My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P4SMA82CA-E3/5A
- Part No.:
- P4SMA82CA-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA82CA-E3/5A.pdf
- Description:
- TVS DIODE 70.1VWM 113VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,974
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4SMA82CA-E3/5A from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in the 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, and 400 W peak pulse power rating with a 10/1000 µs waveform - used to protect MOSFETs, sensor interfaces, and communication lines in industrial and automotive systems.
For engineers reviewing the P4SMA82CA-E3/5A datasheet, P4SMA82CA-E3/5A pinout, P4SMA82CA-E3/5A application, or P4SMA82CA-E3/5A equivalent, key selection criteria include bidirectional clamping capability, low incremental surge resistance, AEC-Q101 qualification status (via HE3/HM3 variants), MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
The P4SMA82CA-E3/5A operates as a bidirectional avalanche diode, delivering symmetrical clamping in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns), while the DO-214AC package provides thermal resistance of 120 °C/W (junction-to-ambient) and supports 3.3 W steady-state power dissipation at 50 °C ambient.
It complies with IEC 61000-4-2 (ESD) and IEC 61000-4-4 (EFT) immunity requirements when applied with proper PCB layout. The device is rated for repetitive 10/1000 µs surges at 0.01% duty cycle (400 W up to 91 V; derated to 300 W above), and its temperature coefficient of VBR is +0.105 %/°C - enabling predictable performance across -65 °C to +150 °C operating junction range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff) | 70.1 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown) | 77.9–86.1 V at 1 mA - Guaranteed avalanche initiation range; ensures consistent turn-on under transient stress |
| VC (Clamping) | 113 V at 3.5 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; determines downstream IC survivability |
| PPPM | 400 W - Surge energy handling capacity; enables protection against IEC 61000-4-5 line surges up to specified waveform limits |
| IPPM | 3.5 A - Peak pulse current supported at VC; correlates directly with system-level surge current magnitude |
| TJ Range | -65 °C to +150 °C - Full operational junction temperature span; supports under-hood automotive and industrial environments |
| Package | SMA (DO-214AC) - Standardized SMT outline with 5.0 mm × 5.0 mm copper pad requirement; compatible with J-STD-020 MSL Level 1 reflow |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional configuration with no polarity marking. Cathode/anode terminals are functionally symmetric; device has two terminals only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no fixed polarity designation |
| Terminal 2 | Anode / Cathode (bidirectional) | Electrically identical to Terminal 1; forms symmetrical clamping path across protected line pair |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., RS-485, CAN, USB D+/D−) without polarity concerns |
| 400 W peak pulse power | Supports robust immunity to IEC 61000-4-5 Level 3 (1 kV open-circuit, 2 Ω source impedance) surges on 24 V industrial buses |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow profile use without baking; reduces manufacturing complexity and cost |
| AEC-Q101 qualified variants | HE3/HM3 suffix versions meet automotive-grade reliability requirements for engine control, body electronics, and ADAS sensor interfaces |
| Glass passivated junction | Ensures stable leakage current (<1 µA at VWM) and long-term parameter stability under thermal cycling and humidity exposure |
Applications
| Industrial Sensor Interface Protection | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Protecting analog output lines (4–20 mA) and digital I/O (LIN, PWM) in factory automation sensors exposed to relay switching noise and ESD events. IC Role / Device Role / Timing Role: Bidirectional TVS placed across signal and ground to clamp transients before they reach ADC input or microcontroller GPIO. Use Value: Limits induced voltage to ≤113 V during 3.5 A surges, preventing latch-up or permanent damage to 3.3 V/5 V interface ICs. |
Use Scenario: Safeguarding LIN bus transceivers and power window motor drivers in BCMs subjected to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Primary transient suppressor on 12 V supply rail and LIN data line, operating alongside upstream fuses and secondary filtering. Use Value: Withstands 400 W pulses and maintains <1 µA leakage at 70.1 V, ensuring low quiescent current and reliable wake-up functionality. |
| Telecom Power Supply Input | Consumer USB-C Port ESD Protection |
|
Use Scenario: Secondary surge suppression on 48 V DC input of PoE-powered network switches after primary MOV-based front-end protection. IC Role / Device Role / Timing Role: Fast-response clamping device absorbing residual energy not handled by bulk varistors; placed close to DC-DC converter input. Use Value: Clamps to 113 V within nanoseconds, protecting 60 V-rated input capacitors and high-side MOSFETs from overvoltage failure. |
Use Scenario: Board-level ESD protection for USB-C CC and SBU pins in portable audio devices and docking stations. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS integrated into compact layout near connector, meeting IEC 61000-4-2 ±15 kV contact discharge. Use Value: Delivers sub-113 V clamping at 3.5 A while maintaining <1 µA leakage at 70.1 V - preserving signal integrity and battery runtime. |
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 footprint but larger SMB (DO-214AA) package | Lower clamping ratio (VC/VBR ≈ 1.45 vs. 1.41), slightly reduced surge current density per unit area | Select when board space allows larger package and higher clamping voltage is acceptable for downstream 15 V-tolerant circuits |
| 1.5KE82CA | Through-hole TO-218 package, same VWM/VBR specs, 1500 W peak power rating | Designed for high-energy AC mains or telecom line protection; incompatible with SMT-only assembly | Choose only for legacy through-hole designs requiring higher energy absorption; not suitable for new SMT layouts |
Compared with SMBJ85CA and 1.5KE82CA, the P4SMA82CA-E3/5A offers optimal balance of SMT compatibility, 400 W surge capability, and tight 113 V clamping in the smallest standardized surface-mount TVS outline - making it preferred for space-constrained industrial and automotive PCBs where reflow process control and MSL compliance are critical.
