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Vishay General Semiconductor - Diodes Division TPSMC12HE3_A/I
- Part No.:
- TPSMC12HE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC12HE3_A/I.pdf
- Description:
- TVS DIODE 9.72VWM 17.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,456
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Product details
Overview
TPSMC12HE3_A/I 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 min/max = 10.8–13.2 V), 9.72 V stand-off voltage (VWM), 17.3 V maximum clamping voltage at 86.7 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 μs waveform - used in automotive power rail protection and industrial sensor interface circuits.
For engineers reviewing the TPSMC12HE3_A/I datasheet, TPSMC12HE3_A/I pinout, TPSMC12HE3_A/I application, or TPSMC12HE3_A/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal derating behavior, JEDEC-compliant packaging details, and direct alternative part comparisons for high-reliability transient suppression design.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to achieve stable junction performance up to 185 °C operating temperature and meets AEC-Q101 stress test requirements for automotive under-hood applications. Its unidirectional polarity and low incremental surge resistance enable precise overvoltage clamping during fast-rising transients.
The device is rated for 200 A non-repetitive forward surge current (8.3 ms half-sine), exhibits 3.5 V maximum forward voltage at 100 A, and maintains <2 μA reverse leakage at 9.72 V stand-off voltage - confirming suitability for low-power standby circuits and high-impedance signal line protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 10.8 V / 13.2 V - defines guaranteed breakdown onset range; ensures reliable triggering above system nominal voltage. |
| VWM | 9.72 V - maximum continuous reverse working voltage; sets safe operating margin below breakdown. |
| VC @ IPPM | 17.3 V - clamping voltage at 86.7 A peak pulse; determines protected circuit's maximum transient exposure level. |
| PPPM | 1500 W - peak pulse power handling with 10/1000 μs waveform; supports robust surge immunity per IEC 61000-4-5. |
| TJ max | +185 °C - enables operation in high-temperature environments such as engine control units and power converters. |
| AEC-Q101 | Qualified - confirms compliance with automotive-grade reliability testing including HTGB, HTRB, and temperature cycling. |
| Package | DO-214AB (SMC) - industry-standard surface-mount outline with 8.0 mm × 8.0 mm copper pad requirement for thermal dissipation. |
Pinout & Package
DO-214AB (SMC) package with cathode indicated by color band; two-terminal device with axial lead configuration optimized for PCB-level transient suppression.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side of protected line (e.g., ground or return path). |
| Cathode | Current exit point during forward conduction; marked with band | Connected to higher-potential side (e.g., supply rail or signal line) to enable clamping action. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process ensures stable VBR drift ≤ ±5 % over lifetime and temperature. |
| High-temperature capability | TJ = –65 °C to +185 °C rating supports placement near heat sources without derating loss. |
| Surge robustness | 200 A IFSM (8.3 ms) and 1500 W PPPM meet ISO 7637-2 Pulse 5a/b and IEC 61000-4-5 Level 4 requirements. |
| Process reliability | HE3 suffix indicates JESD 201 Class 2 whisker resistance and RoHS-compliant matte tin plating. |
| Automotive qualification | AEC-Q101 qualification covers HTGB, HTRB, and mechanical shock tests required for Tier-1 automotive modules. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND to clamp spikes above 17.3 V within nanoseconds. Use Value: Prevents damage to downstream regulators and microcontrollers by limiting transient energy to <1500 W per event. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC inputs. IC Role / Device Role / Timing Role: Low-leakage (≤2 μA at 9.72 V) TVS shunting ESD events on 4–20 mA loop lines. Use Value: Maintains signal integrity during IEC 61000-4-2 contact discharge while adding <0.5 pF capacitance. |
| Telecom DC Power Input Stage | Consumer Appliance Motor Drive Protection |
Use Scenario: Secondary-side surge suppression on 48 V PoE-powered network switches. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) clamping element across DC input terminals before DC/DC converter. Use Value: Absorbs 10/1000 μs surges up to 86.7 A without degradation, enabling single-stage protection architecture. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Mounted across motor terminals to clamp inductive kickback exceeding 17.3 V. Use Value: Extends MOSFET lifespan by limiting drain-source voltage overshoot during turn-off transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A-E3/5T | Lower PPPM (400 W), smaller SMA package (DO-214AC), VC = 19.9 V at 21.2 A | Targeted at cost-sensitive consumer electronics; insufficient for automotive load dump. | Select when board space is constrained and surge energy is ≤400 W. |
| 1.5KE12A | Through-hole DO-201 package, same VBR/VC, PPPM = 1500 W, but no AEC-Q101 qualification | Used in industrial power supplies where automotive qualification is not required. | Choose for legacy through-hole designs needing identical electrical specs without automotive validation. |
Compared with SMAJ12A-E3/5T and 1.5KE12A, TPSMC12HE3_A/I provides superior thermal robustness (185 °C vs. 150 °C), AEC-Q101 certification, and SMC package thermal performance - making it the preferred choice for automotive and high-reliability industrial deployments where long-term stability under thermal stress is critical.
