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Vishay General Semiconductor - Diodes Division TPSMC9.1AHE3_B/I
- Part No.:
- TPSMC9.1AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC9.1AHE3_B/I.pdf
- Description:
- TVS DIODE 7.78VWM 13.4VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,170
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Product details
Overview
TPSMC9.1AHE3_B/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on power and signal lines. It features 9.1 V nominal breakdown voltage (VBR), 7.78 V stand-off voltage (VWM), 1500 W peak pulse power (10/1000 µs), 13.4 V maximum clamping voltage at 112 A peak pulse current, and operates up to +185 °C junction temperature.
For engineers reviewing the TPSMC9.1AHE3_B/I datasheet, TPSMC9.1AHE3_B/I pinout, TPSMC9.1AHE3_B/I application, or TPSMC9.1AHE3_B/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, MSL Level 1 rating, 10 µA max reverse leakage at VWM, and compatibility with high-reliability automotive and industrial PCB layouts requiring robust surge immunity.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping performance under repetitive surge stress. Its 185 °C maximum junction temperature enables operation in under-hood automotive environments and high-temperature industrial enclosures without derating penalties.
The device responds in sub-nanosecond time to transient events and maintains low incremental surge resistance during 10/1000 µs waveform surges. Its cathode-band polarity marking and matte tin-plated leads comply with J-STD-002 solderability and JESD 22-B102 whisker resistance standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 8.65 / 9.10 / 9.55 V - ensures reliable triggering above system operating voltage while avoiding false trips |
| VWM | 7.78 V - defines maximum continuous reverse voltage before leakage exceeds 10 µA at 25 °C |
| VC @ IPPM | 13.4 V - clamps 112 A surge to safe level for downstream 12 V logic or power ICs |
| PPPM | 1500 W - handles high-energy transients from inductive switching or ESD per IEC 61000-4-5 |
| TJ max. | +185 °C - supports AEC-Q101 automotive qualification and extended thermal margin in sealed enclosures |
| Polarity | Unidirectional - protects DC-biased lines such as 12 V supply rails or CAN bus termination |
| Package | SMC (DO-214AB) - industry-standard footprint with 8.0 mm × 8.0 mm copper pad requirement for thermal dissipation |
Pinout & Package
Package: SMC (DO-214AB), molded case with UL 94 V-0 flammability rating; cathode indicated by color band; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| 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 reverse-biased clamping | Connected to higher-potential side (e.g., 12 V rail); marked by visible band |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable VBR drift < ±5 % over 1000 hrs at 150 °C, critical for long-life automotive modules |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard |
| MSL Level 1 (260 °C peak) | Allows single-reflow assembly without moisture sensitivity concerns or baking requirements |
| 1500 W peak pulse power (10/1000 µs) | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 4 surges without degradation |
| Low clamping ratio (VC/VBR ≈ 1.47) | Minimizes voltage overshoot during clamping, protecting 12 V-rated components with tight margins |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp transients before they reach PMICs or microcontrollers. Use Value: Clamps 12 V rail to ≤13.4 V during 1500 W surges, preserving 12 V logic integrity and meeting ISO 16750-2 requirements. | Use Scenario: Shielding analog outputs of pressure or temperature sensors from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: TVS mounted at connector interface to shunt fast transients before reaching ADC input or op-amp buffer. Use Value: Sub-nanosecond response limits induced voltage spike to <13.4 V, preventing ADC saturation or latch-up in 3.3 V/5 V sensor signal chains. |
| Telecom DC Power Input Protection | Consumer Power Adapter Output Clamp |
Use Scenario: Safeguarding PoE-powered switches and base stations from lightning-induced surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Primary clamping device on DC input stage, coordinated with upstream fuse and common-mode choke. Use Value: Withstands repeated 10/1000 µs surges up to 1500 W while maintaining VWM = 7.78 V - suitable for cascaded protection with higher-voltage TVS stages. | Use Scenario: Preventing overvoltage damage to USB-C PD controllers and Type-C port electronics during adapter plug/unplug events. IC Role / Device Role / Timing Role: Secondary-level TVS on 5–20 V output rails to absorb residual transients escaping primary AC/DC stage suppression. Use Value: Low 10 µA leakage at 7.78 V avoids loading regulated outputs; RoHS-compliant HE3 suffix meets global consumer regulatory mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A | Lower PPPM (600 W), same VBR range (8.55–9.45 V), SMB package (smaller footprint, lower thermal mass) | Not rated for AEC-Q101; limited to commercial/industrial use where automotive qualification is not required | Select when board space is constrained and surge energy is ≤600 W; verify thermal relief on 5.0 mm × 5.0 mm pads |
| TPSMC9.0AHE3_B/I | VBR nominal 9.0 V (vs. 9.1 V), identical package, AEC-Q101 qualified, same 1500 W rating and 185 °C TJ max | No functional difference in circuit behavior; minor VBR tolerance shift within same family spec limits | Drop-in substitute if 9.0 V VBR aligns better with system margin analysis; same sourcing, qualification, and layout |
Compared with SMBJ9.0A, TPSMC9.1AHE3_B/I delivers 2.5× higher surge energy handling and automotive qualification; versus TPSMC9.0AHE3_B/I, it offers identical reliability and layout compatibility with only a 0.1 V VBR increase-negligible for most 12 V rail designs.
