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Vishay General Semiconductor - Diodes Division TPSMC7.5AHE3_A/I
- Part No.:
- TPSMC7.5AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC7.5AHE3_A/I.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,587
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Product details
Overview
TPSMC7.5AHE3_A/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 7.5 V nominal breakdown voltage (VBR), 6.4 V stand-off voltage (VWM), 1500 W peak pulse power (10/1000 µs), 11.3 V maximum clamping voltage at 133 A, and operates up to +185 °C junction temperature - deployed in automotive sensor protection and industrial power rail surge suppression.
For engineers reviewing the TPSMC7.5AHE3_A/I datasheet, TPSMC7.5AHE3_A/I pinout, TPSMC7.5AHE3_A/I application, or TPSMC7.5AHE3_A/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification (HE3 suffix), MSL Level 1 rating, 10 mA test current for VBR, and cathode-band-defined terminal orientation in SMC package.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping under repetitive surge stress. Its 185 °C maximum junction temperature and low incremental surge resistance support high-reliability operation in automotive engine control units and industrial motor drives where thermal cycling and ESD immunity are critical.
The device responds within picoseconds to transients and maintains tight VBR tolerance (±5% at 10 mA) across temperature via a 0.052 %/°C temperature coefficient. Clamping performance is validated per ANSI/IEEE C62.35 with 10/1000 µs waveform and derated above 25 °C per published curves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 7.13 / 7.50 / 7.88 V at 10 mA - defines precise voltage threshold for avalanche conduction onset |
| VWM | 6.40 V - maximum continuous reverse voltage before leakage exceeds 500 µA |
| VC @ IPPM | 11.3 V at 133 A - clamped voltage during 1500 W transient, limiting downstream IC stress |
| PPPM | 1500 W (10/1000 µs) - peak surge energy handling capacity on standard PCB copper pads |
| TJ max. | +185 °C - enables under-hood automotive use without derating in high-ambient environments |
| Polarity | Unidirectional - protects only against positive transients relative to cathode; requires correct orientation |
| MSL Level | Level 1 (260 °C peak reflow) - supports standard SMT assembly without moisture sensitivity concerns |
Pinout & Package
Package: SMC (DO-214AB), molded epoxy case with matte tin-plated leads, UL 94 V-0 rated, 0.320" × 0.246" footprint (8.13 mm × 6.22 mm), cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current sink path during clamping | Connected to protected line (e.g., 12 V rail); conducts surge current into ground when VBR exceeded |
| Cathode | Reference node / ground return | Connected to system ground; polarity marking band identifies this terminal; determines unidirectional conduction direction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including powertrain and ADAS sensor modules per stress test requirements |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/5a surges and IEC 61000-4-5 combination wave events on 12 V systems |
| Low clamping ratio (VC/VBR = 1.51) | Minimizes overvoltage exposure to downstream MOSFETs or microcontrollers during fast transients |
| Junction temp. capability: -65 to +185 °C | Eliminates need for thermal derating in under-dash or engine bay mounting locations |
| MSL Level 1, J-STD-020 compliant | Enables single-pass reflow without baking; compatible with high-volume automated SMT lines |
Applications
| Automotive Sensor Protection | Industrial Power Rail Clamp |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., oxygen, pressure) from load dump and inductive switching spikes in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp transients below IC absolute maximum ratings. Use Value: Prevents latch-up or permanent damage to 5 V/3.3 V interface ICs during 12 V system load dump (ISO 16750-2) with <11.3 V clamping. | Use Scenario: Safeguarding 24 V DC input rails of PLC I/O modules and motor drive controllers against lightning-induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary front-end surge suppressor mounted at board edge, shunting >1 kA transients to ground before reaching DC-DC converters. Use Value: Maintains system uptime by absorbing 1500 W pulses without degradation, verified over 1000+ surge cycles per JEDEC JESD22-A114. |
| Consumer Power Adapter Input | Telecom Line Interface |
Use Scenario: Secondary-side overvoltage protection in USB-C PD adapters and AC/DC SMPS where secondary-side transients threaten synchronous rectifiers and controllers. IC Role / Device Role / Timing Role: Fast-response clamp on +5 V/+9 V/+15 V output rails, triggered within <1 ns to limit overshoot during regulation loop instability. Use Value: Enables compliance with UL 62368-1 transient immunity requirements using single-device solution instead of RC snubber + Zener stack. | Use Scenario: Surge protection on Ethernet PHY power pins (e.g., MDI-X bias rails) and RS-485 termination networks in base station backhaul equipment. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between isolated DC supply and data line ground to suppress common-mode surges coupled via transformer parasitics. Use Value: Provides 6.4 V hold-off with <500 µA leakage at 85 °C, ensuring minimal impact on PHY bias stability while passing IEC 61000-4-5 Level 3 testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5A | Same VBR/VC specs but lower PPPM (600 W), SMB (DO-214AA) package, smaller footprint (0.205" × 0.130") | Not rated for AEC-Q101; limited to consumer/industrial use; insufficient for automotive load dump | Select when space-constrained and surge energy ≤600 W; verify thermal pad area meets 0.125" × 0.125" requirement |
| TPSMC7.5AHE3_A/H | Identical electrical specs and qualification; differs only in tape-and-reel packaging (7" vs. 13" reel, 850 vs. 3500 pcs) | No functional difference; same layout, same reliability, same automotive qualification | Choose based on production volume and SMT line feeder compatibility - no design change required |
Compared with SMBJ7.5A, TPSMC7.5AHE3_A/I delivers 2.5× higher surge power and automotive qualification in a larger SMC package; compared with TPSMC7.5AHE3_A/H, it shares identical performance and reliability - only packaging and quantity differ, making it a direct logistics alternative.
