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Vishay General Semiconductor - Diodes Division TPSMC30AHE3/9AT
- Part No.:
- TPSMC30AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC30AHE3/9AT.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,116
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Product details
Overview
TPSMC30AHE3/9AT from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection on power and signal lines. It features 30 V breakdown voltage (VBR = 28.5–31.5 V at 1 mA), 25.6 V stand-off voltage (VWM), 41.4 V clamping voltage (VC) at 36.2 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive power supply rails and industrial sensor interfaces.
For engineers reviewing the TPSMC30AHE3/9AT datasheet, TPSMC30AHE3/9AT pinout, TPSMC30AHE3/9AT application, or TPSMC30AHE3/9AT equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 185 °C junction temperature rating, low incremental surge resistance, and compatibility with automated SMT assembly under J-STD-002/JESD 22-B102 soldering standards.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping performance across -65 °C to +185 °C operating range. Its junction passivation enables high reliability under thermal cycling and high-humidity conditions, supporting automotive-grade deployment without derating below 150 °C.
The device operates as a voltage-clamped shunt protector: when transient voltage exceeds VWM (25.6 V), it avalanches at VBR and clamps to ≤41.4 V at 36.2 A, limiting energy dissipation in downstream ICs. Response time is sub-nanosecond, with low dynamic impedance ensuring effective suppression of ESD and load-switching transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 28.5 / 30.0 / 31.5 V at 1 mA - defines precise avalanche onset threshold for repeatable clamping activation |
| VWM | 25.6 V - maximum continuous reverse voltage before leakage exceeds 1 μA; sets safe operating margin below VBR |
| VC @ IPPM | 41.4 V at 36.2 A - clamping voltage during 10/1000 μs surge; determines protected circuit's maximum transient exposure |
| PPPM | 1500 W - peak pulse power handling capacity; enables robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges |
| TJ max. | +185 °C - extended junction temperature rating supports under-hood automotive use and high-power industrial PCBs |
| Polarity & Package | Unidirectional / SMC (DO-214AB) - cathode-banded surface-mount package with 8.0 mm × 8.0 mm copper pad requirement for thermal management |
Pinout & Package
Package: SMC (DO-214AB), molded epoxy case meeting UL 94 V-0; matte tin-plated leads; cathode indicated by color band; MSL Level 1 (260 °C reflow peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction or clamping | Connected to protected line (e.g., 24 V rail); carries full surge current during transient event |
| Cathode | Current exit terminal during clamping; referenced to system ground | Connected to ground plane or low-impedance return path; establishes clamping reference and thermal sink interface |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics per stress test requirements |
| 1500 W peak pulse power (10/1000 μs) | Supports EN 61000-4-5 Level 4 (4 kV line-to-earth) and ISO 16750-2 Load Dump immunity without external series impedance |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage stress on downstream MOSFETs and microcontrollers during fast transients |
| Junction temperature capability up to +185 °C | Enables placement near heat sources (e.g., DC-DC converters) without thermal derating in automotive modules |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs in ADAS camera modules against load dump and jump-start transients. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed directly at connector entry point before DC-DC regulator input. Use Value: Clamps 120 V/100 ms load dump to ≤41.4 V, preventing damage to LDOs and image sensors while maintaining AEC-Q101 compliance. | Use Scenario: Safeguarding RS-485 transceivers in factory automation PLC I/O modules from EFT and surge coupling. IC Role / Device Role / Timing Role: Bidirectional protection not applicable; unidirectional TPSMC30AHE3/9AT used on VCC side only with separate TVS on data lines. Use Value: Limits voltage excursion on 30 V auxiliary rail to safe levels during 4 kV ESD events, preserving communication integrity without adding capacitance to signal paths. |
| Telecom Power Supply Input | Consumer Appliance Motor Drive Protection |
Use Scenario: Guarding primary-side DC bus in PoE-powered network switches against lightning-induced surges on 48 V input. IC Role / Device Role / Timing Role: First-stage clamping device upstream of active OR-ing FETs and bulk capacitors. Use Value: Absorbs 1500 W surge energy within 1000 μs, reducing stress on downstream TVS arrays and enabling smaller secondary-stage components. | Use Scenario: Suppressing inductive kickback from brushed DC motors in smart home vacuum cleaners. IC Role / Device Role / Timing Role: Parallel-connected TVS across motor terminals to clamp flyback voltage spikes during PWM commutation. Use Value: Prevents MOSFET drain-source breakdown by limiting spike amplitude to 41.4 V, extending power stage lifetime under repetitive switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A | Lower PPPM (400 W), same VBR range, SMA package (smaller footprint, lower thermal mass) | Not AEC-Q101 qualified; limited to consumer/industrial use below 150 °C ambient | Select when cost and board space are critical and automotive qualification is unnecessary. |
| TPSMC30AHM3/9AT | Identical electrical specs; halogen-free molding compound and whisker-resistant plating per JESD 201 Class 2 | Same automotive and industrial use cases; required where halogen-free compliance is mandated | Choose when RoHS + halogen-free + AEC-Q101 must all be satisfied simultaneously. |
Compared with SMAJ30A and TPSMC30AHM3/9AT, the TPSMC30AHE3/9AT delivers higher surge robustness (1500 W vs. 400 W) and automotive qualification in a thermally optimized SMC package, making it preferred for under-hood and high-reliability industrial deployments where sustained power dissipation and long-term stability are critical.
