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Vishay General Semiconductor - Diodes Division TPSMC9.1HE3_A/H
- Part No.:
- TPSMC9.1HE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC9.1HE3_A/H.pdf
- Description:
- TVS DIODE 7.37VWM 13.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,368
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Product details
Overview
TPSMC9.1HE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, designed for clamping fast voltage transients on power and signal lines. It features 9.1 V breakdown voltage (VBR min/max: 8.19–10.0 V), 7.37 V stand-off voltage (VWM), 13.8 V clamping voltage (VC) at 109 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power supplies.
For engineers reviewing the TPSMC9.1HE3_A/H datasheet, TPSMC9.1HE3_A/H pinout, TPSMC9.1HE3_A/H application, or TPSMC9.1HE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 185 °C junction temperature rating, low incremental surge resistance, and compatibility with high-reliability PCB layouts requiring MSL Level 1 and JESD201 Class 2 whisker resistance.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for high-temperature stability and fast response to ESD and lightning-induced surges. Its junction design ensures stable clamping performance across -65 °C to +185 °C operating range and meets automotive-grade reliability requirements per AEC-Q101.
The device operates exclusively in unidirectional mode with cathode band marking, delivers 13.8 V clamping at 109 A IPPM under 10/1000 µs waveform, and maintains ≤50 µA reverse leakage at VWM = 7.37 V and ≤500 µA at TJ = 150 °C - enabling robust protection in DC-fed sensor interfaces and 12 V automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 8.19 V / 10.0 V - defines reliable avalanche initiation threshold under 1 mA test current; ensures consistent turn-on before downstream component damage. |
| VWM | 7.37 V - maximum continuous reverse working voltage; allows safe operation on 5–6 V logic rails or 12 V systems with margin. |
| VC @ IPPM | 13.8 V at 109 A - clamped voltage during 10/1000 µs surge; limits stress on protected 15 V-rated ICs or MOSFETs. |
| PPPM | 1500 W - peak pulse power handling capability; supports high-energy transients from inductive load switching in motor control. |
| TJ max | +185 °C - extended junction temperature rating; enables use in under-hood automotive modules without derating. |
| AEC-Q101 | Qualified - certified for automotive electronic systems; validates reliability under temperature cycling, humidity, and mechanical stress. |
| MSL Level | Level 1 (per J-STD-020) - no floor life limitation; supports standard SMT reflow without baking preconditioning. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, molded plastic case meeting UL 94 V-0 flammability rating; matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line (e.g., ground or return path); conducts during reverse surge when cathode is positive. |
| Cathode | Clamping reference terminal | Connected to higher-potential side (e.g., VIN, signal line); defines polarity and initiates avalanche breakdown when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| High-temperature junction capability | TJ up to +185 °C enables deployment in engine control units and power inverters without thermal derating. |
| AEC-Q101 qualification | Validated for automotive electronics including body control modules and ADAS sensor interfaces. |
| 1500 W peak pulse power | Handles 10/1000 µs transients from relay coil flyback or load dump events in 12 V systems. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage exposure to protected devices while maintaining fast response time (<1 ns). |
| JESD201 Class 2 whisker resistance | HE3 suffix confirms mitigation of tin whisker growth - critical for long-life industrial and automotive applications. |
Applications
| Automotive Power Line Protection | Industrial Sensor Signal Clamping |
|---|---|
Use Scenario: Protecting 12 V supply rail in body control module against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery input and LDO regulator input. Use Value: Clamps transients to ≤13.8 V, preventing latch-up or gate oxide damage in downstream PMICs rated for 16 V absolute maximum. |
Use Scenario: Safeguarding analog output of pressure sensor connected to PLC analog input card. IC Role / Device Role / Timing Role: Standoff protection element on 4–20 mA current loop signal line. Use Value: Limits induced surges to <14 V while maintaining <50 µA leakage at 7.37 V, preserving signal accuracy and ADC reference integrity. |
| Consumer Power Adapter Input Stage | Telecom DC Feeder Protection |
Use Scenario: Secondary-side overvoltage suppression in USB-C PD adapter after buck converter output. IC Role / Device Role / Timing Role: Fast-clamping device parallel to 5–20 V output bus. Use Value: Responds in <1 ns to fast-rising transients from MOSFET switching noise, holding output within USB spec limits. |
Use Scenario: Surge protection on -48 V DC feeder line feeding remote radio head in 5G base station. IC Role / Device Role / Timing Role: Unidirectional clamping device referenced to system ground on negative supply rail. Use Value: Withstands repeated 1500 W pulses per ITU-T K.21 basic level, ensuring uptime in outdoor telecom infrastructure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A | Lower PPPM (400 W), SMA package (smaller footprint), VC = 14.4 V at 28.5 A | Suitable for lower-energy consumer electronics; not AEC-Q101 qualified or rated for >150 °C | Select when space-constrained and surge energy is limited to <400 W; avoid in automotive under-hood use. |
| 1.5KE9.1A | Through-hole DO-201 package, same VBR/VC, but larger size and lower thermal dissipation in SMT layout | Used in legacy industrial power supplies where board real estate and rework tolerance outweigh SMT density needs | Choose only if through-hole assembly is mandated; otherwise TPSMC9.1HE3_A/H offers superior thermal performance and AEC-Q101 compliance. |
Compared with SMAJ9.0A and 1.5KE9.1A, the TPSMC9.1HE3_A/H provides higher surge robustness (1500 W vs. 400 W/1500 W), automotive qualification, and surface-mount scalability - making it the preferred choice for new designs targeting high-reliability 12 V systems.
