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Vishay General Semiconductor - Diodes Division TPSMC15AHE3_B/I
- Part No.:
- TPSMC15AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC15AHE3_B/I.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,281
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Product details
Overview
TPSMC15AHE3_B/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping fast-rising voltage transients on power and signal lines. It features 15 V breakdown voltage (VBR = 14.3–15.8 V at 1 mA), 12.8 V stand-off voltage (VWM), 21.2 V maximum clamping voltage (VC) at 70.8 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - used in automotive power rail protection and industrial sensor interface circuits.
For engineers reviewing the TPSMC15AHE3_B/I datasheet, TPSMC15AHE3_B/I pinout, TPSMC15AHE3_B/I application, or TPSMC15AHE3_B/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, MSL Level 1 rating, 10 µA max reverse leakage at VWM, and compatibility with high-temperature PCB reflow profiles up to 260 °C.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for stable clamping under repetitive surge stress. Its junction design supports operation from –65 °C to +185 °C and delivers consistent VBR temperature coefficient of +0.076 %/°C, enabling predictable performance across automotive under-hood environments.
The device meets JESD201 Class 2 whisker resistance and J-STD-020 MSL Level 1 requirements. With 3.5 V max forward voltage at 100 A and 200 A non-repetitive surge rating (8.3 ms half-sine), it provides robust overvoltage protection for MOSFET gate drivers and DC-DC converter inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 14.3 / 15.0 / 15.8 V at 1 mA - defines precise clamping onset threshold for reliable overvoltage detection |
| VWM | 12.8 V - maximum continuous working voltage before leakage exceeds 1 µA, ensuring low-power standby integrity |
| VC @ IPPM | 21.2 V at 70.8 A - limits downstream voltage during 1500 W transient, protecting 24 V system ICs |
| PPPM | 1500 W (10/1000 µs) - handles high-energy surges from inductive load switching in automotive ECUs |
| TJ max | +185 °C - enables placement near heat sources (e.g., power modules) without derating in engine control units |
| Polarity | Unidirectional - protects against positive-going transients only; requires external circuit polarity alignment |
| MSL Level | Level 1 (J-STD-020) - supports unlimited floor life and standard reflow without baking preconditioning |
Pinout & Package
Package: SMC (DO-214AB), molded case with matte tin-plated leads, cathode indicated by color band. Dimensions: 6.22 mm × 5.59 mm × 2.41 mm (L × W × H); mounting pad layout per Vishay spec 88407 page 4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to protected line's lower-potential side (e.g., ground return or negative rail) |
| Cathode | Current exit point during forward conduction; clamping node | Connected to protected line's higher-potential side (e.g., 12 V/24 V supply or signal line) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS power domains |
| Junction temperature capability | Rated for continuous operation up to +185 °C - eliminates thermal derating in under-hood designs |
| Clamping ratio (VC/VBR) | 1.41 - tight ratio ensures minimal overvoltage margin while maintaining robust surge handling |
| Low incremental surge resistance | Enables rapid energy dissipation during sub-microsecond transients, reducing stress on downstream FETs |
| RoHS-compliant & halogen-free option | HE3 suffix denotes RoHS compliance; HM3 suffix adds halogen-free molding compound for strict environmental programs |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power inputs in engine control modules from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery rail and DC-DC input stage. Use Value: Limits transient voltage to ≤21.2 V during 1500 W surges, preventing damage to LDOs and microcontrollers rated for 28 V absolute max. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA at 12.8 V) TVS on signal line adjacent to ADC front-end. Use Value: Maintains signal integrity with <10 pF junction capacitance at zero bias, avoiding bandwidth degradation in 100 kHz sensor channels. |
| Telecom DC Power Input Protection | Consumer Device USB Port Surge Suppression |
Use Scenario: Safeguarding PoE-powered equipment inputs against induced lightning surges on outdoor Ethernet cables. IC Role / Device Role / Timing Role: Primary clamping device on 48 V DC input before isolation transformer and regulator. Use Value: Handles 200 A 8.3 ms surge (IFSM) without failure, meeting IEC 61000-4-5 Level 4 immunity requirements. |
Use Scenario: Adding secondary-level surge protection on USB VBUS line in portable speakers and smart home hubs. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) unidirectional TVS placed after primary fuse and before USB controller. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) to <25 V within 1 ns, preserving USB 2.0 signal eye diagram integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15AHE3_A/H | Lower peak pulse power (600 W vs. 1500 W); same VBR range and SMC-compatible SMB (DO-214AA) package | Not suitable for high-energy automotive load dump; limited to consumer-grade I/O protection | Select when space constraints require smaller footprint and surge energy is ≤600 W |
| TPSMC15AHM3_B/I | Identical electrical specs; halogen-free molding compound and same AEC-Q101 qualification | No functional difference; required only where halogen-free compliance is mandated by OEM or regional regulation | Choose TPSMC15AHM3_B/I if RoHS + halogen-free certification is contractually required |
Compared with TPSMC15AHE3_B/I, SMBJ15AHE3_A/H offers reduced surge handling in a smaller package, while TPSMC15AHM3_B/I provides identical protection with halogen-free materials - making the HE3 variant optimal for cost-sensitive, high-energy automotive applications where halogen content is unrestricted.
