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Vishay General Semiconductor - Diodes Division TPSMB24HE3/52T
- Part No.:
- TPSMB24HE3/52T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB24HE3/52T.pdf
- Description:
- TVS DIODE 19.4VWM 34.7VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,871
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Product details
Overview
TPSMB24HE3/52T from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping inductive and lightning-induced transients on power and signal lines. It features 24 V breakdown voltage (VBR = 22.8–25.2 V at IT = 1 mA), 20.5 V stand-off voltage (VWM), 33.2 V maximum clamping voltage (VC) at 18.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs and sensor interfaces in automotive ECUs.
For engineers reviewing the TPSMB24HE3/52T datasheet, TPSMB24HE3/52T pinout, TPSMB24HE3/52T application, or TPSMB24HE3/52T equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 185 °C junction temperature rating, low incremental surge resistance, and compatibility with automated SMT assembly per J-STD-002 and JESD 22-B102.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for high-temperature stability and fast response (<1 ns typical), enabling robust protection of sensitive nodes against repetitive ESD and load-dump events. Its unidirectional configuration provides forward conduction capability while clamping reverse transients above VWM.
The device operates across -65 °C to +185 °C junction temperature range and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. The HE3 suffix confirms RoHS compliance and AEC-Q101 qualification - critical for automotive powertrain and body electronics where reliability under thermal cycling is mandatory.
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 overvoltage detection |
| VWM | 20.5 V - maximum continuous reverse operating voltage before leakage rises significantly |
| VC @ IPPM | 33.2 V at 18.1 A - clamped voltage during 10/1000 µs surge, limiting stress on downstream ICs |
| PPPM | 600 W - peak transient energy absorption capacity without failure under standardized waveform |
| IFSM | 75 A - surge current handling for 8.3 ms half-sine wave, supporting load-dump immunity |
| TJ max | +185 °C - enables operation in under-hood automotive environments without derating |
| Polarity | Unidirectional - allows forward-biased operation and reverse-transient clamping in DC-biased rails |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, cathode indicated by band. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient clamp output node | Connected to protected line; conducts when reverse voltage exceeds VWM, shunting surge to ground |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane to complete clamping current path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment power rails |
| Junction passivation | Enhanced moisture resistance and long-term reliability under high-humidity, high-temperature bias conditions |
| MSL Level 1 | Compatible with standard SMT reflow profiles up to 260 °C peak, eliminating bake requirements pre-assembly |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for 3.3 V/5 V logic |
| 10/1000 µs waveform rating | Aligned with ISO 7637-2 Pulse 1 & 2 and IEC 61000-4-5 surge test standards for automotive and industrial systems |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Clamping |
|---|---|
Use Scenario: Protecting 24 V supply inputs in engine control modules against load-dump transients up to 60 V. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between rail and chassis ground to clamp surges within 1 ns. Use Value: Limits voltage seen by downstream DC-DC converters and microcontrollers to ≤33.2 V, preventing latch-up or gate oxide damage. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC analog input cards. IC Role / Device Role / Timing Role: Standoff protection element on 4–20 mA loop or 0–10 V signal line exposed to field wiring noise. Use Value: Maintains signal integrity by suppressing >20.5 V transients while adding <1 pF capacitance at 1 MHz, avoiding bandwidth degradation. |
| Consumer Power Adapter Input Stage | Telecom DC Feeder Line Surge Suppression |
Use Scenario: Secondary-side overvoltage protection in USB-C PD adapters after primary-side isolation. IC Role / Device Role / Timing Role: Fast-clamping TVS on 5–20 V output rail to absorb coupling spikes from primary-side switching noise. Use Value: Withstands 600 W pulses without degradation, ensuring adapter compliance with UL 62368-1 transient immunity requirements. |
Use Scenario: DC power feed lines (48 V) in remote radio units subjected to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-stage unidirectional suppressor mounted at board entry point before PoE controller ICs. Use Value: Clamps 10/1000 µs surges to ≤33.2 V while surviving repeated 75 A IFSM events, extending system uptime in base station deployments. |
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 IPPM = 12.1 A; SMA package (smaller footprint, lower thermal mass) | Limited to lower-energy transients; unsuitable for automotive load-dump per ISO 7637-2 Pulse 5a | Select when space-constrained and surge energy is <400 W; verify thermal derating at elevated ambient temperatures. |
| SMCJ24A | Higher PPPM = 1500 W, same VBR, larger SMC (DO-214AB) package; 30% higher IPPM (27.3 A) | Better suited for high-energy industrial mains coupling or telecom feeder protection where PCB area permits | Choose when system-level testing requires >600 W margin or when operating in >125 °C ambient environments requiring enhanced thermal dissipation. |
Compared with SMAJ24A and SMCJ24A, the TPSMB24HE3/52T delivers optimal balance of AEC-Q101 qualification, 600 W surge capacity, and SMB footprint - making it the preferred choice for automotive and high-reliability industrial designs where qualification, size, and performance must coexist.
