My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P4SMA24A-M3/5A
- Part No.:
- P4SMA24A-M3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA24A-M3/5A.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,382
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4SMA24A-M3/5A 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 a 24 V breakdown voltage (VBR = 22.8–25.2 V at 1 mA), 20.5 V standoff voltage (VWM), 33.2 V maximum clamping voltage at 12 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the P4SMA24A-M3/5A datasheet, P4SMA24A-M3/5A pinout, P4SMA24A-M3/5A application, or P4SMA24A-M3/5A equivalent, key selection criteria include unidirectional polarity, 150 °C max junction temperature, halogen-free RoHS compliance (M3 suffix), MSL Level 1 moisture sensitivity, and AEC-Q101 qualification readiness (via HE3/HM3 variants).
Technical Context
The P4SMA24A-M3/5A operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold (22.8–25.2 V). Its glass-passivated junction ensures stable clamping performance under repetitive surge conditions, with low incremental surge resistance enabling fast transient suppression (<1 ns response time).
Thermal design relies on its RθJA of 120 °C/W and RθJL of 30 °C/W, requiring minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for rated 400 W pulse handling. It supports 40 A non-repetitive forward surge current (8.3 ms half-sine) and maintains operation across -65 °C to +150 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 22.8 V / 25.2 V at 1 mA - defines precise avalanche onset window for reliable overvoltage triggering |
| VWM | 20.5 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 33.2 V at 12 A - clamped voltage during 10/1000 µs surge, limiting downstream device stress |
| PPPM | 400 W - peak pulse power handling capability under standard 10/1000 µs waveform |
| IFSM | 40 A - single half-sine surge current rating (8.3 ms), critical for inductive load switching protection |
| TJ max | +150 °C - maximum junction temperature enabling use in high-ambient industrial environments |
| Package | SMA (DO-214AC) - surface-mount outline with cathode band marking, compatible with automated placement |
Pinout & Package
SMA (DO-214AC) package: molded epoxy case with matte tin-plated leads, UL 94 V-0 flammability rating, and polarity indicated by cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side in unidirectional configuration; carries surge current during clamping |
| Cathode | Reverse-biased clamping terminal | Marked with band; referenced to system ground or protected line; initiates avalanche at VBR |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 24 V DC rails |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without preconditioning, reducing manufacturing complexity |
| AEC-Q101 qualified variants available | Enables drop-in qualification path for automotive subsystems via P4SMA24AHM3_A/I ordering code |
| Halogen-free & RoHS-compliant (M3) | Fulfills environmental compliance requirements for industrial and consumer end equipment |
Applications
| Industrial Power Supply Protection | Automotive Sensor Interface Protection |
|---|---|
Use Scenario: 24 V DC input stage of programmable logic controller (PLC) power module exposed to load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VIN and GND to clamp transients before DC-DC converter input. Use Value: Limits voltage to ≤33.2 V during 12 A surges, preventing damage to 36 V-rated input capacitors and controller ICs. |
Use Scenario: CAN bus or LIN signal line in engine control unit (ECU), subject to ISO 7637-2 pulse 1/2a/5a. IC Role / Device Role / Timing Role: Standoff protection device on signal line, grounded via low-inductance path to suppress ESD and coupled noise. Use Value: Clamps 10/1000 µs transients to 33.2 V while maintaining <1 µA leakage at 20.5 V, preserving signal integrity. |
| Consumer Appliance Motor Drive | Telecom PoE Interface Protection |
Use Scenario: H-bridge gate driver supply rail in smart HVAC blower motor, subjected to back-EMF spikes during PWM commutation. IC Role / Device Role / Timing Role: Local clamping device across VDD and GND near gate driver IC to absorb inductive energy. Use Value: Responds in <1 ns to limit voltage overshoot to 33.2 V, protecting 30 V-rated driver inputs without affecting PWM timing. |
Use Scenario: Data pair protection on IEEE 802.3af/at Power over Ethernet (PoE) midspan injector output. IC Role / Device Role / Timing Role: Unidirectional TVS on each data line (BIAS+/-), referenced to common-mode ground. Use Value: Handles 400 W surges while maintaining 20.5 V working voltage margin above 19 V PoE nominal, avoiding false triggering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A (Bourns) | Same VWM/VBR/VC specs but SMB package (DO-214AA); 600 W PPPM, higher IPPM (33.3 A) | Larger footprint; better suited for higher-energy surges where board space allows | Select when surge energy exceeds 400 W or thermal dissipation requires larger pad area |
| 1.5SMC24A (ON Semiconductor) | Same electrical specs, SMC (DO-214AB) package; 1.5 kW PPPM, 69.8 A IPPM, RθJA = 100 °C/W | Higher power rating and improved thermal performance, but 30 % larger footprint than SMA | Choose for legacy designs using SMC or where extended surge endurance is required without layout change |
Compared with SMBJ24A and 1.5SMC24A, the P4SMA24A-M3/5A offers optimal balance of compact SMA footprint, halogen-free compliance, and sufficient 400 W surge capacity for space-constrained industrial and automotive modules - making it preferred where PCB real estate and environmental compliance are prioritized over maximum pulse energy handling.
