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Vishay General Semiconductor - Diodes Division TPSMC24AHE3_A/H
- Part No.:
- TPSMC24AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC24AHE3_A/H.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,913
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Product details
Overview
TPSMC24AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on power and signal lines. It features a 24.0 V nominal breakdown voltage (VBR), 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 - deployed in automotive power rail protection and industrial sensor interface circuits.
For engineers reviewing the TPSMC24AHE3_A/H datasheet, TPSMC24AHE3_A/H pinout, TPSMC24AHE3_A/H application, or TPSMC24AHE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, MSL Level 1 rating, 1.0 µA max reverse leakage at VWM, and compatibility with high-reliability automotive PCB layouts requiring RoHS-compliant, matte tin-plated leads.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve low incremental surge resistance and excellent clamping response under 10/1000 µs transients. Its junction passivation enables stable operation up to TJ = 185 °C, meeting automotive-grade thermal reliability requirements without derating below 150 °C.
The device is strictly unidirectional, with cathode marked by a band, and exhibits a typical VBR temperature coefficient of +0.085 %/°C. Clamping performance is validated per ANSI/IEEE C62.35, with VC measured at IPPM = 45.2 A using standardized 10/1000 µs waveform conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 22.8 / 24.0 / 25.2 V - defines precise voltage threshold at which avalanche conduction begins under 1 mA test current |
| VWM | 20.5 V - maximum continuous reverse working voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 33.2 V at 45.2 A - clamped voltage during 1500 W transient, limiting downstream IC stress |
| PPPM | 1500 W (10/1000 µs) - peak pulse power handling capacity for inductive switching surges |
| TJ max. | +185 °C - enables placement near hot components (e.g., power MOSFETs, DC-DC converters) without thermal derating |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct cathode orientation in circuit |
| MSL Level | Level 1 (J-STD-020) - supports standard reflow profiles up to 260 °C peak, no dry-pack required |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic case with UL 94 V-0 flammability rating; matte tin-plated leads, cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or low-impedance reference; carries full surge current during clamping |
| Cathode | Protected line connection | Connected to line being protected (e.g., 24 V supply rail); voltage referenced to anode during clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics under stress conditions |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/3a transients without degradation when properly mounted on 8 mm × 8 mm copper pads |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage exposure to protected ICs compared to higher-ratio TVS devices |
| Junction temperature capability to +185 °C | Enables use in under-hood automotive modules and industrial motor drives where ambient exceeds 125 °C |
| RoHS-compliant & halogen-free option available | Base P/NHE3_X meets RoHS; HM3 suffix adds halogen-free compliance for stringent environmental programs |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs in automotive ECUs against load dump and inductive switching spikes per ISO 16750-2. IC Role / Device Role / Timing Role: Transient voltage suppressor placed between battery rail and DC-DC input stage. Use Value: Limits transient voltage to ≤33.2 V, preventing damage to downstream regulators rated for 36 V absolute maximum. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation systems exposed to relay coil kickback. IC Role / Device Role / Timing Role: Unidirectional TVS shunting fast-rising transients (<1 ns rise time) on 0–5 V or 4–20 mA signal lines. Use Value: Maintains signal integrity by clamping within 100 ps while adding <1 pF junction capacitance at zero bias. |
| Telecom Power Supply Input | Computer Peripheral Port Protection |
Use Scenario: Guarding primary-side inputs of telecom AC/DC adapters against lightning-induced surges on AC mains. IC Role / Device Role / Timing Role: First-stage suppression ahead of bridge rectifier and bulk capacitor. Use Value: Absorbs 1500 W pulses without failure, enabling compliance with IEC 61000-4-5 Level 4 (4 kV line-to-line). |
Use Scenario: Protecting USB-C or PCIe power delivery lines in embedded computing platforms from ESD and hot-swap transients. IC Role / Device Role / Timing Role: Localized TVS on VBUS rails adjacent to connector entry points. Use Value: Provides 200 A non-repetitive surge current rating (IFSM) for robustness against repeated hot-plug events. |
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 SMC package, identical VBR range but higher VC (38.9 V) | Not AEC-Q101 qualified; suitable for commercial-grade consumer electronics only | Select when cost sensitivity outweighs automotive qualification and 1500 W surge margin is unnecessary |
| TPSMC24AHM3_A/H | Identical electrical specs; halogen-free molding compound and whisker-tested terminations (JESD 201 Class 2) | Required for automotive OEMs mandating halogen-free BOMs and extended lead finish reliability | Choose when environmental compliance (e.g., VW 80101) or enhanced long-term solder joint integrity is critical |
Compared with SMAJ24A and TPSMC24AHM3_A/H, the TPSMC24AHE3_A/H delivers AEC-Q101 qualification and 1500 W surge capability in a RoHS-compliant SMC package - making it optimal for automotive and industrial designs needing both reliability validation and high-energy transient immunity without halogen-free overhead.
