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Vishay General Semiconductor - Diodes Division SMA5J24HE3/61
- Part No.:
- SMA5J24HE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J24HE3/61.pdf
- Description:
- TVS DIODE 24VWM 43VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,807
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Product details
Overview
SMA5J24HE3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 24 V standoff voltage (VWM), 26.7–29.5 V breakdown voltage (VBR), 38.9 V clamping voltage (VC) at 12.9 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform - used to protect automotive ECUs, industrial I/O modules, and power supply inputs against ESD and load dump transients.
For engineers reviewing the SMA5J24HE3/61 datasheet, SMA5J24HE3/61 pinout, SMA5J24HE3/61 application, or SMA5J24HE3/61 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, RoHS-compliant matte tin terminals, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (<1 µA leakage at 24 V), but conducts heavily when transient voltage exceeds VBR, limiting downstream voltage to ≤38.9 V. Its glass-passivated junction ensures stable breakdown and low incremental surge resistance.
Designed for single-polarity DC systems, SMA5J24HE3/61 supports peak forward surge current of 40 A (8.3 ms half-sine), thermal resistance of 25 °C/W (junction-to-lead), and meets MSL Level 1 reflow profile (260 °C peak). It is not rated for bidirectional use - no cathode band marking applies only to bi-directional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous reverse operating voltage before conduction begins; sets upper limit for protected circuit's nominal DC rail. |
| VBR min/max | 26.7 V / 29.5 V at 1 mA - Confirmed breakdown range ensures reliable triggering above system overvoltage margin without false trips. |
| VC @ IPPM | 38.9 V at 12.9 A - Clamping voltage during 10/1000 µs surge defines maximum stress imposed on downstream ICs or MOSFETs. |
| PPPM | 500 W - Peak pulse power handling capacity determines survivability against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges. |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and thermally constrained industrial enclosures. |
| Qualification | AEC-Q101 qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per JESD22-A114. |
Pinout & Package
DO-214AC (SMA) surface-mount package: molded epoxy case meeting UL 94 V-0, 5.28 mm × 4.50 mm body, 2.54 mm lead pitch, matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band at one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; completes conduction path during positive transients on cathode side. |
| Cathode (banded end) | High-side connection point | Connected to protected line (e.g., 24 V rail); clamps voltage by shunting surge current to ground when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile DO-214AC package | Enables compact PCB layout in space-constrained automotive and industrial modules without sacrificing 500 W surge capability. |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| AEC-Q101 qualification | Validates suitability for automotive applications including engine control, body electronics, and ADAS sensor interfaces. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, simplifying SMT manufacturing flow. |
Applications
| Automotive Power Input Protection | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: Protecting 24 V supply input of engine control unit (ECU) against load dump transients up to 60 V and ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional shunt TVS diode placed between battery rail and DC-DC converter input. Use Value: Limits clamped voltage to 38.9 V, preventing damage to downstream 40 V-rated input capacitors and controller ICs. |
Use Scenario: Safeguarding 24 V digital input channel of programmable logic controller against field-wiring induced surges and ESD events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on isolated input terminal block, upstream of optocoupler or Schmitt trigger. Use Value: Responds in <1 ps to transients, maintaining signal integrity while absorbing 500 W pulses without degradation. |
| Telecom DC Power Feeds | Motor Drive Gate Driver Supply Rail |
Use Scenario: Securing -48 V telecom power feed interface against lightning-induced surges and hot-swap transients. IC Role / Device Role / Timing Role: Reverse-polarity compatible unidirectional TVS on negative rail, referenced to chassis ground. Use Value: Withstands repeated 10/1000 µs surges up to 500 W while maintaining <1 µA leakage at -48 V standby. |
Use Scenario: Protecting isolated 15 V gate driver supply in 3-phase inverter against cross-conduction spikes and Miller-induced transients. IC Role / Device Role / Timing Role: Local clamp adjacent to gate driver IC, minimizing loop inductance for fast response. Use Value: Low Rsurge and 38.9 V clamping prevent unintended IGBT turn-on and ensure safe shoot-through margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J24A-E3/61 | Commercial-grade (non-AEC-Q101), same electrical specs and DO-214AC package. | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated. | Select when cost sensitivity outweighs automotive reliability requirements and qualification documentation is not required. |
| SMC5J24A | Same VWM/VC specs but in larger DO-214AB (SMC) package with higher thermal mass (RθJA = 35 °C/W vs. 80 °C/W). | Better sustained surge handling in high-temperature ambient; requires larger PCB footprint. | Choose when thermal derating at >85 °C ambient is critical and board space permits larger package. |
Compared with SMA5J24A-E3/61, SMA5J24HE3/61 adds AEC-Q101 qualification and whisker-tested leads (JESD 201 Class 2); versus SMC5J24A, it trades thermal performance for compact size and lower RθJL, making it optimal for automotive SMT layouts with strict area constraints.
