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Vishay General Semiconductor - Diodes Division TPSMB24AHE3_A/H
- Part No.:
- TPSMB24AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB24AHE3_A/H.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,618
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Product details
Overview
TPSMB24AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching 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 (VC) 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_A/H datasheet, TPSMB24AHE3_A/H pinout, TPSMB24AHE3_A/H application, or TPSMB24AHE3_A/H equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, TJ = 185 °C thermal rating, and clamping performance under 10/1000 µs surge conditions.
Technical Context
The TPSMB24AHE3_A/H employs passivated anisotropic rectifier technology optimized for high-temperature stability and low incremental surge resistance. Its unidirectional structure provides precise reverse-biased clamping with fast response time (<1 ns) and excellent clamping ratio (VC/VBR ≈ 1.39).
Rated for 600 W peak pulse power per 10/1000 µs waveform and 75 A non-repetitive forward surge current (8.3 ms half-sine), it supports high-reliability applications requiring MSL Level 1 moisture sensitivity and JESD201 Class 2 whisker resistance - confirmed by AEC-Q101 qualification for automotive use.
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 reverse conduction onset for reliable overvoltage thresholding |
| VWM | 20.5 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 33.2 V at 18.1 A - clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPPM | 600 W - peak transient energy absorption capability under standardized surge waveform |
| TJ max. | +185 °C - enables operation in under-hood automotive and high-ambient industrial environments |
| Polarity | Unidirectional - cathode-band marked device for DC rail protection only (no AC or bidirectional clamping) |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 0.220" x 0.130" footprint and 0.086" height |
Pinout & Package
SMB (DO-214AA) package with axial lead configuration: two terminals - cathode (marked end) and anode (unmarked end). Mounts on 5.0 mm × 5.0 mm copper pads per terminal for optimal thermal dissipation and surge current handling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient clamp output node | Connected to protected line; conducts when reverse voltage exceeds VBR, 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-grade reliability including temperature cycling, HTRB, and ESD robustness |
| Junction passivation | Reduces surface leakage and improves long-term stability under high-humidity and high-TJ conditions |
| MSL Level 1 (260 °C peak) | Enables standard reflow soldering without pre-baking or special handling |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage overshoot during transient events, protecting downstream MOSFETs and ICs |
| Halogen-free option available (HM3 suffix) | Meets RoHS and automotive material compliance requirements without compromising electrical performance |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power rail and chassis ground to clamp surges above 24 V. Use Value: Limits transient voltage to ≤33.2 V at 18.1 A, preventing damage to 36 V-rated regulators and microcontrollers. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across differential signal pair to absorb sub-100 ns ESD pulses. Use Value: Sub-1 ns response ensures clamping occurs before sensitive front-end op-amps saturate or latch up. |
| Consumer Power Adapter Input Stage | Telecom DC Power Interface |
Use Scenario: Secondary-side surge suppression in 24 V wall adapters exposed to mains-coupled transients. IC Role / Device Role / Timing Role: Standoff-rated TVS on 24 V output rail to prevent overvoltage propagation to USB-PD or PoE-powered devices. Use Value: 20.5 V VWM ensures no conduction during normal operation; 600 W PPPM handles repeated 10/1000 µs surges. |
Use Scenario: DC input protection for 48 V telecom equipment subjected to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-stage unidirectional TVS on -48 V return path to divert common-mode transients. Use Value: 185 °C TJ max supports operation in sealed, fanless enclosures with ambient temperatures up to +85 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A (ON Semiconductor) | Same SMB package, VBR = 25.6–28.2 V, VC = 38.9 V @ 15.4 A, PPPM = 600 W | Higher clamping voltage reduces margin for 24 V systems with tight downstream voltage tolerances | Select when higher VBR tolerance is acceptable and legacy ON design reuse is prioritized |
| SMCJ24A (Littelfuse) | SMC (DO-214AB) package, larger footprint (0.280" × 0.240"), VBR = 25.6–28.2 V, VC = 38.9 V @ 15.4 A | Larger thermal mass supports higher repetitive surge duty cycles but requires PCB layout change | Choose for enhanced thermal endurance where board space allows and AEC-Q101 is not mandatory |
Compared with SMBJ24A and SMCJ24A, the TPSMB24AHE3_A/H offers tighter VBR tolerance (±5%), lower clamping voltage (33.2 V vs. ≥38.9 V), and guaranteed AEC-Q101 qualification - making it preferred for space-constrained, high-reliability 24 V automotive and industrial designs.
