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Vishay General Semiconductor - Diodes Division P6SMB75A-E3/5B
- Part No.:
- P6SMB75A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB75A-E3/5B.pdf
- Description:
- TVS DIODE 64.1VWM 103VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB75A-E3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power rails and signal lines. It features a 75 V standoff voltage (VWM), 71.3–78.8 V breakdown voltage (VBR) at 1 mA, 103 V clamping voltage (VC) at 5.8 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive, industrial, and telecom power supply inputs.
For engineers reviewing the P6SMB75A-E3/5B datasheet, P6SMB75A-E3/5B pinout, P6SMB75A-E3/5B application, or P6SMB75A-E3/5B equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status (via HE3/HM3 variants), thermal resistance (RθJA = 100 °C/W), and clamping performance under repetitive surge conditions.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: during transients exceeding VBR, it avalanches to divert surge current away from downstream circuitry while maintaining VC ≤ 103 V. Its glass-passivated junction ensures stable leakage (<1 μA at 64.1 V) and fast response time (<1 ns), critical for safeguarding MOSFET gates and microcontroller I/O lines.
The device is rated for 100 A non-repetitive forward surge (IFSM, 8.3 ms half-sine) and operates across -65 °C to +150 °C junction temperature. Mounted on 5.0 mm × 5.0 mm copper pads, it delivers full 600 W pulse power only when thermally derated per Fig. 2 above TA = 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 64.1 V - maximum continuous reverse voltage before significant leakage; defines operating rail margin before clamping initiates |
| VBR (Breakdown) | 71.3–78.8 V at 1 mA - precise avalanche onset range ensuring consistent turn-on across production lots |
| VC (Clamping) | 103 V at IPPM = 5.8 A - peak voltage seen by protected circuit during worst-case 10/1000 μs transient |
| PPPM | 600 W - surge energy handling capacity with standardized 10/1000 μs waveform at 0.01% duty cycle |
| RθJA | 100 °C/W - thermal resistance from junction to ambient; requires PCB copper area planning for sustained power dissipation |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 5.59 mm × 4.06 mm footprint and matte tin-plated leads |
| AEC-Q101 | Not qualified for P6SMB75A-E3/5B - qualification applies only to HE3/HM3 suffix variants (e.g., P6SMB75AHE3_B) |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case meeting UL 94 V-0 flammability rating; cathode indicated by band on body; terminals are matte tin-plated and solderable per J-STD-002/JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-voltage reference; completes shunt path during avalanche conduction |
| Cathode | High-side connection point | Connected to protected line (e.g., 48 V rail); polarity band identifies this terminal for unidirectional operation |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 24–48 V systems without cascaded stages |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without preconditioning or dry-pack requirements |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a in automotive) |
| RoHS-compliant, commercial grade | E3 suffix confirms compliance with EU RoHS Directive 2011/65/EU; suitable for non-automotive industrial deployments |
Applications
| Industrial Power Input Protection | Automotive Body Control Module (BCM) Supply Rail |
|---|---|
Use Scenario: 24 V DC input stage of PLC I/O module exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VIN and GND to clamp transients before DC-DC converter input. Use Value: Limits voltage to ≤103 V during 600 W surges, preventing damage to upstream buck controller ICs rated for 36 V max input. |
Use Scenario: 12 V battery-fed power rail in BCM subjected to ISO 7637-2 pulse 5a (load dump up to 60 V). IC Role / Device Role / Timing Role: Primary clamping device on main supply line, coordinated with upstream fuse and downstream LDOs. Use Value: Clamps 12 V rail to 103 V within nanoseconds, protecting CAN transceivers and microcontroller power domains. |
| Telecom AC-DC Adapter Output | Consumer Appliance Motor Drive Board |
Use Scenario: Secondary-side 48 V output of telecom adapter subject to lightning-induced surges on PoE-like interfaces. IC Role / Device Role / Timing Role: Final-stage TVS on regulated output, positioned after bulk capacitor and before connector. Use Value: Absorbs 600 W pulses without degradation, maintaining output integrity during field-deployed surge events. |
Use Scenario: H-bridge gate driver supply rail in washing machine control board, exposed to back-EMF spikes from brushed motor commutation. IC Role / Device Role / Timing Role: Localized clamping element across VDD-GND pins of half-bridge driver IC. Use Value: Prevents latch-up in driver ICs by limiting rail excursions to 103 V during 5.8 A transient currents. |
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 | Same SMB package, identical VWM/VBR/VC specs, but lower PPPM (400 W vs. 600 W); RθJA = 110 °C/W | Limited to lower-energy transients (e.g., IEC 61000-4-4 EFT, not full IEC 61000-4-5) | Select when cost sensitivity outweighs need for 600 W surge headroom and thermal margin is constrained |
| 1.5SMC75A | Higher-power SMC package (7.11 mm × 6.22 mm), same electrical specs, PPPM = 1500 W, RθJA = 60 °C/W | Requires larger PCB area; suited for high-reliability industrial power supplies with frequent surges | Choose when system-level surge testing exceeds 600 W or long-term thermal cycling demands lower junction rise |
Compared with SMAJ75A and 1.5SMC75A, P6SMB75A-E3/5B delivers optimal balance of 600 W surge capability, SMB footprint compatibility, and commercial-grade cost structure - making it ideal for space-constrained 24–48 V systems where full IEC 61000-4-5 compliance is required without SMC-level board real estate.
