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Vishay General Semiconductor - Diodes Division TPSMB22HE3/5BT
- Part No.:
- TPSMB22HE3/5BT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB22HE3/5BT.pdf
- Description:
- TVS DIODE 17.8VWM 31.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,224
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Product details
Overview
TPSMB22HE3/5BT from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping inductive and lightning-induced transients on power and signal lines. It features 22 V breakdown voltage (VBR = 20.9–23.1 V at IT = 1 mA), 18.8 V stand-off voltage (VWM), 30.6 V clamping voltage (VC) at 19.6 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power rails.
For engineers reviewing the TPSMB22HE3/5BT datasheet, TPSMB22HE3/5BT pinout, TPSMB22HE3/5BT application, or TPSMB22HE3/5BT equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification (HE3 suffix), TJ = –65 °C to +185 °C operation, 75 A IFSM, and low incremental surge resistance for robust ESD/surge immunity in high-reliability embedded systems.
Technical Context
This TVS diode operates as a voltage-clamping protection device in parallel with sensitive circuit nodes, activating when reverse voltage exceeds VBR to shunt transient energy to ground. Its passivated anisotropic rectifier structure ensures stable breakdown behavior across temperature and lifetime.
It delivers fast response time (<1 ns), low clamping ratio (VC/VBR ≈ 1.39), and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak - enabling direct integration into automated SMT lines for automotive-grade assemblies without derating concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 20.9 / 22.0 / 23.1 V at IT = 1 mA - defines precise turn-on threshold for reliable overvoltage detection |
| VWM | 18.8 V - maximum continuous reverse operating voltage before leakage rises above 1 μA |
| VC @ IPPM | 30.6 V at 19.6 A - clamped voltage during 10/1000 µs surge, limiting stress on downstream components |
| PPPM | 600 W - peak transient power handling capability under standardized surge waveform |
| TJ max. | +185 °C - enables use in under-hood automotive environments and high-power industrial enclosures |
| Polarity | Unidirectional - protects against negative transients only; cathode band denotes terminal orientation |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, UL 94 V-0 molding compound, 0.220" × 0.130" footprint with cathode band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts during overvoltage to clamp voltage by diverting surge to ground |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane; completes clamping current loop |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Stable VBR drift < ±5 % over 1000 hrs HTOL at 150 °C, ensuring long-term clamping consistency |
| 600 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when properly laid out with low-inductance PCB traces |
| TJ = 185 °C capability | Enables placement near heat sources (e.g., power converters) without thermal derating penalties |
| MSL Level 1, 260 °C peak reflow | Eliminates moisture sensitivity concerns and pre-bake requirements in high-volume SMT manufacturing |
| HE3 suffix | Indicates RoHS-compliant, AEC-Q101 qualified variant with JESD 201 Class 2 whisker resistance |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump (ISO 7637-2 Pulse 5a) and alternator switching transients. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed between power rail and ground, activated within nanoseconds of overvoltage onset. Use Value: Limits rail voltage to ≤30.6 V during 19.6 A surges, preventing damage to 3.3 V/5 V microcontrollers and CAN transceivers. | Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Standby-mode protector that remains non-conductive until transient exceeds 18.8 V, then clamps within <1 ns. Use Value: Maintains signal integrity with <1 μA leakage at 18.8 V, while surviving repeated ±8 kV contact ESD per IEC 61000-4-2. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feed Protection |
Use Scenario: Safeguarding AC/DC adapter primary-side input rectifiers and controllers against lightning-induced surges on mains-connected inputs. IC Role / Device Role / Timing Role: Secondary-level TVS placed after fuse and MOV, providing fine-clamp backup protection for downstream SMPS ICs. Use Value: Adds 600 W surge margin beyond MOV clamping, reducing risk of controller latch-up during combined fast/slow transients. | Use Scenario: Protecting PoE-powered equipment (e.g., IP cameras) from induced surges on 48 V DC feed lines routed alongside data cables. IC Role / Device Role / Timing Role: Unidirectional clamping device connected between DC+ and ground, absorbing common-mode surges entering via Ethernet cabling. Use Value: Withstands 75 A non-repetitive forward surge (IFSM), enabling robustness against sustained overcurrent during fault conditions. |
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 SMB package, identical VBR range (20.9–23.1 V), but not AEC-Q101 qualified; lower TJ max. (150 °C) | Targeted at commercial/industrial use only; unsuitable for automotive under-hood deployment | Select TPSMB22HE3/5BT when AEC-Q101 compliance and +185 °C operation are mandatory |
| SMCJ22A | Larger SMC (DO-214AB) package; same electrical specs but higher PPPM (1500 W); 2.5× larger PCB footprint | Used where higher surge margin is required, e.g., outdoor telecom cabinets exposed to direct lightning coupling | Choose TPSMB22HE3/5BT for space-constrained automotive modules needing AEC-Q101 and SMB footprint |
Compared with SMBJ22A and SMCJ22A, the TPSMB22HE3/5BT uniquely combines AEC-Q101 qualification, +185 °C junction rating, and SMB footprint - making it the only option among the three for compact, high-temperature automotive power rail protection without layout redesign.
