My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P4SMA7.5CA-E3/61
- Part No.:
- P4SMA7.5CA-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA7.5CA-E3/61.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,466
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4SMA7.5CA-E3/61 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 7.13 V minimum breakdown voltage (VBR), 6.40 V standoff voltage (VWM), 11.3 V maximum 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-E3/61 datasheet, P4SMA7.5CA-E3/61 pinout, P4SMA7.5CA-E3/61 application, or P4SMA7.5CA-E3/61 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM = 1.77), AEC-Q101 qualification eligibility (via HE3 suffix 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 VBR tolerance (±5% typical) and low leakage (<500 µA at VWM), while MSL Level 1 rating supports lead-free reflow up to 260 °C peak.
The device exhibits fast response time (<1 ns), low incremental surge resistance, and thermal resistance of 120 °C/W (junction-to-ambient) when mounted on recommended pad layout. Derating above 25 °C ambient follows Fig. 2, maintaining 400 W pulse capability only up to TA ≈ 50 °C before transitioning to 300 W rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff) | 6.40 V - Maximum continuous reverse working voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown, min) | 7.13 V at 10 mA - Minimum voltage at which device enters avalanche conduction; ensures reliable triggering under transient stress |
| VC (Clamping, max) | 11.3 V at 35.4 A - Maximum voltage seen by protected circuit during 10/1000 µs surge; determines downstream IC survivability |
| PPPM | 400 W - Peak pulse power handling with 10/1000 µs waveform; enables protection against IEC 61000-4-5 Level 3 surges (1 kV/42 Ω) |
| IPPM | 35.4 A - Corresponding peak pulse current at VC; defines minimum trace width and PCB layout current-carrying capacity |
| TJ max | +150 °C - Maximum junction temperature; sets thermal design limits for sustained surge repetition or high ambient environments |
| Package | SMA (DO-214AC) - Standardized surface-mount outline with 5.0 mm × 5.0 mm copper pad requirement; compatible with J-STD-020 MSL Level 1 |
Pinout & Package
SMA (DO-214AC) package: molded plastic body with matte tin-plated leads, no polarity marking for bidirectional configuration; cathode/anode terminals are functionally symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive polarity) | One terminal of symmetrical avalanche junction; connects to line under protection without polarity constraint |
| Cathode | Transient current entry (negative polarity) | Second terminal of symmetrical avalanche junction; completes bidirectional clamping path to ground or rail |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both directions - eliminates polarity concerns in AC-coupled or floating signal lines |
| 400 W peak pulse power | Supports IEC 61000-4-5 surge immunity up to 1 kV open-circuit / 42 Ω source impedance without derating below 50 °C ambient |
| Low clamping ratio (VC/VWM) | 1.77 - Minimizes overvoltage stress on downstream logic or analog inputs during transient events |
| AEC-Q101 qualified option | Available as P4SMA7.5CAHE3_A - validated for automotive under-hood and infotainment applications per stress test requirements |
| MSL Level 1 moisture sensitivity | Enables single-pass lead-free reflow at 260 °C peak without baking - reduces manufacturing cost and process complexity |
Applications
| Automotive Sensor Interface | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ESD in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and chassis ground, responding within <1 ns to transients exceeding VWM. Use Value: Limits induced voltage to ≤11.3 V during 35.4 A surges, preserving integrity of 5 V or 3.3 V microcontroller inputs and ADC front-ends. |
Use Scenario: Shielding digital input modules from inductive kickback generated by solenoid valves and relay coils in factory automation cabinets. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing energy from 10/1000 µs transients on 24 V DC control lines before reaching FPGA or optocoupler inputs. Use Value: Withstands repetitive 400 W pulses at 0.01% duty cycle, enabling robust operation in high-noise industrial environments without degradation. |
| Consumer USB Port ESD Protection | Telecom Line Card Surge Suppression |
Use Scenario: Safeguarding USB 2.0 D+/D− lines against human-body-model (HBM) ESD events up to ±15 kV in portable electronics. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp (CJ ≈ 100 pF at VWM) placed adjacent to connector to minimize signal distortion. Use Value: Clamps ESD-induced voltage to <12 V within nanoseconds, preventing latch-up or gate oxide damage in USB PHY ICs. |
Use Scenario: Front-end protection for Ethernet PHYs and DSL line drivers exposed to lightning-induced surges on twisted-pair telecom lines. IC Role / Device Role / Timing Role: Primary surge suppression stage before secondary protection (e.g., GDT + MOV), handling initial 10/1000 µs energy burst. Use Value: Delivers 400 W pulse handling with 11.3 V clamping, reducing stress on downstream protection components and extending system MTBF. |
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 (7.0 V), lower VC (11.2 V), same 400 W rating but in larger SMB (DO-214AA) package | Better margin for 7 V nominal rails; requires larger PCB footprint and higher thermal mass for equivalent cooling | Select when board space allows larger package and tighter clamping voltage is prioritized over size |
| 1.5SMC7.0CA | Same VWM/VBR range, 1500 W peak power, DO-214AB package - significantly higher surge capacity but larger and higher capacitance | Suitable for primary-level telecom or AC mains protection where 400 W is insufficient | Choose only when system-level surge testing exceeds IEC 61000-4-5 Level 4; not drop-in due to size and layout change |
Compared with P4SMA7.5CA-E3/61, SMBJ7.0CA offers slightly tighter clamping but demands more PCB area, while 1.5SMC7.0CA provides triple the pulse power at the cost of size and parasitic capacitance - making P4SMA7.5CA-E3/61 optimal for space-constrained, medium-surge industrial and automotive signal-line protection.
