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Vishay General Semiconductor - Diodes Division TPSMA24AHE3_B/H
- Part No.:
- TPSMA24AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA24AHE3_B/H.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,373
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Product details
Overview
TPSMA24AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, rated for 24 V breakdown voltage (VBR = 22.8–25.2 V at 1 mA), 400 W peak pulse power (10/1000 µs), and 12.0 A peak pulse current (IPPM). It clamps transients to ≤33.2 V at IPPM, operates from −65 °C to +185 °C, and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the TPSMA24AHE3_B/H datasheet, TPSMA24AHE3_B/H pinout, TPSMA24AHE3_B/H application, or TPSMA24AHE3_B/H equivalent, this device is selected for robust overvoltage protection on DC power rails and signal lines where high junction temperature capability (TJ = 185 °C), low clamping voltage, and AEC-Q101 qualification are required.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with optimized junction passivation for stable performance under high-temperature stress. Its unidirectional polarity enables protection of positive-rail circuits without reverse conduction during normal operation.
The device delivers 400 W peak pulse power per 10/1000 µs waveform with 0.01 % duty cycle, and exhibits very fast response time (<1 ns) and low incremental surge resistance - critical for suppressing ESD and lightning-induced transients before sensitive downstream components are damaged.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 22.8 V / 24.0 V / 25.2 V at 1 mA - defines precise clamping onset threshold for reliable overvoltage detection |
| VWM | 20.5 V - maximum continuous working voltage; ensures no leakage or conduction during normal 24 V rail operation |
| VC @ IPPM | ≤33.2 V at 12.0 A - clamping voltage limits stress on protected ICs or MOSFETs during surge events |
| PPPM | 400 W (10/1000 µs) - supports high-energy transient suppression without thermal failure under standard test conditions |
| TJ max. | +185 °C - enables use in under-hood automotive environments and high-power industrial enclosures |
| AEC-Q101 | Qualified - meets stress testing requirements for automotive-grade reliability including temperature cycling and HTRB |
| Package | SMA (DO-214AC) - industry-standard SMD outline with 0.208" x 0.157" footprint and matte tin-plated leads |
Pinout & Package
TPSMA24AHE3_B/H is housed in an SMA (DO-214AC) surface-mount package with cathode indicated by a color band. The device has two terminals: anode and cathode, mounted on PCB copper pads (0.2" × 0.2") per JEDEC standards.
| 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/ground return path | Typically tied to system ground; completes clamping path during overvoltage event |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier design ensures stable VBR drift <±5 % over 1000 hrs at 150 °C |
| High-temperature operation | Rated for continuous operation up to +185 °C junction temperature - suitable for engine control units and power inverters |
| Clamping performance | Low VC/VBR ratio (1.38) minimizes voltage overshoot during fast transients |
| Reliability qualification | AEC-Q101 qualified with MSL Level 1 rating (260 °C reflow compatible) and JESD201 Class 2 whisker resistance |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs in body control modules (BCM), lighting drivers, and ADAS camera modules from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between power input and local regulator or microcontroller. Use Value: Clamps 12 V/24 V rail surges to ≤33.2 V within nanoseconds, preventing latch-up or gate oxide damage in downstream PMICs and MCUs. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature, current sense) in factory automation PLCs and motor drives against ESD and cable discharge events. IC Role / Device Role / Timing Role: Signal-line TVS placed directly at connector entry point before op-amp or ADC input stage. Use Value: Limits transient voltage to <33.2 V while maintaining <1 µA leakage at 20.5 V, preserving signal integrity and measurement accuracy. |
| Telecom DC Power Input Protection | Consumer Device USB/DC Jack Protection |
Use Scenario: Guarding 24 V/48 V PoE-powered equipment (e.g., IP cameras, wireless access points) against induced surges from nearby lightning strikes or AC coupling. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC input rail upstream of DC-DC converter. Use Value: Withstands 400 W peak pulse energy and maintains stable clamping across −40 °C to +125 °C ambient, ensuring field reliability. | Use Scenario: Protecting DC input jacks in portable medical monitors, smart home hubs, and gaming peripherals from user-handling ESD and adapter misconnection events. IC Role / Device Role / Timing Role: Standalone TVS on main power entry, co-located with fuse or polyfuse for coordinated overcurrent/overvoltage defense. Use Value: RoHS-compliant and halogen-free (HE3 suffix), with 185 °C TJ rating enabling compact layout in thermally constrained enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A | Same VBR range (22.8–25.2 V) but SMB package (DO-214AA); 600 W PPPM; larger footprint (0.236" × 0.157") | Higher power handling but requires more PCB area; not drop-in compatible due to different pad layout | Select when higher surge margin is needed and board space allows SMB footprint |
| 1.5KE24A | Through-hole DO-201 package; same VBR and PPPM; leaded construction; no AEC-Q101 qualification | Not suitable for automated SMT assembly or automotive under-hood use; limited thermal cycling endurance | Choose only for legacy through-hole designs or non-automotive prototyping |
Compared with SMBJ24A and 1.5KE24A, the TPSMA24AHE3_B/H offers optimal balance of AEC-Q101 qualification, compact SMA footprint, and verified 185 °C operation - making it the preferred choice for new automotive and high-reliability industrial SMT designs requiring validated long-term stability.
