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Vishay General Semiconductor - Diodes Division TPSMA22AHE3_A/I
- Part No.:
- TPSMA22AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA22AHE3_A/I.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,528
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Product details
Overview
TPSMA22AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching and lightning-induced transients on power rails and signal lines. It features a 22.0 V nominal breakdown voltage (VBR), 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 - deployed in automotive power supply protection and industrial sensor interface circuits.
For engineers reviewing the TPSMA22AHE3_A/I datasheet, TPSMA22AHE3_A/I pinout, TPSMA22AHE3_A/I application, or TPSMA22AHE3_A/I equivalent, key selection criteria include unidirectional polarity, SMA (DO-214AC) package compatibility, AEC-Q101 qualification status, TJ = 185 °C thermal rating, and 1.0 µA reverse leakage at 18.8 V stand-off voltage.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with optimized junction passivation for stable clamping under high-temperature stress. Its unidirectional architecture provides low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of fast-rising transients without forward conduction during normal operation.
The device is rated for 400 W peak pulse power per 10/1000 µs waveform at 25 °C, derated linearly above TA = 25 °C per Fig. 2, and supports repetitive surge duty cycles up to 0.01 %. It meets MSL Level 1 per J-STD-020 with 260 °C reflow peak and passes JESD201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 20.9 V / 22.0 V / 23.1 V - ensures reliable turn-on before downstream IC damage threshold in 24 V systems |
| VWM | 18.8 V - maximum continuous reverse working voltage; sets safe operating margin below VBR |
| VC @ IPPM | 30.6 V at 13.1 A - clamping voltage limits transient energy delivered to protected circuitry |
| PPPM | 400 W - peak pulse power handling capability for standard 10/1000 µs lightning surge waveforms |
| TJ max | +185 °C - enables use in under-hood automotive environments and high-power industrial enclosures |
| IR @ VWM | 1.0 µA - ultra-low leakage preserves battery life and signal integrity in always-on sensor nodes |
| Package | SMA (DO-214AC) - industry-standard SMD footprint with 0.2" × 0.2" copper pad requirement for thermal dissipation |
Pinout & Package
Package: SMA (DO-214AC), molded case with matte tin-plated leads, cathode indicated by color band. Compliant with UL 94 V-0 flammability rating and J-STD-002 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to ground or lower-potential rail in unidirectional TVS configuration |
| Cathode | Current exit terminal during reverse-biased clamping | Connected to protected line (e.g., 24 V supply or CAN_H); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| Junction passivation | Reduces parameter drift and leakage increase under high-temperature bias stress (>150 °C) |
| Low VF (3.5 V @ 25 A) | Minimizes forward conduction loss during fault events, reducing self-heating during sustained surges |
| MSL Level 1 | Enables single-reflow assembly without moisture sensitivity concerns or baking requirements |
| 0.01 % duty cycle rating | Supports repetitive transient suppression in motor drive gate drivers and solenoid control circuits |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
|
Use Scenario: Protecting 24 V supply inputs in engine control units (ECUs) against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between battery rail and DC/DC input stage. Use Value: Limits transient voltage to ≤30.6 V, preventing overvoltage failure of downstream PMICs and microcontrollers rated for 36 V absolute max. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop) in pressure sensors exposed to ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS connected between signal line and ground, with cathode tied to signal. Use Value: Sub-1 ns response time and 1.0 µA leakage preserve signal accuracy while suppressing ±8 kV contact ESD per IEC 61000-4-2. |
| Telecom DC Power Interface | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Shielding PoE-powered Ethernet switch ports from induced surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on midspan injector output, upstream of DC/DC converter. Use Value: 400 W peak power rating handles IEEE 802.3bt-compliant surge tests; 185 °C rating supports sealed enclosure thermal profiles. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in washing machine control boards. IC Role / Device Role / Timing Role: Freewheeling TVS across motor terminals, oriented to conduct only during inductive kickback. Use Value: 40 A IFSM withstands repeated commutation surges; unidirectional polarity avoids unintended forward conduction during PWM operation. |
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 | Same VBR (22.0 V) and VC (35.5 V), but lower PPPM (600 W vs. 400 W), larger SMB (DO-214AA) package | Higher surge margin but requires 25 % larger PCB area; not AEC-Q101 qualified in standard grade | Select when higher single-pulse robustness is prioritized over space-constrained layouts and automotive qualification |
| SMCJ22A | Same VBR (22.0 V), but higher PPPM (1500 W), larger SMC (DO-214AB) package, VC = 36.0 V | Designed for heavy industrial surge immunity (IEC 61000-4-5 Level 4); lacks AEC-Q101 certification | Choose for non-automotive infrastructure equipment where board space permits and >1 kW surge handling is required |
Compared with SMBJ22A and SMCJ22A, the TPSMA22AHE3_A/I delivers AEC-Q101 qualification and SMA footprint in a thermally optimized 400 W solution - ideal for space-limited automotive modules requiring production traceability and high-reliability validation.
