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Vishay General Semiconductor - Diodes Division TPSMA22AHE3/61T
- Part No.:
- TPSMA22AHE3/61T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA22AHE3/61T.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,059
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Product details
Overview
TPSMA22AHE3/61T 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 22 V nominal breakdown voltage (VBR = 20.9–23.1 V at IT = 1.0 mA), 30.6 V maximum clamping voltage (VC) at 13.1 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the TPSMA22AHE3/61T datasheet, TPSMA22AHE3/61T pinout, TPSMA22AHE3/61T application, or TPSMA22AHE3/61T equivalent, key selection criteria include unidirectional polarity, 185 °C junction temperature rating, AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.39), and compatibility with high-reliability PCB layouts using 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamping protection device in parallel with sensitive circuit nodes, activating when reverse voltage exceeds its breakdown threshold. Its passivated anisotropic rectifier structure enables fast response (<1 ns), low incremental surge resistance, and stable performance up to TJ = 185 °C - critical for under-hood automotive electronics and industrial motor drives subject to repetitive load-switching transients.
The device is rated for 400 W peak pulse power (10/1000 μs), 40 A non-repetitive forward surge current (8.3 ms half-sine), and exhibits a typical VBR temperature coefficient of +0.084 %/°C. It meets MSL Level 1 per J-STD-020 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) | 20.9 / 22.0 / 23.1 V at IT = 1.0 mA - defines precise clamping onset voltage for accurate overvoltage threshold setting |
| VWM | 18.8 V - maximum continuous reverse working voltage before leakage exceeds 1.0 μA at 25 °C |
| VC @ IPPM | 30.6 V at 13.1 A - clamped voltage during 400 W transient, limiting stress on downstream components |
| PPPM | 400 W (10/1000 μs) - peak surge energy handling capacity compatible with IEC 61000-4-5 Level 4 testing |
| TJ max. | +185 °C - enables operation in high-temperature environments such as engine control units without derating |
| Polarity | Unidirectional - protects against positive transients only; requires correct orientation relative to DC bias |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, cathode indicated by color band. Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H), with 5.0 mm × 5.0 mm recommended copper pad area per terminal for thermal and surge current handling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VREV > 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 |
|---|---|
| Junction passivation optimized design | Enables stable VBR and low leakage (<1.0 μA at VWM) across -65 °C to +185 °C operating range |
| 400 W peak pulse power (10/1000 μs) | Supports robust protection against lightning-induced surges and inductive switching spikes in 24 V systems |
| MSL Level 1, 260 °C reflow compatible | Allows single-pass lead-free reflow assembly without moisture sensitivity concerns or baking requirements |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including powertrain, body electronics, and ADAS sensor interfaces |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes voltage overshoot during clamping, reducing risk of damage to 3.3 V or 5 V logic interfaces |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply rails in engine control modules from load-dump and alternator ripple transients. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed between battery rail and local regulator input. Use Value: Limits transient voltage to ≤30.6 V, preventing damage to downstream LDOs and microcontrollers rated for 36 V absolute maximum. | Use Scenario: Shielding analog output lines of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional TPSMA22AHE3/61T guards against positive-going ESD and cable discharge events. Use Value: Clamps 8 kV contact ESD pulses within <1 ns while maintaining <1.0 μA leakage at 18.8 V, preserving signal integrity. |
| Telecom DC Power Feeding | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding PoE-powered remote units (e.g., IP cameras) against induced surges on 48 V DC feed lines. IC Role / Device Role / Timing Role: Parallel-connected TVS on input side of DC-DC converter stage. Use Value: Withstands 400 W surges without degradation, enabling compliance with IEC 61000-4-5 (1.2/50 μs + 8/20 μs combo wave). | Use Scenario: Suppressing back-EMF spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, washing machines). IC Role / Device Role / Timing Role: Mounted across motor terminals to clamp inductive kickback during PWM switching. Use Value: Handles 40 A non-repetitive surge (8.3 ms) and maintains stable VBR after repeated stress, extending motor driver lifespan. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A (ON Semiconductor) | Same VBR range (20.9–23.1 V), but SMB package (DO-214AA); 600 W PPPM, higher thermal mass | Higher surge rating suits heavier industrial loads; larger footprint may conflict with space-constrained automotive layouts | Select SMBJ22A if board space allows and 600 W rating is required; verify pad layout compatibility |
| 1.5SMC22A (Littelfuse) | Same electrical specs, SMC (DO-214AB) package; 1.5 kW PPPM, higher IPPM (27.3 A), but larger size and lower MSL rating (Level 2) | Better suited for telecom infrastructure where higher surge margin is prioritized over automotive qualification | Choose 1.5SMC22A for non-automotive applications needing higher surge headroom; not AEC-Q101 qualified |
Compared with SMBJ22A and 1.5SMC22A, TPSMA22AHE3/61T offers the smallest footprint (SMA), AEC-Q101 qualification, and MSL Level 1 - making it optimal for space- and reliability-critical automotive and portable industrial designs where 400 W surge capability suffices.