Availability
P4SMA24A-M3/5A is available at Aetrix Electronics and suitable for industrial power supplies, automotive sensor interfaces, consumer appliance motor drives, and telecom PoE interfaces requiring stable component supply with halogen-free and RoHS-compliant sourcing.
Supply support for P4SMA24A-M3/5A 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, power efficiency, and automotive-grade qualification.
The P4SMA Series is engineered for cost-effective, high-volume transient suppression in consumer, industrial, and automotive electronics - delivering consistent clamping performance in compact surface-mount packages like SMA.
FAQ
What is the polarity configuration of the P4SMA24A-M3/5A?
The P4SMA24A-M3/5A is a unidirectional TVS diode, with the cathode identified by a visible band on the SMA (DO-214AC) package body. This polarity enables it to conduct only during reverse overvoltage events, making it suitable for DC rail protection where forward conduction must be blocked. The P4SMA24A-M3/5A does not conduct in forward bias except during specified surge conditions.
Does the P4SMA24A-M3/5A meet AEC-Q101 qualification?
The P4SMA24A-M3/5A itself is not AEC-Q101 qualified; however, Vishay offers the functionally identical P4SMA24AHM3_A/I variant - which shares the same electrical characteristics and SMA package - with full AEC-Q101 qualification for automotive applications. The "HM3" suffix denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction.
What is the maximum clamping voltage of the P4SMA24A-M3/5A under surge conditions?
The P4SMA24A-M3/5A has a maximum clamping voltage (VC) of 33.2 V at 12 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured with the device mounted on 0.2" × 0.2" copper pads and represents the upper voltage limit imposed on protected circuitry during transient events.
Can the P4SMA24A-M3/5A be used in bidirectional signal line protection?
No - the P4SMA24A-M3/5A is strictly unidirectional and unsuitable for bidirectional signal lines such as USB or RS-485 without external circuitry. For bidirectional protection, Vishay specifies the P4SMA24CA variant (with "CA" suffix), which provides symmetrical clamping in both polarities and uses the same SMA package but lacks polarity marking.
What does the "M3/5A" suffix indicate in P4SMA24A-M3/5A?
The "M3" suffix denotes halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance; "5A" specifies packaging in 13-inch diameter tape-and-reel format containing 7500 units. This distinguishes it from "/61" (7-inch reel, 1800 units) and "E3" (standard RoHS, non-halogen-free) variants - all sharing identical electrical performance.
P4SMA24A-M3/5A 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:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA24A-M3/5A FAQ
1.How can I place an order for P4SMA24A-M3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA24A-M3/5A 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 P4SMA24A-M3/5A reliable?
The price and inventory of P4SMA24A-M3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA24A-M3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA24A-M3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA24A-M3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA24A-M3/5A?
P4SMA24A-M3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA24A-M3/5A 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 P4SMA24A-M3/5A?
For technical support, including P4SMA24A-M3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA24A-M3/5A requirements.
6.How does Aetrix verify that P4SMA24A-M3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA24A-M3/5A 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 P4SMA24A-M3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA24A-M3/5A?
All P4SMA24A-M3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA24A-M3/5A, 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 P4SMA24A-M3/5A part is unused and in its original packaging.
Return procedure for P4SMA24A-M3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA24A-M3/5A 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 …
