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Vishay General Semiconductor - Diodes Division TPSMA24AHE3_A/I
- Part No.:
- TPSMA24AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA24AHE3_A/I.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,006
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Product details
Overview
TPSMA24AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features 24.0 V nominal breakdown voltage (VBR), 33.2 V maximum clamping voltage (VC) at 12.0 A peak pulse current, 400 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - used in automotive sensor protection and industrial power rail surge suppression.
For engineers reviewing the TPSMA24AHE3_A/I datasheet, TPSMA24AHE3_A/I pinout, TPSMA24AHE3_A/I application, or TPSMA24AHE3_A/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal derating behavior, clamping performance under surge conditions, and RoHS-compliant packaging details specific to the HE3 suffix variant.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for high-reliability transient suppression. Its unidirectional polarity enables forward-biased operation during overvoltage events on DC rails, with low incremental surge resistance ensuring stable clamping across repetitive 10/1000 µs pulses at 0.01% duty cycle.
The device achieves TJ = 185 °C capability and meets MSL Level 1 per J-STD-020 (260 °C peak reflow), supporting automotive-grade assembly. Its 0.085 %/°C temperature coefficient of VBR allows predictable breakdown shift over temperature, critical for precision rail protection in engine control units and ADAS modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 22.8 V / 24.0 V / 25.2 V at 1.0 mA - defines precise voltage threshold where clamping initiates under controlled test conditions |
| VWM | 20.5 V - maximum continuous reverse working voltage before leakage exceeds 1.0 µA, setting safe DC operating margin |
| VC @ IPPM | 33.2 V at 12.0 A - clamped voltage during 400 W transient, directly limiting downstream IC stress |
| PPPM | 400 W (10/1000 µs waveform) - peak surge energy handling capacity without failure under standardized lightning-like pulses |
| TJ max. | +185 °C - enables use in under-hood automotive environments and high-temperature industrial enclosures without derating |
| AEC-Q101 Qualified | Yes - validated for automotive electronic systems per stress test requirements including HTGB, HTRB, and temperature cycling |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with 0.208" x 0.157" footprint and matte tin-plated leads |
Pinout & Package
SMA (DO-214AC) package: molded epoxy case meeting UL 94 V-0 flammability rating; cathode indicated by color band; terminals are matte tin plated, solderable per J-STD-002 and JESD 22-B102; meets JESD 201 Class 2 whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR |
| Anode | Reference/return path | Typically tied to system ground or lower-potential rail; completes conduction path during clamping event |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier structure ensures stable VBR and low leakage (<1 µA at VWM) over lifetime and temperature |
| High-temperature operation | TJ = 185 °C rating supports placement near heat sources (e.g., power converters) without thermal derating penalties |
| Fast response time | Sub-nanosecond turn-on enables clamping before sensitive ICs experience overvoltage damage |
| Low incremental surge resistance | Minimizes VC rise under high-current transients, preserving margin between clamped voltage and IC absolute maximum ratings |
| RoHS & halogen-free compliance | HE3 suffix denotes RoHS-compliant construction; meets automotive material restrictions (J-STD-609 Class 2a) |
Applications
| Automotive Sensor Protection | Industrial Power Rail Clamping |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp transients before they reach input ESD structures of interface ICs. Use Value: With VC = 33.2 V and 400 W rating, TPSMA24AHE3_A/I limits voltage seen by 3.3 V/5 V/12 V sensor ICs to safe levels during 12 V system surges. |
Use Scenario: Safeguarding 24 V DC power inputs in PLC modules, motor drives, and programmable logic controllers against switching transients and inductive kickback. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main supply rail, positioned upstream of DC-DC converters and microcontrollers. Use Value: 20.5 V VWM provides 15% margin above nominal 24 V rail while enabling fast clamping at 33.2 V - preventing brownout or latch-up in downstream regulators. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Surge protection on Ethernet PHY power pins (e.g., MDI power delivery) and auxiliary bias rails in base station RF modules. IC Role / Device Role / Timing Role: Standoff protector on isolated DC bias lines subject to induced lightning surges per IEC 61000-4-5. Use Value: AEC-Q101 qualification and 185 °C capability ensure reliability in outdoor telecom cabinets exposed to wide ambient temperature swings. |
Use Scenario: Secondary-side overvoltage clamp on 19–24 V output rails of laptop and monitor AC/DC adapters subjected to output short-circuit recovery spikes. IC Role / Device Role / Timing Role: Fast-reacting shunt element that diverts transient energy away from output capacitors and load regulation circuitry. Use Value: 12.0 A IPPM and 33.2 V VC allow robust handling of 400 W adapter output transients without degradation after repeated events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24AHE3_A/H | Same VBR (24.0 V) and VC (38.9 V), but SMB package (DO-214AA); 600 W PPPM; higher IPPM (15.4 A) | Larger footprint (0.236" × 0.157") and 50% higher surge rating - suited for higher-energy industrial mains interfaces | Select when board space permits larger package and higher surge immunity is required beyond 400 W |
| TPSMA24AHM3_A/I | Identical electrical specs and SMA package; HM3 suffix adds halogen-free construction (vs. HE3's RoHS-only) | No functional difference; HM3 meets stricter automotive material compliance (J-STD-609 Class 2a) | Choose HM3 for halogen-free requirement in Tier 1 automotive BOMs; otherwise HE3 satisfies standard RoHS and AEC-Q101 needs |
Compared with SMBJ24AHE3_A/H and TPSMA24AHM3_A/I, the TPSMA24AHE3_A/I offers optimal balance of compact SMA footprint, AEC-Q101 qualification, and 400 W surge capability - making it ideal for space-constrained automotive and industrial PCBs where halogen-free is not mandated.
