My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P4SMA24AHE3/5A
- Part No.:
- P4SMA24AHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA24AHE3/5A.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,431
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4SMA24AHE3/5A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 24 V standoff voltage (VWM = 20.5 V), 22.8–25.2 V breakdown (VBR at 1 mA), and 33.2 V clamping voltage (VC) at 12.0 A peak pulse current (IPPM) under 10/1000 µs waveform. It delivers 400 W peak pulse power, supports automotive-grade reliability per AEC-Q101, and protects MOSFETs and ICs against inductive switching transients in industrial power supplies.
For engineers reviewing the P4SMA24AHE3/5A datasheet, P4SMA24AHE3/5A pinout, P4SMA24AHE3/5A application, or P4SMA24AHE3/5A equivalent, key selection criteria include clamping voltage margin vs. protected device's absolute maximum rating, thermal resistance (RθJA = 120 °C/W), unidirectional polarity marking, AEC-Q101 qualification status, and compatibility with 13" tape-and-reel automated assembly.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches to divert surge current away from downstream circuitry while limiting voltage across the protected node to ≤33.2 V. Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 µA at 20.5 V).
Designed for transient suppression per IEC 61000-4-2 (ESD) and IEC 61000-4-4 (EFT), it sustains 400 W peak pulse power only at TA = 25 °C - derating applies above 25 °C per Fig. 2, and its 150 °C max junction temperature requires thermal pad layout per recommended 0.2" × 0.2" copper areas.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 20.5 V - Maximum continuous reverse operating voltage before significant leakage; must exceed system nominal rail voltage. |
| VBR (Breakdown Voltage) | 22.8–25.2 V at 1 mA - Confirmed avalanche initiation range; defines minimum overvoltage threshold for clamping action. |
| VC (Clamping Voltage) | 33.2 V at IPPM = 12.0 A - Peak voltage seen by protected circuit during 10/1000 µs surge; must stay below downstream IC's absolute max rating. |
| PPPM (Peak Pulse Power) | 400 W - Surge energy handling capability under standard 10/1000 µs waveform; derates to 300 W above 91 V devices (not applicable here). |
| ID (Reverse Leakage) | <1.0 µA at VWM - Ensures minimal quiescent power loss and signal integrity in high-impedance lines. |
| TJ max | 150 °C - Maximum allowable junction temperature; requires thermal design using RθJA = 120 °C/W and recommended copper pad area. |
| AEC-Q101 Qualified | Yes - Validated for automotive applications including engine control units and body electronics per stress test requirements. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads; cathode indicated by band on one end; meets UL 94 V-0 flammability rating and J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (unidirectional) | Connected to ground or lower-potential node; carries surge current during clamping event. |
| Cathode | Reverse-biased terminal (marked with band) | Connected to protected line (e.g., 24 V rail); avalanche initiates here when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables robust protection against high-energy transients like load dump or inductive kick without sacrificing board space. |
| AEC-Q101 qualification | Validates reliability for automotive environments including temperature cycling, humidity, and mechanical shock per JEDEC standards. |
| Glass passivated junction | Ensures stable VBR over time and temperature, low leakage, and resistance to moisture-induced degradation. |
| MSL Level 1 (JEDEC J-STD-020) | Allows unlimited floor life and reflow up to 260 °C peak - compatible with standard lead-free SMT processes. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD), improving clamping precision and system immunity. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and microcontrollers from voltage spikes caused by relay coil de-energization or PWM motor switching. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between 24 V supply rail and ground, clamping transients within 1 ns response time. Use Value: Limits rail voltage to ≤33.2 V during 12 A surges, preventing latch-up or oxide breakdown in 3.3 V/5 V logic interfaces. |
Use Scenario: Safeguarding LIN bus transceivers and sensor inputs (e.g., door lock actuators) against battery line transients during jump-start or alternator load dump. IC Role / Device Role / Timing Role: Primary rail-level suppressor on 12 V/24 V power input, qualified to AEC-Q101 for automotive lifecycle compliance. Use Value: Maintains <1 µA leakage at 13.5 V nominal, preserving sleep-mode current budgets while surviving 400 W pulses per ISO 7637-2. |
| Telecom Power Interfaces | Consumer Appliance Control Boards |
Use Scenario: Input-stage protection for AC/DC adapters and PoE-powered equipment exposed to lightning-induced surges on primary-side DC rails. IC Role / Device Role / Timing Role: First-line defense on 24–48 V intermediate bus, coordinated with upstream fuses and downstream ceramic capacitors. Use Value: Clamps 10/1000 µs surges to 33.2 V with <0.1% duty cycle tolerance, enabling compact filter design without over-spec'ed downstream components. |
Use Scenario: Protecting MCU GPIOs and display driver ICs from ESD events and relay bounce in washing machine or HVAC control panels. IC Role / Device Role / Timing Role: Localized point-of-use suppressor on 5 V or 12 V subsystem rails, leveraging low-profile SMA footprint for dense layouts. Use Value: Provides sub-10 ns response and 33.2 V clamping to prevent permanent damage to 5 V tolerant I/O pins during 8 kV contact ESD per IEC 61000-4-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Same VWM (20.5 V), VC = 38.9 V at 10.3 A; 400 W rating but higher clamping voltage and no AEC-Q101 qualification. | Acceptable for commercial-grade industrial controls where automotive qualification is not required. | Select SMAJ24A only if AEC-Q101 is unnecessary and higher clamping margin is acceptable. |
| 1.5SMC24A | Higher package thermal resistance (RθJA ≈ 150 °C/W), same VWM/VC specs, but larger SMC (DO-214AB) footprint and no AEC-Q101 listing. | Suitable for legacy designs using SMC pads; less optimal for high-density or automotive PCBs. | Choose 1.5SMC24A only when existing layout uses SMC pads and AEC-Q101 is not mandated. |
Compared with SMAJ24A and 1.5SMC24A, P4SMA24AHE3/5A offers tighter clamping (33.2 V vs. 38.9 V), verified AEC-Q101 compliance, and optimized thermal performance in the smaller SMA package - critical for space-constrained automotive and industrial modules requiring long-term reliability.
