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Vishay General Semiconductor - Diodes Division P6SMB7.5AHE3_B/H
- Part No.:
- P6SMB7.5AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB7.5AHE3_B/H.pdf
- Description:
- 600W,7.5V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,875
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Product details
Overview
P6SMB7.5AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. 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 (IPPM), and 600 W peak pulse power capability with 10/1000 μs waveform - ideal for protecting MOSFETs and ICs in automotive and industrial power rails.
For engineers reviewing the P6SMB7.5AHE3_B/H datasheet, P6SMB7.5AHE3_B/H pinout, P6SMB7.5AHE3_B/H application, or P6SMB7.5AHE3_B/H equivalent, this device offers AEC-Q101 qualification, low incremental surge resistance, fast response time, and MSL Level 1 moisture sensitivity - critical for high-reliability automotive electronics design and board-level ESD/surge protection validation.
Technical Context
The P6SMB7.5AHE3_B/H operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold (VBR), thereby shunting transient energy to ground. Its glass-passivated junction ensures stable leakage and robust surge handling under repetitive 10/1000 μs pulses at 0.01% duty cycle.
Thermal performance is defined by RθJA = 100 °C/W and RθJL = 20 °C/W, with maximum junction temperature of +150 °C. The cathode band identifies polarity, and it is rated for 100 A non-repetitive forward surge current (IFSM) per 8.3 ms half-sine wave - supporting inductive load switching protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 6.40 V - Maximum continuous reverse voltage before significant conduction begins; sets operating margin below clamping threshold. |
| VBR (Breakdown) | 7.13–7.88 V at 10 mA - Confirmed avalanche onset range; ensures reliable triggering during transients without premature conduction. |
| VC (Clamping) | 11.3 V at 53.1 A IPPM - Peak voltage seen by protected circuit during worst-case 600 W surge; defines safe stress limit for downstream components. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 μs waveform; validates suitability for IEC 61000-4-5 Level 3/4 surge immunity designs. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments and industrial enclosures. |
| AEC-Q101 | Qualified - Certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side (e.g., ground or return path); defines directionality in unidirectional configuration. |
| Cathode (banded end) | Reverse voltage sensing / Surge shunt node | Connected to protected line (e.g., 5 V rail); conducts when transient exceeds VBR, diverting current to anode/ground. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units, body electronics, and ADAS sensors requiring long-term reliability under thermal and mechanical stress. |
| 600 W peak pulse power | Supports IEC 61000-4-5 surge immunity up to 4 kV (line-earth) in properly designed PCB layouts with recommended 0.2" × 0.2" copper pads. |
| Glass-passivated junction | Ensures stable leakage current (<500 μA at VWM), consistent VBR tolerance, and resistance to humidity-induced degradation over 15+ year service life. |
| MSL Level 1 (260 °C peak) | Enables compatibility with standard lead-free reflow profiles without pre-baking; reduces manufacturing complexity and cost. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 5 V microcontroller supply lines in vehicle infotainment modules against load dump and ISO 7637-2 transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between VCC and GND, triggered within <1 ns to limit voltage excursion during 12 V system surges. Use Value: Prevents latch-up or permanent damage to MCU IO cells and internal regulators by holding rail voltage ≤11.3 V during 53.1 A transient events. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA transmitter) in factory automation PLC I/O modules from field-wiring induced surges. IC Role / Device Role / Timing Role: Standoff-connected TVS on signal line to ground, activated only during overvoltage faults while remaining invisible during normal 20 mA operation. Use Value: Maintains signal integrity below 6.40 V standby, eliminates need for series resistors or active protection circuits, and supports >1 million surge cycles. |
| Consumer Device USB Port Protection | Telecom Power Supply Input Clamping |
|
Use Scenario: Secondary-level surge suppression on VBUS line of USB-C ports in smart home hubs exposed to ESD and hot-plug transients. IC Role / Device Role / Timing Role: Fast-acting unidirectional clamp referenced to ground, placed after primary fuse but before USB controller's internal ESD diodes. Use Value: Absorbs >15 kV contact ESD (IEC 61000-4-2) and 100 V/1 A ringwave surges without degrading insertion loss or signal rise time on 480 Mbps data paths. |
Use Scenario: Input-stage transient suppression on 24 V DC input of telecom base station power supplies subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping device across input terminals, coordinated with upstream MOVs to share energy and extend system lifetime. Use Value: Limits input voltage to ≤11.3 V during 600 W events, preventing overvoltage shutdown of DC-DC controllers and reducing thermal stress on bulk capacitors. |
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, 600 W PPPM, but VWM = 6.4 V, VC = 12.0 V at 49.2 A - higher clamping voltage and lower IPPM than P6SMB7.5AHE3_B/H. | Less effective clamping margin for 5 V systems where headroom below 12 V is constrained; suitable for 12 V rails with higher tolerance. | Select SMAJ7.5A only if layout constraints require identical footprint and 12.0 V clamping is acceptable for the protected IC's absolute maximum rating. |
| 1.5SMC7.5A | Higher-power SMC package (1500 W), same VWM/VBR range, but larger footprint (DO-214AB), VC = 12.9 V at 116 A - not drop-in compatible. | Used in high-energy surge environments (e.g., outdoor telecom cabinets); requires PCB redesign and thermal pad expansion. | Choose 1.5SMC7.5A only when system-level surge tests exceed 600 W requirements and board space allows larger SMC footprint. |
Compared with SMAJ7.5A and 1.5SMC7.5A, the P6SMB7.5AHE3_B/H delivers tighter clamping (11.3 V), higher surge current density (53.1 A in SMB), and automotive qualification - making it optimal for space-constrained, AEC-Q101–mandated 5 V/12 V rail protection without compromising safety margin or manufacturability.
