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Vishay General Semiconductor - Diodes Division TPSMC22AHE3/57T
- Part No.:
- TPSMC22AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC22AHE3/57T.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,599
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Product details
Overview
TPSMC22AHE3/57T from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-reliability overvoltage protection of sensitive electronics. It features a 22 V nominal breakdown voltage (VBR), 18.8 V stand-off voltage (VWM), 30.6 V maximum clamping voltage at 49 A peak pulse current, 1500 W peak pulse power (10/1000 μs), and operates up to +185 °C junction temperature - deployed in automotive sensor signal lines and industrial MOSFET gate protection.
For engineers reviewing the TPSMC22AHE3/57T datasheet, TPSMC22AHE3/57T pinout, TPSMC22AHE3/57T application, or TPSMC22AHE3/57T equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, thermal derating above 25 °C, clamping performance under 10/1000 μs transients, and compatibility with reflow profiles meeting J-STD-020 MSL level 1.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping under repetitive surge stress while maintaining low incremental surge resistance. Its junction passivation enables operation at TJ = 185 °C, supporting automotive under-hood and industrial high-temperature environments.
The device responds in sub-nanosecond time to voltage transients induced by inductive load switching or ESD events, clamping reverse surges before downstream ICs or MOSFETs experience damage. It is rated for non-repetitive 200 A forward surge current (8.3 ms half-sine) and exhibits a +0.084 %/°C temperature coefficient of VBR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 20.9 V / 22.0 V / 23.1 V - ensures reliable conduction onset above system operating voltage with margin against false triggering |
| VWM | 18.8 V - maximum continuous reverse working voltage without leakage exceeding 1 μA at 25 °C |
| VC @ IPPM | 30.6 V - clamping voltage at 49 A peak pulse current limits stress on protected circuitry during transients |
| PPPM | 1500 W - peak pulse power handling capability with 10/1000 μs waveform defines surge energy absorption capacity |
| TJ max. | +185 °C - enables use in high-temperature automotive and industrial applications without thermal derating penalties |
| Polarity | Unidirectional - protects only against reverse-polarity transients; cathode band denotes terminal orientation |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, UL 94 V-0 molding compound, MSL level 1 compliant, 0.320" × 0.246" footprint (8.13 mm × 6.22 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction or clamping | Connected to ground or low-impedance return path; must handle 200 A surge (8.3 ms) |
| Cathode | Current exit during clamping; marked by color band | Connected to protected line (e.g., sensor output); defines polarity-sensitive placement |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivated anisotropic rectifier | Enables stable VBR drift < ±5 % over lifetime and >1000 surge cycles at rated conditions |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive-grade reliability including HTOL, TC, UHAST, and mechanical shock per AEC standard |
| 1500 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when properly laid out with low-inductance paths |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns response), improving protection margin |
Applications
| Automotive Sensor Protection | Industrial Motor Drive Gate Protection |
|---|---|
Use Scenario: Protecting analog output lines of ABS wheel speed sensors exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamps reverse transients above 18.8 V while remaining transparent during normal 5–12 V operation. Use Value: Prevents latch-up or permanent damage to precision op-amps and ADC front-ends under ISO 7637-2 Pulse 1/2a/5a conditions. | Use Scenario: Shielding high-side N-channel MOSFET gates from Miller-induced voltage spikes during fast switching in 24 V PLC outputs. IC Role / Device Role / Timing Role: Fast-clamping diode placed between gate and source to clamp dv/dt-induced overshoot before gate oxide breakdown. Use Value: Enables reliable 100 kHz+ PWM operation without gate driver degradation, validated at TJ = 150 °C. |
| Telecom Line Interface Protection | Consumer Power Supply Input Stage |
Use Scenario: Safeguarding RS-485 transceiver inputs connected to outdoor cabling subject to lightning-induced surges. IC Role / Device Role / Timing Role: Primary protection element shunting transients to ground before signal conditioning circuitry. Use Value: Meets ITU-T K.21 Basic Protection Level (4 kV/500 Ω) with clamping below 31 V, preserving receiver common-mode range. | Use Scenario: Secondary overvoltage clamp on 19 V DC input rails of notebook adapters after primary MOV suppression. IC Role / Device Role / Timing Role: Precision secondary clamp limiting residual transients to ≤30.6 V to protect synchronous rectifier controllers. Use Value: Reduces need for oversized input capacitors and improves no-load regulation stability under EN 61000-4-4 EFT stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A | Lower PPPM (400 W), same VBR range, SMA package (smaller thermal mass) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a or IEC 61000-4-5 Level 4 | Select when board space is constrained and surge energy is ≤200 mJ |
| TPSMC22AHM3/57T | Identical electrical specs; halogen-free molding compound and whisker-resistant plating per JESD 201 Class 2 | Required for RoHS-compliant, halogen-free BOMs in EU automotive programs | Choose for compliance-critical deployments where material content must meet VW 80101 or GMW3172 |
Compared with SMAJ22A and TPSMC22AHM3/57T, the TPSMC22AHE3/57T delivers higher surge robustness in the same SMC footprint while meeting AEC-Q101 without halogen-free constraints - making it optimal for cost-sensitive, high-reliability automotive and industrial designs where JEDEC MSL-1 reflow compatibility is mandatory.