Availability
TPSMA22AHE3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom power supplies, and consumer appliance motor controls requiring stable component supply across extended temperature and long-life production programs.
Supply support for TPSMA22AHE3_A/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 is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and high-temperature performance.
The TPSMA22AHE3_A/I belongs to Vishay's PAR® family of transient voltage suppressors, engineered specifically for automotive and industrial applications demanding AEC-Q101 compliance, 185 °C operation, and repeatable clamping stability under thermal stress.
FAQ
What is the AEC-Q101 qualification status of the TPSMA22AHE3_A/I?
The TPSMA22AHE3_A/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101-qualified variants. This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD robustness - making TPSMA22AHE3_A/I suitable for automotive powertrain and body electronics applications.
Does the TPSMA22AHE3_A/I have bidirectional or unidirectional polarity?
The TPSMA22AHE3_A/I is unidirectional only, as explicitly stated in the Vishay datasheet. Its electrical behavior mirrors a Zener diode in reverse breakdown and conducts only when cathode voltage exceeds anode voltage by ≥20.9 V - it does not provide symmetrical clamping for AC signals or bipolar transients.
What is the maximum clamping voltage of the TPSMA22AHE3_A/I at its rated peak pulse current?
The TPSMA22AHE3_A/I has a maximum clamping voltage (VC) of 30.6 V at its rated peak pulse current (IPPM) of 13.1 A, measured using the standard 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is critical for ensuring compatibility with downstream 36 V-rated ICs.
How does the TPSMA22AHE3_A/I perform at elevated junction temperatures?
The TPSMA22AHE3_A/I maintains specified performance up to TJ = +185 °C, with VBR exhibiting a positive temperature coefficient of +0.084 %/°C. At 150 °C, its breakdown voltage increases by ~10.5 % over room-temperature value - a predictable shift that allows accurate system-level margining in high-ambient environments.
Is the TPSMA22AHE3_A/I compatible with lead-free reflow processes?
Yes, the TPSMA22AHE3_A/I is fully compatible with lead-free reflow, meeting MSL Level 1 per J-STD-020 and supporting a maximum peak reflow temperature of 260 °C. Its matte tin-plated leads comply with J-STD-002 and JESD22-B102 solderability standards, and it passes JESD201 Class 2 whisker testing.
TPSMA22AHE3_A/I 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_A/I FAQ
1.How can I place an order for TPSMA22AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA22AHE3_A/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 TPSMA22AHE3_A/I reliable?
The price and inventory of TPSMA22AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA22AHE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMA22AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA22AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA22AHE3_A/I?
TPSMA22AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA22AHE3_A/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 TPSMA22AHE3_A/I?
For technical support, including TPSMA22AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA22AHE3_A/I requirements.
6.How does Aetrix verify that TPSMA22AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMA22AHE3_A/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 TPSMA22AHE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMA22AHE3_A/I?
All TPSMA22AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA22AHE3_A/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 TPSMA22AHE3_A/I part is unused and in its original packaging.
Return procedure for TPSMA22AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA22AHE3_A/I Tags
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