My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P4SMA82CAHE3_A/I
- Part No.:
- P4SMA82CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA82CAHE3_A/I.pdf
- Description:
- TVS DIODE 70.1VWM 113VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,343
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4SMA82CAHE3_A/I 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 - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the P4SMA82CAHE3_A/I datasheet, P4SMA82CAHE3_A/I pinout, P4SMA82CAHE3_A/I application, or P4SMA82CAHE3_A/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 120 °C/W), and bidirectional clamping behavior critical for ESD and lightning transient design validation.
Technical Context
The P4SMA82CAHE3_A/I operates as a bidirectional avalanche diode, symmetrically clamping both positive and negative transients without polarity marking. Its glass-passivated junction enables fast response (<1 ns) and low incremental surge resistance, supporting repetitive 0.01% duty-cycle surges per JEDEC standards.
Rated for -65 °C to +150 °C junction temperature, it delivers 3.3 W steady-state power dissipation on infinite heatsink at 50 °C ambient and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. The device is AEC-Q101 qualified (HE3 suffix) and RoHS-compliant, targeting automotive-grade reliability in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff Voltage) | 70.1 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 77.9–86.1 V at 1 mA - Avalanche onset range; ensures consistent turn-on across production lots |
| VC (Clamping Voltage) | 113 V at 3.5 A IPPM - Peak voltage seen by protected circuit during 10/1000 µs surge; determines downstream component stress |
| PPPM (Peak Pulse Power) | 400 W - Sustained transient energy handling capability under standard 10/1000 µs waveform |
| ID (Reverse Leakage) | 1.0 µA at VWM - Low leakage preserves signal integrity and minimizes standby power loss |
| TJ max. | +150 °C - Enables operation in under-hood automotive and high-temperature industrial enclosures |
| RθJA | 120 °C/W - Thermal resistance from junction to ambient; informs PCB copper pad sizing for thermal management |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional configuration with no polarity marking. Matte tin-plated leads, compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative half-cycle) | Conducts during negative voltage excursions; symmetrical with cathode for bidirectional clamping |
| Cathode | Transient current entry (positive half-cycle) | Conducts during positive voltage excursions; functionally identical to anode in CA-series devices |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| 400 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-line) with appropriate series impedance |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking; compatible with automated assembly at 260 °C peak |
| Glass passivated junction | Ensures stable VBR over lifetime and improved resistance to humidity-induced parameter drift |
| Bidirectional symmetry | Eliminates polarity concerns in AC-coupled or differential signal paths such as CAN FD or RS-485 |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting ABS wheel speed sensors and airbag crash sensors from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to limit transient voltage to ≤113 V. Use Value: Prevents latch-up or permanent damage to analog front-end ICs while maintaining signal fidelity under 100 kHz sensor bandwidth. |
Use Scenario: Shielding PLC digital input modules from inductive switching transients on 24 V DC field wiring. IC Role / Device Role / Timing Role: Primary surge shunt device mounted adjacent to terminal block, conducting >3.5 A transient current within <1 ns. Use Value: Enables compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) without external RC filtering or varistor cascading. |
| Telecom Line Interface | Consumer USB Port Protection |
Use Scenario: Safeguarding Ethernet PHY transceivers and PoE injectors against lightning-induced common-mode surges on RJ45 ports. IC Role / Device Role / Timing Role: Common-mode TVS pair (two P4SMA82CAHE3_A/I) across differential pairs to clamp mode conversion transients. Use Value: Limits induced voltage to safe levels for 100BASE-TX magnetics and PHY ESD structures without degrading 100 MHz signal integrity. |
Use Scenario: Adding secondary-level surge protection on USB 2.0 VBUS and D+/D- lines in smart home hubs. IC Role / Device Role / Timing Role: Secondary clamping stage after primary polymer PTC, activated only during >113 V events. Use Value: Extends system-level robustness beyond USB-IF ESD requirements (±15 kV contact) to include 10/1000 µs surge immunity up to 400 W. |
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 die size; 600 W PPPM rating | Better suited for 75–85 V nominal systems requiring higher surge margin; less optimal for 24 V or 48 V rails due to reduced clamping margin | Select SMBJ85CA when system nominal voltage exceeds 70 V and 600 W surge headroom is required |
| 1.5KE82CA | Through-hole DO-201 package; 400 W PPPM, VWM = 70.1 V, VC = 113 V - identical electrical specs but different mounting | Used where manual assembly, high-reliability through-hole anchoring, or legacy board compatibility is mandatory | Choose 1.5KE82CA only when SMT is not feasible; avoid for new automotive designs due to lack of AEC-Q101 qualification |
Compared with P4SMA82CAHE3_A/I, SMBJ85CA offers higher surge capacity but looser clamping, while 1.5KE82CA matches electrical performance but lacks AEC-Q101 qualification and surface-mount compatibility - making P4SMA82CAHE3_A/I the optimal choice for new automotive and industrial SMT designs requiring certified reliability.
