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Vishay General Semiconductor - Diodes Division TPSMC24HE3_A/I
- Part No.:
- TPSMC24HE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC24HE3_A/I.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,433
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Product details
Overview
TPSMC24HE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, designed for high-energy surge protection on power and signal lines. It features a 21.6 V to 26.4 V breakdown voltage (VBR), 19.4 V stand-off voltage (VWM), 1500 W peak pulse power (10/1000 μs), 43.2 A peak pulse current (IPPM), and clamps to 34.7 V at rated surge - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the TPSMC24HE3_A/I datasheet, TPSMC24HE3_A/I pinout, TPSMC24HE3_A/I application, or TPSMC24HE3_A/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 185 °C junction temperature rating, MSL Level 1 moisture sensitivity, and compatibility with 13" tape-and-reel automated assembly.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for high-temperature stability and low incremental surge resistance. Its unidirectional configuration provides forward conduction path during overvoltage events while maintaining tight clamping performance under 10/1000 μs transients.
Rated for operation from –65 °C to +185 °C, it meets JESD201 Class 2 whisker resistance and is qualified per AEC-Q101 for automotive under-hood applications. The device is mounted on 8.0 mm × 8.0 mm copper pads and derates linearly above 25 °C ambient per Figure 2 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 21.6 V / 26.4 V - ensures reliable triggering above normal operating voltage while avoiding false trips during line transients. |
| VWM | 19.4 V - maximum continuous reverse working voltage before leakage exceeds 1 μA, defining safe DC bias margin. |
| PPPM | 1500 W - peak pulse power handling capability with 10/1000 μs waveform, enabling robust protection against ISO 7637-2 Load Dump surges. |
| IPPM | 43.2 A - peak surge current at clamp voltage, directly determining PCB trace sizing and fuse coordination. |
| VC @ IPPM | 34.7 V - clamping voltage limiting downstream component stress; critical for safeguarding 36 V-rated ICs or MOSFETs. |
| TJ max. | +185 °C - enables use in high-temperature environments such as engine control units without thermal derating penalties. |
| AEC-Q101 | Qualified - confirms reliability validation for automotive electronics per stress test requirements including HTGB, HTRB, and TCT. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, cathode indicated by molded band. Dimensions: 7.11 mm × 6.22 mm × 2.90 mm (L × W × H); terminals matte tin-plated, solderable per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal during surge | Connected to protected line (e.g., battery rail or signal input); conducts when reverse voltage exceeds VBR. |
| Cathode | Reverse-biased terminal during normal operation | Marked by color band; tied to ground or lower-potential reference to enable clamping action during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Supports high-energy transients like ISO 16750-2 jump-start pulses without degradation. |
| 185 °C maximum junction temperature | Enables direct placement near heat sources (e.g., power converters) without thermal shutdown or parameter drift. |
| AEC-Q101 qualification | Validates long-term reliability for automotive ECUs, ADAS modules, and body control units under accelerated stress conditions. |
| MSL Level 1 (260 °C peak reflow) | Permits single-pass lead-free reflow without popcorn effect or delamination, simplifying SMT manufacturing. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), improving protection fidelity. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply rails in engine control modules from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode clamping reverse surges to <34.7 V during ISO 7637-2 Pulse 5a events. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers powered from the same rail. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation systems from ESD and cable discharge. IC Role / Device Role / Timing Role: Fast-response transient suppressor placed at connector entry point to limit voltage excursion to ≤34.7 V. Use Value: Maintains signal integrity and avoids ADC saturation or op-amp input stage damage during 8 kV contact ESD events. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding 24–48 V DC inputs of base station power supplies against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary surge suppression element absorbing up to 1500 W energy in 10/1000 μs waveform. Use Value: Reduces need for secondary protection stages, lowering BOM cost and board space vs. multi-stage designs. |
Use Scenario: Clamping inductive kickback from brushed DC motors in smart home appliances (e.g., vacuum cleaners, washing machines). IC Role / Device Role / Timing Role: Unidirectional TVS placed across motor terminals to clamp flyback voltage spikes to 34.7 V. Use Value: Extends lifespan of H-bridge MOSFETs by limiting drain-source voltage stress during commutation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-E3/5T | Lower PPPM (400 W), SMA package (smaller footprint), VC = 38.9 V at 11.3 A | Not suitable for ISO 7637-2 Pulse 5a; limited to lower-energy transients like IEC 61000-4-5 Level 3 | Select when space-constrained and surge energy is ≤400 W; verify clamping margin for 24 V system ICs. |
| 1.5SMC24A | Same DO-214AB package, identical VBR/VWM, but not AEC-Q101 qualified and rated only to +150 °C | Lacks automotive qualification and high-temp reliability; unsuitable for under-hood deployment | Acceptable for industrial or consumer applications where AEC-Q101 and 185 °C operation are not required. |
Compared with SMAJ24A-E3/5T and 1.5SMC24A, the TPSMC24HE3_A/I delivers higher surge robustness (1500 W vs. 400 W or 1500 W without AEC-Q101), tighter thermal margin (+185 °C), and validated automotive reliability - making it the preferred choice for safety-critical 24 V systems requiring long-term field endurance.
