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Vishay General Semiconductor - Diodes Division TPSMC15AHE3_B/H
- Part No.:
- TPSMC15AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC15AHE3_B/H.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,439
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Product details
Overview
TPSMC15AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 15.0 V nominal breakdown voltage (VBR), 12.8 V maximum stand-off voltage (VWM), 21.2 V clamping voltage at 70.8 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - deployed in automotive power rails and industrial sensor interfaces.
For engineers reviewing the TPSMC15AHE3_B/H datasheet, TPSMC15AHE3_B/H pinout, TPSMC15AHE3_B/H application, or TPSMC15AHE3_B/H equivalent, key selection criteria include its AEC-Q101 qualification, SMC (DO-214AB) package compatibility, unidirectional polarity, low leakage (<1 µA at VWM), and high-temperature reliability for under-hood and motor-control environments.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping performance across -65 °C to +185 °C operating range. Its 10/1000 µs waveform response enables reliable suppression of inductive switching transients and ESD events in DC power distribution networks.
The device exhibits 0.076 %/°C temperature coefficient of VBR, ensuring predictable voltage threshold drift with thermal variation. Its 3.5 V maximum forward voltage at 100 A supports low-loss surge conduction during high-current transients without excessive self-heating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 14.3 / 15.0 / 15.8 V - defines precise voltage threshold at which clamping initiates under 1 mA test current |
| VWM | 12.8 V - maximum continuous reverse working voltage before leakage exceeds 1 µA |
| VC @ IPPM | 21.2 V at 70.8 A - clamped voltage during 1500 W transient, limiting downstream IC stress |
| PPPM | 1500 W (10/1000 µs) - peak pulse power handling capacity for short-duration surges |
| TJ max. | +185 °C - enables operation in high-temperature automotive and industrial enclosures |
| Polarity | Unidirectional - protects against positive-going transients only; cathode band denotes polarity |
| MSL Level | Level 1 (J-STD-020) - supports lead-free reflow up to 260 °C peak without moisture sensitivity concerns |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, UL 94 V-0 molding compound. Cathode identified 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 the line being protected (e.g., 12 V rail); voltage referenced to anode during clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance per JESD22-A108 |
| 1500 W peak pulse power | Withstands high-energy transients from load dump or inductive kick without degradation |
| Low leakage at VWM | <1 µA at 12.8 V ensures minimal standby power loss in always-on systems |
| Fast response time | <1 ns turn-on enables suppression before sensitive downstream circuitry is damaged |
| Junction temp. capability | Rated to +185 °C TJ supports placement near power MOSFETs or motors without derating |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from ISO 7637-2 load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp overvoltage spikes. Use Value: Clamps to 21.2 V at 70.8 A, preventing damage to 16 V-rated regulators and microcontrollers. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) from ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS connected across signal and return, absorbing fast transients before reaching ADC inputs. Use Value: Sub-1 ns response and 12.8 V VWM ensure signal integrity remains intact during 8 kV contact ESD. |
| Motor Drive Gate Driver Protection | Telecom DC Power Input Protection |
Use Scenario: Safeguarding high-side gate drivers in BLDC inverters from Miller-induced voltage spikes. IC Role / Device Role / Timing Role: TVS mounted at driver supply pin to suppress dV/dt-induced overshoot on VDD. Use Value: 185 °C rating allows placement adjacent to heatsinks; 1500 W rating handles repetitive commutation surges. |
Use Scenario: Front-end protection for PoE-powered equipment against lightning-induced surges on 48 V DC input. IC Role / Device Role / Timing Role: Primary clamping device on DC input rail before DC/DC converter stage. Use Value: 21.2 V clamping voltage limits stress on 36 V-rated input capacitors and controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A | Lower PPPM (400 W), SMA package (smaller thermal mass), same VBR range but higher VC (24.4 V) | Not rated for automotive use; MSL level 1 but not AEC-Q101 qualified | Select when space-constrained and surge energy is ≤400 W; avoid in automotive or high-reliability industrial designs |
| TPSMC15AHM3_B/H | Identical electrical specs; halogen-free molding compound and whisker-tested terminations (JESD201 Class 2) | Same automotive qualification; preferred where RoHS + halogen-free compliance is mandated | Direct material-compliance upgrade path; no design or layout change required |
Compared with SMAJ15A and TPSMC15AHM3_B/H, the TPSMC15AHE3_B/H offers the optimal balance of 1500 W surge capacity, AEC-Q101 validation, and RoHS compliance - making it the default choice for automotive power protection where both reliability and regulatory alignment are mandatory.
