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Vishay General Semiconductor - Diodes Division SA24AHE3/54
- Part No.:
- SA24AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA24AHE3/54.pdf
- Description:
- TVS DIODE 24VWM 38.9VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,697
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Product details
Overview
SA24AHE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-15 package, designed for overvoltage protection of sensitive electronics. It features 24 V stand-off voltage (VWM), 26.7–29.5 V breakdown voltage (VBR) at 1 mA, 500 W peak pulse power (10/1000 μs), clamping voltage of 38.9 V at 12.9 A, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SA24AHE3/54 datasheet, SA24AHE3/54 pinout, SA24AHE3/54 application, or SA24AHE3/54 equivalent, key selection criteria include its unidirectional polarity, 3.0 W steady-state power dissipation, -55 °C to +175 °C operating junction temperature, 3.5 V max forward voltage at 100 A, and RoHS-compliant matte tin-plated leads per J-STD-002.
Technical Context
The SA24AHE3/54 operates as a silicon avalanche diode with glass-passivated junction, responding to transient overvoltages within picoseconds. Its clamping action limits induced surge voltages across protected ICs or MOSFETs during inductive load switching or ESD events.
It is rated for 70 A non-repetitive forward surge current (IFSM), exhibits low incremental surge resistance, and maintains stable VBR temperature coefficient of +28 mV/°C - critical for predictable clamping behavior across automotive thermal environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - maximum continuous reverse working voltage before clamping initiates |
| VBR (min/max) | 26.7 V / 29.5 V at 1 mA - guaranteed avalanche onset range under standardized test conditions |
| VC @ IPPM | 38.9 V at 12.9 A - maximum clamped voltage during 10/1000 μs surge, defining worst-case protection level |
| PPPM | 500 W - peak transient energy handling capability without failure under defined waveform |
| IFSM | 70 A - surge current tolerance for 10 ms half-sine pulse, supporting motor driver or relay coil suppression |
| TJ max. | +175 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| Leakage ID | 1.0 μA at 24 V - ensures minimal standby power loss in battery-powered sensor nodes |
Pinout & Package
Package: DO-15 (DO-204AC), axial leaded, molded epoxy case meeting UL 94 V-0. Cathode indicated by color band on body; leads are matte tin plated, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or lower-potential rail in unidirectional TVS configuration |
| Cathode | Avalanche clamping terminal | Connected to protected line (e.g., CAN_H, power rail, signal input); color-banded end |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repeated surges |
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| 500 W peak pulse power (10/1000 μs) | Provides robust protection against ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 surge events |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes voltage overshoot during transients, reducing stress on downstream logic and analog circuitry |
| RoHS-compliant HE3 suffix | Indicates AEC-Q101 qualification and JESD 201 Class 2 whisker resistance for high-reliability assembly |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply rails in vehicle body control modules from load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and ground to clamp transients above 29.5 V. Use Value: Limits peak voltage to ≤38.9 V during 12.9 A surges, preventing damage to MCU power regulators and CAN transceivers. | Use Scenario: Safeguarding analog inputs of PLC analog I/O modules connected to 4–20 mA field transmitters. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt fast transients before reaching op-amp front-end. Use Value: Sub-100 ns response time and 1.0 μA leakage ensure signal integrity and low power consumption in precision measurement circuits. |
| Consumer Appliance Motor Drive Protection | Telecom DC Power Input Protection |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in smart home appliances (e.g., washing machine control boards). IC Role / Device Role / Timing Role: Placed across motor terminals or H-bridge outputs to absorb inductive energy. Use Value: Withstands 70 A single-pulse surge (IFSM), enabling reliable protection without derating in intermittent duty cycles. | Use Scenario: Guarding primary 48 V DC input of telecom remote radio units against lightning-induced surges on outdoor power feeds. IC Role / Device Role / Timing Role: First-stage clamping device upstream of DC-DC converters and hot-swap controllers. Use Value: 500 W PPPM rating and DO-15 mechanical robustness support compliance with GR-1089-CORE Level 3 surge immunity requirements. |
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-E3/5A | Same VWM (24 V), but SMA package (surface-mount); lower IPPM (12.3 A vs. 12.9 A); same 500 W PPPM | Requires PCB rework for SMT layout; better suited for space-constrained consumer designs | Select when automated assembly and board density outweigh through-hole serviceability needs |
| P6SMB24A | Same DO-15 package and VWM; slightly higher VBR (26.7–30.3 V); identical clamping (38.9 V) and PPPM (500 W) | Widely stocked alternative with identical mechanical fit and electrical envelope | Choose for dual-source procurement where second-source validation is required |
Compared with SMAJ24A-E3/5A and P6SMB24A, the SA24AHE3/54 offers AEC-Q101 qualification and JESD 201 Class 2 whisker resistance - making it the preferred choice for automotive-grade production where long-term interconnect reliability is mandatory.
