My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P4SMA75CAHE3_A/I
- Part No.:
- P4SMA75CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA75CAHE3_A/I.pdf
- Description:
- TVS DIODE 64.1VWM 104VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,974
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4SMA75CAHE3_A/I 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 71.3 V minimum breakdown voltage (VBR), 64.1 V maximum standoff voltage (VWM), 104 V clamping voltage (VC) at 3.9 A peak pulse current (IPPM), and 400 W peak pulse power (10/1000 µs waveform), targeting protection of MOSFETs, ICs, and sensor interfaces in automotive and industrial systems.
For engineers reviewing the P4SMA75CAHE3_A/I datasheet, P4SMA75CAHE3_A/I pinout, P4SMA75CAHE3_A/I application, or P4SMA75CAHE3_A/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 120 °C/W), bidirectional clamping behavior, and RoHS-compliant lead finish - all critical for ESD/surge design validation and BOM selection.
Technical Context
The P4SMA75CAHE3_A/I operates as a bidirectional avalanche diode, symmetrically clamping transient voltages above ±71.3 V in either polarity without polarity marking. Its glass-passivated junction enables fast response (<1 ns) and low incremental surge resistance, supporting repetitive 0.01% duty-cycle surges per JEDEC standards.
Rated for 150 °C maximum junction temperature and qualified to AEC-Q101, it delivers stable clamping performance across automotive temperature ranges. The device is mounted on 0.2" × 0.2" copper pads and meets MSL Level 1 (260 °C reflow peak), making it suitable for high-reliability automated SMT assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff) | 64.1 V - Maximum continuous reverse voltage before conduction begins; defines safe operating margin below clamping threshold |
| VBR (Breakdown) | 71.3–78.8 V @ 1 mA - Minimum/maximum voltage at which avalanche conduction initiates; ensures predictable turn-on across production lot |
| VC (Clamping) | 104 V @ 3.9 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; determines downstream component stress |
| PPPM | 400 W - Peak transient energy absorption capability; sufficient for IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge testing |
| IPPM | 3.9 A - Peak current handled at VC; used with PCB trace impedance to estimate voltage overshoot at device location |
| RθJA | 120 °C/W - Junction-to-ambient thermal resistance; informs derating requirements when ambient exceeds 25 °C |
| TJ max | 150 °C - Maximum allowable junction temperature; supports operation in under-hood automotive environments |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H); matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | One terminal of symmetrical avalanche junction; conducts during negative transients relative to cathode reference |
| Cathode | Transient current entry (positive polarity) | Other terminal of symmetrical avalanche junction; conducts during positive transients; no band marking for bidirectional types |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per stress test plan |
| 400 W peak pulse power (10/1000 µs) | Enables single-device protection against IEC 61000-4-5 surges up to 1 kV open-circuit / 0.5 kA short-circuit |
| Glass passivated junction | Ensures stable leakage (<1 µA at VWM) and repeatable VBR over lifetime and temperature |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without preconditioning or baking |
| RoHS-compliant & halogen-free option | P4SMA75CAHE3_A/I uses matte tin plating and UL 94 V-0 molding compound, meeting automotive environmental mandates |
Applications
| Automotive Sensor Interface Protection | Industrial PLC I/O Module Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in engine control units. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt transients before reaching signal conditioning ICs. Use Value: Limits induced voltage to ≤104 V during 3.9 A surges, preserving integrity of 5 V/12 V logic interfaces and preventing latch-up in downstream op-amps or ADCs. |
Use Scenario: Safeguarding 24 V DC digital input channels in programmable logic controllers exposed to relay coil flyback and field wiring ESD. IC Role / Device Role / Timing Role: Primary surge suppression device across input terminals, coordinated with series impedance to meet IEC 61000-4-4 (EFT) and -4-5 (surge) immunity requirements. Use Value: Absorbs 400 W transient energy without degradation, enabling >100,000 surge cycles while maintaining VWM stability for long-term system uptime. |
| Telecom Power Rail Clamping | Consumer Device USB Port ESD Protection |
Use Scenario: Clamping 48 V telecom power supply rails against lightning-induced surges entering via Ethernet or PoE interfaces. IC Role / Device Role / Timing Role: Secondary-level TVS placed after primary MOVs to handle fast-rising residual transients and provide precise voltage limiting. Use Value: Clamps to 104 V within <1 ns, preventing overvoltage damage to DC-DC converters rated for 60 V input, while sustaining 150 °C junction temperature. |
Use Scenario: Protecting USB 2.0 data lines and VBUS pins in set-top boxes and smart displays from human-body-model (HBM) ESD events. IC Role / Device Role / Timing Role: Low-capacitance bidirectional suppressor (CJ ≈ 100 pF typical at VWM) placed adjacent to connector to minimize signal distortion. Use Value: Delivers 15 kV air-gap ESD immunity per IEC 61000-4-2 while adding <0.5 pF parasitic capacitance to differential pairs, preserving signal integrity at 480 Mbps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75CA | Higher 600 W PPPM, larger SMB (DO-214AA) package, RθJA = 85 °C/W | Better thermal performance and surge margin; requires larger PCB footprint and different pad layout | Select when higher surge endurance (>3.9 A) or lower thermal resistance is required; not drop-in due to package size difference |
| 1.5KE75CA | Through-hole DO-15 package, 1500 W PPPM, higher VC = 121 V, slower response | Designed for board-edge or chassis-level protection; incompatible with SMT-only assembly | Choose for legacy through-hole designs or where mechanical robustness outweighs board space constraints; not pin-compatible |
Compared with P4SMA75CAHE3_A/I, SMBJ75CA offers superior thermal dissipation and surge headroom but demands PCB redesign, while 1.5KE75CA provides higher power rating at the cost of SMT incompatibility and reduced speed - making P4SMA75CAHE3_A/I optimal for space-constrained, AEC-Q101–compliant SMT applications requiring balanced performance and manufacturability.
