | 600 W @ 1 ms - energy-handling capability for transient events per IEC 61000-4-5 Level 4 compliance |
| Junction Capacitance (Cj) | 130 pF @ 0 V - impacts high-frequency signal integrity; requires layout mitigation in data-line applications |
| Leakage Current (IR) | <5 µA @ 70.1 V - ensures minimal standby power loss in always-on systems |
| Response Time | <1 ns - enables suppression before transient energy damages downstream ICs or MOSFETs |
Pinout & Package
Package: SMB (Case 403A), surface-mount, Pb-free, void-free thermosetting plastic housing with modified L-bend leads for enhanced pad contact area. Polarity band not indicated due to bidirectional symmetry.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (Bidirectional) | Common terminal pair | Either end serves as anode or cathode depending on polarity of transient - no orientation required in PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| UL 497B Recognition (QVGQ2) | Validated for isolated loop circuit protection - eliminates need for separate safety certification in telecom and industrial control designs |
| AEC-Q101 Qualified (SZ variant) | Qualified for automotive-grade reliability including temperature cycling, humidity bias, and surge endurance - applicable to P6SMB82CAT3G via family qualification |
| ESD Rating Class 3 (>16 kV HBM) | Withstands human-body model discharges without degradation - reduces field failure risk in handling and end-user environments |
| Thermal Resistance (RJL) | 25 °C/W junction-to-lead - enables 3.0 W DC power dissipation at 75°C lead temperature with proper copper pad design |
Applications
| Industrial Power Supply Input Protection | Automotive Body Control Module (BCM) I/O 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: Bidirectional TVS clamp placed across input terminals to limit transient voltage before DC-DC converter stage. Use Value: Clamps 113 V surges within nanoseconds, protecting 36 V-rated input capacitors and primary-side controllers without derating margin loss. |
Use Scenario: LIN bus transceiver interface in door module subjected to battery disconnect transients and ESD events. IC Role / Device Role / Timing Role: Parallel-connected TVS suppressing fast-rising spikes while maintaining signal integrity on 19.2 kbps serial line. Use Value: 130 pF capacitance and <1 ns response prevent data corruption during 10/1000 µs surges, meeting ISO 10605 requirements. |
| Medical Equipment AC/DC Adapter Interface | Telecom DSL Line Card Surge Protection |
Use Scenario: Secondary-side 48 V output of medical-grade AC/DC adapter connected to patient-monitoring sensor interface. IC Role / Device Role / Timing Role: Output-side TVS safeguarding against backfeed transients and secondary-side switching noise coupling. Use Value: UL 497B recognition satisfies isolation barrier safety requirements for Class II medical devices without additional creepage/clearance redesign. |
Use Scenario: Front-end protection of ADSL/VDSL line card PHY interface exposed to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Paired bidirectional TVS on tip/ring lines shunting differential and common-mode energy into chassis ground. Use Value: 600 W peak power rating meets ITU-T K.20/K.21 immunity levels for central office equipment with minimal board space. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ85A | Unidirectional; 85 V standoff; 135 V clamping @ 4.4 A; SMA package (smaller footprint, lower thermal mass) | Requires correct polarity placement; less suitable for AC-coupled or floating interfaces | Select when polarity is fixed and board space is constrained; verify VRWM ≥ 70.1 V system voltage |
| 1.5SMC82CA | Same bidirectional function; 82 V nominal breakdown; 113 V clamping @ 5.3 A; SMC package (higher thermal mass, 1.5 kW rating) | Larger footprint and higher cost; better suited for high-repetition-rate surges | Choose for legacy SMC-compatible layouts or where 1.5 kW peak power headroom is needed beyond 600 W |
Compared with SMAJ85A and 1.5SMC82CA, the P6SMB82CAT3G offers optimal balance of SMB footprint compatibility, UL 497B certification, and 600 W surge capability - making it preferred for new industrial and automotive designs requiring standardized, safety-recognized protection without over-engineering.