Availability
TPSMC9.1AHE3_B/I is available at Aetrix Electronics and suitable for automotive control units, industrial sensor interfaces, telecom power supplies, and consumer USB-C adapters requiring stable component supply across multi-year production cycles.
Supply support for TPSMC9.1AHE3_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, MOSFETs, and protection devices with emphasis on high-reliability and automotive-grade performance.
The TPSMC series belongs to Vishay's PAR® transient voltage suppressor product line, engineered specifically for high-energy surge immunity in harsh environments including automotive power systems and industrial automation.
FAQ
What is the exact breakdown voltage range for TPSMC9.1AHE3_B/I?
The TPSMC9.1AHE3_B/I has a guaranteed breakdown voltage (VBR) range of 8.65 V (minimum) to 9.55 V (maximum) at 1 mA test current, with a nominal value of 9.10 V. This range is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet revision 19-Jan-2024 (Document Number: 88407). The TPSMC9.1AHE3_B/I maintains this specification across its full operating temperature range.
Is TPSMC9.1AHE3_B/I qualified for automotive applications?
Yes, TPSMC9.1AHE3_B/I is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet under "FEATURES" and confirmed in the ordering information table. The HE3 suffix denotes RoHS-compliant and AEC-Q101 qualified construction. This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD, making TPSMC9.1AHE3_B/I suitable for under-hood and body-control module applications.
What is the maximum clamping voltage of TPSMC9.1AHE3_B/I and at what current is it specified?
The maximum clamping voltage (VC) of TPSMC9.1AHE3_B/I is 13.4 V, measured at the peak pulse current (IPPM) of 112 A using a 10/1000 µs waveform. This value is listed in the Electrical Characteristics table of the Vishay datasheet and reflects worst-case clamping performance under standardized surge conditions. The TPSMC9.1AHE3_B/I achieves this with a clamping ratio of approximately 1.47 (VC/VBR).
Does TPSMC9.1AHE3_B/I have a unidirectional or bidirectional configuration?
TPSMC9.1AHE3_B/I is unidirectional only, as confirmed in the Vishay datasheet under "FEATURES": "Available in unidirectional polarity only." Its cathode is marked by a color band, and it conducts in forward bias while clamping reverse transients. This configuration is appropriate for DC-biased lines like 12 V automotive rails or 5 V/3.3 V logic supplies where polarity is fixed.
What is the moisture sensitivity level (MSL) rating for TPSMC9.1AHE3_B/I?
TPSMC9.1AHE3_B/I meets MSL Level 1 per J-STD-020, with a maximum lead-free reflow peak temperature of 260 °C. This rating is documented in the "FEATURES" section of the Vishay datasheet and means the device can be stored indefinitely at ambient conditions and assembled using standard single-reflow profiles without baking. The TPSMC9.1AHE3_B/I's MSL Level 1 eliminates moisture-related assembly risks in high-volume manufacturing.
TPSMC9.1AHE3_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):
- 7.78V
- Voltage - Breakdown (Min):
- 8.65V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- Current - Peak Pulse (10/1000µs):
- 112A
- 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)
TPSMC9.1AHE3_B/I FAQ
1.How can I place an order for TPSMC9.1AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC9.1AHE3_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 TPSMC9.1AHE3_B/I reliable?
The price and inventory of TPSMC9.1AHE3_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 TPSMC9.1AHE3_B/I is usually 5 days.
3.What payment methods are accepted for TPSMC9.1AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC9.1AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC9.1AHE3_B/I?
TPSMC9.1AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC9.1AHE3_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 TPSMC9.1AHE3_B/I?
For technical support, including TPSMC9.1AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC9.1AHE3_B/I requirements.
6.How does Aetrix verify that TPSMC9.1AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All TPSMC9.1AHE3_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 TPSMC9.1AHE3_B/I meets industry standards.
7.What is the process for return or replacement of TPSMC9.1AHE3_B/I?
All TPSMC9.1AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC9.1AHE3_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 TPSMC9.1AHE3_B/I part is unused and in its original packaging.
Return procedure for TPSMC9.1AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC9.1AHE3_B/I Tags
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