Availability
TPSMC9.1HE3_A/H is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interface protection, and telecom DC feeder applications requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for TPSMC9.1HE3_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 validation.
The TPSMC9.1HE3_A/H belongs to Vishay's PAR® series of high-power surface-mount TVS diodes, engineered specifically for demanding transient suppression in automotive, industrial, and telecom power systems where high junction temperature and AEC-Q101 compliance are mandatory.
FAQ
What is the breakdown voltage tolerance for TPSMC9.1HE3_A/H?
The TPSMC9.1HE3_A/H has a breakdown voltage (VBR) range of 8.19 V to 10.0 V at 1 mA test current, corresponding to ±10 % tolerance around the nominal 9.1 V rating. This tolerance is confirmed in the Electrical Characteristics table of Vishay document 88407 and applies directly to the TPSMC9.1HE3_A/H variant marked "DLP" on the device body. The HE3_A/H suffix denotes RoHS-compliant, AEC-Q101-qualified production with MSL Level 1 handling.
Is TPSMC9.1HE3_A/H suitable for bidirectional transient protection?
No, the TPSMC9.1HE3_A/H is strictly unidirectional, as explicitly stated in the Features section of Vishay document 88407: "Available in uni-directional polarity only." It must be installed with the cathode band oriented toward the higher-potential side of the protected line. For bidirectional protection, a separate part such as the SMBJ9.0CA would be required - the TPSMC9.1HE3_A/H does not support symmetrical clamping in either polarity.
What is the maximum clamping voltage of TPSMC9.1HE3_A/H under surge conditions?
The maximum clamping voltage (VC) of the TPSMC9.1HE3_A/H is 13.8 V, measured at 109 A peak pulse current (IPPM) using the standardized 10/1000 µs double-exponential waveform. This value is specified in the Electrical Characteristics table for the TPSMC9.1 device type and is guaranteed across the full operating temperature range per Vishay's test methodology in document 88407.
Does TPSMC9.1HE3_A/H meet automotive qualification standards?
Yes, the TPSMC9.1HE3_A/H is AEC-Q101 qualified, as noted in both the Features section and the Notes on page 3 of Vishay document 88407. This qualification covers stress tests including temperature cycling, humidity bias, mechanical shock, and accelerated life testing - confirming suitability for automotive electronic control units, body electronics, and powertrain subsystems.
What is the package type and mounting specification for TPSMC9.1HE3_A/H?
The TPSMC9.1HE3_A/H uses the DO-214AB (SMC) surface-mount package, with mechanical dimensions documented on page 4 of Vishay document 88407. It requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads at each terminal for optimal thermal and surge current handling, and is compatible with standard reflow profiles per J-STD-020 MSL Level 1 - no pre-baking required prior to assembly.
TPSMC9.1HE3_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):
- 7.37V
- Voltage - Breakdown (Min):
- 8.19V
- Voltage - Clamping (Max) @ Ipp:
- 13.8V
- Current - Peak Pulse (10/1000µs):
- 109A
- 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)
TPSMC9.1HE3_A/H FAQ
1.How can I place an order for TPSMC9.1HE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC9.1HE3_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 TPSMC9.1HE3_A/H reliable?
The price and inventory of TPSMC9.1HE3_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 TPSMC9.1HE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMC9.1HE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC9.1HE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC9.1HE3_A/H?
TPSMC9.1HE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC9.1HE3_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 TPSMC9.1HE3_A/H?
For technical support, including TPSMC9.1HE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC9.1HE3_A/H requirements.
6.How does Aetrix verify that TPSMC9.1HE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMC9.1HE3_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 TPSMC9.1HE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMC9.1HE3_A/H?
All TPSMC9.1HE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC9.1HE3_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 TPSMC9.1HE3_A/H part is unused and in its original packaging.
Return procedure for TPSMC9.1HE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC9.1HE3_A/H Tags
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Diodes Incorporated
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