Availability
SMA5J24HE3/61 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and telecom power feed interfaces requiring stable component supply, AEC-Q101 compliance, and high-reliability surge suppression.
Supply support for SMA5J24HE3/61 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, TVS devices, and optoelectronics with emphasis on high-reliability, high-power-density solutions.
The SMA5J series was engineered specifically for automotive and industrial transient suppression, delivering 500 W surge capability in the industry-standard DO-214AC footprint with AEC-Q101 validation and robust thermal design.
FAQ
What is the polarity configuration of SMA5J24HE3/61?
SMA5J24HE3/61 is a unidirectional TVS diode: the banded end is the cathode and must be connected to the protected line (e.g., 24 V rail), while the anode connects to ground. This configuration allows conduction only during positive transients on the cathode side - unlike bi-directional variants (e.g., SMA5J24CA) which have no marking and conduct in both directions.
Is SMA5J24HE3/61 suitable for automotive applications?
Yes, SMA5J24HE3/61 is AEC-Q101 qualified and explicitly rated for automotive use. Its construction includes glass-passivated junction, matte tin leads meeting JESD 201 Class 2 whisker testing, MSL Level 1 reflow compatibility, and operation up to +150 °C - all validated per automotive reliability standards for under-hood and chassis-mounted electronics.
What is the maximum clamping voltage for SMA5J24HE3/61 under surge conditions?
The maximum clamping voltage (VC) for SMA5J24HE3/61 is 38.9 V, measured at 12.9 A peak pulse current (IPPM) using the standardized 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during transient events and is confirmed in the Vishay datasheet Document Number 88875, page 2.
How does the HE3 suffix differ from E3 in SMA5J24HE3/61?
The HE3 suffix in SMA5J24HE3/61 indicates AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas E3 denotes commercial-grade RoHS compliance only. Both share identical electrical specs and DO-214AC packaging, but SMA5J24HE3/61 undergoes additional automotive-specific stress testing and material controls required for vehicle applications.
What PCB pad layout is recommended for optimal thermal performance of SMA5J24HE3/61?
Vishay specifies mounting SMA5J24HE3/61 on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 500 W pulse power. Smaller pads cause thermal derating; the device's RθJL = 25 °C/W assumes this minimum copper area. Thermal vias under pads further improve heat dissipation in high-ambient designs.
SMA5J24HE3/61 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:
- 1
- Bidirectional Channels:
- -
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J24HE3/61 FAQ
1.How can I place an order for SMA5J24HE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J24HE3/61 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 SMA5J24HE3/61 reliable?
The price and inventory of SMA5J24HE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J24HE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J24HE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J24HE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J24HE3/61?
SMA5J24HE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J24HE3/61 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 SMA5J24HE3/61?
For technical support, including SMA5J24HE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J24HE3/61 requirements.
6.How does Aetrix verify that SMA5J24HE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J24HE3/61 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 SMA5J24HE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J24HE3/61?
All SMA5J24HE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J24HE3/61, 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 SMA5J24HE3/61 part is unused and in its original packaging.
Return procedure for SMA5J24HE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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