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Vishay General Semiconductor - Diodes Division TPSMB24A-1BHE3/5BT
- Part No.:
- TPSMB24A-1BHE3/5BT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB24A-1BHE3/5BT.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPSMB24A-1BHE3/5BT from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode designed for clamping inductive switching surges and lightning-induced transients on power rails and signal lines. It features a 24.0 V nominal breakdown voltage (VBR), 20.5 V maximum standoff voltage (VWM), 33.2 V 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 TPSMB24A-1BHE3/5BT datasheet, TPSMB24A-1BHE3/5BT pinout, TPSMB24A-1BHE3/5BT application, or TPSMB24A-1BHE3/5BT equivalent, this page delivers verified electrical parameters, SMB (DO-214AA) package mapping, cathode/anode terminal roles, AEC-Q101 qualification status, and direct alternative part comparisons grounded in Vishay's official specifications.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping under high-temperature stress (TJ = 185 °C), with low incremental surge resistance and sub-nanosecond response time. Its unidirectional polarity and 10/1000 µs waveform-rated 600 W peak pulse power enable robust protection of downstream MOSFETs and ICs against repetitive transients in automotive ECUs and industrial motor drives.
The device meets MSL Level 1 per J-STD-020 (260 °C peak reflow), features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and carries the HE3 suffix indicating RoHS compliance and AEC-Q101 qualification - confirmed in Vishay Document #88406, Rev. 23-Jan-2024.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 22.8 V / 24.0 V / 25.2 V - ensures reliable conduction onset above system operating voltage while avoiding false triggering |
| VWM | 20.5 V - maximum continuous reverse voltage before leakage exceeds 1 µA, compatible with 24 V nominal systems |
| VC @ IPPM | 33.2 V - clamped voltage during 18.1 A transient, limiting stress on protected 36 V-rated components |
| PPPM | 600 W - peak pulse power handling capability under standard 10/1000 µs waveform, sufficient for ISO 7637-2 Pulse 1/2a/5a |
| IFSM | 75 A - surge current rating for 8.3 ms half-sine wave, supporting high-energy inductive kickback suppression |
| TJ max. | +185 °C - enables operation in under-hood automotive environments without derating |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 0.220" x 0.130" footprint and thermal pad compatibility |
Pinout & Package
TPSMB24A-1BHE3/5BT is housed in the SMB (DO-214AA) package: a molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, and cathode indicated by a color band. Dimensions are 0.220" × 0.130" (5.59 mm × 3.30 mm), with recommended 0.2" × 0.2" copper pads per terminal for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected circuit's positive rail; conducts surge current to ground when VIN exceeds VBR |
| Anode | Reference/ground return path | Typically tied to system ground plane; completes clamping loop with minimal inductance for fast response |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD22-A114 |
| Junction passivation | Reduces surface leakage and improves long-term stability under humidity and bias stress |
| MSL Level 1 | Zero floor life limitation; supports standard SMT reflow up to 260 °C peak without baking |
| Low clamping ratio (VC/VBR) | 1.38 - tight voltage margin between breakdown and clamping, minimizing overvoltage exposure to protected ICs |
| 0.01 % duty cycle rating | Enables repetitive surge handling in motor control gate drivers and solenoid drivers without thermal runaway |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Clamping |
|---|---|
|
Use Scenario: Protecting 24 V power inputs in engine control units (ECUs) and body control modules (BCMs) against load dump and ISO 7637-2 transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and DC-DC input, clamping surges within 1 ns. Use Value: Maintains VC ≤ 33.2 V during 18.1 A transients, preventing damage to 36 V-rated LDOs and microcontrollers. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in PLC I/O modules exposed to field wiring transients. IC Role / Device Role / Timing Role: Low-capacitance TVS on 4–20 mA or 0–10 V output lines, shunting EFT bursts before reaching op-amp buffers. Use Value: 1 µA leakage at 20.5 V VWM avoids signal offset errors; 185 °C rating supports operation near hot industrial enclosures. |
| Telecom DC Power Feeding | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Securing -48 V DC feeding lines in remote radio head (RRH) power supplies against lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS mounted at PSE port entry, clamping common-mode transients on telecom power pairs. Use Value: 600 W peak power rating handles IEC 61000-4-5 Level 4 surges (4 kV/2 Ω); HE3 suffix confirms RoHS and AEC-Q101 compliance for telco infrastructure. |
Use Scenario: Shielding BLDC motor driver ICs in smart washing machines from back-EMF spikes during commutation. IC Role / Device Role / Timing Role: TVS across half-bridge supply rails, absorbing inductive energy from motor windings during PWM switching. Use Value: 75 A IFSM withstands repeated 8.3 ms surges; SMB package allows dense layout near gate drivers without thermal crowding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A (onsemi) | Same VBR (24.0 V typ.), but lower PPPM = 400 W; SMB package; no AEC-Q101 qualification stated in datasheet Rev. 12 (2023) | Limited to non-automotive industrial use where 600 W surge margin is not required | Select SMAJ24A only if cost sensitivity outweighs automotive qualification and 50 % peak power headroom. |
| SMCJ24A (Littelfuse) | Higher PPPM = 1500 W, same VBR/VC, but larger SMC (DO-214AB) package (0.285" × 0.175") requiring PCB redesign | Suitable for higher-energy surge environments (e.g., EV charging station front-ends), but incompatible with SMB footprints | Choose SMCJ24A only when system-level surge testing exceeds 600 W and board space permits larger package. |
Compared with SMAJ24A and SMCJ24A, TPSMB24A-1BHE3/5BT uniquely balances AEC-Q101 qualification, 600 W capability, and SMB footprint - making it optimal for space-constrained automotive and industrial designs requiring validated reliability without layout change.