Availability
TPSMC22AHE3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial motor drive gate circuits, telecom line interfaces, and consumer power supply input stages requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPSMC22AHE3/57T 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, high-temperature, and automotive-qualified components.
The TPSMC series belongs to Vishay's PAR® (Protection Against Transients) family, engineered specifically for robust, high-power transient suppression in harsh environments - targeting automotive powertrain, ADAS sensor modules, and industrial automation systems.
FAQ
What is the maximum clamping voltage of the TPSMC22AHE3/57T at its rated peak pulse current?
The TPSMC22AHE3/57T has a maximum clamping voltage (VC) of 30.6 V at its specified peak pulse current (IPPM) of 49 A, measured under the standardized 10/1000 μs double-exponential waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during surge events. The TPSMC22AHE3/57T maintains this clamping performance due to its low incremental surge resistance and optimized junction design.
Is the TPSMC22AHE3/57T qualified for automotive applications?
Yes, the TPSMC22AHE3/57T is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's official datasheet (Document Number: 88407). It undergoes stress testing including high-temperature operating life (HTOL), temperature cycling (TC), and unbiased highly accelerated stress test (UHAST) per AEC-Q101 requirements. The TPSMC22AHE3/57T is approved for use in automotive subsystems such as body control modules, sensor interfaces, and power distribution units.
What does the "HE3" suffix indicate in TPSMC22AHE3/57T?
The "HE3" suffix in TPSMC22AHE3/57T denotes a RoHS-compliant, AEC-Q101-qualified variant with matte tin-plated leads that meet J-STD-002 and JESD 22-B102 solderability standards, plus JESD 201 Class 2 whisker resistance. The "57T" denotes tape-and-reel packaging in 13-inch reels (3500 pcs/reel). This suffix differentiates it from non-automotive variants and confirms compliance with automotive reliability and environmental standards.
Can the TPSMC22AHE3/57T be used in bidirectional protection configurations?
No, the TPSMC22AHE3/57T is unidirectional only, as explicitly stated in the datasheet's FEATURES section. It conducts and clamps only in reverse bias (cathode positive relative to anode). For bidirectional transient protection, two TPSMC22AHE3/57T devices must be connected in series opposition, or a dedicated bidirectional TVS such as the SMBJ22CA should be selected instead. Using a single TPSMC22AHE3/57T in bidirectional mode risks failure during positive-going transients.
What is the thermal derating behavior of the TPSMC22AHE3/57T above 25 °C ambient?
The TPSMC22AHE3/57T follows a linear derating curve for peak pulse power above 25 °C, as shown in Figure 2 of the datasheet: power capability decreases to ~50 % at TJ = 125 °C and ~20 % at TJ = 175 °C. Derating is based on junction temperature, not ambient - thus PCB copper pad area (0.31" × 0.31" recommended) and thermal vias directly impact usable surge rating. The TPSMC22AHE3/57T retains full functionality up to TJ = 185 °C, but pulse energy must be reduced accordingly.
TPSMC22AHE3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- 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):
- 49A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCJ)
TPSMC22AHE3/57T FAQ
1.How can I place an order for TPSMC22AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC22AHE3/57T 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 TPSMC22AHE3/57T reliable?
The price and inventory of TPSMC22AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC22AHE3/57T is usually 5 days.
3.What payment methods are accepted for TPSMC22AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC22AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC22AHE3/57T?
TPSMC22AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC22AHE3/57T 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 TPSMC22AHE3/57T?
For technical support, including TPSMC22AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC22AHE3/57T requirements.
6.How does Aetrix verify that TPSMC22AHE3/57T is sourced from the original manufacturer or authorized distributors?
All TPSMC22AHE3/57T 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 TPSMC22AHE3/57T meets industry standards.
7.What is the process for return or replacement of TPSMC22AHE3/57T?
All TPSMC22AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC22AHE3/57T, 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 TPSMC22AHE3/57T part is unused and in its original packaging.
Return procedure for TPSMC22AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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