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Vishay General Semiconductor - Diodes Division P4SMA82CAHE3_A/H
- Part No.:
- P4SMA82CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA82CAHE3_A/H.pdf
- Description:
- TVS DIODE 70.1VWM 113VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,217
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Product details
Overview
P4SMA82CAHE3_A/H 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 82 V breakdown voltage (VBR min/max = 77.9 V / 86.1 V at 1 mA), 70.1 V standoff voltage (VWM), 113 V maximum clamping voltage (VC) at 3.5 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial systems.
For engineers reviewing the P4SMA82CAHE3_A/H datasheet, P4SMA82CAHE3_A/H pinout, P4SMA82CAHE3_A/H application, or P4SMA82CAHE3_A/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low incremental surge resistance, thermal resistance (RθJA = 120 °C/W), and compatibility with automated SMT placement on standard PCB copper pads.
Technical Context
The P4SMA82CAHE3_A/H operates as a bidirectional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its glass-passivated junction enables fast response time (<1 ns) and stable breakdown characteristics across temperature (tempco = 0.105 %/°C).
It delivers 400 W peak pulse power (derated to 300 W above 91 V) under 10/1000 µs waveform, with 3.5 A peak pulse current (IPPM) and 113 V clamping voltage - validated under JEDEC-standard mounting on 0.2" × 0.2" copper pads. Junction temperature range spans −65 °C to +150 °C, supporting automotive under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 77.9 V / 86.1 V at IT = 1 mA - defines reliable avalanche initiation threshold in both directions |
| VWM | 70.1 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 113 V at 3.5 A - clamped voltage during 10/1000 µs surge, limiting stress on downstream circuitry |
| PPPM | 400 W (≤91 V), 300 W (>91 V) - peak transient energy absorption capability per JEDEC test condition |
| IPPM | 3.5 A - maximum non-repetitive surge current supported at rated clamping voltage |
| RθJA | 120 °C/W - thermal resistance from junction to ambient, critical for derating in enclosed enclosures |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H); matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Common terminal for symmetrical clamping; connects to protected line or ground reference |
| Cathode | Transient return path (bidirectional) | Identical function to Anode; no functional distinction - device is electrically symmetric |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| AEC-Q101 qualification | Validates robustness for automotive applications including engine control units and ADAS sensor interfaces |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage (<1 μA at VWM) over lifetime and temperature |
| MSL Level 1 (260 °C) | Supports lead-free reflow soldering without moisture sensitivity limitations or baking requirements |
| 400 W peak pulse power | Provides margin against ISO 7637-2 Pulse 1/2/5a transients and IEC 61000-4-5 surges in industrial systems |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicles. IC Role / Device Role / Timing Role: Bidirectional TVS placed between signal line and chassis ground to clamp ±100 V spikes within nanoseconds. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V interface ICs while maintaining signal integrity due to low capacitance (<100 pF at VWM). |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to 24 V DC field wiring surges and relay coil kickback. IC Role / Device Role / Timing Role: Standoff-rated TVS shunting transients before they reach optocoupler or microcontroller GPIO pins. Use Value: Enables compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) without additional filtering components. |
| Telecom Line Interface | Consumer Power Adapter ESD Protection |
|
Use Scenario: Shielding Ethernet PHY magnetics secondary side and RS-485 transceiver terminals from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level transient suppressor mounted at connector entry point, upstream of common-mode chokes. Use Value: Limits induced common-mode voltage to <113 V, preserving isolation barrier integrity and preventing data corruption. |
Use Scenario: Adding secondary-side surge immunity to USB-C PD adapters and AC/DC wall adapters handling ungrounded user contact. IC Role / Device Role / Timing Role: Low-leakage TVS across output rails (e.g., 5 V/9 V/20 V) to absorb human-body-model (HBM) and system-level ESD events. Use Value: Meets UL 497B recognition and maintains <1 μA leakage at full-rated output voltage for standby efficiency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ85CA | Higher VWM (72.2 V), higher VC (121 V), same SMA package but larger SMB footprint (DO-214AA) | Lower clamping ratio (VC/VBR ≈ 1.42 vs. 1.38), less suitable for tight-margin 5 V rail protection | Select when board layout allows SMB package and higher clamping voltage is acceptable for 24 V systems |
| SMCJ85CA | Same VBR/VWM range, 1500 W rating, SMC (DO-214AB) package - 7.11 mm × 6.22 mm | Higher power handling but 3× larger footprint and 2.5× higher RθJA (100 °C/W), requiring more copper area | Choose for high-energy surge environments (e.g., outdoor telecom) where space permits larger package |
Compared with SMBJ85CA and SMCJ85CA, the P4SMA82CAHE3_A/H 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 400 W surge immunity suffices.
