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Vishay General Semiconductor - Diodes Division TPSMC24AHE3_B/H
- Part No.:
- TPSMC24AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC24AHE3_B/H.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,493
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Product details
Overview
TPSMC24AHE3_B/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 24.0 V nominal breakdown voltage (VBR), 20.5 V stand-off voltage (VWM), 1500 W peak pulse power (10/1000 µs), 1.0 µA max reverse leakage at VWM, and 33.2 V clamping voltage at 45.2 A peak pulse current - deployed in automotive power rail protection and industrial sensor interface circuits.
For engineers reviewing the TPSMC24AHE3_B/H datasheet, TPSMC24AHE3_B/H pinout, TPSMC24AHE3_B/H application, or TPSMC24AHE3_B/H equivalent, key selection considerations include its AEC-Q101 qualification, 185 °C maximum junction temperature, unidirectional polarity, SMC package thermal performance, and compliance with IEC 61000-4-2/4-4/4-5 surge immunity requirements.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping under repetitive surge stress. Its junction passivation enables operation up to TJ = 185 °C and supports high-reliability automotive environments where thermal cycling and long-term stability are critical.
The device responds within picoseconds to transient overvoltages and maintains low incremental surge resistance during 10/1000 µs waveform events. Its clamping behavior is characterized by a typical VBR temperature coefficient of +0.085 %/°C, enabling predictable voltage shift across operating temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 22.8 V / 24.0 V / 25.2 V - ensures reliable turn-on before downstream IC damage threshold |
| VWM | 20.5 V - maximum continuous DC or RMS voltage the device blocks without conduction |
| IPPM | 45.2 A - peak surge current it safely clamps at 10/1000 µs waveform without degradation |
| VC @ IPPM | 33.2 V - clamped voltage seen by protected circuit during full-rated surge event |
| PPPM | 1500 W - peak transient energy absorption capability per single pulse |
| TJ max. | +185 °C - enables use in under-hood automotive modules and high-ambient industrial enclosures |
| Polarity | Unidirectional - protects against positive-going transients only; cathode band denotes terminal orientation |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, UL 94 V-0 molding compound, MSL Level 1 (260 °C reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VIN exceeds VBR |
| Anode | Reference return path | Typically tied to system ground or low-impedance return plane for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements |
| 1500 W peak pulse power (10/1000 µs) | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 combination wave surges |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage exposure to downstream MOSFETs, MCUs, and analog front-ends |
| Junction passivation optimized design | Ensures stable VBR and leakage performance after 1000+ thermal cycles (-55 °C to +185 °C) |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free SMT assembly without pre-baking or special handling |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 24 V supply rails in engine control units (ECUs) and body control modules (BCMs) from load dump and inductive switching transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between battery input and DC/DC converter input stage. Use Value: Limits transient voltage to ≤33.2 V during 1500 W surges, preventing damage to 36 V-rated buck controllers and CAN transceivers. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA, 0–10 V) of pressure/temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance shunt protector mounted directly at connector entry point. Use Value: Clamps ESD (IEC 61000-4-2 ±8 kV contact) and fast transients (IEC 61000-4-4 ±2 kV) without distorting signal integrity. |
| Telecom DC Power Interface | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Input-stage surge suppression on 48 V PoE-powered network equipment (switches, access points). IC Role / Device Role / Timing Role: First-line defense against lightning-induced surges entering via Ethernet or auxiliary DC jack. Use Value: Absorbs 10/1000 µs surges up to 45.2 A while maintaining <1.0 µA leakage at 20.5 V, preserving standby power budget. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in smart home appliances (vacuum cleaners, blenders). IC Role / Device Role / Timing Role: Parallel-connected clamp across motor terminals to limit back-EMF voltage. Use Value: Withstands 200 A non-repetitive forward surge (IFSM) and operates reliably at 150 °C ambient in enclosed motor housings. |
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 | Lower PPPM (400 W), SMA package (smaller thermal mass), VC = 38.9 V at 10.3 A | Not rated for AEC-Q101; limited to consumer/industrial grade; lower surge robustness | Choose for cost-sensitive, low-energy transient environments where 1500 W rating is unnecessary |
| TPSMC24AHM3_B/H | Identical electrical specs; halogen-free molding compound; same RoHS/AEC-Q101 compliance | No functional difference; used where halogen-free material compliance is mandated (e.g., EU automotive Tier 1) | Direct drop-in alternative if halogen-free requirement applies; otherwise identical performance and layout |
Compared with TPSMC24AHE3_B/H, SMAJ24A offers reduced surge handling and no automotive qualification, while TPSMC24AHM3_B/H provides identical protection performance with halogen-free construction - making the latter a seamless material-compliance upgrade without design change.
