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Vishay General Semiconductor - Diodes Division TPSMC24AHE3_A/I
- Part No.:
- TPSMC24AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC24AHE3_A/I.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,048
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Product details
Overview
TPSMC24AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping fast voltage transients on power and signal lines. It features 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 45.2 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - used in automotive power rail protection and industrial sensor interface circuits.
For engineers reviewing the TPSMC24AHE3_A/I datasheet, TPSMC24AHE3_A/I pinout, TPSMC24AHE3_A/I application, or TPSMC24AHE3_A/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, 1500 W surge capability, thermal stability to 185 °C, 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 reliability and low incremental surge resistance. Its junction passivation enables stable operation under repeated transient stress and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak.
The device delivers fast response time (<1 ns) and excellent clamping ratio (VC/VBR ≈ 1.38), ensuring robust protection of downstream MOSFETs and ICs against inductive switching spikes and ESD events. It is rated for non-repetitive 200 A forward surge current (8.3 ms half-sine) and exhibits a positive temperature coefficient of VBR (+0.085 %/°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 22.8 / 24.0 / 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 exceeds 1 μA |
| VC @ IPPM | 33.2 V at 45.2 A - peak clamped voltage during 1500 W transient, limiting stress on protected circuitry |
| PPPM | 1500 W (10/1000 µs) - energy-handling capacity for automotive load-dump and ISO 7637-2 pulse 5a compliance |
| TJ max. | +185 °C - enables under-hood deployment without derating in automotive ECUs and motor control units |
| Polarity | Unidirectional - protects only against positive transients relative to cathode; requires correct orientation in series with power line |
| Package | SMC (DO-214AB) - industry-standard 2-pin surface-mount outline with 8.0 mm × 8.0 mm copper pad requirement for thermal dissipation |
Pinout & Package
TPSMC24AHE3_A/I uses the SMC (DO-214AB) package: a rectangular, surface-mount, two-terminal plastic case with cathode band marking. Dimensions are 7.11 mm × 6.22 mm × 2.90 mm (L × W × H); terminals are matte tin-plated for solderability per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line (e.g., 24 V rail); conducts surge current to ground when VIN > VBR |
| Anode | Reference/ground return path | Typically tied to system ground or low-impedance return plane; completes clamping loop during overvoltage event |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - supports PPAP documentation |
| Junction passivation | Reduces surface leakage and improves long-term stability under high humidity and thermal stress |
| MSL Level 1 rating | Allows unlimited floor life and 260 °C peak reflow without baking - compatible with standard SMT production lines |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 16750-2 pulse 1), improving protection margin |
| 185 °C TJ capability | Enables placement near heat sources (e.g., power inductors, MOSFETs) without thermal derating in engine control modules |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 24 V supply inputs in body control modules (BCM) and ADAS domain controllers from load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed in parallel with input filter capacitor to clamp surges above 33.2 V. Use Value: Limits voltage seen by downstream DC/DC converters and microcontrollers to ≤33.2 V during 1500 W pulses, preventing latch-up or gate oxide damage. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Transient suppressor on 4–20 mA current loop output line, referenced to local ground. Use Value: Clamps ESD and inductive kickback to <33.2 V within nanoseconds, preserving 16-bit DAC accuracy and avoiding ADC saturation. |
| Telecom DC Power Interface | Computer Peripheral USB VBUS Protection |
Use Scenario: Front-end surge suppression on -48 V telecom rectifier outputs feeding base station RF amplifiers. IC Role / Device Role / Timing Role: Cathode connected to -48 V rail, anode to chassis ground - clamps negative-going transients. Use Value: Withstands repetitive 10/1000 µs surges up to 1500 W while maintaining <1 μA leakage at -40.2 V, ensuring standby efficiency. |
Use Scenario: Secondary-level overvoltage protection on USB 3.0 VBUS lines in docking stations exposed to hot-plug transients. IC Role / Device Role / Timing Role: TVS placed between VBUS and ground, upstream of USB power switch, to absorb 8 kV contact ESD per IEC 61000-4-2. Use Value: Achieves <33.2 V clamping at 45.2 A with sub-1 ns response, preventing damage to USB PD controllers and Type-C port logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Lower peak pulse power (400 W), same VBR range, SMA package (smaller thermal mass) | Not AEC-Q101 qualified; limited to consumer/industrial use below 150 °C | Select when cost sensitivity outweighs automotive qualification and surge energy requirements |
| TPSMC24AHM3_A/I | Halogen-free variant with identical electrical specs and AEC-Q101 qualification; same SMC package | Required for RoHS-compliant, halogen-free BOMs in EU automotive programs | Choose for strict material compliance without performance trade-offs |
Compared with TPSMC24AHE3_A/I, SMAJ24A offers lower surge handling and no automotive qualification, while TPSMC24AHM3_A/I provides identical protection performance with halogen-free construction - enabling direct substitution where material compliance is mandated.
