My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P4SMA7.5AHE3/5A
- Part No.:
- P4SMA7.5AHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA7.5AHE3/5A.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,367
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4SMA7.5AHE3/5A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features 7.13 V to 7.88 V breakdown voltage (VBR) at 10 mA, 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 to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial electronics.
For engineers reviewing the P4SMA7.5AHE3/5A datasheet, P4SMA7.5AHE3/5A pinout, P4SMA7.5AHE3/5A application, or P4SMA7.5AHE3/5A equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on standard PCB pads.
Technical Context
The P4SMA7.5AHE3/5A operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and fast response time (<1 ns), enabling effective suppression of ESD and inductive switching transients.
It delivers 400 W peak pulse power under 10/1000 µs waveform at TA = 25 °C, derating linearly above 25 °C per Fig. 2, with thermal resistance RθJA = 120 °C/W and RθJL = 30 °C/W. The device meets J-STD-020 MSL Level 1 and is qualified to AEC-Q101 for automotive use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.13 V / 7.88 V at IT = 10 mA - defines precise clamping onset range for reliable overvoltage protection |
| VWM | 6.40 V - maximum continuous reverse operating voltage before leakage exceeds 500 µA |
| VC @ IPPM | 11.3 V at 35.4 A - clamped voltage during 400 W transient, limiting stress on downstream components |
| IPPM | 35.4 A - peak pulse current capability with 10/1000 µs waveform, supporting robust surge immunity |
| PPPM | 400 W - peak pulse power rating, validated on 0.2" × 0.2" copper pads per JEDEC standards |
| TJ max | +150 °C - enables operation in under-hood automotive and high-temperature industrial environments |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (unidirectional) | Connected to protected line's lower-potential side; conducts during forward surge or bias conditions |
| Cathode | Reverse-biased clamping terminal | Connected to protected line's higher-potential side; avalanches to clamp transients above VWM |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables protection against severe load dump and inductive kick events without thermal runaway |
| Glass passivated junction | Ensures long-term VBR stability and low parameter drift across temperature and lifetime |
| MSL Level 1 (260 °C peak reflow) | Supports single-pass lead-free reflow assembly without moisture-related delamination risk |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, improving protection margin for sensitive ICs |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS subsystems requiring zero-failure reliability |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 5 V/12 V microcontroller power rails from load dump and alternator ripple in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between rail and ground to clamp transients exceeding 6.4 V. Use Value: Limits rail voltage to ≤11.3 V during 35.4 A surges, preventing latch-up or damage to 5 V logic ICs. |
Use Scenario: Shielding analog output lines of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS connected across signal and ground to suppress sub-100 ns ESD pulses. Use Value: Sub-1 ns response ensures clamping before sensor amplifier input stages are overstressed. |
| Consumer Device USB Port Protection | Telecom Equipment DC Input Protection |
Use Scenario: Safeguarding USB 2.0 data lines and VBUS against human-body-model (HBM) ESD up to ±15 kV. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line to absorb positive-going surges while blocking reverse current. Use Value: 6.4 V VWM allows normal 5 V operation; 11.3 V VC prevents USB PHY damage during ESD events. |
Use Scenario: Guarding -48 V telecom power inputs against lightning-induced surges and hot-swap transients. IC Role / Device Role / Timing Role: TVS mounted at board edge to shunt surge energy before reaching DC/DC converters. Use Value: 400 W rating handles repetitive 10/1000 µs surges common in central office environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5A | Same SMA package, 7.13–7.88 V VBR, but rated for 400 W with 10/1000 µs waveform and 1000 W with 10/1000 µs per some revisions; no AEC-Q101 qualification stated in base datasheet | Commercial/industrial use only; not approved for automotive systems requiring AEC-Q101 compliance | Select SMAJ7.5A only if AEC-Q101 is not required and higher peak power margin is needed |
| 1.5SMC7.5A | Higher-power SMC (DO-214AB) package, same VBR range, 1500 W peak pulse power, larger footprint (7.11 mm × 6.22 mm vs. SMA's 4.50 mm × 2.79 mm) | Used where PCB space permits and higher surge endurance is mandatory (e.g., AC mains interfaces) | Choose 1.5SMC7.5A when system-level surge tests exceed 400 W or when thermal mass requirements demand larger package |
Compared with SMAJ7.5A and 1.5SMC7.5A, the P4SMA7.5AHE3/5A uniquely combines AEC-Q101 qualification, compact SMA footprint, and verified 400 W performance - making it the preferred choice for space-constrained automotive modules where qualification and reliability are non-negotiable.
