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Vishay General Semiconductor - Diodes Division P4SMA7.5CAHE3/5A
- Part No.:
- P4SMA7.5CAHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA7.5CAHE3/5A.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,432
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Product details
Overview
P4SMA7.5CAHE3/5A 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, 400 W peak pulse power (10/1000 µs), and AEC-Q101 qualification for automotive applications.
For engineers reviewing the P4SMA7.5CAHE3/5A datasheet, P4SMA7.5CAHE3/5A pinout, P4SMA7.5CAHE3/5A application, or P4SMA7.5CAHE3/5A equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM ≈ 1.77), MSL Level 1 moisture sensitivity, matte tin-plated leads compliant with J-STD-002, and suitability for I/O protection in harsh environments.
Technical Context
The P4SMA7.5CAHE3/5A operates as a bidirectional avalanche diode, symmetrically clamping transient voltages above ±7.13 V in either polarity while maintaining ≤6.40 V reverse standoff. Its glass-passivated junction enables fast response (<1 ns) and low incremental surge resistance, critical for protecting sensitive inputs against ESD and inductive switching spikes.
Thermally, it exhibits RθJA = 120 °C/W and RθJL = 30 °C/W, with rated junction temperature up to +150 °C and storage range from –65 °C to +150 °C. The device is rated for 400 W peak pulse power (10/1000 µs waveform) at TA = 25 °C, derating linearly above 25 °C per Figure 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 7.13 V min to 7.88 V max at 10 mA test current - defines precise clamping onset threshold in both directions |
| Standoff Voltage (VWM) | 6.40 V max - ensures no conduction during normal 5 V or 3.3 V rail operation with margin |
| Clamping Voltage (VC) | 11.3 V at 35.4 A IPPM - limits transient voltage seen by protected IC to safe level under 400 W surge |
| Peak Pulse Power (PPPM) | 400 W (10/1000 µs) - sustains high-energy transients common in automotive load-dump or inductive kick events |
| Operating Temperature | –65 °C to +150 °C - supports under-hood automotive and industrial ambient conditions without derating loss |
| Qualification | AEC-Q101 qualified - validated for automotive reliability including temperature cycling, HTRB, and ESD robustness |
| Package | SMA (DO-214AC) - surface-mount footprint compatible with automated assembly and meets UL 94 V-0 flammability |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads; dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H); polarity: unmarked for bidirectional devices; mounting pad layout per Vishay recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (negative polarity) | Conducts during negative-going surges; connects to line being protected |
| Cathode | Transient current entry point (positive polarity) | Conducts during positive-going surges; connects to line being protected |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 400 W peak pulse rating | Handles high-energy transients from relay coil de-energization or motor commutation in automotive ECUs |
| AEC-Q101 qualification | Validates long-term reliability for automotive infotainment, body control, and ADAS sensor interfaces |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without pre-baking, reducing manufacturing complexity |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage (<500 µA at VWM) over lifetime and temperature |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Line Protection |
|---|---|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) in engine control modules from load-dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential sensor pair or between signal and ground to clamp ±100 V transients. Use Value: Prevents latch-up or damage to 12-bit ADC front-end stages while maintaining <1 pF junction capacitance for signal integrity. |
Use Scenario: Safeguarding CAN_H/CAN_L lines in vehicle network gateways against ESD and coupled noise from nearby high-current circuits. IC Role / Device Role / Timing Role: Low-capacitance bidirectional suppressor installed at connector entry point to shunt transients before transceiver input. Use Value: Maintains CAN FD bit-rate integrity up to 5 Mbps by limiting clamping overshoot to ≤11.3 V without distorting edge timing. |
| Consumer USB Port ESD Protection | Telecom DSL Line Surge Suppression |
Use Scenario: Shielding USB 2.0 D+/D− lines in set-top boxes and smart displays from human-body-model (HBM) ESD events. IC Role / Device Role / Timing Role: Surface-mount TVS placed directly at USB connector pins to absorb 8 kV contact discharge per IEC 61000-4-2. Use Value: Achieves <500 µA leakage at 5.5 V, preserving bus termination and enabling full-speed enumeration without false disconnects. |
Use Scenario: Protecting ADSL/VDSL line drivers and receivers from lightning-induced surges on twisted-pair telephone lines. IC Role / Device Role / Timing Role: Bidirectional suppressor mounted across line pair (tip/ring) to clamp common-mode transients up to 400 W. Use Value: Withstands repetitive 10/1000 µs surges per ITU-T K.20/21, extending modem MTBF in rural installations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0CA | 600 W PPPM, SMB package (larger footprint), VC = 11.2 V at 53.3 A | Higher surge capacity but requires larger PCB area; better for 12 V rail protection | Select when higher energy handling is needed and board space permits SMB footprint |
| 1.5KE7.5CA | 1500 W PPPM, DO-201 package (through-hole), VC = 12.0 V at 125 A | Through-hole mounting only; suited for primary-level AC/DC input protection | Choose for legacy through-hole designs or where >400 W surge immunity is mandatory |
Compared with SMBJ7.0CA and 1.5KE7.5CA, the P4SMA7.5CAHE3/5A offers optimal balance of compact SMA size, AEC-Q101 qualification, and precise 6.4 V standoff-making it preferred for space-constrained automotive signal-line protection where MSL-1 reflow compatibility and automotive-grade reliability are required.
