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Vishay General Semiconductor - Diodes Division TPSMC24AHE3/57T
- Part No.:
- TPSMC24AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC24AHE3/57T.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,959
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Product details
Overview
TPSMC24AHE3/57T from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on power and signal lines. It features a 24.0 V nominal breakdown voltage (VBR), 20.5 V stand-off voltage (VWM), 1500 W peak pulse power (10/1000 μs), 45.2 A peak pulse current (IPPM), and 33.2 V maximum clamping voltage (VC) - deployed in automotive sensor protection and industrial power supply input stages.
For engineers reviewing the TPSMC24AHE3/57T datasheet, TPSMC24AHE3/57T pinout, TPSMC24AHE3/57T application, or TPSMC24AHE3/57T equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 185 °C junction temperature rating, low incremental surge resistance, and compatibility with high-reliability PCB layouts using 8.0 mm × 8.0 mm copper pads per terminal.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping under repetitive surge stress. Its 185 °C maximum junction temperature enables operation in under-hood automotive environments and high-temperature industrial enclosures without derating penalties up to ambient 150 °C.
The device responds within picoseconds to transients and maintains low dynamic impedance during 10/1000 μs surges. Its 33.2 V clamping voltage at 45.2 A ensures MOSFET gate drivers and microcontroller I/O pins remain below absolute maximum ratings during ISO 7637-2 Pulse 1/2a/5a events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 22.8 / 24.0 / 25.2 V - defines minimum voltage at which device enters avalanche conduction; used to set margin above system operating voltage |
| VWM | 20.5 V - maximum continuous reverse working voltage; must exceed peak steady-state line voltage to prevent leakage-induced heating |
| VC @ IPPM | 33.2 V - clamped voltage seen by protected circuit during 45.2 A surge; determines whether downstream ICs stay within safe operating area |
| PPPM | 1500 W - peak pulse power handling with 10/1000 μs waveform; validates robustness against load dump and inductive switching events |
| TJ max. | +185 °C - enables use in AEC-Q101-compliant automotive modules without thermal derating in engine control units |
| Polarity | Unidirectional - protects only against positive transients relative to cathode; requires correct orientation in DC-biased circuits |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 0.320" length and 0.246" width; supports automated placement and reflow |
Pinout & Package
TPSMC24AHE3/57T uses the SMC (DO-214AB) package: molded epoxy case with matte tin-plated leads, cathode indicated by a color band, and terminals rated for soldering per J-STD-002 and JESD 22-B102. Molding compound meets UL 94 V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | High-side connection point for unidirectional clamping | Connected to the line being protected (e.g., +12 V rail); conducts avalanche current to ground when transient exceeds VBR |
| Anode | Low-side reference terminal | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for engine control, ADAS, and body electronics |
| 1500 W peak pulse power (10/1000 μs) | Withstands severe load dump and alternator ripple events per ISO 16750-2 without degradation |
| 33.2 V clamping at 45.2 A | Ensures protected 24 V systems (e.g., CAN transceivers, LIN controllers) remain below 36 V absolute maximum ratings |
| 185 °C junction temperature rating | Eliminates need for thermal derating in under-hood applications up to +125 °C ambient |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 24 V power inputs of engine control units (ECUs) against ISO 7637-2 Pulse 5a load dump transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and DC-DC converter input. Use Value: Limits transient voltage to ≤33.2 V, preventing damage to upstream PMICs and ensuring uninterrupted MCU operation. |
Use Scenario: Shielding analog output lines of pressure sensors in factory automation systems from ESD and inductive coupling. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector interface before signal conditioning amplifier. Use Value: Sub-1 ns response time and 33.2 V clamping preserve 4–20 mA loop integrity and avoid ADC saturation during 8 kV contact ESD. |
| Telecom DC Power Input Stage | Computer Peripheral USB VBUS Protection |
Use Scenario: Safeguarding -48 V telecom rectifier outputs from lightning-induced surges on distribution bus. IC Role / Device Role / Timing Role: Unidirectional TVS connected between -48 V rail and chassis ground in redundant power shelf. Use Value: 1500 W pulse rating absorbs multiple 10/1000 μs surges without parameter shift, maintaining system uptime. |
Use Scenario: Adding secondary overvoltage protection on USB 3.0 VBUS lines in docking stations exposed to hot-plug transients. IC Role / Device Role / Timing Role: TVS placed after primary fuse and upstream of USB switch IC. Use Value: 20.5 V VWM allows normal 5 V operation while clamping >6 V faults to 33.2 V - well below USB IC's 6.5 V abs max. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Lower PPPM (400 W), same VBR (24.0 V), SMA package (smaller thermal mass) | Not AEC-Q101 qualified; limited to commercial-grade consumer/industrial use | Select when cost and board space are prioritized over automotive reliability and 1500 W surge capability |
| TPSMC24AHM3/57T | Identical electrical specs; halogen-free molding compound and JESD 201 Class 2 whisker resistance | Required for RoHS+halogen-free compliance in EU automotive Tier 1 BOMs | Choose when material compliance (not just AEC-Q101) drives specification - no performance trade-off |
Compared with SMAJ24A and TPSMC24AHM3/57T, the TPSMC24AHE3/57T delivers full AEC-Q101 qualification and 1500 W surge immunity in the SMC package, making it the preferred choice for automotive power rails where both reliability and energy absorption are critical - whereas SMAJ24A suits cost-sensitive non-automotive designs, and TPSMC24AHM3/57T adds halogen-free compliance without altering electrical behavior.
