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Vishay General Semiconductor - Diodes Division TPSMA7.5AHE3_A/H
- Part No.:
- TPSMA7.5AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA7.5AHE3_A/H.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,302
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Product details
Overview
TPSMA7.5AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode designed for clamping inductive switching surges and lightning-induced transients on power and signal lines. It features a 7.5 V nominal breakdown voltage (VBR), 6.4 V stand-off voltage (VWM), 400 W peak pulse power (10/1000 μs), 185 °C maximum junction temperature, and SMA (DO-214AC) package - used in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the TPSMA7.5AHE3_A/H datasheet, TPSMA7.5AHE3_A/H pinout, TPSMA7.5AHE3_A/H application, or TPSMA7.5AHE3_A/H equivalent, key selection criteria include clamping voltage at rated surge current (35.4 V), low leakage (<150 μA at VWM), AEC-Q101 qualification, and thermal stability up to +185 °C under high-reliability operating conditions.
Technical Context
This TVS diode operates as a unidirectional clamping device with an anisotropic rectifier structure optimized for fast response and low incremental surge resistance. Its junction passivation enables stable performance at TJ = 185 °C, supporting automotive under-hood and industrial control applications where thermal derating must be minimized.
The device meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and is qualified to AEC-Q101 - confirming suitability for automotive electronics requiring long-term reliability under repetitive surge stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 7.13 / 7.50 / 7.88 V - ensures reliable triggering above system operating voltage while maintaining margin against false clamping |
| VWM | 6.40 V - maximum continuous reverse voltage before significant leakage; compatible with 5 V logic and 6 V supply rails |
| VC @ IPPM | 35.4 V - clamping voltage during 400 W surge (10/1000 μs); limits downstream IC stress during transient events |
| IR @ VWM | 150 μA at 25 °C - low leakage preserves signal integrity and minimizes standby power loss in battery-powered systems |
| PPPM | 400 W - peak pulse power handling capability for transient suppression per standard 10/1000 μs waveform |
| TJ max. | +185 °C - enables operation in high-temperature environments such as engine control units and motor drives |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with cathode band marking and 0.2" × 0.2" copper pad requirement |
Pinout & Package
TPSMA7.5AHE3_A/H is housed in an SMA (DO-214AC) plastic package with two terminals: cathode (marked by color band) and anode. The package conforms to JEDEC DO-214AC mechanical dimensions and supports automated placement and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VAK exceeds VBR |
| Anode | Reference/ground return path | Typically tied to system ground or low-impedance return plane to complete clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance per stress test plan |
| Junction passivated anisotropic rectifier | Reduces parameter drift over time and temperature; improves consistency of VBR and leakage across life cycle |
| MSL Level 1 rating | Enables single-pass reflow without moisture-related popcorning; no bake required prior to assembly |
| 185 °C junction capability | Supports operation in under-hood, motor control, and industrial drive environments without thermal derating penalties |
| Low clamping ratio (VC/VBR ≈ 4.7) | Delivers tight voltage limiting relative to breakdown point - critical for protecting 3.3 V and 5 V logic interfaces |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between signal line and chassis ground to clamp transients before reaching sensitive input stages. Use Value: With VC = 35.4 V and IPPM = 11.3 A, it limits voltage seen by downstream 5 V-rated transceivers during ISO 7637-2 Pulse 1/2a events. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected across input terminals to absorb inductive kickback from 24 V DC solenoids and contactors. Use Value: 400 W peak power rating and 6.4 V VWM allow compatibility with 24 V industrial control signals while suppressing >1 kV transients. |
| Consumer Power Adapter Input | Telecom Line Interface Protection |
|
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters and USB PD chargers subjected to lightning-induced surges on DC output lines. IC Role / Device Role / Timing Role: Fast-response unidirectional clamp placed between +VOUT and GND to limit transient overshoot during fault conditions. Use Value: 35.4 V clamping voltage prevents damage to downstream 12 V or 20 V rated DC-DC converters and USB-C controller ICs. |
Use Scenario: Surge protection on Ethernet PHY side or analog telephone line interfaces in VoIP gateways and base stations. IC Role / Device Role / Timing Role: Primary-level TVS on tip/ring lines to shunt induced lightning energy before entering isolation transformers or line drivers. Use Value: Low 150 μA leakage at 6.4 V VWM avoids signal attenuation on high-impedance telecom lines while providing robust 400 W surge immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A | Higher VWM (6.0 V), lower VBR (7.0 V min), same SMA package but SMBJ outline (DO-214AA); 600 W PPPM | Less margin below 7.5 V rail; better suited for 5 V systems with tighter clamping tolerance | Select when higher peak power (600 W) is needed and 6.0 V VWM aligns with system voltage |
| SMCJ7.0A | Larger SMC (DO-214AB) package; 1500 W PPPM; VWM = 6.0 V, VBR = 7.0 V min | Requires larger PCB footprint; intended for higher-energy surge environments (e.g., AC mains input) | Choose for applications demanding >1 kW surge handling where board space permits larger SMC package |
Compared with SMBJ7.0A and SMCJ7.0A, the TPSMA7.5AHE3_A/H offers tighter VBR tolerance (±4.7%), AEC-Q101 qualification out-of-box, and optimized thermal performance at 185 °C - making it preferred for space-constrained automotive and industrial designs requiring verified reliability.