Availability
TPSMA24AHE3_B/H is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and telecom DC input protection requiring stable component supply, AEC-Q101 compliance, and high-temperature operational assurance.
Supply support for TPSMA24AHE3_B/H 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 reliability, high-temperature performance, and automotive qualification.
The TPSMA24AHE3_B/H belongs to Vishay's PAR® (Protection and Regulation) family of transient voltage suppressors, engineered specifically for robust overvoltage protection in harsh-environment applications including automotive, industrial controls, and telecommunications infrastructure.
FAQ
What is the breakdown voltage tolerance for TPSMA24AHE3_B/H?
The TPSMA24AHE3_B/H has a guaranteed breakdown voltage range of 22.8 V to 25.2 V at 1 mA test current, corresponding to ±5 % tolerance around the nominal 24 V rating. This tight VBR distribution ensures consistent clamping behavior across production lots and supports predictable circuit protection design without derating overhead.
Is TPSMA24AHE3_B/H suitable for automotive under-hood applications?
Yes, TPSMA24AHE3_B/H is AEC-Q101 qualified and rated for continuous operation up to +185 °C junction temperature. Its passivated anisotropic rectifier structure, MSL Level 1 reflow compatibility, and JESD201 Class 2 whisker resistance make it suitable for engine control units, transmission control modules, and other under-hood automotive systems where thermal and mechanical stress are severe.
What is the maximum clamping voltage of TPSMA24AHE3_B/H at its rated peak pulse current?
The maximum clamping voltage (VC) of TPSMA24AHE3_B/H is 33.2 V when subjected to its rated 12.0 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that protected downstream components experience no more than 33.2 V during worst-case surge events.
Does TPSMA24AHE3_B/H have RoHS and halogen-free compliance?
Yes, the HE3 suffix in TPSMA24AHE3_B/H indicates RoHS-compliant construction. While the HE3 variant is RoHS-compliant and AEC-Q101 qualified, it is not explicitly halogen-free; for halogen-free compliance, the HM3 suffix variant (e.g., TPSMA24AHM3_B/H) must be selected per Vishay's ordering nomenclature.
How does the thermal derating of TPSMA24AHE3_B/H work above 25 °C ambient?
TPSMA24AHE3_B/H peak pulse power (PPPM) is derated linearly above 25 °C ambient per Figure 2 in the datasheet: at 100 °C ambient, PPPM drops to ~65 % of 400 W (~260 W); at 150 °C, it falls to ~35 % (~140 W). Derating ensures safe operation within the 185 °C maximum junction temperature limit under sustained thermal stress.
TPSMA24AHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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_B/H FAQ
1.How can I place an order for TPSMA24AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA24AHE3_B/H 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_B/H reliable?
The price and inventory of TPSMA24AHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA24AHE3_B/H is usually 5 days.
3.What payment methods are accepted for TPSMA24AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA24AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA24AHE3_B/H?
TPSMA24AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA24AHE3_B/H 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_B/H?
For technical support, including TPSMA24AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA24AHE3_B/H requirements.
6.How does Aetrix verify that TPSMA24AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All TPSMA24AHE3_B/H 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_B/H meets industry standards.
7.What is the process for return or replacement of TPSMA24AHE3_B/H?
All TPSMA24AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA24AHE3_B/H, 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_B/H part is unused and in its original packaging.
Return procedure for TPSMA24AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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