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Vishay General Semiconductor - Diodes Division SA24A-E3/54
- Part No.:
- SA24A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA24A-E3/54.pdf
- Description:
- TVS DIODE 24VWM 38.9VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,600
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Product details
Overview
SA24A-E3/54 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor diode in DO-15 package, rated for 24 V stand-off voltage (VWM), 26.7–29.5 V breakdown (VBR at 1 mA), 38.9 V clamping voltage (VC) at 12.9 A peak pulse current, and 500 W peak pulse power with 10/1000 μs waveform - used to protect MOSFETs and sensor signal lines in industrial motor drives.
For engineers reviewing the SA24A-E3/54 datasheet, SA24A-E3/54 pinout, SA24A-E3/54 application, or SA24A-E3/54 equivalent, key selection criteria include unidirectional polarity, DO-15 mechanical compatibility, 175 °C max junction temperature, AEC-Q101 qualification status, and 1.0 μA reverse leakage at VWM.
Technical Context
This device operates as a clamping-type TVS diode, leveraging a glass-passivated silicon junction to achieve sub-nanosecond response to transients. Its unidirectional configuration provides forward conduction path during overvoltage events while blocking reverse current until breakdown threshold is exceeded.
The SA24A-E3/54 delivers 500 W peak pulse power handling per 10/1000 μs waveform with 0.01 % duty cycle, exhibits low incremental surge resistance, and maintains stable clamping performance across -55 °C to +175 °C operating range - enabling robust protection in automotive powertrain and industrial PLC I/O modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 26.7 V / 29.5 V at 1 mA - ensures reliable turn-on within defined tolerance band under standardized test conditions |
| VC @ IPPM | 38.9 V at 12.9 A - limits downstream voltage stress during worst-case 10/1000 μs surge event |
| PPPM | 500 W - defines maximum transient energy absorption capability without failure |
| IFSM | 70 A - supports single half-sine surge up to 10 ms, critical for inductive load switching protection |
| TJ max | +175 °C - enables operation in high-temperature engine bay or enclosed industrial enclosures |
| Leakage @ VWM | 1.0 μA - minimizes standby power loss and avoids false triggering in low-power sensor circuits |
Pinout & Package
SA24A-E3/54 uses the DO-15 (DO-204AC) axial-leaded package: molded epoxy body, matte tin-plated leads solderable per J-STD-002, with cathode indicated by color band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connects to protected circuit ground or low-side return path during transient clamp |
| Cathode (banded end) | Reverse-biased clamping terminal | Connects to line being protected; conducts when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures long-term reliability and stable VBR drift under thermal cycling and humidity exposure |
| AEC-Q101 qualified | Validated for automotive powertrain and chassis applications requiring zero defect field performance |
| 500 W peak pulse power (10/1000 μs) | Handles repetitive ESD and load-dump surges common in 12 V/24 V vehicle electrical systems |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive ICs |
| Solder dip 275 °C max., 10 s | Supports standard wave and reflow soldering processes without parametric shift or delamination |
Applications
| Automotive Load-Dump Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting CAN transceiver inputs and microcontroller GPIOs from ISO 7637-2 Pulse 5a load-dump transients in 24 V commercial vehicles. IC Role / Device Role / Timing Role: Clamping diode placed between signal line and ground, activated within <1 ns upon exceeding VBR. Use Value: Limits transient voltage to ≤38.9 V, preventing latch-up or gate oxide damage in connected 3.3 V/5 V logic devices. | Use Scenario: Safeguarding analog output lines of pressure sensors in hydraulic control valves exposed to inductive kickback. IC Role / Device Role / Timing Role: Unidirectional shunt element absorbing energy from solenoid coil de-energization spikes. Use Value: Maintains signal integrity by clamping spikes before they propagate into 16-bit ADC front-end stages. |
| Power Supply Input Stage Protection | MOSFET Gate Driver Protection |
Use Scenario: Secondary-side overvoltage suppression on DC-DC converter outputs feeding FPGA core rails. IC Role / Device Role / Timing Role: Standby-mode protector holding VWM = 24 V while clamping surges above 26.7 V. Use Value: Prevents catastrophic failure of downstream LDOs and PMICs during input capacitor discharge events. | Use Scenario: Shielding high-side N-channel MOSFET gate drivers from Miller-induced voltage spikes during fast switching. IC Role / Device Role / Timing Role: Fast-response clamp limiting gate-source voltage excursion beyond safe VGS rating. Use Value: Enables reliable 100 kHz+ PWM operation by suppressing >40 V transients that would otherwise exceed ±20 V gate rating. |
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-E3/57 | Same VWM/VBR/VC, but SMA package (surface-mount); lower IPPM (12.3 A vs. 12.9 A) | Requires PCB redesign for SMT placement; better suited for space-constrained consumer electronics | Select SMAJ24A-E3/57 only if board layout mandates surface-mount and thermal mass allows reduced surge margin. |
| 1.5KE24A | Higher PPPM (1500 W), larger DO-201 package, higher VC (38.7 V → 43.0 V), same VWM | Used where higher single-pulse energy absorption is required, e.g., alternator regulator protection | Choose 1.5KE24A when system-level testing shows SA24A-E3/54 clamping margin is insufficient for worst-case load dump. |
Compared with SMAJ24A-E3/57 and 1.5KE24A, SA24A-E3/54 offers optimal balance of axial-leaded mechanical robustness, AEC-Q101 qualification, and precise 38.9 V clamping for mid-power industrial and automotive subsystems - without requiring footprint change or sacrificing surge margin.