Availability
P4SMA82CAHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter designs requiring stable component supply with AEC-Q101 assurance and RoHS compliance.
Supply support for P4SMA82CAHE3_A/H 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, precision, and automotive-grade qualification.
The P4SMA Series targets cost-sensitive, high-volume transient suppression needs in automotive, industrial, and communications equipment - delivering standardized TVS performance in compact surface-mount packages with AEC-Q101 and UL 497B recognition.
FAQ
What is the breakdown voltage tolerance for P4SMA82CAHE3_A/H?
The P4SMA82CAHE3_A/H has a specified breakdown voltage range of 77.9 V to 86.1 V at 1 mA test current, corresponding to ±5% tolerance around the nominal 82 V rating. This tolerance is measured per ANSI/IEEE C62.35 and applies equally in both directions due to its bidirectional construction. The P4SMA82CAHE3_A/H maintains this specification across −65 °C to +150 °C operating junction temperature.
Is P4SMA82CAHE3_A/H suitable for automotive applications?
Yes, the P4SMA82CAHE3_A/H is AEC-Q101 qualified and explicitly designated for automotive use with ordering code suffix "HE3" indicating RoHS-compliant and AEC-Q101–qualified construction. It meets stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD per AEC-Q101 Rev D, making it appropriate for engine control, body electronics, and ADAS sensor protection circuits.
What is the maximum clamping voltage of P4SMA82CAHE3_A/H under surge conditions?
The P4SMA82CAHE3_A/H exhibits a maximum clamping voltage (VC) of 113 V at 3.5 A peak pulse current with a 10/1000 µs waveform, as verified on standard 0.2" × 0.2" copper pads. This value represents the upper limit of voltage seen by protected circuitry during worst-case transient events and is guaranteed across the full operating temperature range.
Does P4SMA82CAHE3_A/H have polarity markings?
No, the P4SMA82CAHE3_A/H is a bidirectional TVS diode and carries no polarity marking on its SMA (DO-214AC) package. Unlike unidirectional variants (e.g., P4SMA82A), it functions identically in either orientation and is intended for AC signal lines, differential buses, or floating grounds where polarity reversal may occur.
What is the thermal resistance of P4SMA82CAHE3_A/H?
The P4SMA82CAHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on minimum recommended PCB copper pads. This value assumes standard JEDEC test conditions (single device on 0.2" × 0.2" copper pad per terminal) and is essential for calculating safe power derating above 25 °C ambient temperature.
P4SMA82CAHE3_A/H 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:
- -
- 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_A/H FAQ
1.How can I place an order for P4SMA82CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA82CAHE3_A/H 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_A/H reliable?
The price and inventory of P4SMA82CAHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA82CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for P4SMA82CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA82CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA82CAHE3_A/H?
P4SMA82CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA82CAHE3_A/H 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_A/H?
For technical support, including P4SMA82CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA82CAHE3_A/H requirements.
6.How does Aetrix verify that P4SMA82CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P4SMA82CAHE3_A/H 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_A/H meets industry standards.
7.What is the process for return or replacement of P4SMA82CAHE3_A/H?
All P4SMA82CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA82CAHE3_A/H, 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_A/H part is unused and in its original packaging.
Return procedure for P4SMA82CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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