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Vishay General Semiconductor - Diodes Division P6SMB75AHE3/52
- Part No.:
- P6SMB75AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB75AHE3/52.pdf
- Description:
- TVS DIODE 64.1VWM 103VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,243
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Product details
Overview
P6SMB75AHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 75 V standoff voltage (VWM), 71.3–78.8 V breakdown voltage (VBR) at 1 mA, and 103 V clamping voltage (VC) at 5.8 A peak pulse current (IPPM), designed to protect MOSFETs, ICs, and sensor signal lines against inductive switching transients and ESD in automotive and industrial power supplies.
For engineers reviewing the P6SMB75AHE3/52 datasheet, P6SMB75AHE3/52 pinout, P6SMB75AHE3/52 application, or P6SMB75AHE3/52 equivalent, this AEC-Q101 qualified TVS offers verified 600 W peak pulse power (10/1000 μs), low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for high-reliability automotive ECUs and industrial motor drives requiring robust overvoltage immunity without layout redesign.
Technical Context
This unidirectional TVS operates with a cathode-band-marked polarity and exhibits fast response time (<1 ns) to transient events, enabling effective suppression of sub-microsecond voltage spikes induced by relay coil de-energization or MOSFET switching. Its glass-passivated junction ensures stable leakage performance and long-term reliability under thermal cycling.
The device delivers 600 W peak pulse power per 10/1000 μs waveform at TA = 25 °C, derated linearly above 25 °C with RθJA = 100 °C/W, and supports repetitive surge duty cycles up to 0.01 %. It maintains ≤1.0 μA reverse leakage at 64.1 V (VWM) and achieves clamping within 103 V at 5.8 A IPPM - key for safeguarding 75 V-rated power rails and gate drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 64.1 V - maximum continuous reverse operating voltage before conduction begins; defines safe operating margin for 75 V nominal systems. |
| VBR (Breakdown Voltage) | 71.3–78.8 V at IT = 1 mA - precise voltage threshold where avalanche conduction initiates; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 103 V at IPPM = 5.8 A - maximum voltage seen by protected circuit during 600 W transient; limits stress on downstream 75 V-rated components. |
| PPPM (Peak Pulse Power) | 600 W (10/1000 μs) - energy-handling capacity for standardized surge waveforms; sufficient for IEC 61000-4-5 Level 3 (1 kV/2 Ω) compliance. |
| ID (Reverse Leakage) | ≤1.0 μA at VWM - negligible standby current draw; avoids power loss or false triggering in low-power sensor interfaces. |
| TJ max. | +150 °C - enables operation in under-hood automotive environments and enclosed industrial enclosures without thermal shutdown. |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard; suitable for engine control modules. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, RoHS-compliant and halogen-free (HE3 suffix), MSL Level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode-side connection in unidirectional configuration | Connected to protected line (e.g., 75 V rail); clamps to cathode when voltage exceeds VBR - requires correct orientation to avoid forward conduction. |
| Anode | Reference/ground return path | Typically tied to system ground or low-impedance return plane; forms current loop during clamping - PCB layout must minimize inductance here. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage across -65 °C to +150 °C; eliminates passivation-related drift in harsh thermal environments. |
| 600 W peak pulse power (10/1000 μs) | Handles repeated surges from inductive loads (e.g., solenoids, relays) without degradation - validated for ≥1000 pulses at rated conditions. |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage overshoot during clamping; protects sensitive gate oxides and logic inputs more effectively than higher-ratio TVS devices. |
| AEC-Q101 qualification (HE3 suffix) | Confirms suitability for automotive applications including powertrain and body electronics - includes HTGB, AC-H3TRB, and mechanical shock testing. |
| MSL Level 1 rating | Allows unlimited floor life and standard SMT reflow without baking; reduces manufacturing complexity and cost in high-volume automotive assembly. |
Applications
| Automotive Engine Control Unit (ECU) Power Input Protection | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protects 75 V battery-supplied microcontroller power rail from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp positive-going surges above 75 V. Use Value: Limits peak voltage to 103 V during 600 W transients, preventing damage to 80 V-rated DC-DC converters and MCU LDOs. |
Use Scenario: Shields 24 V/48 V digital input optocoupler front-end from field-wiring induced surges in factory automation. IC Role / Device Role / Timing Role: Standoff-rated TVS on signal line to absorb inductive kickback from proximity sensors and solenoid feedback loops. Use Value: Clamps transients within 1 ns while maintaining <1 μA leakage - preserves signal integrity and avoids false triggering in 10 kHz sampling systems. |
| Telecom Remote Radio Head (RRH) DC Power Feed | Consumer Appliance Motor Drive Board |
Use Scenario: Safeguards 48 V PoE-derived power input in outdoor base station equipment exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage protection stage upstream of DC-DC regulation, coordinated with MOV and gas discharge tube. Use Value: Provides precise 75 V clamping threshold and 600 W energy absorption - complements coarse protection without sacrificing response speed. |
