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Vishay General Semiconductor - Diodes Division P4SMA82CAHE3/61
- Part No.:
- P4SMA82CAHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA82CAHE3/61.pdf
- Description:
- TVS DIODE 70.1VWM 113VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,840
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Product details
Overview
P4SMA82CAHE3/61 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on signal and power lines. It features a 70.1 V standoff voltage (VWM), 77.9–86.1 V breakdown voltage (VBR) at 1 mA, 113 V maximum clamping voltage (VC) at 3.5 A peak pulse current (IPPM), and 400 W peak pulse power rating with 10/1000 µs waveform - suitable for protecting automotive sensor interfaces and industrial I/O lines.
For engineers reviewing the P4SMA82CAHE3/61 datasheet, P4SMA82CAHE3/61 pinout, P4SMA82CAHE3/61 application, or P4SMA82CAHE3/61 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on standard PCB pads.
Technical Context
This device operates as a voltage-clamped transient protector with symmetrical conduction in both directions due to its bidirectional construction. Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns), while the SMA package supports high thermal dissipation under repetitive surge conditions.
Rated for 400 W peak pulse power (10/1000 µs) and 3.3 W steady-state power dissipation, it delivers consistent clamping performance across -65 °C to +150 °C operating temperature range. The device meets J-STD-020 MSL Level 1 and is qualified to AEC-Q101 for automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff Voltage) | 70.1 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 77.9–86.1 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 113 V at IPPM = 3.5 A - Peak voltage seen by protected circuit during 10/1000 µs surge; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 400 W - Surge energy handling capacity with standard 10/1000 µs waveform; enables robust protection against ESD and load dump. |
| ID (Reverse Leakage) | 1.0 µA at VWM - Ultra-low leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, molded plastic case with matte tin-plated leads; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward conduction | For bidirectional TVS, anode and cathode are functionally symmetric; no polarity marking required on device body. |
| Cathode | Current exit terminal in forward conduction | Same electrical role as anode in bidirectional mode; terminals interchangeable for transient suppression in AC or differential signal paths. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines without polarity concerns. |
| 400 W peak pulse power (10/1000 µs) | Handles high-energy transients such as ISO 7637-2 Load Dump pulses in 12 V automotive systems. |
| AEC-Q101 qualification | Validates suitability for automotive control units, ADAS sensors, and infotainment interfaces requiring long-term field reliability. |
| Low profile SMA package | 0.208" × 0.157" footprint with 0.078" height - fits dense PCB layouts and supports high-speed reflow soldering. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage over lifetime, critical for precision analog and communication circuits. |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/FlexRay transceiver I/O pins from ESD and inductive switching noise in engine control modules. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to limit transient excursions before reaching PHY layer. Use Value: Prevents latch-up or permanent damage to transceivers during 15 kV contact ESD events per IEC 61000-4-2. |
Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Primary transient suppressor across input terminals, shunting surge energy away from precision op-amps and ADC front-ends. Use Value: Maintains signal accuracy by limiting clamped voltage to ≤113 V, well below input stage breakdown thresholds. |
| Telecom Line Card Protection | Consumer Appliance Motor Control |
Use Scenario: Shielding Ethernet PHY magnetics and data line transformers from lightning-induced surges in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Secondary-level protector after gas discharge tube (GDT), providing fast-response clamping for residual transients. Use Value: Fast <1 ns response complements slower GDTs, reducing let-through energy to sub-100 V levels during multi-stage protection. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Across motor terminals to clamp inductive kickback during MOSFET commutation cycles. Use Value: Enables use of lower-voltage-rated MOSFETs (e.g., 100 V) while surviving 400 W surge pulses without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ85CA | Higher VWM (72.2 V), higher VC (125 V), same SMA package but larger SMB (DO-214AA) footprint. | Lower power density; requires larger PCB area and has 30% higher clamping voltage. | Select when board layout allows SMB package and higher clamping voltage is acceptable for system margin. |
| SMCJ85CA | Same VWM/VC specs but in SMC (DO-214AB) package; 1500 W PPPM rating and higher thermal mass. | Over-specified for 400 W needs; used where extended surge endurance or higher IPPM (>10 A) is required. | Choose only if future design scaling demands >1000 W surge handling or improved thermal derating at elevated ambient temperatures. |
Compared with SMBJ85CA and SMCJ85CA, P4SMA82CAHE3/61 offers optimal balance of compact SMA footprint, AEC-Q101 qualification, and precise 70.1 V standoff - making it preferred for space-constrained automotive and industrial PCBs where exact voltage coordination and automotive reliability are mandatory.