Availability
P4SMA75CAHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O protection, and telecom power rail clamping requiring stable component supply, AEC-Q101 qualification, and RoHS/halogen-free compliance.
Supply support for P4SMA75CAHE3_A/I 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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series was developed for high-volume, surface-mount transient suppression in automotive, industrial, and communications equipment - prioritizing AEC-Q101 qualification, tight parameter distribution, and compatibility with automated assembly processes.
FAQ
What is the clamping voltage of P4SMA75CAHE3_A/I at its rated peak pulse current?
The P4SMA75CAHE3_A/I has a maximum clamping voltage (VC) of 104 V at 3.9 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88367 and defines the upper voltage limit imposed on protected circuits during surge events. Designers use this parameter to verify that downstream components remain within their absolute maximum ratings during transient conditions. The P4SMA75CAHE3_A/I maintains this clamping performance across its full operating temperature range.
Is P4SMA75CAHE3_A/I qualified for automotive applications?
Yes, P4SMA75CAHE3_A/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation revision 09-Jan-2024 (Document Number: 88367). This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD robustness, validating suitability for under-hood and cabin electronics. The device operates from –65 °C to +150 °C and meets MSL Level 1 for lead-free reflow, making P4SMA75CAHE3_A/I appropriate for automotive sensor interfaces, body control modules, and infotainment power rails.
What does the "CA" suffix indicate in P4SMA75CAHE3_A/I?
The "CA" suffix in P4SMA75CAHE3_A/I denotes a bidirectional configuration, meaning the device functions identically for both positive and negative voltage transients - unlike unidirectional variants (e.g., P4SMA75A) that conduct only in one polarity. Bidirectional operation eliminates the need for polarity-aware placement on PCBs and simplifies layout for AC-coupled or differential signal lines. Electrical characteristics including VBR, VWM, and VC apply symmetrically in both directions, as specified in the "DEVICES FOR BIDIRECTION APPLICATIONS" section of Vishay's datasheet.
What is the thermal resistance of P4SMA75CAHE3_A/I, and how does it affect layout?
P4SMA75CAHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as defined in Vishay document 88367. This value assumes minimal copper area; increasing pad size or adding thermal vias reduces RθJA and improves power handling during repetitive surges. Layout must follow the recommended mounting pad dimensions in the package outline drawing to ensure reliable solder joints and avoid thermal overstress during surge events. Derating curves in Figure 2 show power reduction above 25 °C ambient.
How does the P4SMA75CAHE3_A/I differ from the P4SMA75A variant?
The P4SMA75CAHE3_A/I is bidirectional with symmetrical clamping for both polarities and no cathode band marking, whereas P4SMA75A is unidirectional, features a cathode band, and conducts only during positive transients. Electrically, P4SMA75CAHE3_A/I has identical VBR (71.3–78.8 V), VWM (64.1 V), and VC (104 V) ratings but supports reverse conduction - critical for protecting AC signals or floating references. Both share AEC-Q101 qualification and SMA packaging, but P4SMA75CAHE3_A/I's bidirectional nature makes it preferred for CAN, LIN, RS-485, and other differential or alternating-voltage applications.
P4SMA75CAHE3_A/I 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):
- 64.1V
- Voltage - Breakdown (Min):
- 71.3V
- Voltage - Clamping (Max) @ Ipp:
- 104V
- Current - Peak Pulse (10/1000µs):
- 3.9A
- 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)
P4SMA75CAHE3_A/I FAQ
1.How can I place an order for P4SMA75CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA75CAHE3_A/I 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 P4SMA75CAHE3_A/I reliable?
The price and inventory of P4SMA75CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA75CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for P4SMA75CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA75CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA75CAHE3_A/I?
P4SMA75CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA75CAHE3_A/I 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 P4SMA75CAHE3_A/I?
For technical support, including P4SMA75CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA75CAHE3_A/I requirements.
6.How does Aetrix verify that P4SMA75CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P4SMA75CAHE3_A/I 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 P4SMA75CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of P4SMA75CAHE3_A/I?
All P4SMA75CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA75CAHE3_A/I, 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 P4SMA75CAHE3_A/I part is unused and in its original packaging.
Return procedure for P4SMA75CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA75CAHE3_A/I 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 …