Availability
TPSMA22AHE3/61T is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power feeding circuits, and consumer appliance motor controls requiring stable component supply and full traceability.
Supply support for TPSMA22AHE3/61T 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 TPSMA series is part of Vishay's PAR® (Protected Anisotropic Rectifier) TVS platform, engineered specifically for high-temperature stability and repeatable clamping performance in harsh-environment applications including engine compartments and industrial motor drives.
FAQ
What is the breakdown voltage tolerance for TPSMA22AHE3/61T?
The TPSMA22AHE3/61T has a guaranteed breakdown voltage range of 20.9 V to 23.1 V at test current IT = 1.0 mA, per the Vishay datasheet (Doc. #88405). This ±5% tolerance ensures predictable clamping behavior across production lots and supports reliable overvoltage protection design without excessive margining.
Is TPSMA22AHE3/61T suitable for automotive applications?
Yes, TPSMA22AHE3/61T is AEC-Q101 qualified and carries the HE3 suffix indicating RoHS compliance and automotive-grade reliability. It operates up to +185 °C junction temperature and passes temperature cycling, HTRB, and ESD tests required for under-hood and body electronics - making TPSMA22AHE3/61T appropriate for engine control, ADAS sensors, and infotainment power rails.
What is the maximum clamping voltage of TPSMA22AHE3/61T at rated surge current?
The maximum clamping voltage of TPSMA22AHE3/61T is 30.6 V at 13.1 A peak pulse current (IPPM), measured with a 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during a 400 W transient event and is critical for ensuring downstream components remain within their absolute maximum ratings.
Does TPSMA22AHE3/61T have bidirectional polarity?
No, TPSMA22AHE3/61T is unidirectional only, as confirmed in the Vishay datasheet. It protects against positive transients on the cathode side relative to anode (i.e., when cathode is at higher potential than anode). For bidirectional protection, a separate device or dual-diode configuration would be required - TPSMA22AHE3/61T must be oriented correctly in-circuit to avoid forward conduction during normal operation.
What is the thermal resistance junction-to-ambient for TPSMA22AHE3/61T?
The datasheet does not specify RθJA directly for TPSMA22AHE3/61T. However, with its SMA (DO-214AC) package mounted on 5.0 mm × 5.0 mm copper pads per terminal, typical RθJA is ~100 °C/W. This enables safe operation at 1.0 W steady-state dissipation up to +100 °C ambient - consistent with its 185 °C TJ max. rating and intended use in pulsed-transient rather than continuous-power applications.
TPSMA22AHE3/61T 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):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 13.1A
- 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)
TPSMA22AHE3/61T FAQ
1.How can I place an order for TPSMA22AHE3/61T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA22AHE3/61T 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 TPSMA22AHE3/61T reliable?
The price and inventory of TPSMA22AHE3/61T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA22AHE3/61T is usually 5 days.
3.What payment methods are accepted for TPSMA22AHE3/61T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA22AHE3/61T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA22AHE3/61T?
TPSMA22AHE3/61T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA22AHE3/61T 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 TPSMA22AHE3/61T?
For technical support, including TPSMA22AHE3/61T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA22AHE3/61T requirements.
6.How does Aetrix verify that TPSMA22AHE3/61T is sourced from the original manufacturer or authorized distributors?
All TPSMA22AHE3/61T 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 TPSMA22AHE3/61T meets industry standards.
7.What is the process for return or replacement of TPSMA22AHE3/61T?
All TPSMA22AHE3/61T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA22AHE3/61T, 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 TPSMA22AHE3/61T part is unused and in its original packaging.
Return procedure for TPSMA22AHE3/61T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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