Availability
TPSMC15AHE3_B/H is available at Aetrix Electronics and suitable for automotive control units, industrial sensor interfaces, motor drive subsystems, and telecom DC power inputs requiring stable component supply with guaranteed long-term availability.
Supply support for TPSMC15AHE3_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 high-reliability and automotive-grade performance.
The TPSMC series was engineered specifically for high-energy transient suppression in harsh-environment applications - targeting automotive power distribution, industrial automation, and transportation infrastructure where AEC-Q101 compliance and 185 °C operation are critical.
FAQ
What is the clamping voltage of the TPSMC15AHE3_B/H at its rated peak pulse current?
The TPSMC15AHE3_B/H has a maximum clamping voltage (VC) of 21.2 V when subjected to its peak pulse current (IPPM) of 70.8 A under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and ensures downstream components see limited overvoltage during surge events. The TPSMC15AHE3_B/H maintains this clamping performance across its full operating temperature range.
Is the TPSMC15AHE3_B/H qualified for automotive applications?
Yes, the TPSMC15AHE3_B/H is AEC-Q101 qualified and explicitly designated for automotive use, as confirmed by Vishay's ordering code suffix "HE3" and documentation revision 19-Jan-2024. It meets requirements for temperature cycling, high-temperature reverse bias, and surge endurance. The TPSMC15AHE3_B/H is intended for under-hood and body-control module applications where reliability at +185 °C is mandatory.
What does the "HE3" suffix indicate in TPSMC15AHE3_B/H?
The "HE3" suffix in TPSMC15AHE3_B/H denotes a RoHS-compliant, AEC-Q101-qualified version with matte tin-plated leads meeting J-STD-002 and JESD22-B102 solderability standards. The "B/H" indicates packaging in 7-inch tape-and-reel format (H = reel size code) with revision B. The TPSMC15AHE3_B/H is distinct from HM3 variants, which add halogen-free compound compliance.
How does the TPSMC15AHE3_B/H compare to bidirectional TVS diodes?
The TPSMC15AHE3_B/H is unidirectional and optimized for DC line protection where only positive-going transients occur - such as 12 V or 24 V power rails. Unlike bidirectional devices, it provides lower leakage (<1 µA at 12.8 V) and tighter VBR tolerance. The TPSMC15AHE3_B/H is not suitable for AC signal lines or applications requiring symmetrical clamping; those require dedicated bidirectional parts like TPSMC15CA.
What is the thermal derating behavior of the TPSMC15AHE3_B/H above 25 °C ambient?
The TPSMC15AHE3_B/H follows standard derating per Figure 2 in Vishay document 88407: peak pulse power decreases linearly from 100% at 25 °C to ~50% at 125 °C ambient, based on mounting on 8.0 mm × 8.0 mm copper pads. Its 185 °C maximum junction temperature allows sustained operation in high-ambient environments when PCB layout provides adequate thermal relief. The TPSMC15AHE3_B/H must be applied within these derated limits to maintain reliability.
TPSMC15AHE3_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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 70.8A
- 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)
TPSMC15AHE3_B/H FAQ
1.How can I place an order for TPSMC15AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC15AHE3_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 TPSMC15AHE3_B/H reliable?
The price and inventory of TPSMC15AHE3_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 TPSMC15AHE3_B/H is usually 5 days.
3.What payment methods are accepted for TPSMC15AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC15AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC15AHE3_B/H?
TPSMC15AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC15AHE3_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 TPSMC15AHE3_B/H?
For technical support, including TPSMC15AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC15AHE3_B/H requirements.
6.How does Aetrix verify that TPSMC15AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All TPSMC15AHE3_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 TPSMC15AHE3_B/H meets industry standards.
7.What is the process for return or replacement of TPSMC15AHE3_B/H?
All TPSMC15AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC15AHE3_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 TPSMC15AHE3_B/H part is unused and in its original packaging.
Return procedure for TPSMC15AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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