Use Scenario: Guards BLDC motor gate driver ICs against back-EMF spikes during commutation in washing machine and HVAC inverters. IC Role / Device Role / Timing Role: Localized TVS on half-bridge high-side and low-side gate supply lines to suppress dV/dt-induced shoot-through. Use Value: Enables reliable operation at TJ = 150 °C ambient; withstands repeated 5.8 A surge currents without parameter shift or bond wire failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ75A-E3/52 | Same SMB package, 75 V VWM, but lower PPPM (400 W) and higher VC (121 V at 3.3 A); no AEC-Q101 qualification. | Limited to commercial-grade consumer/industrial use; insufficient for automotive load-dump immunity per ISO 7637-2. | Select only if cost sensitivity outweighs automotive reliability requirements and surge energy stays below 400 W. |
| 1.5SMC75A | Higher-power SMC package (1500 W PPPM), same VWM/VC specs, but larger footprint (7.11 × 6.22 mm vs. SMB's 4.57 × 3.94 mm) and no AEC-Q101 variant. | Suitable for high-energy industrial surge zones but incompatible with space-constrained automotive PCBs. | Choose when board area permits and system-level surge testing exceeds 600 W - not a drop-in replacement due to package mismatch. |
Compared with SMAJ75A-E3/52 and 1.5SMC75A, P6SMB75AHE3/52 uniquely combines AEC-Q101 qualification, SMB footprint, and 600 W capability - making it the only option meeting automotive functional safety requirements without increasing PCB area or compromising surge margin.
Availability
P6SMB75AHE3/52 is available at Aetrix Electronics and suitable for automotive engine control units, industrial programmable logic controllers, and telecom remote radio heads requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB75AHE3/52 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The P6SMB Series targets high-energy transient suppression in space-constrained, thermally demanding applications - engineered specifically for AEC-Q101 compliance and automated SMT assembly in automotive electronics.
FAQ
What is the clamping voltage of P6SMB75AHE3/52 at its rated peak pulse current?
The P6SMB75AHE3/52 has a maximum clamping voltage (VC) of 103 V at 5.8 A peak pulse current (IPPM), measured under the standard 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuits during transient events - critical for ensuring compatibility with 80 V-rated downstream components in automotive power systems.
Is P6SMB75AHE3/52 suitable for automotive applications?
Yes, P6SMB75AHE3/52 is AEC-Q101 qualified and manufactured with HE3 suffix indicating automotive-grade reliability. It passes temperature cycling, highly accelerated life testing (HALT), and ESD validation per AEC-Q101 Rev D. Its 150 °C maximum junction temperature and MSL Level 1 rating make it appropriate for under-hood engine control modules and body electronics where thermal and mechanical robustness are mandatory.
What does the "HE3" suffix indicate in P6SMB75AHE3/52?
The "HE3" suffix in P6SMB75AHE3/52 denotes RoHS-compliant, halogen-free construction with AEC-Q101 qualification. It distinguishes this automotive-grade variant from commercial versions (e.g., P6SMB75A-E3/52), confirming compliance with automotive reliability standards, material restrictions, and process controls required for safety-critical vehicle systems.
How does P6SMB75AHE3/52 differ from bidirectional variants like P6SMB75CA?
P6SMB75AHE3/52 is unidirectional with cathode marking and conducts only in reverse bias, while P6SMB75CA is bidirectional and symmetrical - clamping both positive and negative transients. The unidirectional version offers lower leakage (<1.0 μA) and tighter VBR tolerance, making it preferred for DC power rail protection; the bidirectional type suits AC signal lines or differential buses where polarity reversal occurs.
What is the thermal resistance of P6SMB75AHE3/52, and how does it affect PCB layout?
P6SMB75AHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain TJ ≤ 150 °C under 5.0 W steady-state dissipation, designers must provide adequate copper area and consider airflow - undersized pads or lack of thermal vias will cause premature thermal derating and reduced surge endurance.
P6SMB75AHE3/52 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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 64.1V
- Voltage - Breakdown (Min):
- 71.3V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 5.8A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB75AHE3/52 FAQ
1.How can I place an order for P6SMB75AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB75AHE3/52 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 P6SMB75AHE3/52 reliable?
The price and inventory of P6SMB75AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB75AHE3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB75AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB75AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB75AHE3/52?
P6SMB75AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB75AHE3/52 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 P6SMB75AHE3/52?
For technical support, including P6SMB75AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB75AHE3/52 requirements.
6.How does Aetrix verify that P6SMB75AHE3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB75AHE3/52 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 P6SMB75AHE3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB75AHE3/52?
All P6SMB75AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB75AHE3/52, 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 P6SMB75AHE3/52 part is unused and in its original packaging.
Return procedure for P6SMB75AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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