Availability
P6SMB7.5AHE3_B/H is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, consumer USB power protection, and telecom DC input clamping requiring stable component supply, AEC-Q101 compliance, and consistent surge performance across production batches.
Supply support for P6SMB7.5AHE3_B/H 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-volume, high-reliability transient suppression in automotive, industrial, and communications equipment - engineered for robustness under thermal cycling, surge repetition, and harsh environmental conditions.
FAQ
What is the maximum clamping voltage of the P6SMB7.5AHE3_B/H under rated surge conditions?
The P6SMB7.5AHE3_B/H has a maximum clamping voltage (VC) of 11.3 V at 53.1 A peak pulse current (IPPM), measured with a 10/1000 μs waveform. This value defines the highest voltage imposed on the protected circuit during a 600 W transient event and is confirmed in the Vishay datasheet revision 09-Jan-2024, page 2. Designers must ensure downstream components' absolute maximum ratings exceed 11.3 V to prevent damage. The P6SMB7.5AHE3_B/H achieves this clamping performance while maintaining low leakage (<500 μA) below 6.40 V.
Is the P6SMB7.5AHE3_B/H qualified for automotive applications?
Yes, the P6SMB7.5AHE3_B/H is AEC-Q101 qualified, as indicated by the "HE3" and "_B" suffixes in its ordering code. This certification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per JESD22-A114. The qualification applies specifically to the P6SMB7.5AHE3_B/H variant - not generic P6SMB7.5A - and confirms suitability for under-hood and cabin electronics where junction temperatures reach +150 °C. The P6SMB7.5AHE3_B/H is widely used in automotive body control modules and ADAS sensor power rails.
What is the standoff voltage (VWM) and why does it matter for P6SMB7.5AHE3_B/H selection?
The P6SMB7.5AHE3_B/H has a standoff voltage (VWM) of 6.40 V, meaning it remains non-conductive up to this reverse voltage during normal operation. This parameter ensures no power loss or signal distortion occurs on a nominal 5 V rail, while still allowing rapid avalanche conduction when transients exceed ~7.13 V. Selecting a VWM too close to the operating voltage risks false triggering; the 6.40 V VWM provides 0.6 V margin above 5.8 V typical logic rail tolerances. The P6SMB7.5AHE3_B/H's VWM is verified per JEDEC test conditions and is stable over temperature due to its glass-passivated junction.
Does the P6SMB7.5AHE3_B/H have moisture sensitivity level (MSL) rating, and what does it mean for assembly?
The P6SMB7.5AHE3_B/H meets MSL Level 1 per J-STD-020, with a maximum lead-free reflow peak temperature of 260 °C. This means the device can be placed directly into standard SMT reflow ovens without baking or dry-pack requirements, simplifying manufacturing and reducing yield risk. The MSL Level 1 rating is achieved through optimized molding compound and terminal plating (matte tin), and is validated for unlimited floor life at ≤30 °C/60% RH. This characteristic is critical for high-throughput automotive electronics assembly lines using the P6SMB7.5AHE3_B/H.
How does the thermal resistance of the P6SMB7.5AHE3_B/H affect its surge handling capability?
The P6SMB7.5AHE3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W. These values determine how quickly heat from surge events dissipates: lower RθJL improves short-duration pulse handling (e.g., 10/1000 μs), while RθJA governs steady-state power limits (PD = 5.0 W). For the P6SMB7.5AHE3_B/H, the 20 °C/W RθJL enables reliable 600 W pulse absorption when mounted on minimum 0.2" × 0.2" copper pads - as specified in the Vishay datasheet Figure 6 layout. Exceeding pad size recommendations degrades IPPM derating.
P6SMB7.5AHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- 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):
- 53.1A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB7.5AHE3_B/H FAQ
1.How can I place an order for P6SMB7.5AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB7.5AHE3_B/H 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 P6SMB7.5AHE3_B/H reliable?
The price and inventory of P6SMB7.5AHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB7.5AHE3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB7.5AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB7.5AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB7.5AHE3_B/H?
P6SMB7.5AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB7.5AHE3_B/H 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 P6SMB7.5AHE3_B/H?
For technical support, including P6SMB7.5AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB7.5AHE3_B/H requirements.
6.How does Aetrix verify that P6SMB7.5AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB7.5AHE3_B/H 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 P6SMB7.5AHE3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB7.5AHE3_B/H?
All P6SMB7.5AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB7.5AHE3_B/H, 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 P6SMB7.5AHE3_B/H part is unused and in its original packaging.
Return procedure for P6SMB7.5AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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