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Vishay General Semiconductor - Diodes Division TPSMC22AHE3_B/H
- Part No.:
- TPSMC22AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC22AHE3_B/H.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,998
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Product details
Overview
TPSMC22AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection on power and signal lines. It features a 22 V nominal breakdown voltage (VBR = 20.9–23.1 V at 1 mA), 18.8 V stand-off voltage (VWM), 30.6 V clamping voltage (VC) 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 power rails and industrial sensor interfaces.
For engineers reviewing the TPSMC22AHE3_B/H datasheet, TPSMC22AHE3_B/H pinout, TPSMC22AHE3_B/H application, or TPSMC22AHE3_B/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, MSL Level 1 rating, 10 μA max reverse leakage at VWM, and compatibility with 260 °C reflow profiles per J-STD-020.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve low incremental surge resistance and excellent clamping performance under fast-rising transients. Its 10/1000 μs waveform response delivers stable 30.6 V clamping at 49 A, with thermal stability validated to TJ = 185 °C.
The device is rated for 200 A non-repetitive forward surge current (8.3 ms half-sine), exhibits 3.5 V max forward voltage at 100 A, and maintains <10 μA reverse leakage at 18.8 V stand-off voltage - enabling reliable overvoltage protection in high-temperature automotive ECUs and industrial motor drives.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 20.9 / 22.0 / 23.1 V at 1 mA - defines precise voltage threshold where avalanche conduction begins under transient stress |
| VWM | 18.8 V - maximum continuous DC or RMS operating voltage before leakage exceeds 10 μA |
| VC @ IPPM | 30.6 V at 49 A - clamped voltage during 1500 W surge, limiting downstream IC stress |
| PPPM | 1500 W (10/1000 μs) - peak transient energy absorption capability without failure |
| TJ max | +185 °C - enables operation in under-hood automotive environments and sealed industrial enclosures |
| Polarity | Unidirectional - protects against positive-going transients only; cathode band denotes polarity |
| MSL Rating | Level 1 (260 °C peak) - supports standard lead-free reflow without moisture-induced damage |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, UL 94 V-0 molding compound. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or low-impedance reference; carries full surge current during clamping |
| Cathode | Protected line connection | Connected to line being protected (e.g., 24 V rail); voltage referenced to anode during clamp event |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/5a surges and IEC 61000-4-5 Level 4 (4 kV) without degradation |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage margin between protection threshold and safe operating limit of downstream MOSFETs or MCUs |
| Junction temp. capability to +185 °C | Enables placement near heat sources (e.g., power inductors, motor drivers) without derating |
| MSL Level 1, 260 °C reflow compatible | Eliminates bake requirements and supports single-pass assembly in high-volume automotive PCB manufacturing |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs in body control modules (BCM) and ADAS domain controllers from load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and input filter capacitor to clamp surges before LDOs or PMICs. Use Value: Clamps 1500 W transients to ≤30.6 V, preventing latch-up or gate oxide damage in 3.3 V/5 V logic supplies downstream. | Use Scenario: Shielding analog outputs (e.g., 4–20 mA current loop) and CAN transceiver I/O pins from ESD and cable discharge events in factory automation sensors. IC Role / Device Role / Timing Role: Low-capacitance TVS placed at connector interface to shunt fast transients (<1 ns rise time) before signal conditioning circuitry. Use Value: Sub-10 μA leakage at 18.8 V ensures minimal impact on precision current-loop accuracy while meeting IEC 61000-4-2 Level 4 (15 kV air) immunity. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding PoE-powered equipment (e.g., IP cameras, access points) against surges induced on 48 V DC input lines from lightning or grid switching. IC Role / Device Role / Timing Role: Primary surge suppression stage ahead of DC-DC converters and hot-swap controllers. Use Value: 185 °C rating allows mounting directly on high-current traces without thermal derating; 30.6 V clamp prevents overvoltage on 48 V → 12 V buck stages. | Use Scenario: Suppressing commutation spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, washing machines). IC Role / Device Role / Timing Role: Parallel-mounted across motor terminals to absorb inductive kickback energy during PWM switching. Use Value: 200 A IFSM rating handles repetitive 8.3 ms half-sine surges from motor turn-off; RoHS-compliant HE3 suffix meets global regulatory 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 |
|---|---|---|---|
| SMAJ22A | Lower PPPM (400 W), same VBR range, SMA package (smaller footprint, lower thermal mass) | Limited to lower-energy transients (e.g., ESD-only); not suitable for ISO 7637-2 load dump | Select when space-constrained and surge energy ≤400 W; verify thermal dissipation in layout |
| TPSMC22AHM3_B/H | Identical electrical specs; halogen-free molding compound (vs. RoHS-only HE3), same AEC-Q101 qualification | Required for halogen-free compliance mandates (e.g., EU WEEE, specific OEM specs) | Choose HM3 when halogen-free material is contractually required; otherwise HE3 offers identical protection |
Compared with SMAJ22A and TPSMC22AHM3_B/H, the TPSMC22AHE3_B/H provides superior 1500 W surge handling in the robust SMC package while maintaining AEC-Q101 qualification and 185 °C operation - making it the preferred choice for automotive and industrial applications demanding high-energy clamping without layout redesign.