Availability
P4SMA82CA-E3/5A is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body electronics, telecom power inputs, and consumer USB-C port protection requiring stable component supply, RoHS-compliant materials, and traceable sourcing.
Supply support for P4SMA82CA-E3/5A 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, precision, and application-specific performance.
The P4SMA Series is engineered for robust transient suppression in harsh environments - targeting industrial automation, automotive subsystems, and communications infrastructure where consistent clamping behavior and AEC-Q101 qualification matter.
FAQ
What is the clamping voltage of P4SMA82CA-E3/5A at its rated peak pulse current?
The P4SMA82CA-E3/5A has a maximum clamping voltage (VC) of 113 V at 3.5 A peak pulse current with a 10/1000 µs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during transient events. The P4SMA82CA-E3/5A maintains this clamping performance across its full operating temperature range and is validated per JEDEC and IEC surge test protocols.
Is P4SMA82CA-E3/5A suitable for automotive applications?
The base P4SMA82CA-E3/5A is RoHS-compliant and commercial-grade; however, Vishay offers AEC-Q101 qualified variants under HE3 and HM3 suffixes (e.g., P4SMA82CAHE3_A). These qualified versions undergo extended reliability testing including temperature cycling, HTRB, and ESD - making them appropriate for automotive body electronics and infotainment systems. The P4SMA82CA-E3/5A itself is not AEC-Q101 certified.
What does the "CA" suffix indicate in P4SMA82CA-E3/5A?
The "CA" suffix in P4SMA82CA-E3/5A denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression in both polarities. Unlike unidirectional types marked with "A", the CA variant has no cathode band and functions identically regardless of voltage polarity - essential for protecting AC signals, differential buses, or floating power rails. This is confirmed in Vishay's official documentation for the P4SMA Series.
What is the standoff voltage (VWM) of P4SMA82CA-E3/5A and why does it matter?
The P4SMA82CA-E3/5A has a standoff voltage (VWM) of 70.1 V, representing the maximum continuous reverse voltage it can block without entering avalanche conduction. This parameter ensures the device remains non-conductive during normal operation while allowing sufficient margin below the 77.9–86.1 V breakdown range. Selecting a VWM correctly prevents false triggering and excessive leakage in 48 V or 60 V systems - a key design consideration for the P4SMA82CA-E3/5A.
Does P4SMA82CA-E3/5A require special PCB layout considerations?
Yes - Vishay specifies mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 400 W pulse power. Smaller pads increase thermal resistance and reduce surge capability. Additionally, short, low-inductance traces between the P4SMA82CA-E3/5A and protected node are critical to minimize voltage overshoot during fast transients. The DO-214AC footprint must follow IPC-7351B recommendations for solder joint reliability and thermal performance.
P4SMA82CA-E3/5A 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA82CA-E3/5A FAQ
1.How can I place an order for P4SMA82CA-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA82CA-E3/5A 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 P4SMA82CA-E3/5A reliable?
The price and inventory of P4SMA82CA-E3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA82CA-E3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA82CA-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA82CA-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA82CA-E3/5A?
P4SMA82CA-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA82CA-E3/5A 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 P4SMA82CA-E3/5A?
For technical support, including P4SMA82CA-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA82CA-E3/5A requirements.
6.How does Aetrix verify that P4SMA82CA-E3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA82CA-E3/5A 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 P4SMA82CA-E3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA82CA-E3/5A?
All P4SMA82CA-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA82CA-E3/5A, 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 P4SMA82CA-E3/5A part is unused and in its original packaging.
Return procedure for P4SMA82CA-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA82CA-E3/5A 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 …
