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onsemi P6SMB62CAT3
- Part No.:
- P6SMB62CAT3
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB62CAT3.pdf
- Description:
- TVS DIODE 53VWM 85VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:7,540
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Product details
Overview
P6SMB62CAT3 from ON Semiconductor is a bidirectional 600 W transient voltage suppressor (TVS) diode designed for overvoltage protection in DC power rails and signal lines. It features a 53 V working peak reverse voltage (VRWM), 62 V nominal Zener breakdown voltage (VBR) at 1 mA test current, and clamps transients to ≤85 V at 7.1 A peak pulse current - enabling robust surge suppression in industrial power supplies and automotive ECUs.
For engineers reviewing the P6SMB62CAT3 datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage margin vs. protected IC's absolute maximum rating, VRWM alignment with steady-state operating voltage, UL 497B certification for isolated loop protection, and SMB package thermal performance under repetitive surge conditions.
Technical Context
The P6SMB62CAT3 operates as a bidirectional avalanche diode, symmetrically clamping positive and negative transients above ±65.1 V (max VBR) with sub-1 ns response time. Its low zener impedance and fast turn-on ensure minimal overshoot when placed close to sensitive circuitry.
It is rated for 600 W non-repetitive peak pulse power (10/1000 μs waveform), derates linearly above 75°C junction temperature, and exhibits 170 pF typical junction capacitance at 0 V bias - making it suitable for DC/low-frequency protection but not high-speed data lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600 W @ 10/1000 μs waveform - sustains single high-energy surges without failure |
| Working Peak Reverse Voltage | 53 V - must be ≥ continuous operating voltage of protected circuit |
| Breakdown Voltage (VBR) | 62 V (nominal) @ 1 mA - defines onset of clamping; min/max 58.9–65.1 V ensures design margin |
| Clamping Voltage (VC) | ≤85 V @ 7.1 A IPP - maximum voltage seen by downstream components during surge |
| Junction Capacitance | 170 pF @ 0 V, 1 MHz - negligible loading on DC/low-frequency rails; unsuitable for >10 Mbps data lines |
| ESD Rating | Class 3 (>16 kV HBM) - exceeds IEC 61000-4-2 Level 4 for system-level ESD immunity |
| UL Recognition | UL 497B (QVGQ2, File #E210057) - certified for isolated loop circuit protection in safety-critical systems |
Pinout & Package
Package: SMB (DO-214AA, Case 403A), surface-mount, Pb-free, void-free thermosetting plastic body with modified L-bend leads for enhanced solder joint reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked band side) | Transient conduction path (bidirectional) | Acts as cathode during positive transients; anode during negative transients - no polarity marking required per spec |
| Anode (unmarked side) | Transient conduction path (bidirectional) | Acts as anode during positive transients; cathode during negative transients - symmetric terminal function |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating DC rails without polarity concerns |
| 600 W surge rating | Withstands IEC 61000-4-5 Level 4 (4 kV line-to-line, 2 Ω source impedance) without degradation |
| UL 497B recognition | Validated for use in telecom and industrial isolated loop protectors - reduces safety certification effort |
| Sub-1 ns response time | Minimizes voltage overshoot before clamping engages - critical for protecting <100 V logic ICs |
| Low leakage (<5 μA @ 53 V) | Prevents excessive standby current in battery-powered or energy-sensitive systems |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting 48 V DC input stage of programmable logic controller (PLC) power supply against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamping device placed directly across input terminals to limit transient voltage to ≤85 V. Use Value: Prevents damage to upstream rectifier and downstream DC/DC controller ICs during 12 V/24 V/48 V system surges. | Use Scenario: Safeguarding LIN bus transceiver and microcontroller I/O pins in door module against ESD and battery reversal-induced transients. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted at connector entry point to clamp fast transients before reaching silicon. Use Value: Maintains signal integrity on 20 kbps LIN bus while meeting ISO 10605 30 kV contact discharge requirement. |
| Medical Equipment Input Stage | Telecom Isolated Data Interface |
Use Scenario: Overvoltage protection on auxiliary 24 V DC input of patient monitor power distribution board exposed to hospital-grade surge environments. IC Role / Device Role / Timing Role: UL 497B-certified TVS used in primary-side protection of isolated DC/DC converter input. Use Value: Supports regulatory compliance for IEC 60601-1 3rd edition surge immunity (4 kV line-earth) without additional filtering. | Use Scenario: Transient suppression on RS-485 isolated interface of base station control unit connected to outdoor antenna lines. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential pair to clamp common-mode surges induced by lightning coupling. Use Value: Enables reliable operation under IEC 61000-4-5 2 kV surge tests while preserving signal rise/fall times due to low CJ. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64CA | 64 V VBR (min 60.8 V), 600 W, same SMB package; slightly higher clamping (87.1 V @ 6.9 A) | Marginally tighter VBR tolerance but lower surge current rating than P6SMB62CAT3 | Select when exact 62 V nominal breakdown is not required and higher VBR min threshold improves noise immunity |
| 1.5SMC62CA | Same 62 V VBR, 1500 W rating, larger SMC (DO-214AB) package; 100 pF CJ | Higher surge capacity but requires more PCB area and has different thermal resistance (RJA = 150 °C/W vs. 226 °C/W) | Choose for high-reliability 1500 W surge environments where board space permits larger footprint |
Compared with SMBJ64CA and 1.5SMC62CA, the P6SMB62CAT3 offers optimal balance of 62 V nominal breakdown accuracy, UL 497B certification, and compact SMB footprint - making it preferred for space-constrained industrial and automotive modules requiring validated loop protection.
