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Vishay General Semiconductor - Diodes Division P6SMB7.5A-E3/5B
- Part No.:
- P6SMB7.5A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB7.5A-E3/5B.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,978
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Product details
Overview
P6SMB7.5A-E3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. It features a 6.40 V stand-off voltage (VWM), 7.13–7.88 V breakdown voltage (VBR) at 10 mA, 11.3 V maximum clamping voltage (VC) at 53.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform.
For engineers reviewing the P6SMB7.5A-E3/5B datasheet, P6SMB7.5A-E3/5B pinout, P6SMB7.5A-E3/5B application, or P6SMB7.5A-E3/5B equivalent, this device is selected for robust overvoltage protection in low-voltage DC power rails, automotive sensor interfaces, and industrial I/O lines where fast response (<1 ns), low clamping ratio (VC/VBR ≈ 1.49), and AEC-Q101 qualification readiness are critical.
Technical Context
The P6SMB7.5A-E3/5B operates as a unidirectional avalanche diode with cathode-banded polarity, leveraging glass-passivated junction technology for stable breakdown and low leakage (<500 μA at VWM). Its thermal resistance (RθJA = 100 °C/W) and 150 °C max junction temperature support operation in compact PCB layouts with minimal copper pad area (0.2" × 0.2").
It delivers 600 W peak pulse power under standardized 10/1000 μs waveform conditions, with derating above 25 °C per Figure 2. The device meets MSL Level 1 per J-STD-020 and is RoHS-compliant (E3 suffix), with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 6.40 V - Maximum continuous reverse voltage before significant leakage; sets operating margin below breakdown. |
| VBR (Breakdown) | 7.13–7.88 V at 10 mA - Confirmed avalanche onset range; ensures reliable triggering during transients. |
| VC (Clamping) | 11.3 V at 53.1 A - Limits downstream voltage during surge; clamping ratio of ~1.49 enables safe IC-level protection. |
| PPPM | 600 W - Peak transient energy absorption capability with 10/1000 μs waveform; supports repetitive 0.01% duty cycle. |
| IPPM | 53.1 A - Peak surge current handled without failure; validated on 0.2" × 0.2" copper pads per spec. |
| TJ max | 150 °C - Maximum junction temperature; allows operation in under-hood automotive or industrial ambient environments. |
| Package | SMB (DO-214AA) - Low-profile SMD footprint (4.57 mm × 3.94 mm × 2.20 mm); optimized for automated placement and board space efficiency. |
Pinout & Package
SMB (DO-214AA) package: surface-mount, molded plastic case with matte tin-plated leads; cathode indicated by band; compliant with UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during forward surge (e.g., reverse polarity events). |
| Cathode | Avalanche clamping terminal | Connected to higher-potential side; initiates controlled breakdown when reverse voltage exceeds VWM. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables protection against high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without external heat sinking. |
| 11.3 V clamping at 53.1 A | Provides tight voltage limiting for 5 V and 3.3 V logic rails, preventing latch-up or gate oxide damage in MOSFETs and ICs. |
| Glass-passivated junction | Ensures long-term stability of VBR and low leakage (<500 μA) across temperature and life cycles. |
| MSL Level 1 rating | Allows unlimited floor life and reflow compatibility up to 260 °C peak, eliminating moisture sensitivity handling constraints. |
| RoHS-compliant E3 suffix | Meets global environmental compliance requirements; matte tin plating ensures reliable solder joint formation. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive kickback in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground, clamping transients within nanoseconds to prevent damage to front-end amplifiers and ADCs. Use Value: Maintains signal integrity during 100 V/50 ms load dump events while holding clamped voltage below 12 V, preserving sensor accuracy and MCU interface reliability. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and ESD in factory automation environments. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels, absorbing repetitive 600 W surges from contactor switching. Use Value: Enables >100,000 switching cycles without degradation, reducing field failures caused by transient-induced latch-up in optocouplers and level shifters. |
| Consumer Power Adapter Protection | Telecom DC Power Rail Protection |
Use Scenario: Secondary-side transient suppression on 5 V/9 V/12 V outputs of AC-DC adapters used in routers, set-top boxes, and smart home hubs. IC Role / Device Role / Timing Role: Fast-acting shunt device parallel to output capacitor, diverting surge energy away from USB ports and PMICs. Use Value: Achieves <1 ns response time and clamps 1 kV EFT bursts to <12 V, meeting IEC 61000-4-4 Level 4 immunity requirements. |
Use Scenario: Protecting PoE-powered devices (e.g., IP cameras, wireless access points) against induced surges on 48 V DC distribution lines. IC Role / Device Role / Timing Role: Stand-off-rated TVS on midspan injector outputs, coordinated with upstream GDTs to handle differential-mode transients. Use Value: Withstands 600 W pulses without thermal runaway, enabling single-device protection architecture that reduces BOM count and layout area. |
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 | Same SMB package, but lower 400 W PPPM; VC = 12.0 V at 32.5 A; higher clamping ratio (1.58). | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only); not suitable for ISO 7637-2 Pulse 5a. | Select SMAJ7.5A only when system-level surge testing requires ≤400 W absorption and cost is prioritized over headroom. |
| 1.5SMC7.5A | Higher-power SMC package (7.11 mm × 6.22 mm); same VWM/VBR, but VC = 12.9 V at 46.5 A and PPPM = 1500 W. | Requires larger PCB area; suited for primary-side AC/DC or high-reliability industrial mains inputs. | Choose 1.5SMC7.5A when surge energy exceeds 600 W or when extended thermal margin is needed in high-ambient designs. |
Compared with SMAJ7.5A and 1.5SMC7.5A, the P6SMB7.5A-E3/5B delivers optimal balance of 600 W capability, SMB footprint, and 11.3 V clamping-making it the preferred choice for space-constrained 5–12 V DC systems requiring automotive-grade robustness without SMC-level size penalty.
