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Vishay General Semiconductor - Diodes Division TPSMC12HE3_A/H
- Part No.:
- TPSMC12HE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC12HE3_A/H.pdf
- Description:
- TVS DIODE 9.72VWM 17.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,653
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Product details
Overview
TPSMC12HE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, designed for clamping inductive switching transients and lightning-induced surges on power and signal lines. It features 12 V breakdown voltage (VBR = 10.8–13.2 V), 9.72 V maximum stand-off voltage (VWM), 1500 W peak pulse power (10/1000 µs), 17.3 V clamping voltage at 86.7 A (IPPM), and AEC-Q101 qualification for automotive use.
For engineers reviewing the TPSMC12HE3_A/H datasheet, TPSMC12HE3_A/H pinout, TPSMC12HE3_A/H application, or TPSMC12HE3_A/H equivalent, key selection criteria include unidirectional polarity, 185 °C junction temperature rating, low incremental surge resistance, MSL Level 1 moisture sensitivity, and RoHS-compliant matte tin-plated terminals solderable per J-STD-002.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with junction passivation optimized for high-reliability operation under thermal stress. Its 185 °C maximum junction temperature enables deployment in under-hood automotive environments and industrial power supplies where sustained thermal load is expected.
The device delivers 1500 W peak pulse power handling with a 10/1000 µs waveform and clamps to ≤17.3 V at 86.7 A, ensuring robust protection of downstream MOSFETs, ICs, and sensor interfaces against fast-rising transients. It exhibits very fast response time (<1 ns) and low dynamic impedance, critical for safeguarding sensitive electronics from ESD and load-dump events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 10.8 V / 13.2 V - Ensures reliable turn-on above circuit operating voltage while avoiding false triggering during normal operation. |
| VWM | 9.72 V - Maximum continuous reverse working voltage compatible with 9 V nominal supply rails and 12 V automotive systems. |
| VC @ IPPM | 17.3 V - Clamping voltage limits protected circuit stress during 86.7 A transient, staying below typical 20 V absolute maximum ratings of logic ICs. |
| PPPM | 1500 W - Sustains high-energy transients from inductive load switching (e.g., solenoids, relays) without degradation. |
| TJ max. | +185 °C - Supports placement near heat sources in engine control units and industrial motor drives without derating. |
| AEC-Q101 | Qualified - Meets automotive-grade reliability requirements for vibration, temperature cycling, and long-term stability. |
| Package | DO-214AB (SMC) - Standardized surface-mount outline with 8.0 mm × 8.0 mm copper pad footprint for thermal dissipation and automated assembly. |
Pinout & Package
TPSMC12HE3_A/H uses the DO-214AB (SMC) package: molded epoxy case meeting UL 94 V-0 flammability rating, matte tin-plated leads solderable per J-STD-002, cathode indicated by color band. Mounting requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads at each terminal per datasheet thermal guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side (e.g., ground or return path) in unidirectional TVS configuration. |
| Cathode | Current exit point during reverse-biased clamping | Connected to protected line (e.g., 12 V rail or signal trace); color band identifies this terminal. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivated anisotropic rectifier | Enables stable VBR performance over 1000+ hours at 150 °C, reducing parameter drift in harsh environments. |
| 1500 W peak pulse power (10/1000 µs) | Handles repetitive load-dump pulses up to ISO 7637-2 Pulse 5a without parametric shift or failure. |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free SMT reflow profiles without preconditioning or baking. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients (e.g., ESD ±15 kV contact discharge), improving system immunity. |
| Uni-directional polarity only | Simplifies layout for DC-biased lines (e.g., automotive battery feeds) where reverse conduction is not required. |
Applications
| Automotive Power Distribution | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V power inputs to body control modules (BCM) and infotainment head units from load-dump transients up to 35 V. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery rail and input filter capacitor. Use Value: Limits transient voltage to ≤17.3 V, preventing damage to LDO regulators and microcontrollers rated for 20 V absolute maximum. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) of pressure sensors in factory automation PLCs. IC Role / Device Role / Timing Role: TVS diode connected across signal and return lines to shunt induced surges before reaching ADC front-end. Use Value: Clamps sub-microsecond EFT bursts to <18 V, preserving 16-bit measurement accuracy and avoiding latch-up in precision op-amps. |
| Telecom DC Power Input | Computer Peripheral USB VBUS Line |
Use Scenario: Shielding 48 V DC input stages of PoE-powered switches and base station radios from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary TVS stage upstream of DC-DC converter input, sized for 1500 W pulse handling. Use Value: Absorbs 10/1000 µs surges up to 86.7 A without degradation, maintaining >100 k-cycle surge life per IEC 61000-4-5. |
Use Scenario: Adding secondary overvoltage protection on USB 2.0 VBUS lines in docking stations exposed to hot-plug transients and ESD. IC Role / Device Role / Timing Role: Low-capacitance TVS placed adjacent to USB connector to suppress fast-rising spikes before USB controller IC. Use Value: Responds in <1 ns to clamp 8 kV ESD events to <20 V, meeting USB-IF compliance for host port robustness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A-E3/5AT | Lower peak pulse power (400 W), SMA package (smaller thermal mass), VC = 19.9 V at 21.7 A | Better suited for space-constrained consumer electronics with lower energy threat levels | Select when board area is limited and surge energy does not exceed 400 W; verify thermal derating at elevated ambient. |
| 1.5KE12A | Through-hole DO-201 package, higher VC = 19.2 V at 78.1 A, same 1500 W rating but larger footprint | Preferred for legacy through-hole designs or high-vibration environments requiring mechanical anchoring | Choose for prototyping or low-volume industrial assemblies where rework tolerance and mechanical robustness outweigh SMT efficiency. |
Compared with TPSMC12HE3_A/H, SMAJ12A-E3/5AT offers smaller size but reduced surge capacity, while 1.5KE12A provides identical power rating in a less compact, through-hole form factor-making TPSMC12HE3_A/H optimal for AEC-Q101-compliant, high-density automotive SMT layouts requiring 1500 W clamping in DO-214AB.
