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Vishay General Semiconductor - Diodes Division TPSMC9.1HE3_A/I
- Part No.:
- TPSMC9.1HE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC9.1HE3_A/I.pdf
- Description:
- TVS DIODE 7.37VWM 13.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPSMC9.1HE3_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 rails and signal lines. It features 1500 W peak pulse power (10/1000 μs), 8.19–10.0 V breakdown voltage (VBR), 7.37 V stand-off voltage (VWM), 13.8 V max clamping voltage at 109 A (VC), and AEC-Q101 qualification for automotive electronics protection.
For engineers reviewing the TPSMC9.1HE3_A/I datasheet, TPSMC9.1HE3_A/I pinout, TPSMC9.1HE3_A/I application, or TPSMC9.1HE3_A/I equivalent, this page delivers verified electrical parameters, JEDEC-compliant packaging, thermal derating curves, clamping performance under surge conditions, and direct-fit alternatives for ESD/surge-hardened DC power input stages and sensor interface protection.
Technical Context
This TVS operates as a unidirectional silicon avalanche diode with passivated anisotropic rectifier technology, enabling stable clamping down to -65 °C and up to +185 °C junction temperature. Its low incremental surge resistance and fast response time ensure effective suppression of sub-microsecond transients without latch-up or degradation under repeated stress.
The device is rated for 200 A non-repetitive forward surge current (8.3 ms half-sine), exhibits ≤100 nA reverse leakage at 7.37 V (TA = 25 °C), and maintains <50 μA leakage at 150 °C - critical for high-temperature automotive modules and industrial controllers where thermal stability directly impacts system-level reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 8.19 V / 10.0 V at 1 mA - defines minimum voltage at which avalanche conduction begins; ensures reliable turn-on before downstream IC damage. |
| VWM | 7.37 V - maximum continuous reverse working voltage; sets safe operating margin below breakdown for 5 V–12 V rail protection. |
| VC @ IPPM | 13.8 V at 109 A - clamped voltage during 1500 W transient; limits stress on protected MOSFET gate or MCU I/O pin. |
| PPPM | 1500 W (10/1000 μs waveform) - peak surge energy handling capacity; supports IEC 61000-4-5 Level 4 compliance when properly mounted. |
| TJ max | +185 °C - enables use in under-hood automotive ECUs and industrial motor drives without thermal derating penalties. |
| AEC-Q101 | Qualified - confirms robustness against mechanical shock, temperature cycling, and humidity for automotive-grade deployment. |
| Package | DO-214AB (SMC) - industry-standard 2-pin surface-mount outline with 8.0 mm × 8.0 mm copper pad requirement for thermal dissipation. |
Pinout & Package
DO-214AB (SMC) package: cathode-indicating band on one end; anode and cathode terminals aligned along body axis; matte tin-plated leads compliant with J-STD-002 solderability and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-voltage return path; forms current path during reverse-biased clamping event. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 12 V supply or CAN bus); absorbs transient energy into ground via anode. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Enables single-device protection against IEC 61000-4-5 4 kV surge on 12 V systems without parallel staging. |
| 185 °C junction rating | Eliminates need for thermal derating in engine control units and power inverters operating above 125 °C ambient. |
| MSL Level 1 (260 °C) | Supports lead-free reflow without moisture sensitivity concerns - no baking required prior to SMT assembly. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage overshoot during fast transients, preserving margin for 16 V-rated components. |
| Junction passivation | Reduces surface leakage and improves long-term reliability in humid or contaminated environments. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: 12 V battery-fed ECU power rail exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamping diode placed between input fuse and DC-DC converter input. Use Value: Limits transient voltage to ≤13.8 V, preventing overvoltage shutdown or gate oxide rupture in upstream regulators. |
Use Scenario: Analog output line of pressure sensor in factory automation PLC module subject to cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF) unidirectional clamp on 0–5 V ratiometric output trace. Use Value: Clamps ESD pulses (IEC 61000-4-2 ±8 kV contact) within 1 ns while adding <0.5 % gain error at DC. |
| Telecom DC Power Feeder Protection | Consumer Appliance Motor Driver Gate Clamp |
Use Scenario: -48 V telecom power feed line entering remote radio head enclosure with lightning exposure risk. IC Role / Device Role / Timing Role: Primary surge arrestor on input side of isolated DC-DC converter, coordinated with secondary-side TVS. Use Value: Absorbs 1500 W surge energy per IEC 61000-4-5 Combination Wave (1.2/50 μs + 8/20 μs), limiting let-through to <20 V. |
Use Scenario: Half-bridge gate drive node in washing machine inverter exposed to shoot-through-induced voltage spikes. IC Role / Device Role / Timing Role: Snubber-connected unidirectional TVS across high-side MOSFET source-drain to clamp Miller-induced overshoot. Use Value: Suppresses >100 V spikes to <13.8 V within 100 ps, preventing false turn-on and gate driver latch-up. |
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), higher VC (15.4 V @ 25.6 A), SMA package (smaller thermal mass) | Limited to lower-energy transients (IEC 61000-4-2 only); unsuitable for ISO 7637-2 Pulse 5a or IEC 61000-4-5 Level 3+ | Select when board space is constrained and surge threat level is limited to ESD and minor inductive kickback. |
| TPSMC9.0AHE3_A/I | Identical DO-214AB package and AEC-Q101 qualification; tighter VBR tolerance (±5 % vs. ±10 % for TPSMC9.1HE3_A/I), VWM = 7.78 V | Better suited for 9 V nominal rails requiring tighter voltage margin; same thermal and surge capability | Prefer for new designs targeting 9 V systems where VWM margin over 9 V supply must exceed 10 %. |
Compared with SMAJ9.0A, TPSMC9.1HE3_A/I delivers 275 % higher surge power handling and lower clamping voltage under identical test conditions; versus TPSMC9.0AHE3_A/I, it offers wider VBR tolerance but identical thermal and mechanical specs - making it ideal for cost-sensitive automotive Tier 2 applications where ±10 % VBR is acceptable.