Availability
TPSMB22HE3/5BT is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC feed surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for TPSMB22HE3/5BT 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 reliability, high-temperature performance, and automotive qualification.
The TPSMB series belongs to Vishay's PAR® (Protection Against Transients) family, engineered specifically for high-reliability transient suppression in harsh environments - including automotive engine control units, industrial motor drives, and telecom infrastructure.
FAQ
What is the exact breakdown voltage range for TPSMB22HE3/5BT?
The TPSMB22HE3/5BT has a guaranteed breakdown voltage (VBR) range of 20.9 V to 23.1 V at test current IT = 1 mA, with nominal value 22.0 V. This range is verified per ANSI/IEEE C62.35 and confirmed in Vishay's official datasheet revision 23-Jan-2024 (Document Number: 88406). The TPSMB22HE3/5BT maintains this specification across its full operating temperature range.
Is TPSMB22HE3/5BT AEC-Q101 qualified?
Yes, the TPSMB22HE3/5BT is AEC-Q101 qualified. The "HE3" suffix explicitly denotes RoHS-compliant, AEC-Q101 qualified construction per Vishay's ordering nomenclature. Qualification includes HTGB, HTRB, and temperature cycling tests - confirming suitability for automotive applications such as body control modules and ADAS power supplies.
What is the clamping voltage of TPSMB22HE3/5BT at rated surge current?
The TPSMB22HE3/5BT exhibits a maximum clamping voltage (VC) of 30.6 V at peak pulse current (IPPM) = 19.6 A, measured using the standard 10/1000 µs waveform. This value is specified in the Electrical Characteristics table of the Vishay datasheet and directly determines the maximum voltage imposed on protected circuitry during surge events.
Does TPSMB22HE3/5BT support bidirectional transient suppression?
No, the TPSMB22HE3/5BT is unidirectional only. Its polarity is marked by a cathode band, and it conducts only when reverse-biased beyond VBR. For bidirectional protection, a separate device such as the TPSMB22CA (center-tapped, bidirectional variant) would be required - the TPSMB22HE3/5BT does not provide symmetrical clamping for positive and negative transients.
What is the maximum surge current rating for TPSMB22HE3/5BT?
The TPSMB22HE3/5BT supports a non-repetitive peak forward surge current (IFSM) of 75 A, measured on an 8.3 ms single half sine-wave per JEDEC standards. This rating applies to short-duration fault events like inrush or accidental shorts, and is distinct from the 10/1000 µs pulse current (19.6 A) used for transient immunity testing.
TPSMB22HE3/5BT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- 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):
- 18.8A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMB)
TPSMB22HE3/5BT FAQ
1.How can I place an order for TPSMB22HE3/5BT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB22HE3/5BT 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 TPSMB22HE3/5BT reliable?
The price and inventory of TPSMB22HE3/5BT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB22HE3/5BT is usually 5 days.
3.What payment methods are accepted for TPSMB22HE3/5BT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB22HE3/5BT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB22HE3/5BT?
TPSMB22HE3/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB22HE3/5BT 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 TPSMB22HE3/5BT?
For technical support, including TPSMB22HE3/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB22HE3/5BT requirements.
6.How does Aetrix verify that TPSMB22HE3/5BT is sourced from the original manufacturer or authorized distributors?
All TPSMB22HE3/5BT 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 TPSMB22HE3/5BT meets industry standards.
7.What is the process for return or replacement of TPSMB22HE3/5BT?
All TPSMB22HE3/5BT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB22HE3/5BT, 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 TPSMB22HE3/5BT part is unused and in its original packaging.
Return procedure for TPSMB22HE3/5BT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB22HE3/5BT Tags
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