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Vishay General Semiconductor - Diodes Division P4SMA8.2A-E3/61
- Part No.:
- P4SMA8.2A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA8.2A-E3/61.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,930
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Product details
Overview
P4SMA8.2A-E3/61 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 a 7.79 V to 8.61 V breakdown voltage (VBR) at 10 mA, 7.02 V maximum stand-off voltage (VWM), 12.1 V clamping voltage (VC) at 33.1 A peak pulse current, and 400 W peak pulse power capability with 10/1000 µs waveform - ideal for protecting MOSFETs and ICs in industrial sensor interfaces.
For engineers reviewing the P4SMA8.2A-E3/61 datasheet, P4SMA8.2A-E3/61 pinout, P4SMA8.2A-E3/61 application, or P4SMA8.2A-E3/61 equivalent, this page delivers verified electrical parameters, polarity marking guidance, thermal resistance data, RoHS-compliant packaging details, and AEC-Q101 qualification status where applicable.
Technical Context
The P4SMA8.2A-E3/61 operates as a unidirectional avalanche diode with cathode-band polarity marking, optimized for fast transient suppression in DC power rails and low-voltage signal paths. Its glass-passivated junction ensures stable breakdown behavior, while MSL Level 1 moisture sensitivity rating supports standard reflow profiles up to 260 °C peak.
It delivers 12.1 V clamping voltage at 33.1 A peak pulse current under 10/1000 µs waveform, with 0.065 %/°C temperature coefficient of VBR, 120 °C/W junction-to-ambient thermal resistance, and 3.3 W steady-state power dissipation - enabling reliable operation in ambient temperatures from –65 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V to 8.61 V at 10 mA test current - defines precise avalanche onset range for predictable clamping threshold |
| VWM | 7.02 V maximum - ensures no conduction during normal 5 V or 6 V rail operation |
| VC @ IPPM | 12.1 V at 33.1 A - limits downstream voltage stress during 400 W transient events |
| IPPM | 33.1 A peak pulse current - quantifies surge-handling capacity under standardized 10/1000 µs waveform |
| PPPM | 400 W peak pulse power - supports robust protection against inductive switching spikes and ESD-like surges |
| TJ max. | +150 °C - enables use in high-temperature industrial environments without derating below rated power |
| RθJA | 120 °C/W - informs thermal design when mounted on 0.2" × 0.2" copper pads per terminal |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; cathode identified by band marking on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to protected line's lower-potential side (e.g., GND or return path); not active during reverse-transient suppression |
| Cathode | Current exit point during reverse-biased clamping | Connected to protected line's higher-potential side (e.g., VCC or signal rail); conducts avalanche current to shunt transients to ground |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables single-device protection against severe inductive load switching events in 5–12 V systems |
| Glass passivated chip junction | Ensures long-term stability of breakdown voltage and leakage performance across temperature and life cycles |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without preconditioning or special handling |
| AEC-Q101 qualified option available | Validated for automotive-grade reliability (though P4SMA8.2A-E3/61 itself is commercial grade per base suffix) |
| RoHS-compliant, halogen-free variants | E3 suffix confirms compliance with EU RoHS Directive 2011/65/EU and JEDEC JS709E material requirements |
Applications
| Industrial Sensor Interface Protection | Automotive Body Control Module (BCM) Power Rail |
|---|---|
Use Scenario: Protecting 5 V analog sensor outputs (e.g., temperature, pressure) from ESD and load-dump coupling in factory automation PLCs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and MCU ADC input, clamping transients before they reach sensitive analog front-end. Use Value: Limits voltage excursion to ≤12.1 V during 33.1 A surges, preserving ADC integrity and avoiding system resets caused by overvoltage latch-up. |
Use Scenario: Safeguarding 5 V supply lines feeding microcontrollers and CAN transceivers in non-safety-critical BCM subassemblies. IC Role / Device Role / Timing Role: Standoff-rated TVS on 5 V rail upstream of LDO regulators, absorbing coupled transients from relay coils and motor drivers. Use Value: Maintains 7.02 V VWM margin above nominal 5 V rail, preventing leakage-induced power loss while clamping to 12.1 V during ISO 7637-2 Pulse 1/2a events. |
| Consumer USB Port ESD Protection | Telecom DSL Line Interface |
Use Scenario: Secondary-level ESD protection on VBUS line of USB 2.0 ports in set-top boxes and smart displays. IC Role / Device Role / Timing Role: Fast-response unidirectional suppressor placed after primary polymer fuse, providing <1 ns response to ±8 kV HBM discharges. Use Value: Clamps VBUS to 12.1 V within nanoseconds, preventing damage to USB switch ICs and maintaining enumeration functionality after repeated ESD strikes. |
Use Scenario: Overvoltage protection on low-voltage bias rails powering DSL line drivers in residential gateways. IC Role / Device Role / Timing Role: Standoff-rated TVS on 3.3 V or 5 V driver supply, suppressing lightning-induced surges coupled via transformer windings. Use Value: Withstands 400 W pulses while holding clamping voltage below 12.1 V, ensuring driver ICs remain functional after telecom-grade surge tests (ITU-T K.20/21). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | Higher 8.0 V VWM, 12.5 V VC at 32.4 A, SMB package (DO-214AA) - 20 % larger footprint, 10 % higher clamping voltage | Preferred where board space allows larger pad layout and slightly higher clamping is acceptable for tighter VWM margin | Select when needing improved surge current margin (32.4 A vs. 33.1 A) and compatibility with existing SMB footprints |
| 1.5SMC8.2A | Same VBR/VWM/VC specs but SMC (DO-214AB) package - 30 % larger body, 1.5 kW peak power rating | Suitable for high-energy industrial mains-side protection where 400 W is insufficient | Choose only if system-level surge testing exceeds 400 W requirements and PCB layout accommodates larger SMC outline |
Compared with P4SMA8.2A-E3/61, SMBJ8.0A offers marginally higher standoff but requires more PCB area, while 1.5SMC8.2A provides triple the peak power at the cost of footprint and thermal mass - making P4SMA8.2A-E3/61 optimal for space-constrained 5 V rail protection with balanced clamping and manufacturability.
