My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P4SMA56CA-E3/5A
- Part No.:
- P4SMA56CA-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA56CA-E3/5A.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,368
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4SMA56CA-E3/5A from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 56 V breakdown voltage (VBR = 53.2–58.8 V at IT = 1.0 mA), 77.0 V maximum clamping voltage (VC) at 5.2 A peak pulse current (IPPM), and 400 W peak pulse power (10/1000 μs waveform). It protects signal lines and power rails in automotive sensor interfaces and industrial control inputs against ESD and inductive switching transients.
For engineers reviewing the P4SMA56CA-E3/5A datasheet, P4SMA56CA-E3/5A pinout, P4SMA56CA-E3/5A application, or P4SMA56CA-E3/5A equivalent, this device delivers verified bidirectional clamping performance, AEC-Q101 qualification (via HE3/HM3 variants), RoHS-compliant matte tin terminations, and MSL Level 1 moisture sensitivity - critical for high-reliability automotive and industrial PCB assembly.
Technical Context
The P4SMA56CA-E3/5A operates as a symmetric bidirectional TVS, with identical electrical characteristics in both polarities: VWM = 47.8 V, VBR min/max = 53.2/58.8 V, and VC = 77.0 V at IPPM = 5.2 A under 10/1000 μs waveform. Its glass-passivated junction ensures stable avalanche behavior and low incremental surge resistance.
Designed for surface-mount automation, it uses DO-214AC (SMA) package with 0.208" × 0.157" footprint, 120 °C/W junction-to-ambient thermal resistance, and operates across -65 °C to +150 °C junction temperature range. It meets UL 94 V-0 flammability and JESD201 Class 2 whisker resistance standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 53.2 V / 58.8 V at IT = 1.0 mA - defines reliable avalanche onset window for consistent clamping threshold |
| VWM | 47.8 V - maximum continuous reverse working voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 77.0 V at 5.2 A (10/1000 μs) - clamped voltage seen by protected circuit during worst-case transient |
| PPPM | 400 W peak pulse power - sustains 10/1000 μs surges without degradation when mounted on 5.0 mm × 5.0 mm copper pads |
| IPPM | 5.2 A - peak transient current the device safely shunts while limiting voltage to ≤77.0 V |
| Junction Temp Range | -65 °C to +150 °C - supports operation in under-hood automotive and industrial environments |
| Package | SMA (DO-214AC) - industry-standard SMT outline with 2.54 mm lead pitch, compatible with standard reflow profiles |
Pinout & Package
SMA (DO-214AC) surface-mount package with two terminals: no polarity marking for bidirectional operation; symmetrical construction enables mounting without orientation constraints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction | Either terminal serves as anode or cathode depending on transient polarity - no DC bias dependency |
| Case / Body | Non-electrical mechanical interface | Plastic molding (UL 94 V-0) provides insulation and mechanical stability; no thermal or electrical connection to die |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both directions - eliminates need for polarity-aware layout in AC-coupled or floating signal paths |
| 400 W peak pulse rating | Handles IEC 61000-4-5 Level 4 surges (4 kV line-earth) when properly mounted - reduces need for cascaded protection stages |
| Glass-passivated junction | Stable avalanche characteristics over lifetime and temperature - prevents parameter drift in long-life industrial deployments |
| MSL Level 1, 260 °C peak | Compatible with standard lead-free reflow without baking - lowers manufacturing cost and avoids moisture-related popcorning |
| AEC-Q101 qualified variants | HE3/HM3 suffix options available - enables direct use in automotive powertrain and ADAS sensor modules requiring qualification evidence |
Applications
| Automotive Sensor Interface | Industrial PLC Input Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role: Bidirectional voltage clamp placed across differential signal pair or supply rail to divert transients before they reach sensitive IC inputs. Use Value: Limits induced voltage to ≤77.0 V during 5.2 A transients, preserving signal integrity and preventing latch-up in 5 V/12 V sensor ICs. |
Use Scenario: Shielding digital input channels of programmable logic controllers from field-side surges caused by relay coil de-energization or lightning-induced coupling. IC Role / Device Role: Primary transient suppressor on 24 V DC input lines, installed upstream of optocoupler or Schmitt-trigger input stage. Use Value: Clamps 400 W surges within 1 ns response time, enabling robust operation in factory-floor environments with frequent inductive switching noise. |
| Telecom Line Interface | Consumer Power Adapter Output |
|
Use Scenario: Safeguarding Ethernet PHY magnetics and PoE controller ICs against ESD (IEC 61000-4-2 ±8 kV contact) and fast transients on RJ45 ports. IC Role / Device Role: Secondary-level TVS placed after common-mode chokes but before transformer center-taps to suppress differential-mode surges. Use Value: Symmetric clamping ensures equal protection on all four twisted pairs without polarity matching, simplifying board routing. |
Use Scenario: Suppressing output overvoltage spikes in 5 V/12 V wall adapters caused by regulator loop instability or capacitor aging. IC Role / Device Role: Last-line defense across DC output terminals, absorbing energy from secondary-side rectifier reverse recovery overshoot. Use Value: 47.8 V stand-off voltage allows normal 12 V operation while triggering at 53.2 V - avoids nuisance tripping during ripple or load transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58CA | Higher VBR (55–61 V), same VC (93.6 V), larger SMB package (DO-214AA), 600 W PPPM | Requires larger PCB area; better suited for higher-energy surges where 400 W is marginal | Select SMBJ58CA when board space permits and system-level testing shows >400 W surge margin is needed. |
| 1.5SMC58CA | Same VBR/VC specs, but SMC (DO-214AB) package - 2.5× larger footprint than SMA, 1500 W PPPM | Used in legacy industrial designs with larger pad layouts; not suitable for dense automotive modules | Choose 1.5SMC58CA only if existing layout cannot accommodate SMA size and higher pulse power is required. |
Compared with SMBJ58CA and 1.5SMC58CA, the P4SMA56CA-E3/5A offers optimal balance of compact DO-214AC footprint, verified 400 W capability, and automotive-grade process control - making it preferred for space-constrained, high-volume automotive and industrial PCBs where MSL-1 reflow and AEC-Q101 traceability matter.
