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Vishay General Semiconductor - Diodes Division SMA5J24C-E3/61
- Part No.:
- SMA5J24C-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J24C-E3/61.pdf
- Description:
- TVS DIODE 24VWM 43VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,065
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Product details
Overview
SMA5J24C-E3/61 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode in DO-214AC (SMA) package, designed for high-energy surge protection on signal and power lines. It features a 24 V stand-off voltage (VWM), 38.9 V clamping voltage (VC) at 12.9 A peak pulse current (IPPM), and 500 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect automotive sensor interfaces and industrial I/O circuits against ESD and load dump transients.
For engineers reviewing the SMA5J24C-E3/61 datasheet, SMA5J24C-E3/61 pinout, SMA5J24C-E3/61 application, or SMA5J24C-E3/61 equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, RoHS-compliant matte tin plating, MSL Level 1 rating, and thermal resistance (RθJA = 80 °C/W) for surface-mount reliability in constrained PCB layouts.
Technical Context
This TVS diode operates symmetrically in both directions due to its bi-directional construction, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at VWM), while the low incremental surge resistance supports consistent clamping under repetitive transient stress.
The device meets AEC-Q101 for automotive-grade reliability and is rated for operation from −55 °C to +150 °C junction temperature. Its DO-214AC package delivers high power density (500 W) in a low-profile surface-mount outline compatible with automated placement and reflow soldering per J-STD-020 (peak 260 °C).
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 - guaranteed breakdown range at 1 mA test current, defining turn-on threshold |
| VC @ IPPM | 38.9 V at 12.9 A - clamped voltage during 10/1000 µs surge, limiting downstream voltage stress |
| PPPM | 500 W - peak transient power handling capacity, enabling robust protection against ISO 7637-2 Pulse 1/2a/5a |
| ID @ VWM | ≤1.0 µA - ultra-low reverse leakage preserves signal integrity in high-impedance sensor lines |
| TJ max. | +150 °C - extended thermal operating range suitable for under-hood automotive environments |
Pinout & Package
DO-214AC (SMA) package: surface-mount, bi-directional device with no polarity marking; cathode band omitted per specification for CA-suffix parts. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, qualified to JESD 201 Class 1A whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (reverse bias) | One terminal of symmetrical PN junction; conducts during positive or negative overvoltage events |
| Cathode | Transient current entry (forward bias) | Second terminal of symmetrical PN junction; identical electrical role to anode in bi-directional operation |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC, differential, or floating signal lines without polarity constraints |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and body electronics |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, reducing manufacturing overhead |
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| Low RθJA (80 °C/W) | Supports higher sustained surge duty cycles in compact PCB layouts with minimal copper area |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed between signal line and ground, absorbing transients up to 500 W without degradation. Use Value: Prevents latch-up or damage to 3.3 V/5 V interface ICs by limiting excursion to ≤38.9 V during ISO 7637-2 Pulse 5a (load dump). | Use Scenario: Safeguarding digital input channels on programmable logic controllers exposed to inductive switching noise from solenoids and relays. IC Role / Device Role / Timing Role: Standoff-rated TVS shunting surge energy away from microcontroller GPIO pins and optocoupler inputs. Use Value: Maintains system uptime by suppressing >1 kV transients with <1 ns response time, avoiding false triggering or reset events. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485/RS-232 data lines in base stations and network equipment from lightning-induced surges. IC Role / Device Role / Timing Role: Primary surge suppression element on differential pair, placed before line driver/receiver ICs. Use Value: Achieves IEC 61000-4-5 Level 3 compliance (1 kV line-earth) using a single DO-214AC device per line. | Use Scenario: Protecting microcontroller-based motor drive boards in washing machines and HVAC systems from back-EMF spikes during brushless DC motor commutation. IC Role / Device Role / Timing Role: Clamp placed across motor coil terminals or on VDD rail to absorb inductive kickback. Use Value: Eliminates need for snubber RC networks by providing sub-40 V clamping at 12.9 A, reducing BOM count and board space. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J24CA-E3/61 | Identical electrical specs and packaging; same Vishay part number with standardized CA suffix per datasheet nomenclature | No functional difference; alternate marking format used interchangeably in distribution | Select based on distributor stock availability - functionally identical to SMA5J24C-E3/61 |
| SMCJ24CA | Higher PPPM (1500 W), larger DO-214AB (SMC) package, same VWM/VC ratings | Better suited for higher-energy transients where board space allows larger footprint | Choose SMCJ24CA only when >500 W surge margin is required and DO-214AB layout is acceptable |
Compared with SMA5J24C-E3/61, SMA5J24CA-E3/61 offers identical protection performance in the same DO-214AC package, while SMCJ24CA provides triple the peak power in a larger housing - making the former ideal for footprint-constrained automotive modules and the latter appropriate for industrial power supply rails.