Availability
P4SMA7.5AHE3/5A is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom power supply hardening requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P4SMA7.5AHE3/5A 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, and protection devices with emphasis on reliability, precision, and automotive-grade qualification.
The P4SMA7.5AHE3/5A belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-reliability transient suppression in harsh environments - including automotive, industrial automation, and communications infrastructure.
FAQ
What is the maximum clamping voltage of the P4SMA7.5AHE3/5A under peak pulse conditions?
The P4SMA7.5AHE3/5A has a maximum clamping voltage (VC) of 11.3 V at 35.4 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per JEDEC standards on 0.2" × 0.2" copper pads and ensures downstream components experience limited overvoltage stress during surge events. The P4SMA7.5AHE3/5A maintains this clamping performance across its specified operating temperature range.
Is the P4SMA7.5AHE3/5A qualified for automotive applications?
Yes, the P4SMA7.5AHE3/5A is AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code suffix "HE3". This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD, validating its use in automotive powertrain, body electronics, and ADAS systems. The P4SMA7.5AHE3/5A is explicitly designated for automotive-grade reliability.
What is the standoff voltage rating of the P4SMA7.5AHE3/5A, and how does it relate to circuit operation?
The P4SMA7.5AHE3/5A has a maximum standoff voltage (VWM) of 6.40 V, meaning it remains non-conductive below this reverse voltage level with leakage current ≤500 µA. This allows safe integration into 5 V systems where normal operating voltage must remain below the clamping threshold. The P4SMA7.5AHE3/5A thus protects without interfering with steady-state functionality.
Does the P4SMA7.5AHE3/5A have a defined polarity, and how is it marked on the device?
Yes, the P4SMA7.5AHE3/5A is unidirectional and features a cathode band marking on the SMA (DO-214AC) package body. The banded end is the cathode and must be connected toward the higher-potential side of the protected line. The opposite end is the anode. This polarity is critical for correct transient clamping behavior and must be observed during PCB layout.
What is the thermal resistance profile of the P4SMA7.5AHE3/5A, and how does it affect PCB layout?
The P4SMA7.5AHE3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W and junction-to-lead (RθJL) of 30 °C/W, measured on minimum recommended pad layout (0.2" × 0.2" copper). To maintain reliability under repetitive surges, PCB layout must provide adequate copper area per Vishay's mounting pad recommendations - undersized pads increase thermal impedance and risk premature failure. The P4SMA7.5AHE3/5A requires strict adherence to these thermal guidelines.
P4SMA7.5AHE3/5A 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:
- 1
- Bidirectional Channels:
- -
- 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)
P4SMA7.5AHE3/5A FAQ
1.How can I place an order for P4SMA7.5AHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA7.5AHE3/5A 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 P4SMA7.5AHE3/5A reliable?
The price and inventory of P4SMA7.5AHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA7.5AHE3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA7.5AHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA7.5AHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA7.5AHE3/5A?
P4SMA7.5AHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA7.5AHE3/5A 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 P4SMA7.5AHE3/5A?
For technical support, including P4SMA7.5AHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA7.5AHE3/5A requirements.
6.How does Aetrix verify that P4SMA7.5AHE3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA7.5AHE3/5A 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 P4SMA7.5AHE3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA7.5AHE3/5A?
All P4SMA7.5AHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA7.5AHE3/5A, 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 P4SMA7.5AHE3/5A part is unused and in its original packaging.
Return procedure for P4SMA7.5AHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA7.5AHE3/5A 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 …