Availability
P6SMB7.5A-E3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and consumer power adapter secondary-side protection requiring stable component supply, full traceability, and RoHS-compliant sourcing.
Supply support for P6SMB7.5A-E3/5B 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, precision, and automotive qualification.
The P6SMB7.5A-E3/5B belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure where fast response, stable clamping, and AEC-Q101 readiness are mandatory.
FAQ
What is the maximum clamping voltage of the P6SMB7.5A-E3/5B under specified test conditions?
The P6SMB7.5A-E3/5B has a maximum clamping voltage (VC) of 11.3 V when subjected to its rated peak pulse current of 53.1 A using the standard 10/1000 μs waveform. This value is measured at TA = 25 °C on 0.2" × 0.2" copper pads and defines the upper voltage limit imposed on protected circuitry during surge events. The P6SMB7.5A-E3/5B maintains this clamping performance consistently due to its glass-passivated junction and low incremental surge resistance.
Is the P6SMB7.5A-E3/5B suitable for automotive applications?
The P6SMB7.5A-E3/5B is RoHS-compliant and manufactured to Vishay's commercial-grade specifications; while the base P6SMB7.5A-E3/5B is not AEC-Q101 qualified, the related P6SMB7.5AHE3_B variant (with HE3 suffix and _B revision code) is AEC-Q101 qualified for automotive use. Engineers selecting the P6SMB7.5A-E3/5B should verify end-equipment qualification requirements-this part is widely deployed in automotive-adjacent industrial and consumer systems where full AEC-Q101 is not mandated.
What does the "E3/5B" suffix indicate in P6SMB7.5A-E3/5B?
The "E3" suffix denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads, while "5B" specifies packaging in 13-inch diameter plastic tape and reel containing 3200 units. This format supports high-volume SMT assembly and is compatible with standard pick-and-place equipment. The P6SMB7.5A-E3/5B is distinct from variants like P6SMB7.5A-E3/52 (7-inch reel, 750 units) and P6SMB7.5AHE3_B (AEC-Q101 qualified, 7-inch reel).
How does the P6SMB7.5A-E3/5B compare to bidirectional TVS diodes like P6SMB7.5CA?
The P6SMB7.5A-E3/5B is unidirectional and intended for DC line protection where polarity is fixed (e.g., +5 V rail to ground), offering lower leakage and tighter VBR tolerance than its bidirectional counterpart P6SMB7.5CA. The latter provides symmetrical clamping for AC or floating signals but exhibits higher reverse leakage and slightly wider VBR spread. For 5 V DC systems, the P6SMB7.5A-E3/5B delivers superior clamping efficiency and noise immunity compared to P6SMB7.5CA.
What thermal derating applies to the P6SMB7.5A-E3/5B above 25 °C ambient?
The P6SMB7.5A-E3/5B follows Vishay's standard derating curve (Figure 2 in datasheet 88370): peak pulse power decreases linearly from 600 W at 25 °C to zero at 175 °C junction temperature. At 85 °C ambient with typical PCB layout, usable PPPM drops to approximately 420 W. Designers must calculate actual junction temperature rise using RθJA = 100 °C/W and ensure TJ remains ≤150 °C during surge events. The P6SMB7.5A-E3/5B's thermal design supports this via low RθJL = 20 °C/W to leads.
P6SMB7.5A-E3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- 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):
- 53.1A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB7.5A-E3/5B FAQ
1.How can I place an order for P6SMB7.5A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB7.5A-E3/5B 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 P6SMB7.5A-E3/5B reliable?
The price and inventory of P6SMB7.5A-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB7.5A-E3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB7.5A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB7.5A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB7.5A-E3/5B?
P6SMB7.5A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB7.5A-E3/5B 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 P6SMB7.5A-E3/5B?
For technical support, including P6SMB7.5A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB7.5A-E3/5B requirements.
6.How does Aetrix verify that P6SMB7.5A-E3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB7.5A-E3/5B 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 P6SMB7.5A-E3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB7.5A-E3/5B?
All P6SMB7.5A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB7.5A-E3/5B, 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 P6SMB7.5A-E3/5B part is unused and in its original packaging.
Return procedure for P6SMB7.5A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB7.5A-E3/5B Tags
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Diodes Incorporated
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Diodes Incorporated
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