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Vishay General Semiconductor - Diodes Division TPSMC30HE3_A/I
- Part No.:
- TPSMC30HE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC30HE3_A/I.pdf
- Description:
- TVS DIODE 24.3VWM 43.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,410
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Product details
Overview
TPSMC30HE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge clamping in automotive and industrial power rails. It features a 30 V nominal breakdown voltage (VBR = 28.5–31.5 V at 1 mA), 25.6 V stand-off voltage (VWM), 41.4 V maximum clamping voltage (VC) at 36.2 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs and ICs against inductive switching transients in engine control units.
For engineers reviewing the TPSMC30HE3_A/I datasheet, TPSMC30HE3_A/I pinout, TPSMC30HE3_A/I application, or TPSMC30HE3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C junction temperature rating, unidirectional polarity, low incremental surge resistance, and compatibility with automated SMT assembly under J-STD-002 solderability standards.
Technical Context
The TPSMC30HE3_A/I employs passivated anisotropic rectifier technology optimized for stable clamping under high-temperature operation up to TJ = 185 °C. Its junction passivation ensures consistent VBR drift (αT = 0.088 %/°C) and low leakage (<1 μA at VWM, <10 μA at TJ = 150 °C).
It delivers fast response time (<1 ns) and excellent clamping ratio (VC/VBR ≈ 1.38), enabling robust protection of 24 V automotive systems against ISO 7637-2 and IEC 61000-4-5 surge events. The device is rated for non-repetitive 200 A forward surge current (IFSM) and meets MSL Level 1 per J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 28.5 / 30.0 / 31.5 V at 1 mA - defines precise voltage threshold where avalanche conduction begins under transient stress |
| VWM | 25.6 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA; sets safe margin below system rail |
| VC @ IPPM | 41.4 V at 36.2 A - clamped voltage during 10/1000 μs surge; determines protected circuit's maximum overvoltage exposure |
| PPPM | 1500 W - peak pulse power handling capacity; enables suppression of high-energy transients without failure |
| TJ max. | +185 °C - supports under-hood automotive placement and long-term reliability in thermally aggressive environments |
| Polarity | Unidirectional - protects only against positive-going transients on cathode-connected lines; requires correct orientation in PCB layout |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 8.13 mm × 6.22 mm footprint and 2.62 mm height; compatible with standard reflow profiles |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1, 260 °C peak reflow profile compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VAK exceeds VBR; polarity marking critical for correct installation |
| Anode | Reference/ground return | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage event |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for ECUs and ADAS modules |
| Junction passivation | Stabilizes VBR drift across temperature and lifetime; enables predictable clamping performance in harsh thermal environments |
| 1500 W peak pulse power | Withstands high-energy transients from load dump or inductive kickback without degradation - suitable for 24 V commercial vehicle systems |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage stress on downstream components; reduces need for additional series impedance or derating margins |
| MSL Level 1 compliance | Enables unlimited floor life and single-reflow processing without moisture sensitivity concerns - simplifies manufacturing logistics |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protecting microcontroller GPIO and CAN transceiver power rails from load dump and alternator ripple in 24 V vehicle electrical systems. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between 24 V supply and ground, clamping surges within 1 ns to limit voltage seen by downstream regulators and logic. Use Value: Enables reliable operation at TJ = 185 °C and eliminates field failures due to ISO 16750-2 pulse 5a/b transients. | Use Scenario: Safeguarding 24 V DC digital input circuits in programmable logic controllers exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Standoff protection element mounted directly at connector entry point, shunting induced transients before they reach optocoupler input stage. Use Value: Maintains signal integrity with <1 μA leakage at 25.6 V, preventing false triggering while surviving repeated 1500 W surges. |
| Telecom Power Supply Front-End | Consumer Appliance Motor Drive Board |
Use Scenario: Clamping lightning-induced surges on -48 V telecom rectifier outputs feeding base station backplane power distribution. IC Role / Device Role / Timing Role: High-power unidirectional TVS connected across output capacitor bank, absorbing IEC 61000-4-5 combination wave surges. Use Value: Delivers 41.4 V clamping at 36.2 A with low incremental resistance, limiting overvoltage to safe levels for downstream DC/DC converters. | Use Scenario: Protecting gate drivers and MCU power rails in washing machine inverter boards subjected to brush motor commutation spikes. IC Role / Device Role / Timing Role: Transient suppressor placed across 12 V auxiliary supply rail, conducting surge energy to chassis ground during motor turn-off events. Use Value: Withstands 200 A non-repetitive forward surge (IFSM) and maintains stable VBR after thermal cycling - extends product lifetime in humid environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A | Same VBR range (28.5–31.5 V), but lower PPPM = 600 W and smaller SMB (DO-214AA) package; 100 A IPPM vs. 36.2 A | Lower power handling limits use to sub-1 kV surge environments; unsuitable for automotive load dump | Select when space-constrained layouts require smaller footprint and surge energy is limited to ≤600 W |
| TPSMC30AHM3_A/I | Identical electrical specs and package; differs only in halogen-free molding compound and whisker-tested terminations | No functional difference; HM3 suffix adds halogen-free compliance and enhanced plating reliability for extended-life industrial deployments | Choose HM3 version for RoHS + halogen-free requirements or higher whisker resistance in high-vibration applications |
Compared with SMBJ30A and TPSMC30AHM3_A/I, the TPSMC30HE3_A/I provides the highest surge power margin (1500 W) in the SMC form factor and is pre-qualified for automotive use - making it optimal for safety-critical 24 V systems where both energy handling and qualification status are mandatory.
