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Vishay General Semiconductor - Diodes Division TPSMB24AHE3/52T
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- Part No.:
- TPSMB24AHE3/52T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB24AHE3/52T.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,130
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Product details
Overview
TPSMB24AHE3/52T from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching surges and lightning-induced transients on power rails and signal lines. It features a 24 V nominal breakdown voltage (VBR = 22.8–25.2 V at 1 mA), 20.5 V stand-off voltage (VWM), 33.2 V maximum clamping voltage at 18.1 A peak pulse current, 600 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - deployed in automotive power supply protection and industrial sensor interface circuits.
For engineers reviewing the TPSMB24AHE3/52T datasheet, TPSMB24AHE3/52T pinout, TPSMB24AHE3/52T application, or TPSMB24AHE3/52T equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, TJ = 185 °C thermal rating, and verified clamping performance under repetitive 10/1000 µs surge conditions.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for high-temperature stability and low incremental surge resistance. Its junction passivation enables reliable operation at TJ = 185 °C and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak.
The device delivers precise clamping with 33.2 V VC at IPPM = 18.1 A (10/1000 µs), exhibits <1 μA reverse leakage at VWM = 20.5 V (TA = 25 °C), and maintains stable VBR across temperature via αT = 0.085 %/°C coefficient - critical for automotive-grade ECU and ADAS power rail protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 22.8 / 24.0 / 25.2 V at 1 mA - defines precise voltage threshold where avalanche conduction begins under transient stress |
| VWM | 20.5 V - maximum continuous reverse operating voltage before significant leakage occurs |
| VC @ IPPM | 33.2 V at 18.1 A (10/1000 µs) - actual clamped voltage seen by protected IC during worst-case surge |
| PPPM | 600 W - peak transient energy absorption capability without failure under standardized waveform |
| TJ max. | +185 °C - enables use in under-hood automotive environments and high-power industrial enclosures |
| Polarity | Unidirectional - protects against positive-going transients only; cathode marked with band |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 0.220" x 0.130" footprint and 0.096 g unit weight |
Pinout & Package
TPSMB24AHE3/52T uses the SMB (DO-214AA) package: molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, and cathode indicated by a color band. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal per JEDEC standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts avalanche current to ground during overvoltage events |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane to complete clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements including HTOL, TC, and HAST |
| Junction passivation | Enables stable 185 °C operation and long-term reliability under thermal cycling and humidity exposure |
| 600 W peak pulse power | Withstands repeated 10/1000 µs surges at 0.01% duty cycle without degradation in clamping performance |
| Low clamping ratio (VC/VBR) | 1.38 - ensures minimal overvoltage margin between breakdown and clamping, protecting downstream MOSFETs and ICs |
| MSL Level 1 | Zero floor life limitation; supports standard SMT reflow up to 260 °C peak without baking |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 24 V CAN bus power supplies and LIN transceivers from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND to clamp transients above 24 V. Use Value: Prevents latch-up or permanent damage to automotive-grade microcontrollers and communication ICs during ISO 7637-2 Pulse 5a events. |
Use Scenario: Shielding analog output lines of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Standoff-rated TVS on 4–20 mA current loop outputs to absorb ESD and inductive kickback. Use Value: Maintains signal integrity below 20.5 V VWM, ensuring uninterrupted sensor data transmission during 4 kV contact ESD events. |
| Consumer Power Adapter Input | Telecom DC Power Distribution |
Use Scenario: Secondary-side surge suppression in universal input AC/DC adapters for smart home hubs. IC Role / Device Role / Timing Role: Clamping component on 12 V/24 V DC output rails subjected to lightning-induced surges. Use Value: Limits transient overshoot to ≤33.2 V, safeguarding buck converters and USB-PD controllers without derating. |
Use Scenario: Overvoltage protection on -48 V DC telecom rack power feeds feeding baseband units. IC Role / Device Role / Timing Role: Unidirectional TVS connected between -48 V rail and chassis ground to absorb negative-going transients. Use Value: Withstands 75 A IFSM surge and maintains clamping within spec after repeated 10/1000 µs pulses per GR-1089-CORE. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Same VBR range (22.8–25.2 V), but lower PPPM = 400 W and VC = 38.9 V at 10.3 A; SMA package (smaller thermal mass) | Limited to lower-energy transients; not AEC-Q101 qualified; unsuitable for automotive under-hood use | Select when cost sensitivity outweighs automotive qualification and higher surge robustness is unnecessary |
| SMCJ24A | Higher PPPM = 1500 W, same VBR, VC = 38.9 V at 38.9 A; larger SMC (DO-214AB) package | Supports heavier industrial surge standards (IEC 61000-4-5 Level 4); requires more PCB area and thermal relief | Choose when system-level testing demands >600 W surge handling and board space permits SMC footprint |
Compared with SMAJ24A and SMCJ24A, TPSMB24AHE3/52T uniquely balances AEC-Q101 qualification, 600 W surge capacity, SMB footprint, and 185 °C operation - making it optimal for space-constrained automotive and industrial designs requiring validated reliability without over-engineering.