Availability
TPSMB24HE3/52T is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor signal conditioning, and telecom DC power distribution requiring stable component supply and full traceability.
Supply support for TPSMB24HE3/52T 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, and passive components for demanding industrial and automotive applications.
The TPSMB series is engineered specifically for high-temperature transient suppression in automotive power systems and industrial equipment, emphasizing AEC-Q101 qualification, 185 °C operation, and robust surge handling in compact SMB packages.
FAQ
What is the exact breakdown voltage range for TPSMB24HE3/52T?
The TPSMB24HE3/52T has a guaranteed breakdown voltage (VBR) range of 22.8 V to 25.2 V at 1 mA test current, with a nominal value of 24.0 V. This range is measured per ANSI/IEEE C62.35 and ensures consistent clamping behavior across production lots and temperature extremes up to 150 °C.
Is TPSMB24HE3/52T qualified for automotive use?
Yes, TPSMB24HE3/52T is AEC-Q101 qualified - confirmed by the HE3 suffix per Vishay's ordering nomenclature. It is rated for operation from -65 °C to +185 °C and meets MSL Level 1, making it suitable for under-hood and body-control module applications in passenger vehicles and commercial vehicles.
What is the maximum clamping voltage of TPSMB24HE3/52T during a surge event?
The TPSMB24HE3/52T clamps to a maximum of 33.2 V when subjected to its rated peak pulse current of 18.1 A (10/1000 µs waveform). This clamping voltage is measured at the device terminals and defines the upper voltage limit imposed on protected circuitry during transient events.
Does TPSMB24HE3/52T have bidirectional capability?
No, TPSMB24HE3/52T is unidirectional only. Its electrical characteristics - including VWM, VBR, and VC - are specified for reverse-bias operation. Forward conduction follows standard diode behavior with VF = 3.5 V at 50 A, but it does not suppress positive transients on grounded lines.
What package type and mounting specifications apply to TPSMB24HE3/52T?
TPSMB24HE3/52T uses the SMB (DO-214AA) surface-mount package with matte tin-plated leads. It is compatible with J-STD-002 solderability standards and supports reflow up to 260 °C peak (MSL Level 1). Recommended pad layout matches Vishay's 0.2" × 0.2" copper pad dimensions for optimal thermal and mechanical reliability.
TPSMB24HE3/52T 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):
- 19.4V
- Voltage - Breakdown (Min):
- 21.6V
- Voltage - Clamping (Max) @ Ipp:
- 34.7V
- Current - Peak Pulse (10/1000µs):
- 17.3A
- 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 (SMB)
TPSMB24HE3/52T FAQ
1.How can I place an order for TPSMB24HE3/52T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB24HE3/52T 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 TPSMB24HE3/52T reliable?
The price and inventory of TPSMB24HE3/52T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB24HE3/52T is usually 5 days.
3.What payment methods are accepted for TPSMB24HE3/52T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB24HE3/52T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB24HE3/52T?
TPSMB24HE3/52T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB24HE3/52T 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 TPSMB24HE3/52T?
For technical support, including TPSMB24HE3/52T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB24HE3/52T requirements.
6.How does Aetrix verify that TPSMB24HE3/52T is sourced from the original manufacturer or authorized distributors?
All TPSMB24HE3/52T 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 TPSMB24HE3/52T meets industry standards.
7.What is the process for return or replacement of TPSMB24HE3/52T?
All TPSMB24HE3/52T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB24HE3/52T, 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 TPSMB24HE3/52T part is unused and in its original packaging.
Return procedure for TPSMB24HE3/52T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB24HE3/52T Tags
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