Availability
TPSMC12HE3_A/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, telecom DC input conditioning, and computer peripheral VBUS line safeguarding requiring stable component supply, AEC-Q101 qualification, and 1500 W transient immunity.
Supply support for TPSMC12HE3_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 reliability, thermal performance, and automotive-grade qualification.
The TPSMC12HE3_A/H belongs to Vishay's PAR® (Protection Against Transients) family of high-power surface-mount TVS diodes, engineered specifically for demanding automotive and industrial applications where 185 °C operation and AEC-Q101 compliance are mandatory.
FAQ
What is the breakdown voltage range for TPSMC12HE3_A/H?
The TPSMC12HE3_A/H has a guaranteed breakdown voltage (VBR) range of 10.8 V to 13.2 V at 1 A test current, measured per ANSI/IEEE C62.35. This ensures consistent clamping behavior across production lots and supports design margining for 12 V nominal systems where transient thresholds must exceed steady-state voltage without false triggering.
Is TPSMC12HE3_A/H suitable for automotive applications?
Yes, TPSMC12HE3_A/H is AEC-Q101 qualified and rated for operation up to +185 °C junction temperature, making it suitable for under-hood and powertrain applications including engine control units, battery management systems, and ADAS domain controllers where high thermal stability and long-term reliability are required.
What is the clamping voltage of TPSMC12HE3_A/H at its maximum peak pulse current?
The TPSMC12HE3_A/H clamps to a maximum of 17.3 V at its rated peak pulse current (IPPM) of 86.7 A under a 10/1000 µs waveform. This value is specified in the Electrical Characteristics table and verified per JEDEC test conditions, ensuring predictable overvoltage limiting for downstream components with 20 V absolute maximum ratings.
Does TPSMC12HE3_A/H have bidirectional polarity?
No, TPSMC12HE3_A/H is unidirectional only, as confirmed in the Features section of the datasheet. It conducts in forward bias like a standard diode and clamps in reverse bias above VBR; bidirectional variants (e.g., TPSMC12CA) are separate part numbers with different marking codes and electrical characteristics.
What packaging and reel options are available for TPSMC12HE3_A/H?
TPSMC12HE3_A/H is supplied in 7-inch plastic tape-and-reel format with 850 units per reel (package code H), compliant with EIA-481 standards. The HE3 suffix denotes RoHS-compliant construction and JESD201 Class 2 whisker resistance, and the "A/H" revision indicates ±5 % tolerance and standard reel packaging per Vishay's ordering nomenclature.
TPSMC12HE3_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):
- 9.72V
- Voltage - Breakdown (Min):
- 10.8V
- Voltage - Clamping (Max) @ Ipp:
- 17.3V
- Current - Peak Pulse (10/1000µs):
- 86.7A
- 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)
TPSMC12HE3_A/H FAQ
1.How can I place an order for TPSMC12HE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC12HE3_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 TPSMC12HE3_A/H reliable?
The price and inventory of TPSMC12HE3_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 TPSMC12HE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMC12HE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC12HE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC12HE3_A/H?
TPSMC12HE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC12HE3_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 TPSMC12HE3_A/H?
For technical support, including TPSMC12HE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC12HE3_A/H requirements.
6.How does Aetrix verify that TPSMC12HE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMC12HE3_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 TPSMC12HE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMC12HE3_A/H?
All TPSMC12HE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC12HE3_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 TPSMC12HE3_A/H part is unused and in its original packaging.
Return procedure for TPSMC12HE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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