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Vishay General Semiconductor - Diodes Division P4SMA7.5A-M3/61
- Part No.:
- P4SMA7.5A-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA7.5A-M3/61.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,604
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Product details
Overview
P4SMA7.5A-M3/61 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features 7.13 V to 7.88 V breakdown voltage at 10 mA test current, 6.40 V maximum standoff voltage, 11.3 V clamping voltage at 35.4 A peak pulse current, and 400 W peak pulse power capability with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P4SMA7.5A-M3/61 datasheet, P4SMA7.5A-M3/61 pinout, P4SMA7.5A-M3/61 application, or P4SMA7.5A-M3/61 equivalent, key selection criteria include unidirectional polarity, 11.3 V clamping performance under 35.4 A surge, thermal resistance of 120 °C/W, halogen-free RoHS compliance (M3 suffix), and AEC-Q101 qualification readiness via HM3/HE3 variants.
Technical Context
The P4SMA7.5A-M3/61 operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology for stable breakdown behavior and fast response to ESD and lightning-induced transients. Its clamping action begins at 6.40 V standoff and limits voltage to ≤11.3 V during 35.4 A 10/1000 µs pulses, with low incremental surge resistance ensuring minimal overshoot.
Thermally, it sustains operation up to 150 °C junction temperature, with 120 °C/W junction-to-ambient thermal resistance when mounted on standard 0.2" × 0.2" copper pads. The device meets J-STD-020 MSL Level 1 and supports automated SMT placement due to its low-profile SMA package and matte tin-plated leads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 7.13–7.88 V at 10 mA - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| Standoff Voltage VWM | 6.40 V max - ensures no conduction during normal 5 V or 6 V rail operation |
| Clamping Voltage VC | 11.3 V at 35.4 A (10/1000 µs) - limits downstream voltage stress to safe levels for 3.3 V/5 V logic interfaces |
| Peak Pulse Power PPPM | 400 W - delivers robust protection against IEC 61000-4-5 Level 3 surges (1 kV/42 Ω) |
| Package | SMA (DO-214AC) - industry-standard SMD outline enabling high-density PCB layout and reflow compatibility |
| RoHS Status | Halogen-free, RoHS-compliant (M3 suffix) - satisfies environmental compliance without compromising surge robustness |
| Junction Temperature | -65 to +150 °C - supports extended operation in under-hood automotive and industrial ambient conditions |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, unidirectional configuration with cathode band marking. Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H); weight: 0.064 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to protected line's lower-potential side (e.g., GND or return path) in unidirectional TVS configuration |
| Cathode | Current exit terminal during reverse-biased clamping | Connected to protected line (e.g., 5 V rail or signal trace); band identifies this terminal on PCB silkscreen |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables single-device protection against IEC 61000-4-5 surge events without external derating |
| Glass passivated chip 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 baking |
| AEC-Q101 qualification path | HM3 variant available - enables drop-in use in automotive ECUs requiring qualified TVS components |
| Low profile and automated placement compatible | Reduces assembly cost and improves yield in high-volume SMT production lines |
Applications
| Industrial Sensor Interface Protection | Automotive Body Control Module (BCM) Power Rail |
|---|---|
Use Scenario: Protecting analog output lines (e.g., 4–20 mA, 0–5 V) of pressure/temperature sensors from inductive switching noise and load dump transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and microcontroller ADC input to clamp spikes before signal conditioning stage. Use Value: Limits transient voltage to ≤11.3 V, preventing ADC saturation or latch-up while maintaining <1 µA leakage at 6.4 V standoff. |
Use Scenario: Safeguarding 5 V/12 V power rails feeding microcontrollers and CAN transceivers in BCMs exposed to ISO 7637-2 pulse 1, 2a, and 5a. IC Role / Device Role / Timing Role: Primary clamping device on supply input, positioned upstream of LDO regulators to absorb energy before regulation. Use Value: Withstands 35.4 A surge current and dissipates 400 W peak power, reducing need for secondary TVS stages or oversized capacitors. |
| Consumer USB Port ESD Protection | Telecom DSL Line Surge Suppression |
Use Scenario: Secondary-level protection on VBUS and D+/D− lines of USB 2.0 ports against contact ESD (IEC 61000-4-2 ±8 kV). IC Role / Device Role / Timing Role: Fast-response clamping diode placed after common-mode choke to limit differential-mode transients. Use Value: Sub-1 ns response time and 11.3 V clamping ensure USB PHY ICs remain within absolute maximum ratings during ESD events. |
Use Scenario: Front-end protection of ADSL/VDSL line interface circuits subjected to lightning-induced surges per ITU-T K.20/K.44. IC Role / Device Role / Timing Role: First-stage unidirectional suppressor on tip/ring lines, coordinated with gas discharge tube (GDT) for hybrid protection. Use Value: 400 W rating and 120 °C/W thermal resistance allow sustained duty-cycle operation in outdoor DSLAM cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A | Higher 7.0 V nominal VWM, 12.5 V VC at 32.1 A, SMB package (larger footprint) | Lower clamping ratio but requires more PCB area; better suited for higher-energy 1 kW surge designs | Select when board space allows larger SMB package and tighter VWM tolerance is needed |
| 1.5SMC7.5A | Same VBR range, 12.0 V VC at 33.3 A, SMC (DO-214AB) package with higher thermal mass | Superior thermal dissipation (RθJA = 60 °C/W) but incompatible footprint; preferred for high-reliability industrial power supplies | Choose for elevated ambient temperature environments where junction heating must be minimized |
Compared with P4SMA7.5A-M3/61, SMBJ7.0A offers marginally tighter standoff but less compact layout, while 1.5SMC7.5A provides superior thermal handling at the cost of PCB real estate - making P4SMA7.5A-M3/61 optimal for space-constrained, cost-sensitive consumer and automotive modules requiring halogen-free compliance.