Availability
TPSMC9.1HE3_A/I is available at Aetrix Electronics and suitable for automotive power input protection, industrial sensor signal line clamp, telecom DC power feeder protection, and consumer appliance motor driver gate clamp requiring stable component supply across extended temperature ranges and high-reliability production cycles.
Supply support for TPSMC9.1HE3_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, TVS devices, and optoelectronics with emphasis on high-reliability, high-temperature, and automotive-qualified components.
The TPSMC series was developed specifically for AEC-Q101-compliant transient suppression in harsh-environment automotive and industrial power systems, prioritizing thermal robustness, surge repeatability, and JEDEC-standard packaging.
FAQ
What is the maximum clamping voltage of the TPSMC9.1HE3_A/I under full-rated surge current?
The TPSMC9.1HE3_A/I has a maximum clamping voltage (VC) of 13.8 V when subjected to its peak pulse current (IPPM) of 109 A using a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 standards and confirmed in the Vishay datasheet revision 22-Jul-16. The TPSMC9.1HE3_A/I maintains this clamping performance across its full operating temperature range (-65 °C to +185 °C).
Is the TPSMC9.1HE3_A/I RoHS-compliant and halogen-free?
Yes, the TPSMC9.1HE3_A/I carries the HE3 suffix, indicating full RoHS compliance per Directive 2011/65/EU and halogen-free status per IEC 61249-2-21. The molding compound meets UL 94 V-0 flammability rating, and the matte tin-plated leads satisfy J-STD-002 solderability requirements. These attributes are documented in the official Vishay datasheet for TPSMC6.8 thru TPSMC47A.
Does the TPSMC9.1HE3_A/I require derating at elevated ambient temperatures?
Yes, the TPSMC9.1HE3_A/I must be derated above TA = 25 °C per Figure 2 in the Vishay datasheet. At 125 °C ambient, its peak pulse power drops to approximately 65 % of the rated 1500 W. Derating is linear from 25 °C to 185 °C junction temperature, and proper PCB copper pad layout (8.0 mm × 8.0 mm per terminal) is mandatory to achieve published thermal performance for the TPSMC9.1HE3_A/I.
Can the TPSMC9.1HE3_A/I be used in bidirectional configurations?
No, the TPSMC9.1HE3_A/I is unidirectional only, as explicitly stated in the Vishay datasheet under FEATURES. It conducts in reverse bias during clamping and blocks forward current up to 3.5 V at 100 A. For bidirectional protection, a separate device such as the SMBJ9.0CA or dual-diode array would be required - the TPSMC9.1HE3_A/I does not support symmetrical transient suppression.
What is the reverse leakage current specification for the TPSMC9.1HE3_A/I at 7.37 V and 150 °C?
At VWM = 7.37 V and TJ = 150 °C, the TPSMC9.1HE3_A/I exhibits a maximum reverse leakage current (ID) of 500 μA, as specified in the ELECTRICAL CHARACTERISTICS table on page 2 of the Vishay datasheet. This value is significantly higher than the 50 μA limit at 25 °C, reflecting thermally activated carrier generation - a key design consideration for high-temperature automotive applications using the TPSMC9.1HE3_A/I.
TPSMC9.1HE3_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):
- 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/I FAQ
1.How can I place an order for TPSMC9.1HE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC9.1HE3_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 TPSMC9.1HE3_A/I reliable?
The price and inventory of TPSMC9.1HE3_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 TPSMC9.1HE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMC9.1HE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC9.1HE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC9.1HE3_A/I?
TPSMC9.1HE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC9.1HE3_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 TPSMC9.1HE3_A/I?
For technical support, including TPSMC9.1HE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC9.1HE3_A/I requirements.
6.How does Aetrix verify that TPSMC9.1HE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMC9.1HE3_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 TPSMC9.1HE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMC9.1HE3_A/I?
All TPSMC9.1HE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC9.1HE3_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 TPSMC9.1HE3_A/I part is unused and in its original packaging.
Return procedure for TPSMC9.1HE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC9.1HE3_A/I Tags
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