My Inquiry
My Account
onsemi P6SMB7.5AT3G
- Part No.:
- P6SMB7.5AT3G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB7.5AT3G.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:1,407
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB7.5AT3G from ON Semiconductor is a unidirectional 600 W peak power TVS diode designed for transient overvoltage protection in DC power rails and signal lines. It features a 7.5 V nominal Zener breakdown voltage (VBR), 10.5 V maximum clamping voltage (VC) at 10 A peak pulse current (IPP), and <1 ns response time - enabling robust ESD and surge suppression in automotive power supplies, industrial I/O interfaces, and AC/DC adapter input stages.
For engineers reviewing the P6SMB7.5AT3G datasheet, pinout, applications, or equivalent options, key selection criteria include working peak reverse voltage (VRWM = 6.4 V), low zener impedance, UL 497B recognition for isolated loop protection, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This device operates as a unidirectional avalanche diode, conducting only during reverse overvoltage events above its VBR threshold while presenting minimal leakage (<500 µA at 6.4 V) under normal bias. Its silicon junction design delivers fast turn-on with sub-nanosecond response and low dynamic impedance to limit transient energy delivered to downstream circuitry.
The P6SMB7.5AT3G uses a planar passivated junction in an SMB (DO-214AA) package with cathode band polarity marking, optimized for surface-mount PCB layout with short trace paths to minimize inductive overshoot. Thermal resistance from junction-to-lead is 40 °C/W, supporting high-reliability operation up to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 6.4 V - Maximum continuous reverse operating voltage before clamping begins; matches 5 V rail with margin or 6.3 V battery systems. |
| VBR @ IT = 10 mA | 7.13–7.88 V - Tight 10% tolerance breakdown range ensures predictable trigger point across temperature and unit variation. |
| VC @ IPP = 10 A | 10.5 V - Clamped voltage during 8.3 ms surge; limits protected IC inputs to safe levels below typical 12 V logic thresholds. |
| IPP | 10 A - Peak pulse current capability per 10/1000 µs waveform; supports IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge immunity. |
| Leakage @ VRWM | <500 µA - Low reverse leakage preserves standby power budget in always-on circuits like CAN transceivers or sensor nodes. |
| ESD Rating | Class 3 (>16 kV HBM) - Meets stringent electrostatic discharge immunity requirements for exposed connectors and front-panel interfaces. |
| UL Recognition | UL 497B - Certified for isolated loop circuit protection, validating performance in telecom, medical, and industrial safety-critical applications. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, void-free thermosetting plastic case with modified L-bend leads and cathode polarity band. Dimensions: 4.32 mm × 3.56 mm × 2.30 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for reverse-biased operation | Connected to system ground or lower-potential rail; defines conduction direction during transient events. |
| Cathode | High-side connection point | Connected to protected line (e.g., 5 V supply); conducts when line voltage exceeds VBR relative to ground. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Handles high-energy transients (e.g., ISO 7637-2 Pulse 5a) without degradation, enabling single-device protection for 12 V automotive subsystems. |
| AEC-Q101 qualified | Validated for automotive underhood and cabin environments, including temperature cycling, humidity, and mechanical shock testing. |
| UL 497B certified | Approved for use in safety-isolated circuits such as PoE injectors, medical sensor interfaces, and industrial fieldbus terminations. |
| <1 ns response time | Minimizes voltage overshoot before clamping engages, critical for protecting fast-switching MOSFET gates and microcontroller I/O pins. |
| Pb-free & RoHS compliant | Meets global environmental compliance mandates without compromising surge performance or thermal reliability. |
Applications
| Automotive Power Distribution | Industrial PLC Digital Inputs |
|---|---|
Use Scenario: Protecting 12 V supply lines feeding body control modules against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between fused 12 V rail and local regulator input. Use Value: Clamps transients to ≤10.5 V, preventing damage to 15 V-rated LDOs and ensuring uninterrupted MCU operation during ISO 16750-2 tests. |
Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from induced surges on factory floor wiring. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor at terminal block entry point, upstream of optocoupler input stage. Use Value: Limits voltage excursion to safe levels for 30 V-rated optocouplers, maintaining signal integrity during IEC 61000-4-4 EFT bursts. |
| Medical Equipment Power Rails | AC/DC Adapter Input Protection |
Use Scenario: Safeguarding isolated 5 V and 3.3 V auxiliary rails in patient-monitoring devices from ESD and coupling noise. IC Role / Device Role / Timing Role: Localized TVS on secondary-side DC outputs of isolated flyback converters. Use Value: UL 497B certification validates suitability for medically isolated circuits, ensuring no risk of creepage/clearance compromise during surge events. |
Use Scenario: Front-end protection on universal-input (90–264 VAC) AC/DC adapters against lightning-induced surges on mains lines. IC Role / Device Role / Timing Role: First-stage clamp after bridge rectifier, limiting DC bus overvoltage before bulk capacitor and controller IC. Use Value: 600 W rating absorbs 10/1000 µs surges up to 1 kV, extending capacitor life and preventing controller latch-up in Class II power supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5A | Lower peak power (400 W), same VRWM (6.4 V), identical SMB package but higher VC (12.0 V @ 10 A). | Less suitable for high-energy automotive load dump; acceptable for consumer electronics with lower surge stress. | Select SMAJ7.5A only if system-level surge testing confirms 400 W sufficiency and 12.0 V clamping is within downstream IC tolerances. |
| 1.5SMC7.5A | Higher peak power (1500 W), larger SMC (DO-214AB) package, same VRWM (6.4 V), lower VC (10.0 V @ 12.3 A). | Requires PCB redesign due to 7.1 mm × 6.2 mm footprint; better for industrial motor drives with repetitive surges. | Choose 1.5SMC7.5A when surge energy exceeds 600 W limits or when lower clamping voltage justifies larger board area and cost premium. |
Compared with SMAJ7.5A and 1.5SMC7.5A, the P6SMB7.5AT3G offers optimal balance of 600 W surge handling, compact SMB footprint, and 10.5 V clamping - making it the preferred choice for space-constrained automotive and industrial designs requiring AEC-Q101 and UL 497B validation.