Availability
TPSMC22AHE3_B/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power inputs requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant surge protection.
Supply support for TPSMC22AHE3_B/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 reliability, high-temperature operation, and automotive qualification.
The TPSMC22AHE3_B/H belongs to Vishay's PAR® series of high-power surface-mount TVS diodes, engineered specifically for harsh-environment transient suppression in automotive, industrial, and telecom infrastructure where sustained 185 °C operation and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of the TPSMC22AHE3_B/H at its rated peak pulse current?
The TPSMC22AHE3_B/H has a maximum clamping voltage (VC) of 30.6 V at 49 A peak pulse current (IPPM), measured using the standardized 10/1000 μs double-exponential waveform. This value ensures predictable overvoltage limiting during surge events and is verified per ANSI/IEEE C62.35. The TPSMC22AHE3_B/H maintains this clamping performance across its full operating temperature range up to +185 °C junction temperature.
Is the TPSMC22AHE3_B/H qualified for automotive applications?
Yes, the TPSMC22AHE3_B/H is AEC-Q101 qualified and explicitly designated for automotive use with the "HE3" suffix. It undergoes rigorous stress testing including high-temperature reverse bias (HTRB), temperature cycling, and ESD per JEDEC standards. The TPSMC22AHE3_B/H is rated for operation up to +185 °C junction temperature and meets MSL Level 1 reflow requirements - making it suitable for engine control units, body electronics, and ADAS systems.
What does the "HE3" suffix mean in TPSMC22AHE3_B/H?
The "HE3" suffix in TPSMC22AHE3_B/H indicates RoHS-compliant construction and AEC-Q101 qualification. It denotes matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, plus whisker resistance per JESD 201 Class 2. The "B/H" portion specifies packaging: "B" is the revision code, and "H" denotes 7-inch tape-and-reel delivery with 850 units per reel. The TPSMC22AHE3_B/H is not halogen-free; for that variant, use TPSMC22AHM3_B/H.
Can the TPSMC22AHE3_B/H be used in bidirectional configurations?
No, the TPSMC22AHE3_B/H is unidirectional only, as confirmed in the Vishay datasheet. It protects against positive-going transients on the cathode side relative to the anode. For bidirectional protection (e.g., AC lines or data lines with ± transients), two TPSMC22AHE3_B/H devices must be connected in series opposition, or a dedicated bidirectional TVS such as TPSMC22CA should be selected. The TPSMC22AHE3_B/H polarity is marked by a cathode band on the SMC package.
What is the maximum reverse leakage current of the TPSMC22AHE3_B/H at its stand-off voltage?
The TPSMC22AHE3_B/H exhibits a maximum reverse leakage current (IR) of 1.0 μA at its 18.8 V stand-off voltage (VWM) and 25 °C ambient temperature. At elevated temperature (TJ = 150 °C), leakage increases to ≤10 μA - still well within design margins for precision analog or low-power microcontroller inputs. This low leakage ensures minimal power loss and signal integrity impact in always-on automotive and industrial circuits using the TPSMC22AHE3_B/H.
TPSMC22AHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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 (SMC)
TPSMC22AHE3_B/H FAQ
1.How can I place an order for TPSMC22AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC22AHE3_B/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 TPSMC22AHE3_B/H reliable?
The price and inventory of TPSMC22AHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC22AHE3_B/H is usually 5 days.
3.What payment methods are accepted for TPSMC22AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC22AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC22AHE3_B/H?
TPSMC22AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC22AHE3_B/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 TPSMC22AHE3_B/H?
For technical support, including TPSMC22AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC22AHE3_B/H requirements.
6.How does Aetrix verify that TPSMC22AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All TPSMC22AHE3_B/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 TPSMC22AHE3_B/H meets industry standards.
7.What is the process for return or replacement of TPSMC22AHE3_B/H?
All TPSMC22AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC22AHE3_B/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 TPSMC22AHE3_B/H part is unused and in its original packaging.
Return procedure for TPSMC22AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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