Availability
TPSMA7.5AHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line interface protection requiring stable component supply and AEC-Q101 compliance.
Supply support for TPSMA7.5AHE3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and high-temperature performance.
The TPSMA7.5AHE3_A/H belongs to Vishay's PAR® family of transient voltage suppressors, engineered specifically for robust electrostatic and surge protection in harsh automotive and industrial environments.
FAQ
What is the clamping voltage of the TPSMA7.5AHE3_A/H at its rated peak pulse current?
The TPSMA7.5AHE3_A/H has a maximum clamping voltage (VC) of 35.4 V when subjected to its rated peak pulse current (IPPM) of 11.3 A under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88405 and defines the upper voltage limit imposed on protected circuitry during surge events.
Is the TPSMA7.5AHE3_A/H qualified for automotive applications?
Yes, the TPSMA7.5AHE3_A/H carries the HE3 suffix, indicating RoHS-compliance and full AEC-Q101 qualification per Vishay's documentation. It undergoes stress testing for high-temperature operation (TJ = 185 °C), temperature cycling, and surge endurance - meeting requirements for use in automotive ECUs, body control modules, and sensor interfaces.
What does the "HE3" suffix mean in TPSMA7.5AHE3_A/H?
The "HE3" suffix in TPSMA7.5AHE3_A/H denotes a RoHS-compliant, AEC-Q101-qualified version with matte tin-plated leads that meet J-STD-002 and JESD 22-B102 solderability standards. The "_A/H" indicates revision A and packaging in 7" tape-and-reel (H code) with 1800 units per reel.
How does the TPSMA7.5AHE3_A/H differ from the TPSMA7.5AHM3 variant?
The TPSMA7.5AHE3_A/H is halogen-free optional, while TPSMA7.5AHM3_X is explicitly halogen-free, RoHS-compliant, and AEC-Q101-qualified. Both share identical electrical specs and package, but HM3 meets stricter material declarations (e.g., IEC 61249-2-21) for green manufacturing programs where brominated flame retardants must be avoided.
What is the maximum reverse leakage current of the TPSMA7.5AHE3_A/H at its stand-off voltage?
At VWM = 6.40 V and TA = 25 °C, the TPSMA7.5AHE3_A/H exhibits a maximum reverse leakage current (IR) of 150 μA. At elevated temperature (TJ = 150 °C), leakage rises to 500 μA - a value confirmed in Table 1 of Vishay document 88405 and critical for low-power sensor interface design.
TPSMA7.5AHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- 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):
- 35.4A
- Power - Peak Pulse:
- 400W
- 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-214AC (SMA)
TPSMA7.5AHE3_A/H FAQ
1.How can I place an order for TPSMA7.5AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA7.5AHE3_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 TPSMA7.5AHE3_A/H reliable?
The price and inventory of TPSMA7.5AHE3_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 TPSMA7.5AHE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMA7.5AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA7.5AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA7.5AHE3_A/H?
TPSMA7.5AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA7.5AHE3_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 TPSMA7.5AHE3_A/H?
For technical support, including TPSMA7.5AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA7.5AHE3_A/H requirements.
6.How does Aetrix verify that TPSMA7.5AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMA7.5AHE3_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 TPSMA7.5AHE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMA7.5AHE3_A/H?
All TPSMA7.5AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA7.5AHE3_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 TPSMA7.5AHE3_A/H part is unused and in its original packaging.
Return procedure for TPSMA7.5AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA7.5AHE3_A/H Tags
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