Availability
TPSMC24HE3_A/I is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply across production lifecycles.
Supply support for TPSMC24HE3_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 solutions.
The TPSMC series belongs to Vishay's PAR® family of high-power TVS diodes engineered specifically for demanding automotive and industrial surge protection, where high-temperature operation and AEC-Q101 compliance are mandatory.
FAQ
What is the breakdown voltage range for TPSMC24HE3_A/I?
The TPSMC24HE3_A/I has a specified breakdown voltage (VBR) range of 21.6 V to 26.4 V at 1 mA test current, measured per ANSI/IEEE C62.35 standards. This range ensures consistent turn-on behavior across production lots and temperature extremes, supporting reliable overvoltage detection in 24 V nominal systems.
Is TPSMC24HE3_A/I qualified for automotive applications?
Yes, TPSMC24HE3_A/I is AEC-Q101 qualified and rated for operation up to +185 °C junction temperature, meeting stress test requirements for automotive electronics including high-temperature bias life, temperature cycling, and humidity testing. It is commonly deployed in engine control units and body electronics.
What does the "HE3_A/I" suffix mean in TPSMC24HE3_A/I?
The "HE3" denotes RoHS-compliant construction with matte tin-plated leads and JESD201 Class 2 whisker resistance; "A" indicates ±5 % tolerance on VBR; "I" specifies packaging in 13" diameter plastic tape and reel with 3500 units per reel - optimized for high-volume SMT placement.
What is the clamping voltage of TPSMC24HE3_A/I at its rated surge current?
The TPSMC24HE3_A/I clamps to a maximum of 34.7 V at its rated peak pulse current (IPPM) of 43.2 A under 10/1000 μs waveform conditions. This value defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Can TPSMC24HE3_A/I be used in bidirectional configurations?
No, TPSMC24HE3_A/I is unidirectional only, with cathode marked by a band. For bidirectional protection, Vishay offers the TPSMC24A variant (dual-diode configuration), which provides symmetrical clamping for AC lines or differential signal pairs.
TPSMC24HE3_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 (SMC)
TPSMC24HE3_A/I FAQ
1.How can I place an order for TPSMC24HE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC24HE3_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 TPSMC24HE3_A/I reliable?
The price and inventory of TPSMC24HE3_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 TPSMC24HE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMC24HE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC24HE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC24HE3_A/I?
TPSMC24HE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC24HE3_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 TPSMC24HE3_A/I?
For technical support, including TPSMC24HE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC24HE3_A/I requirements.
6.How does Aetrix verify that TPSMC24HE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMC24HE3_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 TPSMC24HE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMC24HE3_A/I?
All TPSMC24HE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC24HE3_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 TPSMC24HE3_A/I part is unused and in its original packaging.
Return procedure for TPSMC24HE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC24HE3_A/I Tags
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