Availability
P6SMB7.5AT3G is available at Aetrix Electronics and suitable for automotive power distribution, industrial PLC digital inputs, and medical equipment power rails requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB7.5AT3G 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, sensors, and discrete devices for automotive, industrial, and cloud power applications.
The P6SMB7.5AT3G belongs to ON Semiconductor's SMB-series transient voltage suppressors - engineered specifically for high-reliability overvoltage protection in harsh environments where AEC-Q101 qualification, UL recognition, and consistent clamping performance are mandatory.
FAQ
What is the maximum clamping voltage of the P6SMB7.5AT3G at its rated peak pulse current?
The P6SMB7.5AT3G has a maximum clamping voltage (VC) of 10.5 V at 10 A peak pulse current (IPP) under the standard 10/1000 µs waveform. This value is guaranteed across temperature and process variation, ensuring downstream components see no more than 10.5 V during surge events - critical for protecting 12 V-tolerant ICs and regulators. The P6SMB7.5AT3G achieves this with low dynamic impedance and fast avalanche response.
Is the P6SMB7.5AT3G suitable for automotive applications requiring AEC-Q101 qualification?
Yes, the P6SMB7.5AT3G is explicitly AEC-Q101 qualified and PPAP capable, as confirmed in ON Semiconductor's official documentation. It undergoes rigorous stress testing including temperature cycling, high-temperature operating life, and ESD verification - making it approved for under-hood and cabin applications such as body control modules, infotainment power rails, and ADAS sensor interfaces. The P6SMB7.5AT3G also carries the SZ prefix variant (SZP6SMB7.5AT3G) for enhanced automotive traceability.
How does the P6SMB7.5AT3G differ from bidirectional TVS diodes like the P6SMB7.5CAT3G?
The P6SMB7.5AT3G is unidirectional and functions only during reverse overvoltage events - ideal for DC power line protection where polarity is fixed. In contrast, the P6SMB7.5CAT3G is bidirectional and clamps both positive and negative transients, suited for AC signal lines or data buses like RS-485. The P6SMB7.5AT3G offers tighter VBR tolerance and lower leakage in DC applications, while the "C" variant sacrifices some precision for symmetrical bipolar clamping behavior.
What is the working peak reverse voltage (VRWM) specification for the P6SMB7.5AT3G?
The P6SMB7.5AT3G has a working peak reverse voltage (VRWM) of 6.4 V, meaning it remains non-conductive up to this DC or continuous peak voltage level. This allows direct placement on 5 V systems with headroom for ripple and tolerance, while triggering reliably above 6.4 V. VRWM is distinct from VBR (7.13–7.88 V) and ensures stable operation during normal conditions without leakage-induced power loss - a key parameter verified in the P6SMB7.5AT3G datasheet Table 3.
Does the P6SMB7.5AT3G meet UL 497B requirements for isolated loop protection?
Yes, the entire P6SMB6.8AT3G series - including the P6SMB7.5AT3G - holds UL 497B recognition under File #E210057 for protector classification (QVGQ2). It passed strike voltage breakdown, endurance conditioning, dielectric withstand, and discharge testing - not merely flammability. This certification validates the P6SMB7.5AT3G for use in safety-isolated circuits such as medical device signal interfaces, PoE-powered equipment, and industrial fieldbus networks where galvanic separation must be maintained during surge events.
P6SMB7.5AT3G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 53A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 2180pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
P6SMB7.5AT3G FAQ
1.How can I place an order for P6SMB7.5AT3G through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB7.5AT3G 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 P6SMB7.5AT3G reliable?
The price and inventory of P6SMB7.5AT3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB7.5AT3G is usually 5 days.
3.What payment methods are accepted for P6SMB7.5AT3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB7.5AT3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB7.5AT3G?
P6SMB7.5AT3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB7.5AT3G 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 P6SMB7.5AT3G?
For technical support, including P6SMB7.5AT3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB7.5AT3G requirements.
6.How does Aetrix verify that P6SMB7.5AT3G is sourced from the original manufacturer or authorized distributors?
All P6SMB7.5AT3G 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 P6SMB7.5AT3G meets industry standards.
7.What is the process for return or replacement of P6SMB7.5AT3G?
All P6SMB7.5AT3G units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB7.5AT3G, 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 P6SMB7.5AT3G part is unused and in its original packaging.
Return procedure for P6SMB7.5AT3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB7.5AT3G 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
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