Availability
P4SMA7.5CA-E3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer USB port protection, and telecom line card surge suppression requiring stable component supply, RoHS-compliant commercial-grade TVS diodes with verified bidirectional clamping performance.
Supply support for P4SMA7.5CA-E3/61 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, automotive qualification, and high-volume manufacturability.
The P4SMA Series targets cost-sensitive, high-reliability transient suppression in automotive, industrial, and consumer electronics - engineered for automated SMT assembly, AEC-Q101 readiness, and consistent clamping performance across temperature and life cycle.
FAQ
What is the clamping voltage of P4SMA7.5CA-E3/61 at its rated peak pulse current?
The P4SMA7.5CA-E3/61 has a maximum clamping voltage (VC) of 11.3 V at 35.4 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per JEDEC standards and reflects worst-case voltage seen by protected circuitry during surge events. The clamping voltage remains stable across temperature due to the device's low temperature coefficient of VBR (0.061 %/°C).
Is P4SMA7.5CA-E3/61 suitable for automotive applications?
P4SMA7.5CA-E3/61 itself is a commercial-grade part, but Vishay offers AEC-Q101-qualified versions under the P4SMA7.5CAHE3_A ordering code. While P4SMA7.5CA-E3/61 shares identical electrical characteristics and construction, full automotive qualification requires the HE3 suffix variant, which undergoes extended stress testing per AEC-Q101. For non-safety-critical automotive subsystems, P4SMA7.5CA-E3/61 may be used with customer validation.
How does the bidirectional nature of P4SMA7.5CA-E3/61 affect PCB layout?
The bidirectional design of P4SMA7.5CA-E3/61 eliminates polarity marking - no cathode band or orientation dependency exists. Layout requires symmetric placement between protected line and reference plane (e.g., ground or VCC), with equal-length traces to both terminals. The SMA package must be mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to sustain 400 W pulse power without thermal runaway.
What is the maximum steady-state power dissipation of P4SMA7.5CA-E3/61?
P4SMA7.5CA-E3/61 has a maximum steady-state power dissipation (PD) of 3.3 W at 50 °C ambient temperature on an infinite heatsink. In typical PCB conditions, derating applies: at 70 °C ambient, usable power drops to ~2.2 W. This rating governs continuous leakage current handling and thermal management in high-temperature enclosures, distinct from its 400 W transient capability.
Does P4SMA7.5CA-E3/61 meet any industry surge immunity standards?
P4SMA7.5CA-E3/61 supports compliance with IEC 61000-4-5 (surge immunity) Level 3 (1 kV line-to-earth, 42 Ω source impedance) and IEC 61000-4-2 (ESD) Level 4 (±15 kV air, ±8 kV contact) when implemented with proper PCB layout - including short trace lengths, low-inductance grounding, and adequate copper pour. Its 400 W pulse rating and 11.3 V clamping directly enable these test margins.
P4SMA7.5CA-E3/61 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-E3/61 FAQ
1.How can I place an order for P4SMA7.5CA-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA7.5CA-E3/61 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-E3/61 reliable?
The price and inventory of P4SMA7.5CA-E3/61 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-E3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA7.5CA-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA7.5CA-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA7.5CA-E3/61?
P4SMA7.5CA-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA7.5CA-E3/61 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-E3/61?
For technical support, including P4SMA7.5CA-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA7.5CA-E3/61 requirements.
6.How does Aetrix verify that P4SMA7.5CA-E3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA7.5CA-E3/61 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-E3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA7.5CA-E3/61?
All P4SMA7.5CA-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA7.5CA-E3/61, 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-E3/61 part is unused and in its original packaging.
Return procedure for P4SMA7.5CA-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA7.5CA-E3/61 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 …