Availability
TPSMC15AHE3_B/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power inputs requiring stable component supply, AEC-Q101 qualification, and high-temperature reliability.
Supply support for TPSMC15AHE3_B/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 reliability, thermal performance, and automotive-grade validation.
The TPSMC15AHE3_B/I belongs to Vishay's PAR® series of high-power TVS diodes, engineered specifically for harsh-environment transient suppression in automotive, industrial, and telecom infrastructure where junction temperatures exceed 150 °C.
FAQ
What is the maximum clamping voltage of the TPSMC15AHE3_B/I under specified test conditions?
The TPSMC15AHE3_B/I has a maximum clamping voltage (VC) of 21.2 V when subjected to its rated peak pulse current of 70.8 A using a 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88407 and ensures downstream components see no more than 21.2 V during transient events. The TPSMC15AHE3_B/I maintains this clamping performance across its full operating temperature range.
Is the TPSMC15AHE3_B/I qualified for automotive applications?
Yes, the TPSMC15AHE3_B/I is AEC-Q101 qualified, as confirmed in the "MECHANICAL DATA" section of Vishay document 88407. The HE3 suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified construction. This qualification covers stress tests including temperature cycling, humidity bias, and mechanical shock - validating the TPSMC15AHE3_B/I for use in engine control, body electronics, and ADAS systems.
What does the "B/I" suffix mean in TPSMC15AHE3_B/I?
The "B/I" suffix in TPSMC15AHE3_B/I indicates the revision code ("B") and packaging format ("I"). "I" specifies 13-inch diameter plastic tape and reel with 3500 units per reel, per Vishay's ordering information table on page 2 of document 88407. The "B" revision reflects a controlled manufacturing change documented in the datasheet revision history, with no impact on electrical or mechanical specifications of the TPSMC15AHE3_B/I.
Does the TPSMC15AHE3_B/I have a bidirectional configuration option?
No, the TPSMC15AHE3_B/I is unidirectional only, as stated in the FEATURES section of Vishay document 88407. It protects against positive-going transients on the cathode side relative to anode. For bidirectional protection, Vishay offers separate part numbers such as TPSMC15CAHE3_B/I - a distinct device with symmetrical clamping and different marking code, not interchangeable with the TPSMC15AHE3_B/I.
What is the thermal resistance junction-to-ambient (RθJA) for the TPSMC15AHE3_B/I?
Vishay does not publish a specific RθJA value for the TPSMC15AHE3_B/I in document 88407. Thermal performance depends on PCB layout; the datasheet specifies that ratings assume mounting on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads at each terminal. Derating curves in Figure 2 of the TPSMC15AHE3_B/I datasheet show pulse power reduction above 25 °C ambient, enabling thermal design based on actual board copper area and airflow.
TPSMC15AHE3_B/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:
- 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/I FAQ
1.How can I place an order for TPSMC15AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC15AHE3_B/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 TPSMC15AHE3_B/I reliable?
The price and inventory of TPSMC15AHE3_B/I 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/I is usually 5 days.
3.What payment methods are accepted for TPSMC15AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC15AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC15AHE3_B/I?
TPSMC15AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC15AHE3_B/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 TPSMC15AHE3_B/I?
For technical support, including TPSMC15AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC15AHE3_B/I requirements.
6.How does Aetrix verify that TPSMC15AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All TPSMC15AHE3_B/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 TPSMC15AHE3_B/I meets industry standards.
7.What is the process for return or replacement of TPSMC15AHE3_B/I?
All TPSMC15AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC15AHE3_B/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 TPSMC15AHE3_B/I part is unused and in its original packaging.
Return procedure for TPSMC15AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC15AHE3_B/I Tags
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