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Vishay General Semiconductor - Diodes Division TPSMC22AHE3_B/I
- Part No.:
- TPSMC22AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC22AHE3_B/I.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,375
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Product details
Overview
TPSMC22AHE3_B/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 22 V breakdown voltage (VBR = 20.9–23.1 V at 1 mA), 1500 W peak pulse power (10/1000 µs), and 185 °C maximum junction temperature - deployed for clamping inductive switching transients on automotive power rails and industrial sensor signal lines.
For engineers reviewing the TPSMC22AHE3_B/I datasheet, TPSMC22AHE3_B/I pinout, TPSMC22AHE3_B/I application, or TPSMC22AHE3_B/I equivalent, key selection criteria include its AEC-Q101 qualification, 1.0 µA max reverse leakage at 18.8 V, 30.6 V clamping voltage at 49.0 A surge current, and RoHS-compliant matte tin-plated leads solderable per J-STD-002.
Technical Context
This TVS diode operates as a unidirectional clamping device with an anisotropic rectifier structure optimized for high-temperature stability. Its junction passivation enables reliable operation up to TJ = 185 °C and supports automotive-grade thermal cycling requirements.
The device delivers low incremental surge resistance and fast response time to suppress transients induced by inductive load switching. It meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101 when ordered with HE3 or HM3 suffixes.
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 under standardized test conditions |
| VWM | 18.8 V - maximum continuous reverse working voltage before significant leakage begins |
| VC @ IPPM | 30.6 V at 49.0 A - peak clamped voltage during 10/1000 µs surge, directly limiting downstream IC stress |
| PPPM | 1500 W - peak pulse power handling capability determines survivability against lightning or ESD-like events |
| IR @ VWM | ≤1.0 µA - ultra-low leakage ensures minimal standby power loss in battery-critical systems |
| TJ max. | +185 °C - enables deployment in under-hood automotive environments without derating penalties |
| Polarity | Unidirectional - provides reverse-biased clamping only; requires correct orientation relative to protected line polarity |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded case with UL 94 V-0 flammability rating; cathode indicated by color band; terminals are matte tin plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected circuit; conducts during forward surge or bias |
| Cathode | Clamping reference terminal | Connected to higher-potential rail (e.g., VBAT); reverse-biased during transient suppression |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivated anisotropic rectifier | Enables stable VBR drift <0.084 %/°C and consistent clamping across temperature extremes |
| AEC-Q101 qualification (HE3 suffix) | Validates reliability for automotive powertrain and body electronics per stress-test requirements |
| 1500 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 surge immunity without external series impedance |
| MSL Level 1, 260 °C reflow compatible | Allows single-pass lead-free reflow assembly without moisture-induced popcorn failure |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage margin between clamping and protected IC absolute maximum ratings |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Suppressing load-dump and jump-start transients on 24 V vehicle battery lines feeding ECUs and lighting modules. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between VBAT and ground, clamping reverse transients above 30.6 V. Use Value: Prevents latch-up or gate oxide rupture in downstream MOSFET drivers and CAN transceivers during ISO 7637-2 Pulse 5a events. | Use Scenario: Protecting analog output pins of pressure/temperature sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Bidirectionally unneeded clamping element on 0–10 V or 4–20 mA signal paths exposed to relay coil kickback. Use Value: Limits induced voltage spikes to ≤30.6 V, preserving ADC input integrity and avoiding protection diode forward conduction. |
| Consumer Power Adapter Input Stage | Telecom DC Feeder Line Surge Suppression |
Use Scenario: Safeguarding primary-side controllers and bridge rectifiers in universal-input AC/DC adapters against line surges. IC Role / Device Role / Timing Role: Parallel-connected TVS on bulk capacitor input, triggered within nanoseconds of overvoltage onset. Use Value: Absorbs 1500 W pulses without degradation, maintaining system uptime during EN 61000-4-5 testing. | Use Scenario: Shielding PoE-powered equipment front-ends from induced surges on long-distance DC feeder cables. IC Role / Device Role / Timing Role: Standoff-rated clamping device on +48 V DC feed line, referenced to local ground plane. Use Value: Withstands repeated 10/1000 µs surges up to 49 A while holding leakage below 1 µA at 18.8 V for low-power standby compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A | Lower PPPM (600 W), same VBR range, SMB package (smaller footprint, lower thermal mass) | Not AEC-Q101 qualified; limited to non-automotive industrial use | Select when board space is constrained and surge energy is ≤600 W |
| TPSMC22AHM3_B/I | Identical electrical specs; halogen-free molding compound and whisker-tested terminations | Required for strict environmental compliance (e.g., EU automotive Tier 1 supply chains) | Choose when halogen-free and JESD 201 Class 2 whisker resistance are mandatory |
Compared with SMBJ22A and TPSMC22AHM3_B/I, the TPSMC22AHE3_B/I offers the highest surge robustness (1500 W) in an AEC-Q101-qualified SMC package, balancing automotive reliability, thermal performance, and RoHS compliance without halogen restrictions.