Availability
P4SMA8.2A-E3/61 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive BCM power rails, consumer USB port protection, and telecom DSL line interfaces requiring stable component supply, RoHS compliance, and consistent lead-time visibility.
Supply support for P4SMA8.2A-E3/61 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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series targets cost-sensitive, high-volume transient suppression needs in consumer, industrial, and telecom equipment - delivering standardized TVS performance in compact SMA packages with validated AEC-Q101 variants.
FAQ
What is the breakdown voltage tolerance of P4SMA8.2A-E3/61?
The P4SMA8.2A-E3/61 has a specified breakdown voltage (VBR) range of 7.79 V to 8.61 V at 10 mA test current, representing ±5.0 % tolerance around the nominal 8.2 V rating. This tight distribution ensures consistent clamping behavior across production lots and supports reliable design margining in 5 V systems where VWM = 7.02 V provides 1.98 V headroom.
Is P4SMA8.2A-E3/61 suitable for automotive applications?
P4SMA8.2A-E3/61 is a commercial-grade device with RoHS-compliant E3 suffix; it is not AEC-Q101 qualified. However, the P4SMA8.2AHE3_A variant (same electrical specs, HE3 suffix) is AEC-Q101 qualified for automotive use. Engineers must select the HE3 version explicitly for automotive designs - P4SMA8.2A-E3/61 itself meets all electrical and thermal specs but lacks the required stress-test validation for automotive qualification.
What is the maximum clamping voltage of P4SMA8.2A-E3/61 under surge conditions?
The maximum clamping voltage (VC) of P4SMA8.2A-E3/61 is 12.1 V at 33.1 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value is guaranteed per datasheet and represents the upper limit of voltage seen by downstream circuitry during worst-case transient events - critical for ensuring connected ICs remain within absolute maximum ratings.
How does the thermal resistance of P4SMA8.2A-E3/61 affect PCB layout?
P4SMA8.2A-E3/61 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 temperature under continuous 3.3 W dissipation, designers must provide adequate copper area and avoid excessive trace length or isolation - undersized pads will cause thermal derating and premature failure during repetitive surge events.
Does P4SMA8.2A-E3/61 have polarity marking, and how is it identified?
Yes, P4SMA8.2A-E3/61 is unidirectional and features a visible cathode band marking on the SMA (DO-214AC) package body. The banded end corresponds to the cathode terminal, which must be connected toward the higher-potential side of the protected line (e.g., VCC or signal rail), while the unbanded end is the anode, connected toward ground or return. Incorrect orientation prevents proper clamping function.
P4SMA8.2A-E3/61 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):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 33.1A
- 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)
P4SMA8.2A-E3/61 FAQ
1.How can I place an order for P4SMA8.2A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA8.2A-E3/61 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 P4SMA8.2A-E3/61 reliable?
The price and inventory of P4SMA8.2A-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA8.2A-E3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA8.2A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA8.2A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA8.2A-E3/61?
P4SMA8.2A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA8.2A-E3/61 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 P4SMA8.2A-E3/61?
For technical support, including P4SMA8.2A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA8.2A-E3/61 requirements.
6.How does Aetrix verify that P4SMA8.2A-E3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA8.2A-E3/61 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 P4SMA8.2A-E3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA8.2A-E3/61?
All P4SMA8.2A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA8.2A-E3/61, 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 P4SMA8.2A-E3/61 part is unused and in its original packaging.
Return procedure for P4SMA8.2A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA8.2A-E3/61 Tags
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