Availability
P4SMA56CA-E3/5A is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC input conditioning, and telecom line interface applications requiring stable component supply, full RoHS compliance, and traceable sourcing.
Supply support for P4SMA56CA-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, precision, and high-volume manufacturability.
The P4SMA Series targets cost-sensitive yet reliability-critical transient suppression needs in automotive, industrial, and consumer electronics - delivering standardized TVS performance in compact, automated-placement-ready packages.
FAQ
What is the clamping voltage of P4SMA56CA-E3/5A at its rated peak pulse current?
The P4SMA56CA-E3/5A has a maximum clamping voltage (VC) of 77.0 V at 5.2 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88367 and represents the upper limit of voltage imposed on the protected circuit during worst-case transient events. The P4SMA56CA-E3/5A maintains this clamping performance bidirectionally due to its symmetric junction design.
Is P4SMA56CA-E3/5A suitable for automotive applications?
Yes - while the P4SMA56CA-E3/5A itself carries commercial-grade E3 suffix, Vishay offers AEC-Q101-qualified versions under HE3 and HM3 suffixes (e.g., P4SMA56CAHE3_A). These variants undergo stress testing per AEC-Q101 and are approved for automotive powertrain, body electronics, and ADAS sensor modules. The P4SMA56CA-E3/5A shares identical electrical specs and DO-214AC packaging with those qualified parts.
What is the standoff voltage rating for P4SMA56CA-E3/5A?
The standoff voltage (VWM) for P4SMA56CA-E3/5A is 47.8 V - the maximum DC or continuous reverse operating voltage that can be applied without exceeding 1.0 μA leakage current. This value ensures safe operation across 48 V nominal systems with margin, and is confirmed in the Electrical Characteristics table of Vishay document 88367 for the "P4SMA56CA" entry.
Does P4SMA56CA-E3/5A have polarity markings on the package?
No - the P4SMA56CA-E3/5A is a bidirectional TVS diode and carries no polarity marking on its SMA (DO-214AC) package. Unlike unidirectional variants (e.g., P4SMA56A), it features symmetric internal construction, allowing either terminal to serve as anode or cathode depending on transient polarity. This eliminates orientation constraints during automated placement.
What is the thermal resistance of P4SMA56CA-E3/5A from junction to ambient?
The typical junction-to-ambient thermal resistance (RθJA) for P4SMA56CA-E3/5A is 120 °C/W when mounted on the minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in Vishay document 88367. This value assumes still air conditions and directly impacts power derating above 25 °C ambient - for example, at 85 °C ambient, the device's safe continuous power drops to ~1.8 W.
P4SMA56CA-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):
- 47.8V
- Voltage - Breakdown (Min):
- 53.2V
- Voltage - Clamping (Max) @ Ipp:
- 77V
- Current - Peak Pulse (10/1000µs):
- 5.2A
- 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)
P4SMA56CA-E3/5A FAQ
1.How can I place an order for P4SMA56CA-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA56CA-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 P4SMA56CA-E3/5A reliable?
The price and inventory of P4SMA56CA-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 P4SMA56CA-E3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA56CA-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA56CA-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA56CA-E3/5A?
P4SMA56CA-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA56CA-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 P4SMA56CA-E3/5A?
For technical support, including P4SMA56CA-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA56CA-E3/5A requirements.
6.How does Aetrix verify that P4SMA56CA-E3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA56CA-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 P4SMA56CA-E3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA56CA-E3/5A?
All P4SMA56CA-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA56CA-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 P4SMA56CA-E3/5A part is unused and in its original packaging.
Return procedure for P4SMA56CA-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA56CA-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 …