Availability
TPSMC24AHE3/57T is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, and telecom power supplies requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for TPSMC24AHE3/57T 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, and automotive-qualified components.
The TPSMC24AHE3/57T belongs to Vishay's PAR® series of high-power TVS diodes, engineered specifically for robust transient suppression in harsh-environment applications including automotive power distribution and industrial control systems.
FAQ
What is the clamping voltage of the TPSMC24AHE3/57T at its rated peak pulse current?
The TPSMC24AHE3/57T has a maximum clamping voltage (VC) of 33.2 V when subjected to its rated peak pulse current of 45.2 A under a 10/1000 μs waveform. This value is measured per JEDEC standards and ensures protected circuits remain within safe voltage limits during surge events. The TPSMC24AHE3/57T achieves this clamping performance while maintaining low dynamic impedance and minimal voltage overshoot.
Is the TPSMC24AHE3/57T qualified for automotive applications?
Yes, the TPSMC24AHE3/57T is AEC-Q101 qualified, as confirmed in Vishay's official documentation (Document Number: 88407). This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD, validating its suitability for automotive powertrain, body, and ADAS systems. The TPSMC24AHE3/57T also supports operation up to +185 °C junction temperature, meeting under-hood thermal requirements.
What does the "HE3" suffix indicate in TPSMC24AHE3/57T?
The "HE3" suffix in TPSMC24AHE3/57T denotes a RoHS-compliant, AEC-Q101-qualified variant with matte tin-plated leads and compliance with JESD 201 Class 2 whisker resistance. The "57T" indicates tape-and-reel packaging in 13-inch reels (3500 units per reel), per Vishay's ordering nomenclature. This distinguishes it from HM3 (halogen-free) and non-qualified base variants.
How does the TPSMC24AHE3/57T compare to bidirectional TVS diodes in circuit design?
The TPSMC24AHE3/57T is unidirectional and must be oriented with cathode toward the positive rail - unlike bidirectional types that protect both polarities. This makes it ideal for DC-biased lines like 24 V automotive supplies, where reverse conduction is unnecessary and lower leakage at VWM (1.0 μA) improves efficiency. The TPSMC24AHE3/57T offers higher surge capability than most bidirectional equivalents in the same package.
What PCB layout guidance applies to the TPSMC24AHE3/57T for optimal surge performance?
Vishay specifies mounting the TPSMC24AHE3/57T on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads at each terminal to achieve rated 1500 W pulse power. Minimizing trace inductance between the device and protected node is critical - short, wide traces and direct grounding reduce voltage overshoot. The TPSMC24AHE3/57T's SMC footprint supports this via low-inductance thermal pad connections and standardized land patterns.
TPSMC24AHE3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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):
- 45.2A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
TPSMC24AHE3/57T FAQ
1.How can I place an order for TPSMC24AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC24AHE3/57T 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 TPSMC24AHE3/57T reliable?
The price and inventory of TPSMC24AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC24AHE3/57T is usually 5 days.
3.What payment methods are accepted for TPSMC24AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC24AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC24AHE3/57T?
TPSMC24AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC24AHE3/57T 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 TPSMC24AHE3/57T?
For technical support, including TPSMC24AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC24AHE3/57T requirements.
6.How does Aetrix verify that TPSMC24AHE3/57T is sourced from the original manufacturer or authorized distributors?
All TPSMC24AHE3/57T 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 TPSMC24AHE3/57T meets industry standards.
7.What is the process for return or replacement of TPSMC24AHE3/57T?
All TPSMC24AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC24AHE3/57T, 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 TPSMC24AHE3/57T part is unused and in its original packaging.
Return procedure for TPSMC24AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC24AHE3/57T Tags
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