Availability
P4SMA24AHE3/5A is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power interfaces, and consumer appliance control boards requiring stable component supply, AEC-Q101 validation, and 13" tape-and-reel delivery for high-volume SMT production.
Supply support for P4SMA24AHE3/5A 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, efficiency, and application-specific optimization.
The P4SMA Series targets cost-sensitive yet performance-critical transient suppression in automotive, industrial, and telecom systems - engineered for high pulse power density, low leakage, and seamless integration into automated SMT lines.
FAQ
What is the clamping voltage of P4SMA24AHE3/5A and why does it matter?
The clamping voltage (VC) of P4SMA24AHE3/5A is 33.2 V at 12.0 A peak pulse current under a 10/1000 µs waveform. This value represents the maximum voltage imposed on the protected circuit during a surge event. It matters because it must remain safely below the absolute maximum voltage rating of downstream components - for example, ensuring 33.2 V stays under the 36 V limit of a typical 24 V-rated MOSFET gate or 3.3 V MCU I/O buffer with external level-shifting.
Is P4SMA24AHE3/5A suitable for automotive applications?
Yes, P4SMA24AHE3/5A is AEC-Q101 qualified, meaning it has passed rigorous stress tests for temperature cycling, humidity, mechanical shock, and high-temperature operating life required for automotive electronics. Its HE3 suffix explicitly denotes AEC-Q101 compliance, making it appropriate for use in body control modules, lighting drivers, and infotainment power rails where reliability under harsh conditions is mandatory.
How does the SMA (DO-214AC) package of P4SMA24AHE3/5A affect thermal performance?
The SMA package of P4SMA24AHE3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" copper pads per terminal. This value directly impacts safe power dissipation: at 25 °C ambient, the device can sustain ~3.3 W continuously, but peak pulse power (400 W) is only permissible for short durations (<1 ms). Proper pad layout is essential to avoid thermal runaway during repetitive surges.
What does the "/5A" suffix mean in P4SMA24AHE3/5A?
The "/5A" suffix in P4SMA24AHE3/5A indicates packaging in a 13-inch diameter plastic tape-and-reel format containing 7500 units - optimized for high-volume automated pick-and-place assembly. This contrasts with "/61", which denotes 7-inch reels of 1800 units. The "HE3" portion confirms RoHS-compliant, AEC-Q101-qualified construction, while "24A" specifies the 24 V nominal standoff rating.
Can P4SMA24AHE3/5A be used in bidirectional configurations?
No, P4SMA24AHE3/5A is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional operation requires a part with "CA" suffix (e.g., P4SMA24CA). Using P4SMA24AHE3/5A in reverse-biased AC signal paths would result in forward conduction and potential failure; always verify polarity alignment during schematic capture and layout.
P4SMA24AHE3/5A 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):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 33.2V
- Current - Peak Pulse (10/1000µs):
- 12A
- 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)
P4SMA24AHE3/5A FAQ
1.How can I place an order for P4SMA24AHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA24AHE3/5A 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 P4SMA24AHE3/5A reliable?
The price and inventory of P4SMA24AHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA24AHE3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA24AHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA24AHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA24AHE3/5A?
P4SMA24AHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA24AHE3/5A 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 P4SMA24AHE3/5A?
For technical support, including P4SMA24AHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA24AHE3/5A requirements.
6.How does Aetrix verify that P4SMA24AHE3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA24AHE3/5A 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 P4SMA24AHE3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA24AHE3/5A?
All P4SMA24AHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA24AHE3/5A, 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 P4SMA24AHE3/5A part is unused and in its original packaging.
Return procedure for P4SMA24AHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA24AHE3/5A 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 …
