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Vishay General Semiconductor - Diodes Division TPSMC22HE3/57T
- Part No.:
- TPSMC22HE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC22HE3/57T.pdf
- Description:
- TVS DIODE 17.8VWM 31.9VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,351
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Product details
Overview
TPSMC22HE3/57T from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 22.0 V nominal breakdown voltage (VBR), 18.8 V stand-off voltage (VWM), and 185 °C maximum junction temperature - deployed for clamping inductive switching transients on automotive power rails and sensor signal lines.
For engineers reviewing the TPSMC22HE3/57T datasheet, TPSMC22HE3/57T pinout, TPSMC22HE3/57T application, or TPSMC22HE3/57T equivalent, key selection criteria include its AEC-Q101 qualification, 30.6 V clamping voltage at 49.0 A peak surge current, unidirectional polarity, MSL Level 1 rating, and RoHS-compliant matte tin-plated terminals.
Technical Context
This TVS diode operates as a voltage-clamping protection device triggered by reverse-biased avalanche breakdown above VWM; it delivers fast response time (<1 ns) and low incremental surge resistance to limit transient overvoltage across sensitive downstream ICs. Its passivated anisotropic rectifier structure ensures stable performance under high-temperature stress.
The device is designed for single-pulse transient suppression per IEC 61000-4-5 (10/1000 μs waveform), with derating applied above 25 °C ambient per Fig. 2 of the datasheet. It supports mounting on 8.0 mm × 8.0 mm copper pads and meets JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 22.0 V - precise avalanche initiation voltage at 1 mA test current, defining clamping threshold onset |
| VWM | 18.8 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 30.6 V - clamped voltage at 49.0 A peak pulse current, directly limiting downstream voltage stress |
| PPPM | 1500 W - peak pulse power handling capability under standardized 10/1000 μs waveform |
| TJ max. | +185 °C - extended junction temperature rating enabling use in under-hood automotive environments |
| Polarity | Unidirectional - protects against positive transients only; requires correct cathode orientation in circuit |
| MSL Level | Level 1 (J-STD-020) - no floor life limitation; safe for reflow up to 260 °C peak |
Pinout & Package
Package: SMC (DO-214AB) - surface-mount plastic case with cathode band marking, 8.13 mm × 6.22 mm × 2.62 mm footprint, UL 94 V-0 rated molding compound, matte tin-plated leads solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction; grounded or connected to low-impedance return path in protection configuration | Provides low-VF (3.5 V @ 100 A) path during surge events when device conducts in forward direction |
| Cathode | Protected line connection point; marked by color band | Reverse-biased terminal where transient voltage appears; avalanche breakdown occurs here to clamp voltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| Junction passivation | Optimized anisotropic rectifier process reduces parameter drift and leakage under thermal stress |
| 1500 W peak pulse power | Enables robust protection against ISO 7637-2 Pulse 1/2a/5a transients without derating in typical PCB layouts |
| Low clamping ratio (VC/VBR = 1.39) | Minimizes overvoltage margin between clamping and protected IC's absolute maximum rating |
| MSL Level 1 & JESD201 Class 2 | Eliminates bake requirements and whisker risk in automated SMT assembly for high-volume production |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Suppressing load-dump and inductive kickback transients on 12 V/24 V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed between power rail and ground, activated within nanoseconds upon overvoltage detection. Use Value: Limits rail voltage to ≤30.6 V during 49 A surges, preventing damage to MCU power inputs and CAN transceivers. | Use Scenario: Protecting analog outputs and digital I/O of pressure, temperature, and position sensors in factory automation systems. IC Role / Device Role / Timing Role: Unidirectional shunt protector on signal line-to-ground, absorbing ESD and switching noise. Use Value: Maintains signal integrity with <1 μA leakage at 18.8 V, while clamping fast transients before they reach ADC front-end or microcontroller pins. |
| Consumer Power Adapter Input Stage | Telecom DC Power Interface |
Use Scenario: Safeguarding AC-DC adapter primary-side controllers and secondary-side regulation circuits from line surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on DC output rail, conducting only during overvoltage events exceeding 18.8 V. Use Value: Withstands repeated 1500 W pulses without degradation, ensuring long-term reliability in wall-wart and USB-PD adapters. | Use Scenario: Guarding -48 V DC telecom power feeds against lightning-induced surges and hot-swap transients. IC Role / Device Role / Timing Role: High-energy clamping device mounted at board edge, diverting surge current to chassis ground. Use Value: Delivers 30.6 V clamping at 49 A with 185 °C TJ rating, compatible with telecom thermal management and IPC-9592 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 (22 V), SMA package (smaller thermal mass) | Not suitable for automotive load-dump; limited to lower-energy ESD/lightning events | Select TPSMC22HE3/57T when >1000 W surge immunity is required or AEC-Q101 compliance is mandatory |
| 1.5KE22A | Higher VC (35.5 V), through-hole DO-201 package, 1500 W rating but slower response due to higher parasitic inductance | Requires PCB real estate and wave soldering; not SMT-compatible or MSL-1 compliant | Choose TPSMC22HE3/57T for space-constrained SMT designs needing automotive qualification and faster clamping |
Compared with SMAJ22A and 1.5KE22A, TPSMC22HE3/57T provides superior thermal robustness (185 °C TJ), surface-mount compatibility with zero lead-free reflow restrictions, and tighter clamping (30.6 V vs. ≥35.5 V), making it optimal for high-reliability automotive and industrial power-line protection.
