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onsemi P6SMB13CAT3G
- Part No.:
- P6SMB13CAT3G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB13CAT3G.pdf
- Description:
- TVS DIODE 11.1VWM 18.2VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:9,333
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Product details
Overview
P6SMB13CAT3G from onsemi is a bidirectional 600 W transient voltage suppressor (TVS) diode designed for parallel overvoltage protection of sensitive electronics. It features a 11.1 V working peak reverse voltage (VRWM), 13.05 V nominal breakdown voltage (VBR) at 1 mA test current, and clamps to ≤18.2 V at 33 A peak pulse current - enabling robust surge suppression in power rails and I/O lines.
For engineers reviewing the P6SMB13CAT3G datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage margin vs. protected circuit's absolute maximum rating, peak pulse current capability under 10/1000 µs waveform, UL 497B recognition for isolated loop protection, and SMB (DO-214AA) package compatibility with high-density PCB layouts.
Technical Context
The P6SMB13CAT3G operates as a bidirectional Zener-based TVS, symmetrically clamping positive and negative transients exceeding its breakdown threshold. Its low zener impedance and <1 ns response time ensure fast voltage limiting without significant overshoot when properly laid out.
It is rated for 600 W non-repetitive peak pulse power (10/1000 µs waveform), with thermal derating above 75°C junction temperature and a maximum junction-to-lead thermal resistance of 40 °C/W. The device meets Class 3 ESD immunity (>16 kV HBM) and UL 497B certification for isolated loop circuit protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Peak Reverse Voltage (VRWM) | 11.1 V - must be ≥ continuous operating voltage of protected line to avoid leakage-induced power loss |
| Breakdown Voltage (VBR) @ IT = 1 mA | 12.4–13.7 V - defines precise conduction onset; 13.05 V nominal ensures predictable turn-on across temperature |
| Clamping Voltage (VC) @ IPP = 33 A | ≤18.2 V - maximum voltage seen by downstream circuit during 10/1000 µs surge; critical for IC survival |
| Peak Pulse Power (PPK) | 600 W @ 1 ms - supports high-energy surges per IEC 61000-4-5 Level 4 (4 kV/2 Ω) |
| Junction Capacitance (Cj) | 740 pF @ 0 V - low enough for DC/low-speed signal lines; unsuitable for >10 Mbps data lines |
| Leakage Current (IR) @ VRWM | ≤5 µA - negligible standby power draw in battery-powered or high-impedance sensing circuits |
| ESD Rating (HBM) | Class 3 (>16 kV) - exceeds IEC 61000-4-2 Level 4 for system-level ESD robustness |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, Pb-free, void-free thermosetting plastic case per Case Outline 403A. Dimensions: 4.32 mm × 2.13 mm × 1.02 mm (L × W × H); polarity band not marked (bidirectional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked end) | Anode/Cathode terminal (bidirectional) | No functional polarity - either end serves as cathode depending on transient polarity; symmetric clamping |
| Anode (unmarked end) | Anode/Cathode terminal (bidirectional) | Electrically identical to cathode pin; device conducts identically for +ve or –ve transients |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional transient suppression | Protects AC-coupled or dual-rail circuits (e.g., RS-485, CAN, audio) without polarity concerns |
| UL 497B recognition (QVGQ2) | Validated for isolated loop protection in telecom and industrial interfaces - reduces safety certification effort |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes voltage stress on protected ICs - e.g., clamps 13 V rail to ≤18.2 V instead of >22 V |
| Fast response time <1 ns | Engages before most microsecond-scale transients fully develop - essential for protecting CMOS inputs |
| High surge capability (33 A IPP) | Withstands repeated 10/1000 µs surges up to 600 W without degradation per JEDEC JESD22-A114 |
Applications
| Industrial Power Supply Input Protection | Automotive Body Control Module (BCM) I/O |
|---|---|
|
Use Scenario: 12 V DC input rail exposed to load dump (ISO 7637-2 Pulse 5a) and jump-start transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converter input. Use Value: Limits voltage to ≤18.2 V during 33 A surge, preventing damage to 24 V-rated input stage components. |
Use Scenario: LIN bus or sensor analog input lines subject to ESD and inductive switching noise. IC Role / Device Role / Timing Role: Localized TVS at connector entry point, shunting transients before signal conditioning ICs. Use Value: 16 kV HBM ESD rating and <1 ns response prevent latch-up or gate oxide rupture in MCU analog front-end. |
| Medical Equipment Isolated Signal Interface | POS Terminal Serial Communication Port |
|
Use Scenario: Isolated RS-232 or RS-485 lines connecting patient monitors to central stations. IC Role / Device Role / Timing Role: Bidirectional clamp on differential pair, compliant with UL 497B for isolated loop safety. Use Value: UL recognition validates design for medical regulatory submission; symmetric clamping protects both polarities of differential signals. |
Use Scenario: RS-232 or USB VBUS lines in retail terminals exposed to user-handling ESD and cable coupling noise. IC Role / Device Role / Timing Role: First-line defense at board edge, mounted adjacent to connector with minimal trace inductance. Use Value: 740 pF capacitance avoids signal integrity issues on 115.2 kbps RS-232; 600 W rating handles multi-kV contact discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13CA | Same SMB package, 600 W rating, but higher clamping voltage (21.5 V @ 27.3 A) and lower IPP (27.3 A) | Less effective clamping margin for 12 V systems - may exceed protected IC's absolute max rating | Select P6SMB13CAT3G when tighter VC (≤18.2 V) is required for 12 V rail protection |
| 1.5SMC13CA | Higher power (1500 W), larger SMC package (DO-214AB), same VRWM (11.1 V) and VBR (13.05 V) | Requires larger PCB footprint; suited for higher-energy threats (e.g., IEC 61000-4-5 Level 5) | Choose P6SMB13CAT3G for space-constrained designs where 600 W suffices and SMC layout is impractical |
Compared with SMAJ13CA and 1.5SMC13CA, the P6SMB13CAT3G delivers superior clamping performance in the same SMB footprint while maintaining UL 497B recognition - making it optimal for cost-sensitive, space-limited 12 V industrial and automotive interfaces requiring certified surge protection.
