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Vishay General Semiconductor - Diodes Division TPSMA22AHE3_A/H
- Part No.:
- TPSMA22AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA22AHE3_A/H.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,315
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Product details
Overview
TPSMA22AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching and lightning-induced transients on signal lines and power rails. It features a 22 V breakdown voltage (VBR = 20.9–23.1 V at 1 mA), 30.6 V maximum clamping voltage (VC) at 13.1 A peak pulse current, 400 W peak pulse power (10/1000 µs), 185 °C maximum junction temperature, and SMA (DO-214AC) package - used to protect automotive sensor interfaces and industrial I/O circuits.
For engineers reviewing the TPSMA22AHE3_A/H datasheet, TPSMA22AHE3_A/H pinout, TPSMA22AHE3_A/H application, or TPSMA22AHE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, TJ = 185 °C capability, 1.0 W steady-state power dissipation, and compliance with J-STD-020 MSL Level 1 reflow profile.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for high-temperature stability and low incremental surge resistance. Its clamping behavior is defined by a 10/1000 µs waveform with 0.01% duty cycle, and it delivers fast response time without triggering delay under transient conditions.
The device operates across -65 °C to +185 °C junction temperature range and maintains stable VBR with a temperature coefficient of +0.084 %/°C. It is rated for 40 A non-repetitive forward surge current (8.3 ms half-sine) and exhibits 3.5 V maximum forward voltage at 25 A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 20.9 V / 22.0 V / 23.1 V at 1.0 mA - defines precise voltage threshold where avalanche conduction begins under controlled test conditions |
| VWM | 18.8 V - maximum continuous reverse operating 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 event, directly limiting stress on downstream ICs |
| PPPM | 400 W (10/1000 µs) - peak transient energy absorption capacity per pulse, derated above 25 °C per Fig. 2 |
| TJ max. | +185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures without thermal shutdown |
| Polarity | Unidirectional - protects against positive transients only; cathode band denotes terminal orientation for correct PCB placement |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with 0.208" x 0.157" footprint and matte tin-plated leads |
Pinout & Package
SMA (DO-214AC) package with axial lead configuration: two terminals in a molded plastic body, cathode identified by a color band. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal per Vishay's recommended layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts avalanche current to ground during overvoltage events |
| Anode | Reference/ground return path | Typically tied to system ground plane; completes clamping loop with minimal inductance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD22 standards |
| Junction passivation | Reduces surface leakage and improves long-term stability under high humidity and bias stress |
| MSL Level 1 | Compatible with standard SMT reflow profiles up to 260 °C peak, eliminating bake requirements pre-assembly |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns rise time), enhancing protection margin |
| 185 °C TJ rating | Supports placement near heat-generating components (e.g., power MOSFETs, DC-DC converters) without derating |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses in engine control units. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between signal line and chassis ground to limit transient voltage below IC absolute maximum ratings. Use Value: With VC = 30.6 V at 13.1 A, TPSMA22AHE3_A/H ensures protected ICs see <31 V during 400 W surges - within typical 36 V automotive IC tolerance limits. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and motor drive noise in factory automation systems. IC Role / Device Role / Timing Role: Standoff device mounted at connector entry point to shunt inductive kickback before reaching isolation barrier or microcontroller GPIO. Use Value: 185 °C TJ rating allows direct placement on dense I/O boards near 24 V supply rails without thermal derating penalties. |
| Consumer Power Adapter Surge Suppression | Telecom Line Interface Protection |
|
Use Scenario: Secondary-side transient suppression in AC/DC adapters for USB-C PD and smart home hubs subjected to EN 61000-4-5 surge testing. IC Role / Device Role / Timing Role: Parallel-connected TVS across DC output to clamp 1 kV/0.5 kA combination wave surges before reaching DC-DC regulators. Use Value: 400 W peak pulse power and 1.0 µA leakage at 18.8 V enable low standby loss while meeting IEC 61000-4-5 Level 3 immunity. |
Use Scenario: Overvoltage protection on Ethernet PHY interface lines (e.g., MDI pairs) in VoIP gateways and base station backhaul equipment. IC Role / Device Role / Timing Role: Low-capacitance unidirectional suppressor placed differential-to-ground to avoid signal integrity degradation on 100BASE-TX lines. Use Value: SMA package footprint and 30.6 V clamping ensure compatibility with 24 V PoE midspan injectors while maintaining <1 pF junction capacitance at zero bias. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22AHE3_A/H | Same VBR range but SMB (DO-214AA) package; 600 W PPPM, higher IPPM (17.3 A), larger footprint (0.236" × 0.157") | Better suited for higher-energy transients; less space-constrained layouts | Select when board area permits larger package and higher surge margin is required beyond 400 W |
| TPSMA22AHM3_A/H | Identical electrical specs and SMA package; halogen-free molding compound, same RoHS/AEC-Q101 compliance | No functional difference; differs only in material composition for specific environmental compliance programs | Choose for halogen-free manufacturing requirements without altering circuit design or layout |
Compared with TPSMA22AHE3_A/H, SMBJ22AHE3_A/H offers higher surge robustness in a larger package, while TPSMA22AHM3_A/H provides identical performance with halogen-free construction - enabling direct substitution where material compliance drives selection.