Availability
TPSMC24AHE3_B/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom power supplies, and consumer appliance motor drives requiring stable component supply with AEC-Q101 assurance and high-temperature reliability.
Supply support for TPSMC24AHE3_B/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 reliability and ruggedized packaging.
The TPSMC24AHE3_B/H belongs to Vishay's PAR® series of high-power surface-mount TVS diodes, engineered specifically for automotive-grade transient suppression in harsh thermal and electrical environments.
FAQ
What is the breakdown voltage tolerance for TPSMC24AHE3_B/H?
The TPSMC24AHE3_B/H has a specified breakdown voltage range of 22.8 V (minimum) to 25.2 V (maximum) at 1 mA test current, with 24.0 V as the nominal value. This ±5% tolerance ensures consistent clamping behavior across production lots and allows proper margining against downstream IC absolute maximum ratings. The device meets this specification at TA = 25 °C per the Vishay datasheet revision 19-Jan-2024.
Is TPSMC24AHE3_B/H suitable for bidirectional transient protection?
No, TPSMC24AHE3_B/H is unidirectional only, as confirmed in the Vishay datasheet under FEATURES and ELECTRICAL CHARACTERISTICS. It protects against positive-going transients on the cathode side relative to anode. For bidirectional protection, a separate device such as SMBJ24CA or a dual-diode configuration would be required - TPSMC24AHE3_B/H must not be used in AC-coupled or symmetrical surge scenarios.
Does TPSMC24AHE3_B/H require derating at elevated ambient temperatures?
Yes, TPSMC24AHE3_B/H must be derated above TA = 25 °C per Figure 2 in the Vishay datasheet. Peak pulse power decreases linearly with rising junction temperature, reaching ~70% of 1500 W at 100 °C ambient (with appropriate PCB copper area). Designers must apply thermal derating curves and verify layout thermal performance to maintain reliability in high-temperature applications like under-hood automotive modules.
What does the "HE3" suffix indicate in TPSMC24AHE3_B/H?
The "HE3" suffix in TPSMC24AHE3_B/H denotes RoHS-compliant construction and AEC-Q101 qualification per Vishay's ordering nomenclature. It also specifies matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and whisker resistance per JESD 201 Class 2. The "B/H" indicates packaging in 7-inch tape-and-reel format with 850 units per reel - all verified in the ORDERING INFORMATION section of the datasheet.
How is the clamping voltage of TPSMC24AHE3_B/H measured and validated?
The clamping voltage (VC = 33.2 V) of TPSMC24AHE3_B/H is measured at IPPM = 45.2 A using a standardized 10/1000 µs double-exponential surge waveform per ANSI/IEEE C62.35, with device mounted on 8.0 mm × 8.0 mm copper pads. This value is guaranteed maximum per the datasheet's ELECTRICAL CHARACTERISTICS table and reflects worst-case clamping under full-rated surge conditions - critical for validating protection margins in safety-critical designs.
TPSMC24AHE3_B/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:
- 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):
- 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)
TPSMC24AHE3_B/H FAQ
1.How can I place an order for TPSMC24AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC24AHE3_B/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_B/H reliable?
The price and inventory of TPSMC24AHE3_B/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_B/H is usually 5 days.
3.What payment methods are accepted for TPSMC24AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC24AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC24AHE3_B/H?
TPSMC24AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC24AHE3_B/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_B/H?
For technical support, including TPSMC24AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC24AHE3_B/H requirements.
6.How does Aetrix verify that TPSMC24AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All TPSMC24AHE3_B/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_B/H meets industry standards.
7.What is the process for return or replacement of TPSMC24AHE3_B/H?
All TPSMC24AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC24AHE3_B/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_B/H part is unused and in its original packaging.
Return procedure for TPSMC24AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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