Availability
P6SMB62CAT3 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, medical equipment input stages, and telecom isolated interfaces requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB62CAT3 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 manufacturer specializing in power management, analog, sensor, and discrete devices for automotive, industrial, cloud, and IoT applications.
The P6SMB62CAT3 belongs to the P6SMBxxCAT3 series of 600 W bidirectional TVS diodes, engineered specifically for cost-sensitive, high-reliability overvoltage protection in harsh-environment DC power and signal circuits.
FAQ
What is the clamping voltage of the P6SMB62CAT3 at its rated peak pulse current?
The P6SMB62CAT3 has a maximum clamping voltage (VC) of 85 V at 7.1 A peak pulse current (IPP), measured using the standard 10/1000 μs double-exponential waveform. This value defines the upper voltage limit imposed on protected circuitry during a surge event and is confirmed in the Electrical Characteristics table of the official ON Semiconductor datasheet Rev. 10.
Is the P6SMB62CAT3 unidirectional or bidirectional?
The P6SMB62CAT3 is a bidirectional transient voltage suppressor, as indicated by the "C" suffix in its part number and explicitly stated in the ON Semiconductor datasheet header. It clamps both positive- and negative-polarity transients symmetrically, with identical electrical characteristics in either direction - eliminating need for polarity-aware placement on PCB.
Does the P6SMB62CAT3 meet UL 497B requirements?
Yes, the P6SMB62CAT3 carries UL 497B recognition under File #E210057 (QVGQ2 category) for isolated loop circuit protection. This certification covers testing for strike voltage breakdown, endurance conditioning, dielectric withstand, and discharge performance - confirming suitability for safety-critical telecom and industrial isolation barriers.
What is the junction-to-ambient thermal resistance (RJA) of the P6SMB62CAT3?
The P6SMB62CAT3 has a junction-to-ambient thermal resistance (RJA) of 226 °C/W when mounted on an FR-4 board using ON Semiconductor's minimum recommended footprint (Case 403A outline). This value assumes zero airflow and defines the steady-state temperature rise per watt of dissipated power under normal ambient conditions.
Can the P6SMB62CAT3 be used in automotive applications?
Yes, the P6SMB62CAT3 is qualified for automotive applications including body control modules and infotainment power inputs. It meets ISO 7637-2 pulse 5a/b (load dump) and ISO 10605 ESD requirements when properly laid out, and its −65 °C to +150 °C operating temperature range supports under-hood and cabin environments.
P6SMB62CAT3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-214AA, SMB
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 53V
- Voltage - Breakdown (Min):
- 58.9V
- Voltage - Clamping (Max) @ Ipp:
- 85V
- Current - Peak Pulse (10/1000µs):
- 7.1A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 170pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
P6SMB62CAT3 FAQ
1.How can I place an order for P6SMB62CAT3 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB62CAT3 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 P6SMB62CAT3 reliable?
The price and inventory of P6SMB62CAT3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB62CAT3 is usually 5 days.
3.What payment methods are accepted for P6SMB62CAT3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB62CAT3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB62CAT3?
P6SMB62CAT3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB62CAT3 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 P6SMB62CAT3?
For technical support, including P6SMB62CAT3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB62CAT3 requirements.
6.How does Aetrix verify that P6SMB62CAT3 is sourced from the original manufacturer or authorized distributors?
All P6SMB62CAT3 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 P6SMB62CAT3 meets industry standards.
7.What is the process for return or replacement of P6SMB62CAT3?
All P6SMB62CAT3 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB62CAT3, 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 P6SMB62CAT3 part is unused and in its original packaging.
Return procedure for P6SMB62CAT3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB62CAT3 Tags
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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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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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