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Vishay General Semiconductor - Diodes Division TPSMA22HE3/5AT
- Part No.:
- TPSMA22HE3/5AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA22HE3/5AT.pdf
- Description:
- TVS DIODE 17.8VWM 31.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,146
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Product details
Overview
TPSMA22HE3/5AT from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features a 22 V breakdown voltage (VBR = 20.9–23.1 V at 1 mA), 30.6 V maximum clamping voltage (VC) at 13.1 A peak pulse current, 400 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - ideal for automotive power rail protection.
For engineers reviewing the TPSMA22HE3/5AT datasheet, TPSMA22HE3/5AT pinout, TPSMA22HE3/5AT application, or TPSMA22HE3/5AT equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, and compatibility with high-reliability PCB layouts requiring robust ESD/surge immunity per IEC 61000-4-2/4-5.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping performance across -65 °C to +185 °C operating range. Its low incremental surge resistance and fast response time ensure effective suppression of inductive switching spikes and lightning-induced surges on 12 V/24 V automotive systems.
The device is rated for 40 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine) and exhibits 0.084 %/°C temperature coefficient of VBR, enabling predictable voltage threshold behavior under thermal stress in engine bay or power module environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 20.9 / 22.0 / 23.1 V at 1 mA - defines precise clamping onset threshold for 24 V nominal systems |
| VC @ IPPM | 30.6 V at 13.1 A - limits downstream voltage stress during 400 W transient events |
| PPPM | 400 W (10/1000 µs waveform) - supports industrial-grade surge immunity per IEC 61000-4-5 Level 4 |
| VWM | 18.8 V - ensures reliable blocking of normal 24 V rail operation without leakage |
| IR @ VWM | 1.0 µA max - minimizes standby power loss in always-on automotive modules |
| TJ max. | +185 °C - enables placement near heat sources (e.g., power converters, motor drivers) |
| Package | SMA (DO-214AC) - industry-standard SMD footprint with 0.2" × 0.2" copper pad requirement for thermal derating |
Pinout & Package
SMA (DO-214AC) surface-mount package with molded epoxy body, matte tin-plated leads, and cathode band marking. Compliant with UL 94 V-0 flammability rating and J-STD-002/JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR |
| Anode | Reference node | Typically tied to system ground or low-impedance return path for clamping loop integrity |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and chassis applications per stress test requirements |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning |
| Junction temperature capability | Rated for continuous operation up to +185 °C - eliminates derating concerns in under-hood designs |
| Low clamping ratio (VC/VBR) | 1.39 - delivers tight overvoltage control relative to breakdown threshold |
| Passivated anisotropic rectifier | Ensures stable leakage and clamping performance across lifetime and temperature cycling |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs of ECUs, body controllers, and ADAS domain controllers against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and input filter capacitor to clamp transients before LDOs or DC/DC converters. Use Value: Withstands 400 W surges while limiting voltage to ≤30.6 V - prevents damage to 36 V-rated input stages and meets OEM surge immunity specs. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation PLCs from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across differential signal pair (e.g., RS-485, CAN FD stubs) to suppress ±8 kV contact ESD. Use Value: 1.0 µA leakage at 18.8 V preserves signal integrity in µA-level sensor bias networks without loading error. |
| Telecom Power Interface Protection | Consumer Device USB/Power Adapter Input |
Use Scenario: Safeguarding PoE-powered equipment (e.g., IP cameras, access points) against induced surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Primary TVS on midspan injector output side, coordinated with upstream GDT or MOV for staged protection. Use Value: 13.1 A IPPM capacity handles 10/1000 µs surges per IEC 61000-4-5, enabling compact two-stage designs without oversized components. |
Use Scenario: Input-stage transient suppression in wall adapters and portable chargers handling variable AC/DC input conditions. IC Role / Device Role / Timing Role: Secondary-side TVS on 5–20 V output rails to prevent overvoltage damage during adapter fault conditions. Use Value: RoHS-compliant and halogen-free (HE3 suffix) construction meets global environmental compliance for consumer electronics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A | Same SMA package, 22 V VBR, but lower PPPM = 400 W (same rating), higher VC = 35.5 V at 11.3 A | Less stringent clamping; suitable where margin allows higher let-through voltage | Acceptable for non-automotive industrial use where AEC-Q101 is not required |
| SMCJ22A | Larger SMC (DO-214AB) package, same VBR, higher PPPM = 1500 W, VC = 35.5 V at 42.3 A | Requires larger PCB area; used where higher energy absorption is needed | Preferred for high-energy surge zones (e.g., main power entry), not drop-in replacement due to footprint mismatch |
Compared with SMAJ22A and SMCJ22A, the TPSMA22HE3/5AT offers tighter clamping (30.6 V vs. ≥35.5 V), AEC-Q101 qualification, and optimized thermal performance for space-constrained automotive modules - making it the preferred choice where low VC and high-reliability validation are critical.