Availability
TPSMC22HE3/57T is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power systems requiring stable component supply, AEC-Q101 compliance, and high-temperature operational continuity.
Supply support for TPSMC22HE3/57T 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, MOSFETs, and protection devices with emphasis on reliability, thermal performance, and automotive qualification.
The TPSMC series belongs to Vishay's PAR® (Protection Against Transients) family, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications demanding AEC-Q101 validation and 185 °C operation.
FAQ
What is the clamping voltage of the TPSMC22HE3/57T at its rated peak pulse current?
The TPSMC22HE3/57T has a maximum clamping voltage (VC) of 30.6 V at its specified peak pulse current (IPPM) of 49.0 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 confirmed in the Electrical Characteristics table of Vishay document 88407. The TPSMC22HE3/57T maintains this clamping performance across its full operating temperature range.
Is the TPSMC22HE3/57T qualified for automotive applications?
Yes, the TPSMC22HE3/57T is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet (document 88407, page 1). The HE3 suffix denotes RoHS-compliant and AEC-Q101 qualified construction. This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and mechanical shock - validating the TPSMC22HE3/57T for under-hood and powertrain applications where reliability at 185 °C junction temperature is required.
What does the "HE3/57T" suffix indicate in TPSMC22HE3/57T?
The "HE3" portion indicates RoHS-compliant, AEC-Q101 qualified construction with matte tin-plated leads meeting JESD201 Class 2 whisker resistance. The "57T" denotes tape-and-reel packaging in 13-inch reels (3500 units per reel), per Vishay's ordering convention. This full suffix confirms that the TPSMC22HE3/57T is supplied in industry-standard SMT format with full automotive-grade traceability and assembly compatibility.
Can the TPSMC22HE3/57T be used in bidirectional configurations?
No, the TPSMC22HE3/57T is unidirectional only, as clearly specified in the Features section of the datasheet. It protects against positive transients on the cathode side relative to anode and must be oriented accordingly in-circuit. For bidirectional protection, two TPSMC22HE3/57T devices would need back-to-back connection, or a dedicated bidirectional TVS such as the SMBJ22CA should be selected instead.
What is the maximum reverse leakage current of the TPSMC22HE3/57T at its stand-off voltage?
At 25 °C, the TPSMC22HE3/57T exhibits a maximum reverse leakage current (IR) of 1.0 μA when biased at its stand-off voltage (VWM) of 18.8 V. At elevated temperature (TJ = 150 °C), leakage increases to 10 μA under the same VWM, as documented in the Electrical Characteristics table. This low leakage ensures minimal power loss and signal interference in always-on automotive and industrial monitoring circuits using the TPSMC22HE3/57T.
TPSMC22HE3/57T 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)
TPSMC22HE3/57T FAQ
1.How can I place an order for TPSMC22HE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC22HE3/57T 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 TPSMC22HE3/57T reliable?
The price and inventory of TPSMC22HE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC22HE3/57T is usually 5 days.
3.What payment methods are accepted for TPSMC22HE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC22HE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC22HE3/57T?
TPSMC22HE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC22HE3/57T 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 TPSMC22HE3/57T?
For technical support, including TPSMC22HE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC22HE3/57T requirements.
6.How does Aetrix verify that TPSMC22HE3/57T is sourced from the original manufacturer or authorized distributors?
All TPSMC22HE3/57T 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 TPSMC22HE3/57T meets industry standards.
7.What is the process for return or replacement of TPSMC22HE3/57T?
All TPSMC22HE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC22HE3/57T, 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 TPSMC22HE3/57T part is unused and in its original packaging.
Return procedure for TPSMC22HE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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