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Vishay General Semiconductor - Diodes Division TPSMA30HE3_A/H
- Part No.:
- TPSMA30HE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA30HE3_A/H.pdf
- Description:
- TVS DIODE 24.3VWM 43.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,254
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Product details
Overview
TPSMA30HE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) in SMA (DO-214AC) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning. It features a 30 V nominal breakdown voltage (VBR = 28.5–31.5 V), 400 W peak pulse power (10/1000 µs), 41.4 V maximum clamping voltage at 9.7 A IPPM, and operates up to +185 °C junction temperature - ideal for automotive power rail and sensor line protection.
For engineers reviewing the TPSMA30HE3_A/H datasheet, TPSMA30HE3_A/H pinout, TPSMA30HE3_A/H application, or TPSMA30HE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, MSL Level 1 rating, 1.0 W steady-state power dissipation, and compatibility with high-reliability industrial and automotive PCB layouts requiring robust surge immunity.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for junction stability under thermal stress. Its unidirectional architecture provides low incremental surge resistance and fast response time to clamp transients before downstream ICs or MOSFETs are damaged.
Rated for TJ = –65 °C to +185 °C, it supports high-temperature environments without derating loss in clamping performance. The device meets JESD201 Class 2 whisker resistance and is RoHS-compliant with matte tin-plated leads solderable per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 28.5 V / 30.0 V / 31.5 V - ensures reliable triggering above 25.6 V stand-off voltage while maintaining margin against false triggering. |
| VC @ IPPM | 41.4 V - clamps 9.7 A surge current to safe level for 3.3 V or 5 V logic interfaces and gate drivers. |
| PPPM | 400 W (10/1000 µs) - handles automotive ISO 7637-2 Pulse 1 & 2a surges and industrial IEC 61000-4-5 Level 3 events. |
| IFSM | 40 A (8.3 ms half-sine) - withstands repetitive motor commutation spikes without degradation. |
| TJ max. | +185 °C - enables placement near hot components (e.g., power MOSFETs, DC-DC converters) without thermal derating. |
| Package | SMA (DO-214AC) - industry-standard footprint compatible with automated SMT assembly and IPC-7351B land patterns. |
Pinout & Package
SMA (DO-214AC) surface-mount package with cathode band marking; terminals are matte tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode of internal PN junction | Connected to protected line; reverse-biased during normal operation, conducts only during overvoltage events. |
| Anode | Cathode of internal PN junction | Typically tied to ground or lower-potential rail; completes clamping path during transient suppression. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards. |
| MSL Level 1 (260 °C peak) | Enables single-reflow assembly without moisture sensitivity concerns or baking requirements. |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes voltage overshoot during surge, reducing stress on downstream 3.3 V or 5 V ICs. |
| 0.088 %/°C VBR tempco | Ensures predictable breakdown shift across –40 °C to +125 °C ambient, critical for engine bay applications. |
Applications
| Automotive Power Rail 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 placed between power input and ground to clamp positive-going surges. Use Value: Withstands 400 W pulses and operates up to +185 °C, enabling direct placement near power entry points without thermal derating. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS on signal lines to preserve signal integrity while suppressing ±8 kV contact ESD per IEC 61000-4-2. Use Value: 41.4 V clamping voltage prevents latch-up in 24 V sensor front-ends while maintaining sub-1 nA leakage at 25.6 V stand-off. |
| Telecom Line Surge Suppression | Consumer Power Adapter Input Protection |
Use Scenario: Safeguarding PoE-powered Ethernet ports against lightning-induced surges on data pairs. IC Role / Device Role / Timing Role: Bidirectional protection not applicable; this unidirectional part used on DC bias rails feeding PHY ICs. Use Value: 9.7 A peak surge current handling and 1.0 W steady-state dissipation support continuous operation in sealed telecom enclosures. | Use Scenario: Adding secondary-level surge protection after primary MOVs in AC-DC adapters for USB-C PD chargers. IC Role / Device Role / Timing Role: Final-stage TVS on 5 V/9 V/15 V output rails to prevent overvoltage damage to connected devices. Use Value: Fast response time (<1 ns) and low clamping voltage ensure compliance with USB PD 3.1 fault tolerance requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A | Same SMA package, 30 V VBR, but rated for 400 W with 1.0 ms pulse (not 10/1000 µs); no AEC-Q101 qualification. | Not suitable for automotive production; limited to commercial/industrial use where qualification is not mandated. | Select TPSMA30HE3_A/H when AEC-Q101 compliance and 10/1000 µs waveform validation are required. |
| SMCJ30A | Larger SMC (DO-214AB) package, same 30 V VBR, higher 1500 W PPPM; 1.5 W PD; not AEC-Q101 qualified. | Used where higher surge energy must be absorbed, but board space and qualification are secondary concerns. | Choose TPSMA30HE3_A/H for space-constrained automotive modules needing validated reliability at minimal footprint. |
Compared with SMAJ30A and SMCJ30A, TPSMA30HE3_A/H delivers AEC-Q101 qualification, MSL Level 1 reflow compatibility, and precise 10/1000 µs waveform validation - making it the only option among the three qualified for automotive Tier-1 production with zero layout change from standard SMA footprints.
