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Vishay General Semiconductor - Diodes Division TPSMA7.5AHM3_B/I
- Part No.:
- TPSMA7.5AHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA7.5AHM3_B/I.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,027
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Product details
Overview
TPSMA7.5AHM3_B/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode in SMA (DO-214AC) 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), 400 W peak pulse power (10/1000 μs), 35.4 V maximum clamping voltage at 11.3 A peak pulse current, and operates up to +185 °C junction temperature.
For engineers reviewing the TPSMA7.5AHM3_B/I datasheet, TPSMA7.5AHM3_B/I pinout, TPSMA7.5AHM3_B/I application, or TPSMA7.5AHM3_B/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, halogen-free RoHS compliance, MSL Level 1 rating, and suitability for automotive-grade surge protection in constrained PCB layouts.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for high-temperature stability and low incremental surge resistance. Its 10/1000 μs waveform response delivers consistent clamping performance under repetitive surge conditions with 0.01 % duty cycle.
The device is rated for 40 A non-repetitive forward surge current (8.3 ms half-sine), exhibits 0.052 %/°C temperature coefficient of VBR, and maintains stable operation across -65 °C to +185 °C junction temperature range - meeting automotive reliability requirements per AEC-Q101 when ordered with HM3 suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 7.13 / 7.50 / 7.88 V - ensures reliable turn-on above system operating voltage while avoiding false triggering |
| VWM | 6.40 V - maximum continuous reverse voltage before leakage exceeds 150 μA at 25 °C |
| VC @ IPPM | 35.4 V - clamps 11.3 A transient to safe level for downstream ICs and MOSFETs |
| PPPM | 400 W - handles high-energy surges from inductive switching or lightning-induced transients |
| TJ max. | +185 °C - supports under-hood automotive and industrial environments without derating |
| Polarity | Unidirectional - protects against positive-going transients only; cathode band denotes polarity |
| MSL Level | Level 1 (J-STD-020) - allows standard reflow without moisture sensitivity concerns |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, matte tin-plated leads, UL 94 V-0 molding compound. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction or clamping | Connected to protected line (e.g., VIN, signal trace); forms low-impedance path to ground during overvoltage |
| Cathode | Current exit terminal during clamping; reference node | Connected to system ground or return path; defines clamping threshold relative to ground potential |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| Halogen-free & RoHS-compliant | Meets environmental compliance standards for global OEM supply chains without compromising thermal or electrical performance |
| 185 °C junction capability | Enables placement near heat sources (e.g., power converters, motor drivers) without thermal derating |
| Low clamping ratio (VC/VBR ≈ 4.7) | Minimizes overvoltage stress on protected devices during fast-rising transients |
| Fast response time (< 1 ns) | Clamps ESD and EFT events before sensitive circuitry sustains damage |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between power rail and chassis ground. Use Value: Withstands 400 W surges and operates reliably at +185 °C, enabling direct integration into under-hood modules. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Signal-line TVS shunt device connected between sensor output and ground. Use Value: Low VC (35.4 V) prevents latch-up in op-amps and ADC front-ends while maintaining signal integrity. |
| Consumer USB Port Surge Suppression | Telecom DC Power Input Protection |
Use Scenario: Safeguarding USB VBUS lines in portable docking stations against hot-plug and ESD. IC Role / Device Role / Timing Role: Standoff-rated TVS on 5 V power rail with fast clamping response. Use Value: VWM = 6.4 V ensures no conduction during normal operation; MSL Level 1 supports automated assembly. | Use Scenario: Protecting 48 V telecom power inputs from lightning-induced surges on outdoor equipment. IC Role / Device Role / Timing Role: Primary surge suppression stage before DC/DC converter input. Use Value: 400 W PPPM and robust IPPM (11.3 A) provide margin against multi-kV induced transients. |
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 600 W PPPM | Marginally tighter clamping threshold; less headroom for VBR drift over temperature | Select when higher peak power handling is required and 7.0 V breakdown suffices for system margin |
| TPSMA7.5AHE3_B/I | Same electrical specs, identical package, but RoHS-compliant without halogen-free certification | Not qualified to AEC-Q101; unsuitable for automotive production unless exempted | Choose for cost-sensitive industrial or consumer designs where halogen-free requirement is not mandated |
Compared with TPSMA7.5AHM3_B/I, SMBJ7.0A offers greater surge capacity but reduced thermal stability margin, while TPSMA7.5AHE3_B/I matches electrical performance but lacks halogen-free and AEC-Q101 validation - making TPSMA7.5AHM3_B/I the preferred choice for automotive and regulated industrial deployments.