Availability
SA24AHE3/54 is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC analog I/O modules, appliance motor drive boards, and telecom DC power inputs requiring stable component supply across extended temperature ranges and high-reliability qualification.
Supply support for SA24AHE3/54 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, efficiency, and qualification for harsh environments.
The SAxxA series is part of Vishay's TRANSZORB® TVS family, engineered specifically for robust, cost-effective overvoltage protection in automotive, industrial, and telecom infrastructure applications demanding AEC-Q101 or high-surge immunity.
FAQ
What is the polarity configuration of the SA24AHE3/54?
The SA24AHE3/54 is a unidirectional Transient Voltage Suppressor. Its cathode is marked by a color band on the DO-15 package body, and it conducts only in reverse bias during overvoltage events. This configuration makes SA24AHE3/54 suitable for DC line protection where polarity is fixed, unlike bidirectional variants such as SA24CA.
Is the SA24AHE3/54 qualified for automotive applications?
Yes, the SA24AHE3/54 carries the HE3 suffix, which denotes AEC-Q101 qualification per Vishay's documentation. This certification confirms its suitability for automotive electronic systems, including engine control, body electronics, and ADAS sensor interfaces operating across -55 °C to +175 °C junction temperatures.
What is the maximum clamping voltage of the SA24AHE3/54 under surge conditions?
The SA24AHE3/54 has a maximum clamping voltage (VC) of 38.9 V at 12.9 A peak pulse current (IPPM), measured using the standard 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during transient events and is critical for ensuring downstream components remain within safe operating voltage margins.
How does the SA24AHE3/54 differ from the SA24CA variant?
The SA24AHE3/54 is unidirectional with cathode marking and forward conduction capability, while SA24CA is bidirectional with no polarity marking and symmetrical clamping in both directions. SA24AHE3/54 supports higher IFSM (70 A) and is AEC-Q101 qualified (HE3), whereas SA24CA lacks forward surge rating and uses E3 suffix for commercial grade only.
What packaging and reel format is supplied for the SA24AHE3/54?
The SA24AHE3/54 is supplied in 13" diameter paper tape and reel format, with a base quantity of 4000 units per reel. The "54" in the part number refers to Vishay's preferred package code for this DO-15 tape-and-reel configuration, and the device weight is 0.432 g per unit.
SA24AHE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 38.9V
- Current - Peak Pulse (10/1000µs):
- 12.9A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA24AHE3/54 FAQ
1.How can I place an order for SA24AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA24AHE3/54 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 SA24AHE3/54 reliable?
The price and inventory of SA24AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA24AHE3/54 is usually 5 days.
3.What payment methods are accepted for SA24AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA24AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA24AHE3/54?
SA24AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA24AHE3/54 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 SA24AHE3/54?
For technical support, including SA24AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA24AHE3/54 requirements.
6.How does Aetrix verify that SA24AHE3/54 is sourced from the original manufacturer or authorized distributors?
All SA24AHE3/54 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 SA24AHE3/54 meets industry standards.
7.What is the process for return or replacement of SA24AHE3/54?
All SA24AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA24AHE3/54, 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 SA24AHE3/54 part is unused and in its original packaging.
Return procedure for SA24AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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