Availability
TPSMC30AHE3/9AT is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom power supply input surge suppression requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for TPSMC30AHE3/9AT 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, high-temperature, and automotive-qualified components.
The TPSMC30AHE3/9AT belongs to Vishay's PAR® (Protection Against Transients) family of high-power TVS diodes, engineered specifically for demanding automotive and industrial environments where thermal stability, surge endurance, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the TPSMC30AHE3/9AT and how is it measured?
The TPSMC30AHE3/9AT has a maximum clamping voltage (VC) of 41.4 V at 36.2 A peak pulse current, tested with a 10/1000 μs double-exponential waveform per IEC 61000-4-5. This value represents the actual voltage seen by downstream circuitry during worst-case surge events and is guaranteed across the full operating temperature range (-65 °C to +185 °C). The TPSMC30AHE3/9AT achieves this via low-dynamic-impedance silicon design, ensuring predictable protection behavior without external tuning.
Is the TPSMC30AHE3/9AT AEC-Q101 qualified and what does that cover?
Yes, the TPSMC30AHE3/9AT is AEC-Q101 qualified, meaning it has passed stress tests including high-temperature operating life (HTOL), temperature cycling (TC), unbiased highly accelerated stress test (uHAST), and electrostatic discharge (HBM/MM). This qualification confirms suitability for automotive electronic systems such as body control modules, infotainment power supplies, and ADAS subsystems - verified per the base P/NHE3 suffix designation in Vishay's ordering nomenclature.
What is the difference between TPSMC30AHE3/9AT and TPSMC30AHM3/9AT?
The TPSMC30AHE3/9AT and TPSMC30AHM3/9AT share identical electrical specifications, package, and AEC-Q101 qualification. The distinction lies in material composition: TPSMC30AHE3/9AT is RoHS-compliant with standard molding compound, while TPSMC30AHM3/9AT adds halogen-free construction and meets JESD 201 Class 2 whisker resistance requirements. Both are drop-in replacements electrically, but TPSMC30AHM3/9AT is selected when halogen-free compliance is contractually required.
Can the TPSMC30AHE3/9AT be used in bidirectional configurations?
No, the TPSMC30AHE3/9AT is unidirectional only, with cathode marking indicating polarity. It conducts and clamps only when the anode is more positive than the cathode by ≥VBR. For bidirectional transient suppression (e.g., AC lines or differential data buses), two TPSMC30AHE3/9AT devices must be connected in series opposition - but this configuration is not recommended due to mismatched VBR tolerance and reduced reliability versus purpose-built bidirectional TVS devices.
What PCB layout considerations apply to the TPSMC30AHE3/9AT?
For optimal thermal and electrical performance, the TPSMC30AHE3/9AT requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads at each terminal per Vishay's datasheet recommendation. Trace width should be ≥1.5 mm to handle 200 A surge current, and ground connections must be low-inductance and directly tied to solid internal ground planes. Avoid routing sensitive signals near the device's anode-cathode path to prevent coupling during clamping events.
TPSMC30AHE3/9AT 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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 36.2A
- 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)
TPSMC30AHE3/9AT FAQ
1.How can I place an order for TPSMC30AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC30AHE3/9AT 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 TPSMC30AHE3/9AT reliable?
The price and inventory of TPSMC30AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC30AHE3/9AT is usually 5 days.
3.What payment methods are accepted for TPSMC30AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC30AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC30AHE3/9AT?
TPSMC30AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC30AHE3/9AT 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 TPSMC30AHE3/9AT?
For technical support, including TPSMC30AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC30AHE3/9AT requirements.
6.How does Aetrix verify that TPSMC30AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All TPSMC30AHE3/9AT 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 TPSMC30AHE3/9AT meets industry standards.
7.What is the process for return or replacement of TPSMC30AHE3/9AT?
All TPSMC30AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC30AHE3/9AT, 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 TPSMC30AHE3/9AT part is unused and in its original packaging.
Return procedure for TPSMC30AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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