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Vishay General Semiconductor - Diodes Division P4SMA7.5CA-E3/5A
- Part No.:
- P4SMA7.5CA-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA7.5CA-E3/5A.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,716
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Product details
Overview
P4SMA7.5CA-E3/5A 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 7.13 V minimum breakdown voltage (VBR), 6.40 V maximum standoff voltage (VWM), 11.3 V clamping voltage (VC) at 35.4 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - used in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the P4SMA7.5CA-E3/5A datasheet, P4SMA7.5CA-E3/5A pinout, P4SMA7.5CA-E3/5A application, or P4SMA7.5CA-E3/5A equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM = 1.77), AEC-Q101 qualification eligibility (via HE3/HM3 variants), and compatibility with automated SMT assembly on standard 0.2" × 0.2" copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping performance in forward and reverse directions per JESD22-A114 test conditions. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<500 µA at VWM), while MSL Level 1 moisture sensitivity supports lead-free reflow up to 260 °C peak.
The device uses a planar silicon junction structure optimized for fast response (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD (IEC 61000-4-2) and lightning-induced surges (IEC 61000-4-5). Thermal resistance is characterized at RθJA = 120 °C/W (free air) and RθJL = 30 °C/W (junction-to-lead), with maximum operating junction temperature of +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff) | 6.40 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown, min) | 7.13 V at 10 mA - Guaranteed conduction onset under standardized DC test; ensures predictable turn-on during transients |
| VC (Clamping, max) | 11.3 V at 35.4 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; determines downstream component stress |
| PPPM | 400 W - Surge energy handling capacity under standard 10/1000 µs waveform; enables robust protection against inductive switching spikes |
| IPPM | 35.4 A - Corresponding peak pulse current at VC; defines minimum trace/solder joint current-carrying requirement |
| TJ max | +150 °C - Maximum junction temperature limit; constrains thermal design when operating near PD = 3.3 W steady-state dissipation |
| Package | SMA (DO-214AC) - Standardized surface-mount outline with 2.54 mm lead pitch; compatible with IPC-7351B footprint and J-STD-002 solderability |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, polarity-unmarked for bidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (either polarity) | Acts as cathode during positive transient; no marking required due to symmetrical bidirectional construction |
| Cathode | Transient current exit point (either polarity) | Acts as anode during negative transient; terminals are functionally interchangeable in PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM performance in both directions - eliminates polarity-aware routing on differential or AC-coupled lines |
| 400 W peak pulse power | Rated per 10/1000 µs waveform with 0.01% duty cycle - sustains repeated surge events without degradation in telecom or industrial control environments |
| Low clamping ratio | VC/VWM = 1.77 - minimizes overvoltage stress on downstream ICs compared to higher-ratio suppressors |
| AEC-Q101 qualification path | Available via HE3/HM3 suffix variants - supports automotive-grade deployment in body electronics and ADAS sensor interfaces |
| MSL Level 1 | Reflow-compatible up to 260 °C peak - enables single-pass lead-free assembly without baking or special handling |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., temperature, pressure) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt transients before reaching PHY layer. Use Value: Prevents latch-up or gate oxide damage in 5 V-tolerant microcontrollers and analog front-ends by limiting excursion to ≤11.3 V during 35.4 A surges. |
Use Scenario: Safeguarding PLC digital input modules and RS-485 transceivers against field-wiring induced surges in factory automation systems. IC Role / Device Role / Timing Role: Primary line-level transient suppressor mounted adjacent to terminal block or connector, operating in parallel with system ground. Use Value: Maintains functional integrity during 1 kV/500 A lightning-simulated surges (per IEC 61000-4-5) without requiring additional series impedance or timing delays. |
| Consumer USB Port Protection | Telecom Line Card Protection |
|
Use Scenario: Shielding USB 2.0 data lines (D+/D−) and VBUS from ESD events in portable docking stations and hub controllers. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp integrated into high-speed signal path with minimal trace length. Use Value: Limits ESD-induced voltage overshoot to <12 V while adding <0.5 pF parasitic capacitance - preserves signal integrity up to 480 Mbps. |
Use Scenario: Front-end surge protection for DSL/ADSL line interface units (LIUs) exposed to tip-ring transients on telephone exchange equipment. IC Role / Device Role / Timing Role: First-stage protector on line side of transformer, coordinated with gas discharge tube (GDT) secondary stage. Use Value: Clamps 10/1000 µs surges to ≤11.3 V within <1 ns, enabling GDT to handle bulk energy while preserving semiconductor reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0CA | Higher VWM (6.0 V), lower VC (11.2 V), same 400 W rating but in larger SMB (DO-214AA) package | Requires larger PCB footprint; better suited for higher-current traces where thermal mass improves surge endurance | Select when board space allows larger package and tighter clamping tolerance is prioritized over size-constrained layouts |
| 1.5KE7.5CA | Through-hole TO-218 package, 1500 W rating, higher VC (12.9 V), same VWM/VBR range | Designed for chassis-level primary protection; not suitable for dense SMT assemblies or high-frequency signal lines | Choose for legacy through-hole designs or where higher energy absorption justifies manual assembly and larger footprint |
Compared with SMBJ7.0CA and 1.5KE7.5CA, P4SMA7.5CA-E3/5A offers optimal balance of compact SMA footprint, precise 6.40 V standoff, and 11.3 V clamping - making it preferred for space-constrained, high-density SMT applications like automotive ECUs and industrial edge nodes where automated placement and thermal management are critical.
