My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMC22HE3_A/I
- Part No.:
- TPSMC22HE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC22HE3_A/I.pdf
- Description:
- TVS DIODE 17.8VWM 31.9VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,699
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMC22HE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping fast-rising voltage transients on power and signal lines. It features 22 V breakdown voltage (VBR = 20.9–23.1 V at 1 mA), 18.8 V stand-off voltage (VWM), 30.6 V maximum clamping voltage (VC) at 49.0 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - ideal for automotive power rail protection.
For engineers reviewing the TPSMC22HE3_A/I datasheet, TPSMC22HE3_A/I pinout, TPSMC22HE3_A/I application, or TPSMC22HE3_A/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, MSL Level 1 rating, 1000 µA max reverse leakage at VWM, and compatibility with high-reliability automotive and industrial PCB layouts requiring robust ESD/surge immunity without derating at elevated ambient temperatures.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve stable breakdown characteristics across temperature and lifetime. Its 185 °C maximum junction temperature and AEC-Q101 qualification confirm suitability for under-hood automotive applications where thermal stress and long-term reliability are critical.
The device delivers 1500 W peak pulse power handling with low incremental surge resistance and sub-nanosecond response time, enabling effective suppression of inductive switching spikes and lightning-induced surges on 12 V/24 V systems. Clamping occurs at 30.6 V under 49.0 A (10/1000 µs), limiting downstream voltage stress while maintaining low leakage (<1 µA at 25 °C).
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 at which clamping initiates under transient conditions |
| VWM | 18.8 V - maximum continuous working voltage before leakage exceeds 1 µA; sets safe operating margin below breakdown |
| VC @ IPPM | 30.6 V at 49.0 A (10/1000 µs) - actual clamped voltage seen by protected circuit during worst-case surge event |
| PPPM | 1500 W - peak transient energy absorption capability without failure, validated per IEC 61000-4-5 level 4 |
| TJ max. | +185 °C - enables operation in high-temperature environments such as engine control units and DC-DC converters |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct cathode orientation in series with protected line |
| MSL Rating | Level 1 (J-STD-020) - supports standard reflow profiles up to 260 °C peak without moisture-induced damage |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic case meeting UL 94 V-0 flammability rating. Cathode indicated by color band. Matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or low-impedance reference; completes clamping loop during overvoltage events |
| Cathode | Protected line connection point | Connected to input/power/signal line being safeguarded; reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance per JEDEC standards |
| 1500 W peak pulse power | Withstands repeated 10/1000 µs surges up to 49.0 A without parametric shift or catastrophic failure |
| 185 °C junction rating | Enables placement near heat sources (e.g., power MOSFETs, inductors) without thermal derating penalties |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage stress on downstream ICs compared to higher-ratio TVS devices |
| MSL Level 1 | Eliminates pre-bake requirement prior to SMT assembly, reducing manufacturing cost and cycle time |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between power input and ground to shunt surge energy away from LDOs and microcontrollers. Use Value: Maintains VC ≤ 30.6 V during 49 A surges, preventing latch-up or gate oxide damage in downstream 3.3 V/5 V logic. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to ADC inputs in factory automation PLCs. IC Role / Device Role / Timing Role: Low-leakage TVS mounted directly at connector entry to absorb ESD and cable discharge events before reaching precision front-end circuitry. Use Value: 1 µA max reverse leakage at 18.8 V ensures no measurable offset error in mV-level sensor signals under normal bias. |
| Telecom DC Power Input Protection | Consumer Power Adapter Output Clamping |
|
Use Scenario: Securing -48 V telecom rectifier outputs against induced surges from nearby lightning strikes or relay switching. IC Role / Device Role / Timing Role: High-power TVS placed after bulk filter capacitor to clamp residual transients before distributed DC-DC conversion stages. Use Value: 1500 W rating handles multi-kV surge waveforms per IEC 61000-4-5, ensuring system-level compliance without additional staged protection. |
Use Scenario: Preventing overvoltage damage to USB-C PD controllers and Type-C port electronics during adapter plug/unplug events. IC Role / Device Role / Timing Role: Fast-response TVS integrated into secondary-side output stage to clamp overshoot caused by transformer leakage inductance. Use Value: Sub-ns response time limits transient duration, reducing risk of false triggering or brownout in host-side power management ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A | Lower PPPM (400 W), SMA package (smaller footprint), VC = 35.5 V at 11.3 A | Not AEC-Q101 qualified; limited to consumer/industrial use below 150 °C ambient | Select when board space is constrained and surge energy is <500 W; verify thermal relief on 0.05" pads |
| TPSMC22AHM3_A/I | Halogen-free variant; identical electrical specs and AEC-Q101 qualification; same SMC package and pinout | Required for RoHS-compliant, halogen-free BOMs in automotive OEM programs | Direct material substitution where halogen-free compliance is mandated; no layout or validation changes needed |
Compared with SMAJ22A and TPSMC22AHM3_A/I, the TPSMC22HE3_A/I offers superior surge handling (1500 W vs. 400 W) and full automotive qualification, while sharing identical clamping performance and thermal capability with its halogen-free sibling - making it the preferred choice for high-energy, mission-critical protection where reliability and regulatory compliance are non-negotiable.