Availability
P4SMA7.5CAHE3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN networks, consumer USB ports, and telecom DSL line protection requiring stable component supply, AEC-Q101 compliance, and surface-mount manufacturability.
Supply support for P4SMA7.5CAHE3/5A 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA7.5CAHE3/5A belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, low-leakage transient suppression in automotive, industrial, and communications systems where precision clamping and long-term stability are critical.
FAQ
What is the clamping voltage of P4SMA7.5CAHE3/5A at its rated peak pulse current?
The P4SMA7.5CAHE3/5A has a maximum clamping voltage (VC) of 11.3 V at 35.4 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per Figure 1 and Table on page 2 of Vishay document 88367, confirming consistent bidirectional clamping performance essential for protecting 5 V logic interfaces.
Is P4SMA7.5CAHE3/5A suitable for automotive applications?
Yes, P4SMA7.5CAHE3/5A is AEC-Q101 qualified, as explicitly stated in the "FEATURES" section and ordering information of Vishay document 88367. The "HE3" suffix denotes RoHS-compliant and AEC-Q101 qualified construction, making P4SMA7.5CAHE3/5A appropriate for under-hood and cabin electronics including sensor signal conditioning and infotainment I/O protection.
What does the "CA" suffix indicate in P4SMA7.5CAHE3/5A?
The "CA" suffix in P4SMA7.5CAHE3/5A designates a bidirectional configuration, meaning the device provides symmetrical transient suppression in both polarities. As confirmed in the "DEVICES FOR BIDIRECTION APPLICATIONS" section of the datasheet, electrical characteristics-including VBR, VWM, and VC-apply identically in either direction, eliminating need for polarity-aware placement.
What is the standoff voltage rating of P4SMA7.5CAHE3/5A?
The maximum standoff voltage (VWM) of P4SMA7.5CAHE3/5A is 6.40 V at 25 °C, ensuring reliable non-conduction during normal operation of 5 V or 3.3 V systems. This value is specified in the Electrical Characteristics table on page 2 of Vishay document 88367 and guarantees ≥0.6 V margin below typical 7 V minimum breakdown voltage.
Does P4SMA7.5CAHE3/5A meet moisture sensitivity requirements for lead-free reflow?
Yes, P4SMA7.5CAHE3/5A meets MSL Level 1 per J-STD-020, with a maximum lead-free reflow peak temperature of 260 °C. This is documented in the "FEATURES" section of Vishay document 88367 and verified in the "MECHANICAL DATA" block, allowing direct placement into standard Pb-free SMT processes without baking or special handling.
P4SMA7.5CAHE3/5A 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:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA7.5CAHE3/5A FAQ
1.How can I place an order for P4SMA7.5CAHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA7.5CAHE3/5A 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 P4SMA7.5CAHE3/5A reliable?
The price and inventory of P4SMA7.5CAHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA7.5CAHE3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA7.5CAHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA7.5CAHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA7.5CAHE3/5A?
P4SMA7.5CAHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA7.5CAHE3/5A 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 P4SMA7.5CAHE3/5A?
For technical support, including P4SMA7.5CAHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA7.5CAHE3/5A requirements.
6.How does Aetrix verify that P4SMA7.5CAHE3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA7.5CAHE3/5A 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 P4SMA7.5CAHE3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA7.5CAHE3/5A?
All P4SMA7.5CAHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA7.5CAHE3/5A, 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 P4SMA7.5CAHE3/5A part is unused and in its original packaging.
Return procedure for P4SMA7.5CAHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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