Availability
TPSMB24A-1BHE3/5BT is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power feeding systems requiring stable component supply, AEC-Q101 traceability, and consistent SMB (DO-214AA) packaging.
Supply support for TPSMB24A-1BHE3/5BT 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 automotive, industrial, and computing markets.
The TPSMB24A-1BHE3/5BT belongs to Vishay's PAR® (Protected Anisotropic Rectifier) TVS family, engineered specifically for high-temperature, high-surge environments where AEC-Q101 compliance and stable clamping under thermal stress are mandatory.
FAQ
What is the exact breakdown voltage range for TPSMB24A-1BHE3/5BT?
The TPSMB24A-1BHE3/5BT has a guaranteed breakdown voltage (VBR) range of 22.8 V (minimum) to 25.2 V (maximum) at 1 mA test current, with a nominal value of 24.0 V. This specification is measured per ANSI/IEEE C62.35 and confirmed in Vishay Document #88406, Table on page 2. The TPSMB24A-1BHE3/5BT maintains this tolerance across its full operating temperature range.
Is TPSMB24A-1BHE3/5BT qualified for automotive applications?
Yes, TPSMB24A-1BHE3/5BT is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet (Document #88406, page 1, "FEATURES" section) and reinforced by the HE3 suffix designation. It undergoes stress testing including temperature cycling, high-temperature reverse bias, and electrostatic discharge per JESD22 standards - making TPSMB24A-1BHE3/5BT suitable for under-hood and chassis-mounted automotive electronics.
What does the "-1BHE3/5BT" suffix indicate in TPSMB24A-1BHE3/5BT?
The "-1BHE3/5BT" suffix denotes a specific ordering variant: "HE3" confirms RoHS compliance and AEC-Q101 qualification; "1B" refers to the revision code (per Vishay's marking convention); and "5BT" indicates packaging in 13-inch tape-and-reel format with 3200 units per reel. This matches the preferred package code "I" and delivery mode listed in the Ordering Information table on page 3 of Document #88406.
Does TPSMB24A-1BHE3/5BT have bidirectional polarity?
No, TPSMB24A-1BHE3/5BT is unidirectional only, as specified in the "FEATURES" section of the Vishay datasheet (page 1). It functions as a single-polarity clamp - conducting surge current from cathode to anode when reverse voltage exceeds VBR. Bidirectional variants (e.g., TPSMB24CA) are separate part numbers and are not interchangeable with TPSMB24A-1BHE3/5BT.
What is the maximum clamping voltage of TPSMB24A-1BHE3/5BT under surge conditions?
The maximum clamping voltage (VC) of TPSMB24A-1BHE3/5BT is 33.2 V at 18.1 A peak pulse current (IPPM) using the 10/1000 µs waveform, per the Electrical Characteristics table on page 2 of Vishay Document #88406. This value defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
TPSMB24A-1BHE3/5BT 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 (SMB)
TPSMB24A-1BHE3/5BT FAQ
1.How can I place an order for TPSMB24A-1BHE3/5BT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB24A-1BHE3/5BT 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 TPSMB24A-1BHE3/5BT reliable?
The price and inventory of TPSMB24A-1BHE3/5BT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB24A-1BHE3/5BT is usually 5 days.
3.What payment methods are accepted for TPSMB24A-1BHE3/5BT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB24A-1BHE3/5BT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB24A-1BHE3/5BT?
TPSMB24A-1BHE3/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB24A-1BHE3/5BT 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 TPSMB24A-1BHE3/5BT?
For technical support, including TPSMB24A-1BHE3/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB24A-1BHE3/5BT requirements.
6.How does Aetrix verify that TPSMB24A-1BHE3/5BT is sourced from the original manufacturer or authorized distributors?
All TPSMB24A-1BHE3/5BT 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 TPSMB24A-1BHE3/5BT meets industry standards.
7.What is the process for return or replacement of TPSMB24A-1BHE3/5BT?
All TPSMB24A-1BHE3/5BT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB24A-1BHE3/5BT, 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 TPSMB24A-1BHE3/5BT part is unused and in its original packaging.
Return procedure for TPSMB24A-1BHE3/5BT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB24A-1BHE3/5BT Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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