Availability
TPSMC22HE3_A/I is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface, and telecom DC input protection requiring stable component supply, AEC-Q101 traceability, and extended temperature operation.
Supply support for TPSMC22HE3_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, rectifiers, TVS devices, and optoelectronics with emphasis on high-reliability, high-temperature, and automotive-grade performance.
The TPSMC series was developed specifically for demanding automotive and industrial applications requiring robust transient suppression, extended junction temperature operation, and AEC-Q101 qualification - targeting power rail, sensor, and communication interface protection.
FAQ
What is the exact breakdown voltage range for TPSMC22HE3_A/I?
The TPSMC22HE3_A/I has a guaranteed breakdown voltage (VBR) range of 20.9 V to 23.1 V at 1 mA test current, measured per ANSI/IEEE C62.35. This tight tolerance ensures predictable clamping onset across production lots and temperature extremes, supporting consistent design margins in safety-critical automotive circuits.
Is TPSMC22HE3_A/I AEC-Q101 qualified?
Yes, TPSMC22HE3_A/I is fully AEC-Q101 qualified. The HE3 suffix explicitly denotes RoHS-compliant and AEC-Q101-qualified versions per Vishay's ordering nomenclature. Qualification includes stress testing for temperature cycling, high-temperature reverse bias, and surge endurance - confirming suitability for automotive under-hood applications.
What does the "_A/I" suffix mean in TPSMC22HE3_A/I?
The "_A/I" suffix in TPSMC22HE3_A/I indicates revision code "A" and packaging in 13-inch diameter plastic tape and reel (3500 units per reel). Per Vishay's ordering information, "I" denotes the larger reel size, while "A" reflects the current revision level of the die and process - both documented in datasheet revision 19-Jan-2024.
Can TPSMC22HE3_A/I be used in bidirectional configurations?
No, TPSMC22HE3_A/I is unidirectional only, as confirmed in the Features section of the datasheet. It protects against positive transients on the cathode side relative to anode. For bidirectional protection, two devices must be connected in series opposition or a dedicated bidirectional TVS (e.g., TPSMC22CA) must be selected.
What is the maximum clamping voltage of TPSMC22HE3_A/I under surge conditions?
The maximum clamping voltage (VC) of TPSMC22HE3_A/I is 30.6 V at 49.0 A peak pulse current with a 10/1000 µs waveform. This value is measured per standardized test conditions and represents the highest voltage imposed on the protected circuit during worst-case surge events - critical for validating downstream IC voltage tolerances.
TPSMC22HE3_A/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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 17.8V
- Voltage - Breakdown (Min):
- 19.8V
- Voltage - Clamping (Max) @ Ipp:
- 31.9V
- Current - Peak Pulse (10/1000µs):
- 47A
- 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)
TPSMC22HE3_A/I FAQ
1.How can I place an order for TPSMC22HE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC22HE3_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 TPSMC22HE3_A/I reliable?
The price and inventory of TPSMC22HE3_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 TPSMC22HE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMC22HE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC22HE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC22HE3_A/I?
TPSMC22HE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC22HE3_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 TPSMC22HE3_A/I?
For technical support, including TPSMC22HE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC22HE3_A/I requirements.
6.How does Aetrix verify that TPSMC22HE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMC22HE3_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 TPSMC22HE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMC22HE3_A/I?
All TPSMC22HE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC22HE3_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 TPSMC22HE3_A/I part is unused and in its original packaging.
Return procedure for TPSMC22HE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC22HE3_A/I Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