Availability
P4SMA82CAHE3_A/I is available at Aetrix Electronics and suitable for automotive electronics, industrial programmable logic controllers, and telecom infrastructure requiring stable component supply with AEC-Q101 assurance and full traceability.
Supply support for P4SMA82CAHE3_A/I 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 passive components with emphasis on reliability and application-specific optimization.
The P4SMA Series targets cost-sensitive, high-volume transient protection needs in automotive, industrial, and communications equipment - engineered for robust surge handling, AEC-Q101 compliance, and seamless SMT integration.
FAQ
What does the "CA" suffix indicate in P4SMA82CAHE3_A/I?
The "CA" suffix in P4SMA82CAHE3_A/I denotes a bidirectional configuration, meaning the device clamps voltage transients equally in both polarities without cathode marking. This distinguishes it from unidirectional variants (e.g., P4SMA82A) and makes P4SMA82CAHE3_A/I suitable for AC-coupled or differential signal lines where polarity reversal is possible.
Is P4SMA82CAHE3_A/I AEC-Q101 qualified?
Yes, P4SMA82CAHE3_A/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in Vishay's P4SMA datasheet (Rev. 09-Jan-2024). This qualification covers stress testing for automotive environments including temperature cycling, mechanical shock, and high-temperature operating life - validating P4SMA82CAHE3_A/I for use in engine control, body electronics, and ADAS subsystems.
What is the maximum clamping voltage of P4SMA82CAHE3_A/I and at what current is it specified?
The maximum clamping voltage (VC) of P4SMA82CAHE3_A/I is 113 V, measured at a peak pulse current (IPPM) of 3.5 A using the standardized 10/1000 µs waveform. This value represents the worst-case voltage imposed on the protected circuit during surge events and is critical for ensuring downstream ICs remain within their absolute maximum ratings.
Can P4SMA82CAHE3_A/I be used in place of a unidirectional TVS like P4SMA82A?
No - P4SMA82CAHE3_A/I is bidirectional and lacks polarity marking, whereas P4SMA82A is unidirectional with a defined cathode band. Substituting P4SMA82CAHE3_A/I for P4SMA82A in DC-biased circuits may cause unintended conduction during normal operation. Use P4SMA82CAHE3_A/I only where true bidirectional clamping is required, such as across AC lines or differential data buses.
What packaging and reel options are available for P4SMA82CAHE3_A/I?
P4SMA82CAHE3_A/I is supplied in 13-inch diameter plastic tape and reel format (I-type packaging) with a base quantity of 7500 pieces per reel. The "I" suffix explicitly denotes this large-reel configuration, optimized for high-volume SMT production lines. Tape dimensions and sprocket hole pitch comply with EIA-481 standards for automated pick-and-place compatibility.
P4SMA82CAHE3_A/I 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/I FAQ
1.How can I place an order for P4SMA82CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA82CAHE3_A/I 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/I reliable?
The price and inventory of P4SMA82CAHE3_A/I 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/I is usually 5 days.
3.What payment methods are accepted for P4SMA82CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA82CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA82CAHE3_A/I?
P4SMA82CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA82CAHE3_A/I 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/I?
For technical support, including P4SMA82CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA82CAHE3_A/I requirements.
6.How does Aetrix verify that P4SMA82CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P4SMA82CAHE3_A/I 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/I meets industry standards.
7.What is the process for return or replacement of P4SMA82CAHE3_A/I?
All P4SMA82CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA82CAHE3_A/I, 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/I part is unused and in its original packaging.
Return procedure for P4SMA82CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA82CAHE3_A/I Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