Availability
TPSMA30HE3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom power-over-Ethernet systems, and consumer power adapter designs requiring stable component supply and long-term lifecycle support.
Supply support for TPSMA30HE3_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, rectifiers, TVS devices, and optoelectronics with emphasis on high-reliability and automotive-grade solutions.
The TPSMA30HE3_A/H belongs to Vishay's PAR® family of transient voltage suppressors, engineered specifically for high-temperature stability and AEC-Q101-compliant surge protection in harsh automotive and industrial environments.
FAQ
What is the exact breakdown voltage range for TPSMA30HE3_A/H?
The TPSMA30HE3_A/H has a guaranteed breakdown voltage (VBR) range of 28.5 V to 31.5 V at 1.0 mA test current, with a nominal value of 30.0 V. This specification is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet Document Number 88405, Revision 23-Jan-2024. The TPSMA30HE3_A/H maintains this tolerance across its full operating temperature range.
Is TPSMA30HE3_A/H qualified for automotive applications?
Yes, TPSMA30HE3_A/H is AEC-Q101 qualified and carries the HE3 suffix indicating RoHS compliance and automotive qualification. It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and ESD per JEDEC standards. The TPSMA30HE3_A/H is explicitly listed in Vishay's ordering information as an automotive-grade variant.
What is the maximum clamping voltage of TPSMA30HE3_A/H and at what current?
The TPSMA30HE3_A/H has a maximum clamping voltage (VC) of 41.4 V at a peak pulse current (IPPM) of 9.7 A, tested with a 10/1000 µs waveform. This value is specified in the Electrical Characteristics table of the official Vishay datasheet and reflects worst-case clamping performance under standardized surge conditions.
Does TPSMA30HE3_A/H have a bidirectional configuration?
No, TPSMA30HE3_A/H is unidirectional only. The datasheet explicitly states "Available in uni-directional polarity only" and shows cathode band marking for polarity identification. Bidirectional variants are not offered in the TPSMAxxA series; engineers requiring bidirectional protection must select alternate families such as SMBJ or SMCJ with 'CA' suffix.
What is the thermal rating and package type of TPSMA30HE3_A/H?
The TPSMA30HE3_A/H uses the SMA (DO-214AC) package and is rated for a maximum junction temperature of +185 °C. Its thermal design supports operation in high-ambient environments without derating, and it meets MSL Level 1 per J-STD-020 with a 260 °C reflow peak. The TPSMA30HE3_A/H package dimensions and pad layout are fully documented in Vishay's Package Outline Dimensions drawing.
TPSMA30HE3_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):
- 24.3V
- Voltage - Breakdown (Min):
- 27V
- Voltage - Clamping (Max) @ Ipp:
- 43.5V
- Current - Peak Pulse (10/1000µs):
- 9.2A
- 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)
TPSMA30HE3_A/H FAQ
1.How can I place an order for TPSMA30HE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA30HE3_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 TPSMA30HE3_A/H reliable?
The price and inventory of TPSMA30HE3_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 TPSMA30HE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMA30HE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA30HE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA30HE3_A/H?
TPSMA30HE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA30HE3_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 TPSMA30HE3_A/H?
For technical support, including TPSMA30HE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA30HE3_A/H requirements.
6.How does Aetrix verify that TPSMA30HE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMA30HE3_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 TPSMA30HE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMA30HE3_A/H?
All TPSMA30HE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA30HE3_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 TPSMA30HE3_A/H part is unused and in its original packaging.
Return procedure for TPSMA30HE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA30HE3_A/H Tags
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