Availability
P4SMA82CAHE3/61 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O conditioning, and telecom line card surge suppression requiring stable component supply, RoHS compliance, and AEC-Q101 traceability.
Supply support for P4SMA82CAHE3/61 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 protection needs in automotive, industrial, and consumer electronics - delivering standardized TVS performance in compact surface-mount packages with automotive-grade qualification options.
FAQ
What is the standoff voltage (VWM) of P4SMA82CAHE3/61?
The standoff voltage (VWM) of P4SMA82CAHE3/61 is 70.1 V. This value represents the maximum continuous reverse voltage the device can withstand without entering breakdown, ensuring reliable operation under normal circuit conditions while maintaining low leakage current (≤1.0 µA). It is measured at 25 °C and forms the basis for coordinating protection margins in designs using P4SMA82CAHE3/61.
Is P4SMA82CAHE3/61 suitable for automotive applications?
Yes, P4SMA82CAHE3/61 is AEC-Q101 qualified and specifically intended for automotive use. Its qualification covers temperature cycling, humidity bias, and mechanical shock testing per automotive reliability standards. The device's 150 °C maximum junction temperature, RoHS-compliant HE3 suffix, and bidirectional clamping make it appropriate for engine control units, body electronics, and ADAS sensor interfaces where P4SMA82CAHE3/61 provides certified transient protection.
What is the clamping voltage (VC) of P4SMA82CAHE3/61 at rated peak pulse current?
The clamping voltage (VC) of P4SMA82CAHE3/61 is 113 V at a peak pulse current (IPPM) of 3.5 A with a 10/1000 µs waveform. This value defines the maximum voltage imposed on the protected circuit during a standardized surge event and is critical for ensuring downstream ICs remain within their absolute maximum ratings. The VC specification is guaranteed across the full operating temperature range for P4SMA82CAHE3/61.
Does P4SMA82CAHE3/61 have polarity markings on the package?
No, P4SMA82CAHE3/61 does not have polarity markings because it is a bidirectional TVS diode. Unlike unidirectional variants (e.g., P4SMA82A), the CA suffix indicates symmetrical conduction - meaning both terminals serve identical roles in clamping transients regardless of voltage polarity. This eliminates orientation constraints during automated placement and simplifies layout for differential or AC-coupled signal paths using P4SMA82CAHE3/61.
What package type does P4SMA82CAHE3/61 use, and what are its key mechanical attributes?
P4SMA82CAHE3/61 uses the SMA (DO-214AC) surface-mount package: 0.208" × 0.157" outline with 0.078" height, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and UL 94 V-0 rated molding compound. Its low profile and MSL Level 1 rating support high-yield reflow assembly, while the 0.2" × 0.2" copper pad recommendation ensures adequate thermal dissipation for P4SMA82CAHE3/61's 400 W surge rating.
P4SMA82CAHE3/61 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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 70.1V
- Voltage - Breakdown (Min):
- 77.9V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 3.5A
- Power - Peak Pulse:
- 400W
- 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-214AC (SMA)
P4SMA82CAHE3/61 FAQ
1.How can I place an order for P4SMA82CAHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA82CAHE3/61 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 P4SMA82CAHE3/61 reliable?
The price and inventory of P4SMA82CAHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA82CAHE3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA82CAHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA82CAHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA82CAHE3/61?
P4SMA82CAHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA82CAHE3/61 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 P4SMA82CAHE3/61?
For technical support, including P4SMA82CAHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA82CAHE3/61 requirements.
6.How does Aetrix verify that P4SMA82CAHE3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA82CAHE3/61 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 P4SMA82CAHE3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA82CAHE3/61?
All P4SMA82CAHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA82CAHE3/61, 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 P4SMA82CAHE3/61 part is unused and in its original packaging.
Return procedure for P4SMA82CAHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA82CAHE3/61 Tags
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