Availability
TPSMC22AHE3_B/I is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface design, and telecom DC feeder line surge suppression requiring stable component supply and full traceability.
Supply support for TPSMC22AHE3_B/I 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on high-reliability, high-temperature, and automotive-qualified components.
The TPSMC series targets high-energy transient suppression in harsh environments; it was engineered specifically for AEC-Q101 compliance, 185 °C operation, and robust 10/1000 µs surge handling in automotive and industrial power systems.
FAQ
What is the clamping voltage of the TPSMC22AHE3_B/I at its rated peak pulse current?
The TPSMC22AHE3_B/I has a maximum clamping voltage (VC) of 30.6 V when subjected to its peak pulse current (IPPM) of 49.0 A under the standard 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet 88407 and defines the upper voltage limit imposed on protected circuits during surge events. The TPSMC22AHE3_B/I maintains this clamping performance across its full operating temperature range.
Is the TPSMC22AHE3_B/I qualified for automotive applications?
Yes, the TPSMC22AHE3_B/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101-qualified variants. It supports automotive use cases including engine control units, body electronics, and ADAS power supplies where junction temperatures reach up to +185 °C. The TPSMC22AHE3_B/I undergoes stress testing per AEC-Q101 requirements for reliability validation.
What is the maximum reverse leakage current of the TPSMC22AHE3_B/I at its stand-off voltage?
The TPSMC22AHE3_B/I exhibits a maximum reverse leakage current (IR) of 1.0 µA at its stand-off voltage (VWM) of 18.8 V, measured at TA = 25 °C. At elevated temperature (TJ = 150 °C), leakage increases to ≤10 µA - a value still compatible with low-power sensor and battery-backed systems. This low leakage is critical for minimizing quiescent power loss in always-on automotive modules using the TPSMC22AHE3_B/I.
What package type does the TPSMC22AHE3_B/I use, and what are its mounting requirements?
The TPSMC22AHE3_B/I uses the SMC (DO-214AB) surface-mount package, with dimensions of 7.11 mm × 6.22 mm × 2.62 mm. Mounting requires 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads at each terminal for optimal thermal dissipation and surge current handling. The TPSMC22AHE3_B/I is MSL Level 1 and compatible with standard lead-free reflow profiles peaking at 260 °C.
How does the TPSMC22AHE3_B/I differ from the TPSMC22AHM3_B/I variant?
The TPSMC22AHE3_B/I and TPSMC22AHM3_B/I share identical electrical specifications, thermal ratings, and mechanical outline. Their difference lies solely in material composition: the HM3 suffix indicates halogen-free molding compound and JESD 201 Class 2 whisker-resistant terminations, whereas the HE3 suffix confirms RoHS compliance and AEC-Q101 qualification without halogen-free requirement. Both variants are drop-in replacements electrically, but the TPSMC22AHE3_B/I is selected when halogen content is not restricted.
TPSMC22AHE3_B/I 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/I FAQ
1.How can I place an order for TPSMC22AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC22AHE3_B/I 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/I reliable?
The price and inventory of TPSMC22AHE3_B/I 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/I is usually 5 days.
3.What payment methods are accepted for TPSMC22AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC22AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC22AHE3_B/I?
TPSMC22AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC22AHE3_B/I 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/I?
For technical support, including TPSMC22AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC22AHE3_B/I requirements.
6.How does Aetrix verify that TPSMC22AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All TPSMC22AHE3_B/I 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/I meets industry standards.
7.What is the process for return or replacement of TPSMC22AHE3_B/I?
All TPSMC22AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC22AHE3_B/I, 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/I part is unused and in its original packaging.
Return procedure for TPSMC22AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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