Availability
TPSMA24AHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor protection, industrial power rail clamping, and telecom line interface applications requiring stable component supply, AEC-Q101 validation, and high-temperature operational integrity.
Supply support for TPSMA24AHE3_A/I 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 TVS devices with emphasis on reliability, thermal performance, and automotive qualification.
The TPSMA24AHE3_A/I belongs to Vishay's PAR® series of surface-mount TVS diodes, engineered specifically for high-temperature, high-reliability transient suppression in automotive and industrial environments where long-term stability under thermal stress is critical.
FAQ
What is the breakdown voltage tolerance for TPSMA24AHE3_A/I?
The TPSMA24AHE3_A/I has a guaranteed breakdown voltage range of 22.8 V to 25.2 V at 1.0 mA test current, with 24.0 V as the nominal value. This ±5% tolerance ensures consistent clamping initiation across production lots and supports reliable design margining against downstream IC absolute maximum ratings in automotive and industrial applications.
Is TPSMA24AHE3_A/I qualified for automotive use?
Yes, TPSMA24AHE3_A/I is AEC-Q101 qualified - verified per stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling. The HE3 suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified construction, making TPSMA24AHE3_A/I suitable for engine control, body electronics, and ADAS subsystems.
What does the "HE3" suffix mean in TPSMA24AHE3_A/I?
The "HE3" suffix in TPSMA24AHE3_A/I indicates RoHS-compliant construction and AEC-Q101 qualification. It also specifies tape-and-reel packaging: "A" is the revision code, "I" denotes 13-inch diameter reel with 7500-unit quantity. This distinguishes it from HM3 (halogen-free + AEC-Q101) and non-qualified base part numbers.
How does TPSMA24AHE3_A/I perform at elevated temperatures?
TPSMA24AHE3_A/I maintains full functionality up to +185 °C junction temperature. Its VBR shifts predictably with temperature (+0.085 %/°C), allowing accurate clamping voltage calculation across operating ranges. Derating curves in the datasheet confirm usable 400 W pulse power capability up to +150 °C ambient when mounted per recommended pad layout.
What is the maximum clamping voltage of TPSMA24AHE3_A/I under surge conditions?
The maximum clamping voltage of TPSMA24AHE3_A/I is 33.2 V at 12.0 A peak pulse current (IPPM) using the 10/1000 µs waveform. This value is measured under standardized test conditions and represents the highest voltage the device allows across its terminals during a 400 W transient - a key parameter for ensuring downstream ICs remain within safe operating limits.
TPSMA24AHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- 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):
- 12A
- Power - Peak Pulse:
- 400W
- 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-214AC (SMA)
TPSMA24AHE3_A/I FAQ
1.How can I place an order for TPSMA24AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA24AHE3_A/I 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 TPSMA24AHE3_A/I reliable?
The price and inventory of TPSMA24AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA24AHE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMA24AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA24AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA24AHE3_A/I?
TPSMA24AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA24AHE3_A/I 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 TPSMA24AHE3_A/I?
For technical support, including TPSMA24AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA24AHE3_A/I requirements.
6.How does Aetrix verify that TPSMA24AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMA24AHE3_A/I 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 TPSMA24AHE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMA24AHE3_A/I?
All TPSMA24AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA24AHE3_A/I, 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 TPSMA24AHE3_A/I part is unused and in its original packaging.
Return procedure for TPSMA24AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA24AHE3_A/I Tags
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