Availability
TPSMC7.5AHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor protection, industrial power rail clamp, and telecom line interface applications requiring stable component supply, AEC-Q101 traceability, and long-term lifecycle continuity.
Supply support for TPSMC7.5AHE3_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-grade performance.
The TPSMC series was developed specifically for robust transient suppression in harsh-environment applications - targeting automotive powertrain, industrial automation, and infrastructure equipment where 185 °C operation and AEC-Q101 validation are mandatory.
FAQ
What is the maximum clamping voltage of the TPSMC7.5AHE3_A/I under full-rated surge current?
The TPSMC7.5AHE3_A/I has a maximum clamping voltage (VC) of 11.3 V when subjected to its peak pulse current (IPPM) of 133 A, measured with a 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and ensures downstream components remain within safe voltage limits during transient events. The TPSMC7.5AHE3_A/I achieves this with low dynamic impedance and stable avalanche characteristics.
Is the TPSMC7.5AHE3_A/I qualified for automotive applications?
Yes, the TPSMC7.5AHE3_A/I is AEC-Q101 qualified, as confirmed by the HE3 suffix in its ordering code. It meets all stress tests defined in the AEC-Q101 standard, including high-temperature operating life, temperature cycling, and surge robustness. This qualification makes the TPSMC7.5AHE3_A/I suitable for use in automotive powertrain, body electronics, and ADAS sensor modules where reliability under thermal and electrical stress is critical.
What does the "_A/I" suffix mean in TPSMC7.5AHE3_A/I?
The "_A" denotes the revision code per Vishay's internal documentation, indicating the specific process and test lot version. The "/I" specifies the packaging format: 13-inch diameter plastic tape-and-reel containing 3500 units. This contrasts with "/H", which indicates 7-inch reels of 850 units. Both share identical electrical and reliability specifications - the suffix only reflects mechanical packaging and revision tracking for the TPSMC7.5AHE3_A/I.
Can the TPSMC7.5AHE3_A/I be used in bidirectional configurations?
No, the TPSMC7.5AHE3_A/I is unidirectional only, as explicitly stated in the Vishay datasheet. It conducts surge current from anode to cathode when reverse-biased beyond VBR. For bidirectional protection, two TPSMC7.5AHE3_A/I devices must be connected in series opposition, or a dedicated bidirectional TVS such as the SMBJ7.5CA should be selected. Using a single TPSMC7.5AHE3_A/I in reverse orientation will not provide clamping.
What is the standoff voltage (VWM) and why is it important for TPSMC7.5AHE3_A/I layout?
The TPSMC7.5AHE3_A/I has a standoff voltage (VWM) of 6.40 V, meaning it remains non-conductive up to this DC or RMS voltage level. This parameter is critical for PCB layout because the protected line must never exceed 6.40 V in normal operation - otherwise, excessive leakage current (>500 µA) will flow, causing power loss or false triggering. Layout must ensure no adjacent traces or coupling mechanisms raise the line voltage above VWM during steady-state conditions.
TPSMC7.5AHE3_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):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 133A
- 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)
TPSMC7.5AHE3_A/I FAQ
1.How can I place an order for TPSMC7.5AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC7.5AHE3_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 TPSMC7.5AHE3_A/I reliable?
The price and inventory of TPSMC7.5AHE3_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 TPSMC7.5AHE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMC7.5AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC7.5AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC7.5AHE3_A/I?
TPSMC7.5AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC7.5AHE3_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 TPSMC7.5AHE3_A/I?
For technical support, including TPSMC7.5AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC7.5AHE3_A/I requirements.
6.How does Aetrix verify that TPSMC7.5AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMC7.5AHE3_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 TPSMC7.5AHE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMC7.5AHE3_A/I?
All TPSMC7.5AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC7.5AHE3_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 TPSMC7.5AHE3_A/I part is unused and in its original packaging.
Return procedure for TPSMC7.5AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC7.5AHE3_A/I Tags
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