Availability
SA24A-E3/54 is available at Aetrix Electronics and suitable for automotive powertrain modules, industrial PLC I/O cards, and sensor interface boards requiring stable component supply and long-lifecycle support.
Supply support for SA24A-E3/54 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, and protection devices with emphasis on reliability and automotive-grade qualification.
The SAxxA series is designed specifically for robust transient suppression in harsh environments - targeting 12 V/24 V automotive, industrial motor controls, and telecom infrastructure where clamping precision and thermal endurance are critical.
FAQ
What is the maximum clamping voltage of SA24A-E3/54 under standard test conditions?
The SA24A-E3/54 has a maximum clamping voltage (VC) of 38.9 V when subjected to its rated peak pulse current of 12.9 A using the 10/1000 μs waveform. This value is measured per JEDEC standards and guarantees that downstream components see no more than 38.9 V during specified surge events - a critical parameter for ensuring compatibility with 3.3 V, 5 V, or 24 V logic interfaces.
Is SA24A-E3/54 qualified for automotive applications?
Yes, SA24A-E3/54 is AEC-Q101 qualified, confirming its suitability for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. The qualification covers stress tests for temperature cycling, humidity, mechanical shock, and surge immunity - all performed on the exact SA24A-E3/54 variant, not just the family.
What does the "E3/54" suffix indicate in SA24A-E3/54?
The "E3" suffix denotes RoHS-compliant, commercial-grade construction with JESD 201 Class 1A whisker resistance; "/54" specifies packaging in 13-inch paper tape and reel with 4000 units per reel. This ordering code ensures consistent lead finish, solderability, and automated assembly compatibility - verified per J-STD-002 and JESD 22-B102.
Can SA24A-E3/54 be used in bidirectional configurations?
No, SA24A-E3/54 is strictly unidirectional. Bidirectional variants use the "CA" suffix (e.g., SA24CA). Using SA24A-E3/54 in reverse-biased signal paths will result in forward conduction and potential damage - always verify polarity marking (cathode band) and match device type to circuit topology.
What is the thermal derating behavior of SA24A-E3/54 above 25 °C ambient?
SA24A-E3/54 follows a linear derating curve from 100 % power at 25 °C to 0 % at 175 °C junction temperature. At 75 °C lead temperature (TL), its steady-state power dissipation drops to 3.0 W; above that, derating is governed by Fig. 2 in the datasheet - critical for mounting near heat sources like power MOSFETs or transformers.
SA24A-E3/54 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA24A-E3/54 FAQ
1.How can I place an order for SA24A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA24A-E3/54 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 SA24A-E3/54 reliable?
The price and inventory of SA24A-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA24A-E3/54 is usually 5 days.
3.What payment methods are accepted for SA24A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA24A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA24A-E3/54?
SA24A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA24A-E3/54 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 SA24A-E3/54?
For technical support, including SA24A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA24A-E3/54 requirements.
6.How does Aetrix verify that SA24A-E3/54 is sourced from the original manufacturer or authorized distributors?
All SA24A-E3/54 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 SA24A-E3/54 meets industry standards.
7.What is the process for return or replacement of SA24A-E3/54?
All SA24A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA24A-E3/54, 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 SA24A-E3/54 part is unused and in its original packaging.
Return procedure for SA24A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA24A-E3/54 Tags
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