Availability
TPSMC12HE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power input stages requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TPSMC12HE3_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, and protection devices with emphasis on high-reliability and automotive-grade solutions.
TPSMC12HE3_A/I belongs to the PAR® series of transient voltage suppressors engineered specifically for high-temperature, high-energy surge environments in automotive, industrial, and telecom infrastructure applications.
FAQ
What is the maximum clamping voltage of the TPSMC12HE3_A/I under specified test conditions?
The TPSMC12HE3_A/I has a maximum clamping voltage (VC) of 17.3 V when subjected to its rated peak pulse current (IPPM) of 86.7 A using a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 standards and defines the upper voltage limit imposed on protected circuitry during surge events. The TPSMC12HE3_A/I maintains this clamping performance across its full operating temperature range.
Is the TPSMC12HE3_A/I qualified for automotive applications?
Yes, the TPSMC12HE3_A/I is AEC-Q101 qualified, having passed all required stress tests including high-temperature gate bias (HTGB), high-temperature reverse bias (HTRB), and temperature cycling. Its 185 °C maximum junction temperature and DO-214AB package construction meet stringent automotive under-hood environmental requirements. The TPSMC12HE3_A/I is widely deployed in engine control modules and body electronics systems.
What does the "HE3_A/I" suffix indicate in TPSMC12HE3_A/I?
The "HE3" suffix denotes RoHS-compliant matte tin plating and JESD 201 Class 2 whisker resistance; "A" indicates ±5 % tolerance on VBR; and "I" specifies packaging in 13-inch diameter plastic tape and reel with 3500 units per reel. This full designation ensures traceability to Vishay's manufacturing revision and compliance documentation for the TPSMC12HE3_A/I.
How does the TPSMC12HE3_A/I compare to bidirectional TVS diodes in surge protection?
The TPSMC12HE3_A/I is unidirectional and optimized for DC power line protection where polarity is fixed - offering lower leakage (<2 μA at 9.72 V) and tighter VBR tolerance than equivalent bidirectional parts. Unlike bidirectional TVS diodes, it cannot protect AC signals or floating lines, but delivers superior clamping precision and thermal stability for automotive 12 V systems. The TPSMC12HE3_A/I is not intended for AC-coupled or differential signal paths.
What PCB layout considerations apply to the TPSMC12HE3_A/I?
The TPSMC12HE3_A/I requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads at each terminal to meet its thermal and surge current ratings. Trace width should be ≥1.5 mm for both anode and cathode connections to minimize inductance and resistive heating during transient events. The cathode band must align with the designated high-side net, and no vias should be placed directly under the device body to preserve thermal path integrity for the TPSMC12HE3_A/I.
TPSMC12HE3_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):
- 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/I FAQ
1.How can I place an order for TPSMC12HE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC12HE3_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 TPSMC12HE3_A/I reliable?
The price and inventory of TPSMC12HE3_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 TPSMC12HE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMC12HE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC12HE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC12HE3_A/I?
TPSMC12HE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC12HE3_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 TPSMC12HE3_A/I?
For technical support, including TPSMC12HE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC12HE3_A/I requirements.
6.How does Aetrix verify that TPSMC12HE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMC12HE3_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 TPSMC12HE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMC12HE3_A/I?
All TPSMC12HE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC12HE3_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 TPSMC12HE3_A/I part is unused and in its original packaging.
Return procedure for TPSMC12HE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC12HE3_A/I Tags
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