Availability
TPSMA22AHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and consumer power adapter designs requiring stable component supply with AEC-Q101 qualification and high-temperature reliability.
Supply support for TPSMA22AHE3_A/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 high-reliability and automotive-grade solutions.
The TPSMA22AHE3_A/H belongs to Vishay's PAR® family of surface-mount TVS diodes engineered specifically for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure applications.
FAQ
What is the breakdown voltage tolerance for TPSMA22AHE3_A/H?
The TPSMA22AHE3_A/H has a specified breakdown voltage range of 20.9 V to 23.1 V at 1.0 mA test current, representing ±5% tolerance around the nominal 22 V rating. This tolerance is verified per ANSI/IEEE C62.35 and applies at 25 °C ambient; VBR shifts predictably with temperature using αT = +0.084 %/°C as documented in the datasheet.
Is TPSMA22AHE3_A/H suitable for bidirectional transient protection?
No, TPSMA22AHE3_A/H is unidirectional only, as confirmed in the "Features" section and electrical characteristics table. It protects against positive transients on the cathode side relative to anode. For bidirectional protection, a separate device such as the SMBJ22CAHE3_A/H or dual-series configuration would be required - TPSMA22AHE3_A/H must not be used in AC-coupled or symmetrical surge scenarios.
Does TPSMA22AHE3_A/H meet automotive qualification standards?
Yes, TPSMA22AHE3_A/H is AEC-Q101 qualified, as explicitly stated in the "Features" section and ordering information. The HE3 suffix denotes RoHS-compliant and AEC-Q101 qualified construction, validated for temperature cycling, high-temperature reverse bias, and mechanical shock per the AEC-Q101 stress test standard.
What is the maximum clamping voltage of TPSMA22AHE3_A/H under surge conditions?
The maximum clamping voltage (VC) of TPSMA22AHE3_A/H is 30.6 V at 13.1 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per Figure 1 and Table 1 in the datasheet and represents the upper bound of voltage seen by protected circuitry during a 400 W transient event.
Can TPSMA22AHE3_A/H be used in reflow soldering processes without special handling?
Yes, TPSMA22AHE3_A/H meets J-STD-020 MSL Level 1 with a maximum peak reflow temperature of 260 °C, meaning it can undergo standard lead-free reflow profiles without baking or moisture sensitivity precautions. The device uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 for reliable solder joint formation.
TPSMA22AHE3_A/H 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/H FAQ
1.How can I place an order for TPSMA22AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA22AHE3_A/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 TPSMA22AHE3_A/H reliable?
The price and inventory of TPSMA22AHE3_A/H 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/H is usually 5 days.
3.What payment methods are accepted for TPSMA22AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA22AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA22AHE3_A/H?
TPSMA22AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA22AHE3_A/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 TPSMA22AHE3_A/H?
For technical support, including TPSMA22AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA22AHE3_A/H requirements.
6.How does Aetrix verify that TPSMA22AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMA22AHE3_A/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 TPSMA22AHE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMA22AHE3_A/H?
All TPSMA22AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA22AHE3_A/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 TPSMA22AHE3_A/H part is unused and in its original packaging.
Return procedure for TPSMA22AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA22AHE3_A/H Tags
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