Availability
P6SMB75A-E3/5B is available at Aetrix Electronics and suitable for industrial automation controllers, telecom power adapters, and consumer appliance motor drives requiring stable component supply, RoHS-compliant sourcing, and tape-and-reel delivery in 3200-unit reels.
Supply support for P6SMB75A-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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive-grade qualification.
The P6SMB Series targets cost-sensitive, high-volume transient protection needs in industrial, telecom, and consumer power systems - delivering standardized SMB-form factor TVS performance with scalable qualification paths (commercial E3/M3 or AEC-Q101 HE3/HM3).
FAQ
What is the clamping voltage of the P6SMB75A-E3/5B under maximum surge conditions?
The P6SMB75A-E3/5B has a maximum clamping voltage (VC) of 103 V at a peak pulse current (IPPM) of 5.8 A, measured using the standardized 10/1000 μs waveform. This value represents the highest voltage imposed on the protected circuit during worst-case transient events, and it is guaranteed across the full operating temperature range per the Vishay datasheet revision 09-Jan-2024. Engineers must verify layout thermal relief to maintain this clamping performance in sustained surge scenarios.
Is the P6SMB75A-E3/5B AEC-Q101 qualified?
No, the P6SMB75A-E3/5B is not AEC-Q101 qualified. The E3 suffix denotes RoHS-compliant commercial-grade construction. AEC-Q101 qualification is available only on variants with HE3 or HM3 suffixes (e.g., P6SMB75AHE3_B), which undergo additional stress testing for automotive under-hood applications. For automotive use, P6SMB75A-E3/5B requires validation per customer-specific reliability requirements, as it lacks the certified qualification record.
What is the standoff voltage (VWM) and why does it matter for P6SMB75A-E3/5B placement?
The P6SMB75A-E3/5B has a standoff voltage (VWM) of 64.1 V - the maximum continuous reverse voltage it can block without entering avalanche conduction. This parameter determines safe placement relative to system operating voltage: for example, it is appropriate for 48 V nominal rails where normal operation stays below 64.1 V, but unsuitable for 72 V systems where leakage or premature clamping would occur. Designers must ensure VWM exceeds peak steady-state voltage by ≥10% to avoid false triggering.
How does the SMB (DO-214AA) package of P6SMB75A-E3/5B affect PCB layout?
The SMB (DO-214AA) package of P6SMB75A-E3/5B measures 4.06 mm × 5.59 mm with 2.18 mm minimum cathode-band-to-pad spacing. Per Vishay's mechanical data, optimal thermal performance requires mounting on 5.0 mm × 5.0 mm copper pads per terminal; smaller pads reduce pulse power derating. The package supports automated pick-and-place and lead-free reflow (MSL Level 1), but its 100 °C/W junction-to-ambient resistance mandates careful copper pour design to avoid thermal runaway during repeated surges.
Can P6SMB75A-E3/5B be used in bidirectional configurations?
No, P6SMB75A-E3/5B is strictly unidirectional, as indicated by the "A" suffix and cathode band marking. Bidirectional operation requires the "CA" suffix variant (e.g., P6SMB75CA). Using P6SMB75A-E3/5B in reverse-biased AC signal paths will result in forward conduction and failure. For bidirectional protection such as RS-485 or CAN bus lines, select P6SMB75CA-E3/5B or equivalent, which exhibits symmetrical clamping in both polarities.
P6SMB75A-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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB75A-E3/5B FAQ
1.How can I place an order for P6SMB75A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB75A-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 P6SMB75A-E3/5B reliable?
The price and inventory of P6SMB75A-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 P6SMB75A-E3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB75A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB75A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB75A-E3/5B?
P6SMB75A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB75A-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 P6SMB75A-E3/5B?
For technical support, including P6SMB75A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB75A-E3/5B requirements.
6.How does Aetrix verify that P6SMB75A-E3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB75A-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 P6SMB75A-E3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB75A-E3/5B?
All P6SMB75A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB75A-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 P6SMB75A-E3/5B part is unused and in its original packaging.
Return procedure for P6SMB75A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB75A-E3/5B Tags
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