Availability
P6SMB13CAT3G is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, medical isolated interfaces, and POS terminal serial ports requiring stable component supply and full compliance traceability.
Supply support for P6SMB13CAT3G 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The P6SMB13CAT3G belongs to onsemi's P6SMBxxCAT3 series of 600 W SMB-packaged TVS diodes, engineered for high-reliability transient suppression in harsh environments - particularly where UL 497B certification, bidirectional operation, and tight clamping margins are mandatory.
FAQ
What is the clamping voltage of the P6SMB13CAT3G at its rated peak pulse current?
The P6SMB13CAT3G has a maximum clamping voltage (VC) of 18.2 V when subjected to its rated peak pulse current (IPP) of 33 A under the standard 10/1000 µs waveform. This value is measured at TJ = 25°C and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within their absolute maximum ratings.
Is the P6SMB13CAT3G unidirectional or bidirectional, and how does that affect its use?
The P6SMB13CAT3G is a bidirectional TVS diode, meaning it provides symmetrical clamping for both positive and negative transients. This eliminates polarity concerns during placement and makes it ideal for AC-coupled lines, differential buses (e.g., RS-485), or any application where voltage reversals may occur - unlike unidirectional variants which only protect against one polarity.
Does the P6SMB13CAT3G meet UL safety standards, and for what use case?
Yes, the P6SMB13CAT3G is UL Recognized under file E210057 to UL 497B for "Protectors" - specifically validated for isolated loop circuit protection. This certification covers tests including strike voltage breakdown, endurance conditioning, and dielectric withstand, making it suitable for telecom interfaces, medical isolation barriers, and industrial fieldbus systems requiring safety-agency approval.
What is the thermal derating behavior of the P6SMB13CAT3G above ambient temperature?
The P6SMB13CAT3G's DC power dissipation derates linearly above TA = 25°C at 4.4 mW/°C, dropping from 0.55 W at 25°C to zero at 150°C. For pulsed operation, peak power remains 600 W up to TL = 75°C, then derates at 25 mW/°C above that. These curves are defined in the datasheet's Figure 3 and must be applied in thermally constrained enclosures or high-ambient environments.
Can the P6SMB13CAT3G replace a P6SMB12CAT3G or P6SMB15CAT3G in an existing design?
The P6SMB13CAT3G is not a direct replacement for P6SMB12CAT3G or P6SMB15CAT3G due to differences in VRWM (11.1 V vs. 10.2 V / 12.8 V) and clamping voltage (18.2 V vs. 16.7 V / 21.2 V). Substitution requires re-evaluation of clamping margin relative to protected circuit voltage ratings and surge current requirements - especially where tighter or looser voltage limits are critical.
P6SMB13CAT3G 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):
- 11.1V
- Voltage - Breakdown (Min):
- 12.4V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 33A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 740pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
P6SMB13CAT3G FAQ
1.How can I place an order for P6SMB13CAT3G through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB13CAT3G 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 P6SMB13CAT3G reliable?
The price and inventory of P6SMB13CAT3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB13CAT3G is usually 5 days.
3.What payment methods are accepted for P6SMB13CAT3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB13CAT3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB13CAT3G?
P6SMB13CAT3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB13CAT3G 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 P6SMB13CAT3G?
For technical support, including P6SMB13CAT3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB13CAT3G requirements.
6.How does Aetrix verify that P6SMB13CAT3G is sourced from the original manufacturer or authorized distributors?
All P6SMB13CAT3G 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 P6SMB13CAT3G meets industry standards.
7.What is the process for return or replacement of P6SMB13CAT3G?
All P6SMB13CAT3G units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB13CAT3G, 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 P6SMB13CAT3G part is unused and in its original packaging.
Return procedure for P6SMB13CAT3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB13CAT3G Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
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