Availability
TPSMC30HE3_A/I is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC input modules, and telecom power supply front-ends requiring stable component supply with full AEC-Q101 traceability and long-lifecycle support.
Supply support for TPSMC30HE3_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 power MOSFETs for high-reliability applications.
The TPSMC series is part of Vishay's PAR® (Protected Avalanche Rectifier) transient suppressor family, engineered specifically for automotive-grade surge immunity and high-temperature stability in demanding power-line protection roles.
FAQ
What is the maximum clamping voltage of the TPSMC30HE3_A/I under a 10/1000 μs surge?
The TPSMC30HE3_A/I has a maximum clamping voltage (VC) of 41.4 V when subjected to its rated peak pulse current of 36.2 A with a 10/1000 μs waveform. This value is measured per Fig. 1 in the Vishay datasheet 88407 and represents the upper bound of voltage seen by protected circuitry during worst-case transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the TPSMC30HE3_A/I qualified for automotive applications?
Yes, the TPSMC30HE3_A/I is AEC-Q101 qualified, as confirmed in the Vishay datasheet 88407 under "FEATURES" and "ORDERING INFORMATION". The HE3 suffix denotes RoHS-compliant and AEC-Q101 qualified construction, making TPSMC30HE3_A/I suitable for use in engine control units, body electronics, and ADAS subsystems where automotive-grade reliability is mandated.
What does the "HE3" suffix mean in TPSMC30HE3_A/I?
The "HE3" suffix in TPSMC30HE3_A/I indicates RoHS-compliant construction with matte tin-plated leads that meet J-STD-002 solderability and JESD 201 Class 2 whisker resistance requirements. It also confirms AEC-Q101 qualification. The "A/I" denotes packaging in 13-inch tape-and-reel format with 3500 units per reel - essential for high-volume SMT production.
Can the TPSMC30HE3_A/I be used in bidirectional protection circuits?
No, the TPSMC30HE3_A/I is unidirectional only, as explicitly stated in the Vishay datasheet. It protects against positive transients on the cathode side relative to anode. For bidirectional protection (e.g., data lines or AC inputs), a dedicated bidirectional TVS like SMAJ30CA or a back-to-back configuration would be required - TPSMC30HE3_A/I must not be substituted without verifying polarity alignment.
What is the thermal derating behavior of the TPSMC30HE3_A/I above 25 °C ambient?
The TPSMC30HE3_A/I follows the derating curve in Figure 2 of datasheet 88407: peak pulse power decreases linearly from 1500 W at 25 °C to ~750 W at 125 °C ambient. This reflects junction temperature rise limitations; design margin must account for PCB copper area (0.31″ × 0.31″ pads recommended) and airflow to maintain TJ ≤ 185 °C during repetitive surge events.
TPSMC30HE3_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):
- 24.3V
- Voltage - Breakdown (Min):
- 27V
- Voltage - Clamping (Max) @ Ipp:
- 43.5V
- Current - Peak Pulse (10/1000µs):
- 34.5A
- 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 (SMCJ)
TPSMC30HE3_A/I FAQ
1.How can I place an order for TPSMC30HE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC30HE3_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 TPSMC30HE3_A/I reliable?
The price and inventory of TPSMC30HE3_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 TPSMC30HE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMC30HE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC30HE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC30HE3_A/I?
TPSMC30HE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC30HE3_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 TPSMC30HE3_A/I?
For technical support, including TPSMC30HE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC30HE3_A/I requirements.
6.How does Aetrix verify that TPSMC30HE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMC30HE3_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 TPSMC30HE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMC30HE3_A/I?
All TPSMC30HE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC30HE3_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 TPSMC30HE3_A/I part is unused and in its original packaging.
Return procedure for TPSMC30HE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC30HE3_A/I Tags
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