Availability
TPSMA7.5AHM3_B/I is available at Aetrix Electronics and suitable for automotive power systems, industrial sensor interfaces, consumer USB protection, and telecom DC input circuits requiring stable component supply with full AEC-Q101 traceability and halogen-free compliance.
Supply support for TPSMA7.5AHM3_B/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 reliability, thermal performance, and automotive qualification.
The TPSMA7.5AHM3_B/I belongs to Vishay's PAR® family of surface-mount TVS diodes, engineered specifically for high-temperature, high-reliability transient suppression in automotive and industrial power and signal lines.
FAQ
What is the clamping voltage of the TPSMA7.5AHM3_B/I at its rated peak pulse current?
The TPSMA7.5AHM3_B/I has a maximum clamping voltage (VC) of 35.4 V at 11.3 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is measured per JEDEC standards and ensures downstream components remain within safe operating limits during surge events. The TPSMA7.5AHM3_B/I achieves this with low incremental surge resistance and stable junction characteristics up to +185 °C.
Is the TPSMA7.5AHM3_B/I qualified for automotive applications?
Yes, the TPSMA7.5AHM3_B/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HM3", which denotes halogen-free, RoHS-compliant, and AEC-Q101 validated construction. This qualification covers stress testing for temperature cycling, humidity, mechanical shock, and surge endurance - making the TPSMA7.5AHM3_B/I suitable for engine control units, body electronics, and ADAS sensor modules.
What does the "B/I" suffix mean in TPSMA7.5AHM3_B/I?
The "B/I" suffix in TPSMA7.5AHM3_B/I indicates revision level "B" and packaging format "I": 13-inch diameter plastic tape and reel, with 7500 units per reel. This packaging meets J-STD-002 and JESD 22-B102 solderability standards and supports high-volume SMT assembly. The TPSMA7.5AHM3_B/I is fully compatible with standard pick-and-place equipment calibrated for DO-214AC footprints.
How does the TPSMA7.5AHM3_B/I compare to the HE3 version in terms of compliance?
The TPSMA7.5AHM3_B/I is halogen-free, RoHS-compliant, and AEC-Q101 qualified, whereas the HE3 variant is RoHS-compliant and AEC-Q101 qualified but not halogen-free. Both share identical electrical specifications and SMA (DO-214AC) packaging. The TPSMA7.5AHM3_B/I satisfies stricter environmental mandates such as EU Directive 2012/19/EU Annex VII and certain OEM halogen bans, while the HE3 version remains acceptable for non-halogen-restricted industrial use.
What is the maximum reverse leakage current of the TPSMA7.5AHM3_B/I at its stand-off voltage?
At 25 °C and VWM = 6.40 V, the TPSMA7.5AHM3_B/I exhibits a maximum reverse leakage current (IR) of 150 μA. At elevated temperature (TJ = 150 °C), leakage increases to 1000 μA - a design-stable value verified across the full operating range. This controlled leakage ensures minimal power loss in standby mode while preserving fast transient response in the TPSMA7.5AHM3_B/I.
TPSMA7.5AHM3_B/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
TPSMA7.5AHM3_B/I FAQ
1.How can I place an order for TPSMA7.5AHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA7.5AHM3_B/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 TPSMA7.5AHM3_B/I reliable?
The price and inventory of TPSMA7.5AHM3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA7.5AHM3_B/I is usually 5 days.
3.What payment methods are accepted for TPSMA7.5AHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA7.5AHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA7.5AHM3_B/I?
TPSMA7.5AHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA7.5AHM3_B/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 TPSMA7.5AHM3_B/I?
For technical support, including TPSMA7.5AHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA7.5AHM3_B/I requirements.
6.How does Aetrix verify that TPSMA7.5AHM3_B/I is sourced from the original manufacturer or authorized distributors?
All TPSMA7.5AHM3_B/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 TPSMA7.5AHM3_B/I meets industry standards.
7.What is the process for return or replacement of TPSMA7.5AHM3_B/I?
All TPSMA7.5AHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA7.5AHM3_B/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 TPSMA7.5AHM3_B/I part is unused and in its original packaging.
Return procedure for TPSMA7.5AHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA7.5AHM3_B/I Tags
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