Availability
P6SMB82CAT3G is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, medical device adapters, and telecom line cards requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB82CAT3G 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, cloud, and medical markets.
The P6SMB82CAT3G belongs to ON Semiconductor's SMB-series transient voltage suppressor family, engineered specifically for high-reliability overvoltage protection in harsh environments where UL recognition, AEC-Q101 qualification, and consistent clamping performance are mandatory.
FAQ
What is the exact breakdown voltage range for P6SMB82CAT3G?
The P6SMB82CAT3G has a specified breakdown voltage (VBR) range of 77.9 V to 86.1 V at 1 mA test current, measured at 25°C ambient. This range reflects manufacturing tolerance and ensures reliable triggering above the 70.1 V working peak reverse voltage while maintaining safe margin below protected circuit absolute maximum ratings. The P6SMB82CAT3G datasheet confirms this using standard JEDEC test conditions.
Is P6SMB82CAT3G unidirectional or bidirectional?
The P6SMB82CAT3G is a bidirectional transient voltage suppressor, meaning it clamps voltage transients of either polarity symmetrically across its terminals. This eliminates polarity concerns during PCB placement and makes it ideal for AC-coupled lines, floating grounds, and differential interfaces - unlike unidirectional variants such as SMAJ85A. The P6SMB82CAT3G product marking and datasheet explicitly state bidirectional operation.
Does P6SMB82CAT3G meet UL 497B requirements?
Yes, the P6SMB82CAT3G is UL Recognized under file E210057 for protector classification QVGQ2 per UL 497B. It passed rigorous tests including strike voltage breakdown, endurance conditioning, dielectric withstand, and discharge validation - confirming suitability for isolated loop circuits in telecom, industrial controls, and medical equipment. This UL 497B recognition applies directly to the P6SMB82CAT3G part number.
What is the maximum clamping voltage of P6SMB82CAT3G under surge conditions?
The P6SMB82CAT3G clamps to a maximum of 113 V when subjected to its rated peak pulse current of 5.3 A (10/1000 µs waveform). This value is guaranteed across temperature and lifetime, and represents the highest voltage downstream components will experience during a 600 W transient event. The P6SMB82CAT3G datasheet specifies this as VC under "Electrical Characteristics" with test conditions clearly defined.
Can P6SMB82CAT3G be used in automotive applications?
Yes - the P6SMB82CAT3G is qualified to AEC-Q101 when supplied in the SZ-prefix variant (e.g., SZP6SMB82CAT3G), and the entire P6SMBxxCAT3G family shares the same construction, materials, and qualification basis. While the standard P6SMB82CAT3G is not marked with SZ, its design, testing, and documentation confirm automotive-grade reliability for body electronics, infotainment, and powertrain subsystems where transient immunity is critical.
P6SMB82CAT3G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 70.1V
- Voltage - Breakdown (Min):
- 77.9V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 5.3A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 130pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
P6SMB82CAT3G FAQ
1.How can I place an order for P6SMB82CAT3G through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB82CAT3G 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 P6SMB82CAT3G reliable?
The price and inventory of P6SMB82CAT3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB82CAT3G is usually 5 days.
3.What payment methods are accepted for P6SMB82CAT3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB82CAT3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB82CAT3G?
P6SMB82CAT3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB82CAT3G 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 P6SMB82CAT3G?
For technical support, including P6SMB82CAT3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB82CAT3G requirements.
6.How does Aetrix verify that P6SMB82CAT3G is sourced from the original manufacturer or authorized distributors?
All P6SMB82CAT3G 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 P6SMB82CAT3G meets industry standards.
7.What is the process for return or replacement of P6SMB82CAT3G?
All P6SMB82CAT3G units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB82CAT3G, 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 P6SMB82CAT3G part is unused and in its original packaging.
Return procedure for P6SMB82CAT3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB82CAT3G Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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