Availability
TPSMC24AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power systems requiring stable component supply, AEC-Q101 validation, and high-temperature reliability.
Supply support for TPSMC24AHE3_A/I 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 high-reliability and automotive-grade components.
The TPSMC24AHE3_A/I belongs to Vishay's PAR® family of high-power TVS diodes, engineered specifically for demanding transient suppression in automotive power distribution, industrial automation, and infrastructure equipment where thermal stability and AEC-Q101 compliance are mandatory.
FAQ
What is the AEC-Q101 qualification status of TPSMC24AHE3_A/I?
TPSMC24AHE3_A/I is AEC-Q101 qualified, as confirmed by Vishay's official documentation and ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101 qualified variants. This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD, making TPSMC24AHE3_A/I suitable for automotive powertrain and chassis applications.
Does TPSMC24AHE3_A/I support bidirectional transient suppression?
No, TPSMC24AHE3_A/I is unidirectional only, as explicitly stated in the Vishay datasheet. It clamps positive transients relative to its cathode terminal and must be oriented with the banded end toward the protected line. For bidirectional protection, a separate device such as TPSMC24CA or dual-diode configuration is required - TPSMC24AHE3_A/I does not provide symmetrical clamping.
What is the maximum clamping voltage of TPSMC24AHE3_A/I and at what current is it specified?
The maximum clamping voltage of TPSMC24AHE3_A/I is 33.2 V, measured at 45.2 A peak pulse current (IPPM) using a 10/1000 µs waveform. This value is guaranteed across temperature and ensures downstream components see no more than 33.2 V during worst-case surge events, critical for protecting 3.3 V or 5 V logic interfaces powered from 24 V rails.
Can TPSMC24AHE3_A/I be used in reflow soldering processes without preconditioning?
Yes, TPSMC24AHE3_A/I meets MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C without baking or moisture preconditioning. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102, enabling direct placement into standard lead-free SMT lines - no floor-life restrictions apply.
How does the 185 °C maximum junction temperature of TPSMC24AHE3_A/I impact board layout?
The 185 °C TJ max. rating of TPSMC24AHE3_A/I allows placement near heat-generating components like power inductors or MOSFETs without thermal derating, provided the PCB uses 8.0 mm × 8.0 mm copper pads per terminal as specified. This eliminates need for oversized thermal reliefs or remote mounting, simplifying layout for space-constrained automotive modules.
TPSMC24AHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- 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):
- 45.2A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCJ)
TPSMC24AHE3_A/I FAQ
1.How can I place an order for TPSMC24AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC24AHE3_A/I 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 TPSMC24AHE3_A/I reliable?
The price and inventory of TPSMC24AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC24AHE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMC24AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC24AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC24AHE3_A/I?
TPSMC24AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC24AHE3_A/I 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 TPSMC24AHE3_A/I?
For technical support, including TPSMC24AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC24AHE3_A/I requirements.
6.How does Aetrix verify that TPSMC24AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMC24AHE3_A/I 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 TPSMC24AHE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMC24AHE3_A/I?
All TPSMC24AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC24AHE3_A/I, 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 TPSMC24AHE3_A/I part is unused and in its original packaging.
Return procedure for TPSMC24AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC24AHE3_A/I Tags
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