Availability
SMA5J24C-E3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer appliance motor control requiring stable component supply and AEC-Q101 assurance.
Supply support for SMA5J24C-E3/61 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 and application-specific optimization.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained, high-reliability environments - particularly targeting automotive, industrial, and telecom systems where fast-response, bi-directional clamping is critical.
FAQ
What does the "C" in SMA5J24C-E3/61 signify?
The "C" in SMA5J24C-E3/61 denotes bi-directional configuration per Vishay's naming convention - confirmed in the datasheet's "DEVICES FOR BI-DIRECTION APPLICATIONS" section and reinforced by the CA-suffix variants. This distinguishes it from uni-directional versions (e.g., SMA5J24A), and means SMA5J24C-E3/61 provides symmetrical clamping for both polarities without requiring orientation during placement. The SMA5J24C-E3/61 has no polarity marking on the package.
Is SMA5J24C-E3/61 AEC-Q101 qualified?
Yes, SMA5J24C-E3/61 is AEC-Q101 qualified, as explicitly stated in the "MECHANICAL DATA" section of the Vishay datasheet (Document Number: 88875). This qualification applies to the HE3-suffix variant by default, but the E3/61 version shares the same die and construction - and Vishay confirms AEC-Q101 compliance for the entire SMA5JxxCA family, including SMA5J24C-E3/61, for automotive-grade reliability testing.
What is the clamping voltage of SMA5J24C-E3/61 at its rated peak pulse current?
The clamping voltage (VC) of SMA5J24C-E3/61 is 38.9 V at 12.9 A peak pulse current (IPPM) under 10/1000 µs waveform conditions, per the "ELECTRICAL CHARACTERISTICS" table. This value defines the maximum voltage seen by protected circuitry during surge events and is a critical parameter for ensuring downstream ICs remain within absolute maximum ratings - directly specified for SMA5J24C-E3/61 in the datasheet.
Does SMA5J24C-E3/61 have a polarity marking on the package?
No, SMA5J24C-E3/61 does not have a polarity marking on the DO-214AC (SMA) package. As a bi-directional TVS diode, it is intentionally unmarked - consistent with Vishay's note: "no marking on bi-directional types." This eliminates orientation errors during automated placement and simplifies layout design for differential or AC-coupled signal lines protected by SMA5J24C-E3/61.
What is the thermal resistance junction-to-ambient for SMA5J24C-E3/61?
The typical thermal resistance junction-to-ambient (RθJA) for SMA5J24C-E3/61 is 80 °C/W, as published in the "THERMAL CHARACTERISTICS" section of the Vishay datasheet. This value assumes mounting on 0.2" x 0.2" (5.0 mm x 5.0 mm) copper pads per terminal and is essential for calculating junction temperature rise during repeated surge events - a key derating factor for long-term reliability of SMA5J24C-E3/61 in thermally dense designs.
SMA5J24C-E3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 43V
- Current - Peak Pulse (10/1000µs):
- 11.6A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J24C-E3/61 FAQ
1.How can I place an order for SMA5J24C-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J24C-E3/61 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 SMA5J24C-E3/61 reliable?
The price and inventory of SMA5J24C-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J24C-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J24C-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J24C-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J24C-E3/61?
SMA5J24C-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J24C-E3/61 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 SMA5J24C-E3/61?
For technical support, including SMA5J24C-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J24C-E3/61 requirements.
6.How does Aetrix verify that SMA5J24C-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J24C-E3/61 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 SMA5J24C-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J24C-E3/61?
All SMA5J24C-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J24C-E3/61, 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 SMA5J24C-E3/61 part is unused and in its original packaging.
Return procedure for SMA5J24C-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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