Availability
P4SMA7.5A-M3/61 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, consumer USB port protection, and telecom DSL line surge suppression requiring stable component supply, halogen-free compliance, and AEC-Q101 upgrade path.
Supply support for P4SMA7.5A-M3/61 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific performance.
The P4SMA7.5A-M3/61 belongs to Vishay's TRANSZORB® TVS family, engineered for rapid transient suppression in harsh electrical environments - targeting automotive, industrial, and communications systems where robustness and consistency are critical.
FAQ
What is the clamping voltage of P4SMA7.5A-M3/61 under standard surge conditions?
The P4SMA7.5A-M3/61 has a maximum clamping voltage (VC) of 11.3 V at 35.4 A peak pulse current with a 10/1000 µs waveform. This value is measured per JEDEC standards and ensures downstream ICs operating at 3.3 V or 5 V remain within safe absolute maximum ratings during transient events. The clamping performance is guaranteed across the full operating temperature range of -65 °C to +150 °C.
Is P4SMA7.5A-M3/61 suitable for automotive applications?
Yes - the P4SMA7.5A-M3/61 is halogen-free and RoHS-compliant, and its base P4SMA7.5A variant is AEC-Q101 qualified when ordered with HM3 or HE3 suffixes (e.g., P4SMA7.5AHM3_A). While the M3/61 version itself is commercial-grade, it shares identical electrical and thermal characteristics and can be directly upgraded to automotive-qualified versions without design change.
What does the "M3" suffix indicate in P4SMA7.5A-M3/61?
The "M3" suffix in P4SMA7.5A-M3/61 denotes halogen-free, RoHS-compliant construction meeting IEC 61249-2-21 requirements. It also signifies compliance with JESD201 Class 2 whisker resistance and matte tin-plated terminations solderable per J-STD-002 and JESD22-B102 - distinguishing it from E3 (standard RoHS) and HM3 (AEC-Q101 + halogen-free) variants.
How does P4SMA7.5A-M3/61 compare to bidirectional TVS diodes like P4SMA7.5CA?
The P4SMA7.5A-M3/61 is unidirectional and intended for DC line protection where polarity is fixed (e.g., 5 V supply rails), offering lower leakage (<500 µA at VWM) and sharper knee characteristics. In contrast, P4SMA7.5CA is bidirectional, suitable for AC or floating signal lines (e.g., RS-485), but exhibits higher leakage and symmetrical clamping in both directions - making P4SMA7.5A-M3/61 preferable for low-power, polarity-defined applications.
What is the thermal resistance of P4SMA7.5A-M3/61, and how does it affect layout?
The P4SMA7.5A-M3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe junction temperatures under repetitive surges, PCB layout must provide adequate copper area and avoid excessive trace length between the device and ground/power planes - especially critical in enclosed industrial enclosures above 70 °C ambient.
P4SMA7.5A-M3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- P4SMA, 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):
- 35.4A
- Power - Peak Pulse:
- 400W
- 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-214AC (SMA)
P4SMA7.5A-M3/61 FAQ
1.How can I place an order for P4SMA7.5A-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA7.5A-M3/61 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 P4SMA7.5A-M3/61 reliable?
The price and inventory of P4SMA7.5A-M3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA7.5A-M3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA7.5A-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA7.5A-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA7.5A-M3/61?
P4SMA7.5A-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA7.5A-M3/61 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 P4SMA7.5A-M3/61?
For technical support, including P4SMA7.5A-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA7.5A-M3/61 requirements.
6.How does Aetrix verify that P4SMA7.5A-M3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA7.5A-M3/61 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 P4SMA7.5A-M3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA7.5A-M3/61?
All P4SMA7.5A-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA7.5A-M3/61, 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 P4SMA7.5A-M3/61 part is unused and in its original packaging.
Return procedure for P4SMA7.5A-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA7.5A-M3/61 Tags
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