Availability
TPSMA22HE3/5AT is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power supply designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for TPSMA22HE3/5AT 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 TPSMA series belongs to Vishay's PAR® (Protected Anisotropic Rectifier) transient voltage suppressor family, engineered specifically for high-temperature stability and AEC-Q101 compliance in harsh automotive and industrial environments.
FAQ
What is the exact breakdown voltage range for TPSMA22HE3/5AT?
The TPSMA22HE3/5AT has a guaranteed breakdown voltage (VBR) range of 20.9 V to 23.1 V at 1 mA test current, measured per ANSI/IEEE C62.35. This tolerance ensures consistent clamping behavior across production lots and supports design margining for 24 V nominal systems where VBR must exceed steady-state rail voltage while remaining below downstream IC absolute maximum ratings. The TPSMA22HE3/5AT datasheet specifies this range in its Electrical Characteristics table.
Is TPSMA22HE3/5AT qualified for automotive applications?
Yes, TPSMA22HE3/5AT is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101 qualified construction. It undergoes stress testing including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing to meet automotive reliability requirements. The TPSMA22HE3/5AT is explicitly listed in Vishay's AEC-Q101 qualified product documentation.
What is the maximum clamping voltage of TPSMA22HE3/5AT under surge conditions?
The TPSMA22HE3/5AT has a maximum clamping voltage (VC) of 30.6 V at 13.1 A peak pulse current (IPPM) using the standardized 10/1000 µs waveform. This value is measured under defined PCB mounting conditions (0.2" × 0.2" copper pads) and represents the upper limit of voltage seen by downstream circuitry during a 400 W transient event. The TPSMA22HE3/5AT achieves a clamping ratio of 1.39 (VC/VBR), indicating efficient transient suppression.
Does TPSMA22HE3/5AT have moisture sensitivity level (MSL) rating?
Yes, TPSMA22HE3/5AT meets MSL Level 1 per J-STD-020, with a maximum lead-free reflow peak temperature of 260 °C. This means the device can be stored indefinitely at ambient conditions and placed directly into standard lead-free reflow ovens without baking or special handling - simplifying manufacturing for high-volume automotive and industrial assembly lines. The TPSMA22HE3/5AT packaging and molding compound are validated for this rating.
What is the operating temperature range of TPSMA22HE3/5AT?
The TPSMA22HE3/5AT operates across a junction temperature range of -65 °C to +185 °C, verified per Vishay's qualification testing. This extended range supports deployment in extreme environments such as engine compartments, power inverters, and outdoor telecom enclosures. The TPSMA22HE3/5AT maintains specified electrical parameters throughout this range, with VBR drift compensated by a known temperature coefficient of 0.084 %/°C.
TPSMA22HE3/5AT 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):
- 17.8V
- Voltage - Breakdown (Min):
- 19.8V
- Voltage - Clamping (Max) @ Ipp:
- 31.9V
- Current - Peak Pulse (10/1000µs):
- 12.5A
- 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)
TPSMA22HE3/5AT FAQ
1.How can I place an order for TPSMA22HE3/5AT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA22HE3/5AT 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 TPSMA22HE3/5AT reliable?
The price and inventory of TPSMA22HE3/5AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA22HE3/5AT is usually 5 days.
3.What payment methods are accepted for TPSMA22HE3/5AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA22HE3/5AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA22HE3/5AT?
TPSMA22HE3/5AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA22HE3/5AT 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 TPSMA22HE3/5AT?
For technical support, including TPSMA22HE3/5AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA22HE3/5AT requirements.
6.How does Aetrix verify that TPSMA22HE3/5AT is sourced from the original manufacturer or authorized distributors?
All TPSMA22HE3/5AT 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 TPSMA22HE3/5AT meets industry standards.
7.What is the process for return or replacement of TPSMA22HE3/5AT?
All TPSMA22HE3/5AT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA22HE3/5AT, 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 TPSMA22HE3/5AT part is unused and in its original packaging.
Return procedure for TPSMA22HE3/5AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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