Availability
TPSMC24AHE3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power supply inputs requiring stable component supply, AEC-Q101 traceability, and high-temperature operational continuity.
Supply support for TPSMC24AHE3_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 diodes, rectifiers, TVS devices, and optoelectronics with emphasis on high-reliability and automotive-grade performance.
The TPSMC24AHE3_A/H belongs to Vishay's PAR® series of high-power surface-mount TVS diodes, engineered specifically for robust transient suppression in harsh environments such as automotive power systems and industrial controls.
FAQ
What is the maximum clamping voltage of the TPSMC24AHE3_A/H under standard test conditions?
The TPSMC24AHE3_A/H has a maximum clamping voltage (VC) of 33.2 V when subjected to its rated peak pulse current of 45.2 A using the standardized 10/1000 µs waveform. This value is measured across the device terminals with specified mounting conditions (0.31" × 0.31" copper pads) and ensures predictable overvoltage limiting for protected circuits. The TPSMC24AHE3_A/H maintains this clamping performance consistently across its operating temperature range.
Is the TPSMC24AHE3_A/H qualified for automotive applications?
Yes, the TPSMC24AHE3_A/H is AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101 qualified variants. This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - validating its suitability for under-hood and chassis-mounted automotive electronics. The TPSMC24AHE3_A/H meets these requirements without derating up to +185 °C junction temperature.
What does the "HE3" suffix indicate in TPSMC24AHE3_A/H?
The "HE3" suffix in TPSMC24AHE3_A/H identifies a RoHS-compliant, AEC-Q101 qualified version with matte tin-plated leads that meet J-STD-002 and JESD 22-B102 solderability standards. The "_A/H" denotes revision A and packaging in 7" tape-and-reel (H = 850 units per reel). This suffix distinguishes it from non-automotive variants and confirms compliance with automotive supply chain requirements. The TPSMC24AHE3_A/H is fully traceable and documented per Vishay's AEC-Q101 certification records.
Can the TPSMC24AHE3_A/H be used in bidirectional configurations?
No, the TPSMC24AHE3_A/H is strictly unidirectional, as explicitly stated in Vishay's datasheet under FEATURES and PRIMARY CHARACTERISTICS. It conducts only during positive transients relative to its cathode terminal and must be oriented with cathode toward the protected line. For bidirectional protection, two TPSMC24AHE3_A/H devices would need back-to-back configuration - but Vishay does not recommend or characterize this arrangement. The TPSMC24AHE3_A/H is not rated or tested for reverse conduction beyond its specified leakage limits.
What is the thermal derating behavior of the TPSMC24AHE3_A/H above 25 °C ambient?
The TPSMC24AHE3_A/H follows standard derating curves per Figure 2 in its datasheet: peak pulse power decreases linearly from 100% at 25 °C to ~50% at 125 °C ambient, assuming proper PCB copper pad layout (0.31" × 0.31" per terminal). Derating is based on junction temperature limits (TJ ≤ 185 °C), not ambient alone. The TPSMC24AHE3_A/H retains full 1500 W capability up to 85 °C ambient when mounted on recommended copper areas, supporting use in thermally demanding industrial enclosures.
TPSMC24AHE3_A/H 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/H FAQ
1.How can I place an order for TPSMC24AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC24AHE3_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 TPSMC24AHE3_A/H reliable?
The price and inventory of TPSMC24AHE3_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 TPSMC24AHE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMC24AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC24AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC24AHE3_A/H?
TPSMC24AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC24AHE3_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 TPSMC24AHE3_A/H?
For technical support, including TPSMC24AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC24AHE3_A/H requirements.
6.How does Aetrix verify that TPSMC24AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMC24AHE3_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 TPSMC24AHE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMC24AHE3_A/H?
All TPSMC24AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC24AHE3_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 TPSMC24AHE3_A/H part is unused and in its original packaging.
Return procedure for TPSMC24AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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