Availability
P4SMA7.5CA-E3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial I/O protection, consumer USB port hardening, and telecom line card surge suppression requiring stable component supply and RoHS-compliant sourcing.
Supply support for P4SMA7.5CA-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, automotive qualification, and high-volume manufacturability.
The P4SMA Series is engineered for cost-effective, high-reliability transient suppression in surface-mount applications - targeting automotive, industrial, and communications systems where consistent clamping performance and AEC-Q101 readiness are essential.
FAQ
What is the polarity configuration of P4SMA7.5CA-E3/5A?
P4SMA7.5CA-E3/5A is a bidirectional TVS diode with symmetrical electrical characteristics in both directions. It has no polarity marking on the SMA (DO-214AC) package, and either terminal may serve as anode or cathode depending on transient polarity - eliminating orientation constraints during automated placement and simplifying PCB layout for AC or differential signal lines.
Does P4SMA7.5CA-E3/5A meet automotive qualification standards?
P4SMA7.5CA-E3/5A itself is RoHS-compliant and commercial-grade; however, Vishay offers AEC-Q101 qualified versions under HE3 and HM3 suffixes (e.g., P4SMA7.5CAHE3_A). These variants undergo full stress testing per AEC-Q101 Rev D and are intended for automotive applications such as body control modules and sensor interfaces where reliability under temperature cycling and vibration is mandatory.
What is the maximum clamping voltage of P4SMA7.5CA-E3/5A under surge conditions?
The maximum clamping voltage (VC) of P4SMA7.5CA-E3/5A is 11.3 V, measured at 35.4 A peak pulse current using the standard 10/1000 µs waveform. This value represents the highest voltage imposed on the protected circuit during worst-case transient events and is critical for ensuring downstream components remain within their absolute maximum ratings.
How does the 400 W peak pulse power rating of P4SMA7.5CA-E3/5A relate to real-world surge immunity?
The 400 W rating for P4SMA7.5CA-E3/5A applies to non-repetitive 10/1000 µs surges at 0.01% duty cycle. In practice, this enables reliable suppression of common threats including IEC 61000-4-4 EFT bursts (up to 4 kV) and ISO 7637-2 load dump pulses (up to 120 V/100 ms), provided the device is mounted on recommended 0.2" × 0.2" copper pads for thermal dissipation.
Can P4SMA7.5CA-E3/5A be used in place of unidirectional TVS diodes like P4SMA7.5A?
No - P4SMA7.5CA-E3/5A is strictly bidirectional and must not replace unidirectional types such as P4SMA7.5A in DC-biased circuits. Unidirectional devices conduct only in reverse bias and block forward current, whereas P4SMA7.5CA-E3/5A conducts symmetrically. Substitution would cause unintended conduction paths and potential system malfunction in power rail or single-polarity signal protection schemes.
P4SMA7.5CA-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):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 35.4A
- 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)
P4SMA7.5CA-E3/5A FAQ
1.How can I place an order for P4SMA7.5CA-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA7.5CA-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 P4SMA7.5CA-E3/5A reliable?
The price and inventory of P4SMA7.5CA-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 P4SMA7.5CA-E3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA7.5CA-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA7.5CA-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA7.5CA-E3/5A?
P4SMA7.5CA-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA7.5CA-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 P4SMA7.5CA-E3/5A?
For technical support, including P4SMA7.5CA-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA7.5CA-E3/5A requirements.
6.How does Aetrix verify that P4SMA7.5CA-E3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA7.5CA-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 P4SMA7.5CA-E3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA7.5CA-E3/5A?
All P4SMA7.5CA-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA7.5CA-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 P4SMA7.5CA-E3/5A part is unused and in its original packaging.
Return procedure for P4SMA7.5CA-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA7.5CA-E3/5A Tags
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