Availability
TPSMB24AHE3/52T is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, consumer power adapters, and telecom DC distribution systems requiring stable component supply and full traceability.
Supply support for TPSMB24AHE3/52T 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for demanding industrial and automotive applications.
The TPSMB24AHE3/52T belongs to Vishay's PAR® TVS family - engineered specifically for high-temperature, high-surge environments where AEC-Q101 compliance and consistent clamping performance are mandatory.
FAQ
What is the exact breakdown voltage range for TPSMB24AHE3/52T?
The TPSMB24AHE3/52T has a guaranteed breakdown voltage range of 22.8 V to 25.2 V at 1 mA test current (VBR), measured per ANSI/IEEE C62.35 standards. This range reflects manufacturing tolerance and ensures reliable turn-on behavior across production lots while maintaining compatibility with 24 V system margins.
Is TPSMB24AHE3/52T qualified for automotive applications?
Yes, TPSMB24AHE3/52T is AEC-Q101 qualified - confirmed in the Vishay datasheet (Document Number 88406, Revision 23-Jan-2024). The HE3 suffix denotes RoHS-compliant and AEC-Q101 qualified construction, validated for use in automotive powertrain, body control, and ADAS modules.
What does the "HE3/52T" suffix indicate in TPSMB24AHE3/52T?
The "HE3" denotes Vishay's RoHS-compliant, AEC-Q101 qualified variant with matte tin-plated leads and JESD 201 Class 2 whisker resistance. "52T" specifies the packaging: 7" diameter tape-and-reel with 750 units per reel, per Vishay's ordering convention for SMB devices.
Can TPSMB24AHE3/52T replace TPSMB24AHE3/A?
TPSMB24AHE3/52T and TPSMB24AHE3/A share identical electrical specifications, package, and qualification. The "52T" and "A" suffixes denote different reel configurations (750 vs. unspecified quantity) and revision codes - both are functionally interchangeable in design and production.
What is the maximum clamping voltage of TPSMB24AHE3/52T under surge conditions?
The TPSMB24AHE3/52T clamps to a maximum of 33.2 V when subjected to its rated 18.1 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per Figure 1 in the datasheet and defines the upper voltage limit imposed on protected circuitry during transient events.
TPSMB24AHE3/52T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- 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):
- 18.1A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMBJ)
TPSMB24AHE3/52T FAQ
1.How can I place an order for TPSMB24AHE3/52T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB24AHE3/52T 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 TPSMB24AHE3/52T reliable?
The price and inventory of TPSMB24AHE3/52T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB24AHE3/52T is usually 5 days.
3.What payment methods are accepted for TPSMB24AHE3/52T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB24AHE3/52T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB24AHE3/52T?
TPSMB24AHE3/52T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB24AHE3/52T 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 TPSMB24AHE3/52T?
For technical support, including TPSMB24AHE3/52T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB24AHE3/52T requirements.
6.How does Aetrix verify that TPSMB24AHE3/52T is sourced from the original manufacturer or authorized distributors?
All TPSMB24AHE3/52T 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 TPSMB24AHE3/52T meets industry standards.
7.What is the process for return or replacement of TPSMB24AHE3/52T?
All TPSMB24AHE3/52T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB24AHE3/52T, 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 TPSMB24AHE3/52T part is unused and in its original packaging.
Return procedure for TPSMB24AHE3/52T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB24AHE3/52T Tags
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