Availability
TPSMB24AHE3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, consumer power adapters, and telecom DC power systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for TPSMB24AHE3_A/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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The TPSMB24AHE3_A/H belongs to Vishay's PAR® family of transient voltage suppressors, engineered specifically for high-temperature, high-surge-energy environments where AEC-Q101 compliance and consistent clamping performance are critical.
FAQ
What is the exact breakdown voltage range for TPSMB24AHE3_A/H?
The TPSMB24AHE3_A/H has a guaranteed breakdown voltage range of 22.8 V to 25.2 V at 1 mA test current, measured per ANSI/IEEE C62.35 standards. This tight ±5% tolerance ensures predictable clamping behavior in 24 V systems and is verified per production lot testing. The nominal value of 24.0 V serves as the reference point for circuit design margins in the TPSMB24AHE3_A/H datasheet.
Is TPSMB24AHE3_A/H qualified for automotive applications?
Yes, the TPSMB24AHE3_A/H is AEC-Q101 qualified - explicitly confirmed in the Vishay datasheet (Document Number: 88406, Revision: 23-Jan-2024). This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD, validating its suitability for under-hood and body-control module applications. The HE3 suffix denotes RoHS-compliant and AEC-Q101 qualified construction.
What does the "HE3_A/H" suffix mean in TPSMB24AHE3_A/H?
The "HE3" suffix indicates RoHS-compliant, matte tin-plated leads, JESD201 Class 2 whisker resistance, and AEC-Q101 qualification. "A/H" specifies the revision code (A) and packaging format: 7" diameter plastic tape and reel with 750 units per reel. This ordering code ensures traceability to Vishay's qualified manufacturing lot and matches the preferred package code "H" listed in the official ordering table.
How does TPSMB24AHE3_A/H compare to bidirectional TVS diodes?
The TPSMB24AHE3_A/H is unidirectional only - it clamps reverse-voltage transients on DC lines but does not protect against positive-going surges on grounded signals. Unlike bidirectional variants, it offers lower leakage at VWM (≤1 µA) and tighter VBR tolerance. For AC or floating signal lines, a bidirectional part like TPSMB24CA would be required - the TPSMB24AHE3_A/H is not interchangeable in those roles.
What is the maximum clamping voltage of TPSMB24AHE3_A/H under surge conditions?
The TPSMB24AHE3_A/H clamps to a maximum of 33.2 V when subjected to its rated 10/1000 µs surge waveform at 18.1 A peak pulse current (IPPM). This value is measured per standard test conditions and represents the worst-case voltage seen by downstream components during transient events - a critical parameter for ensuring compatibility with 36 V-rated ICs and MOSFETs in the same system as the TPSMB24AHE3_A/H.
TPSMB24AHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- 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):
- 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)
TPSMB24AHE3_A/H FAQ
1.How can I place an order for TPSMB24AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB24AHE3_A/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 TPSMB24AHE3_A/H reliable?
The price and inventory of TPSMB24AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB24AHE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMB24AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB24AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB24AHE3_A/H?
TPSMB24AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB24AHE3_A/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 TPSMB24AHE3_A/H?
For technical support, including TPSMB24AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB24AHE3_A/H requirements.
6.How does Aetrix verify that TPSMB24AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMB24AHE3_A/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 TPSMB24AHE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMB24AHE3_A/H?
All TPSMB24AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB24AHE3_A/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 TPSMB24AHE3_A/H part is unused and in its original packaging.
Return procedure for TPSMB24AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB24AHE3_A/H Tags
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