My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMB22HE3/52T
- Part No.:
- TPSMB22HE3/52T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB22HE3/52T.pdf
- Description:
- TVS DIODE 17.8VWM 31.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,857
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMB22HE3/52T from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching surges and lightning-induced transients on power rails and signal lines. It features a 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, 600 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 TPSMB22HE3/52T datasheet, TPSMB22HE3/52T pinout, TPSMB22HE3/52T application, or TPSMB22HE3/52T equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, TJ = 185 °C thermal rating, and clamping performance under repetitive 10/1000 μs surge conditions.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable breakdown behavior across temperature and high reliability under automotive-grade stress conditions. Its unidirectional configuration enables forward-biased operation during overvoltage events while maintaining low leakage (<1 μA at VWM) and fast response time (<1 ns).
The device is rated for 75 A non-repetitive forward surge current (8.3 ms half-sine), exhibits low incremental surge resistance, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. The cathode band marking and matte tin-plated terminals ensure consistent PCB assembly and solderability per J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 20.9 / 22.0 / 23.1 V at 1 mA - defines precise clamping onset threshold for overvoltage detection |
| VWM | 18.8 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 30.6 V at 19.6 A - limits downstream voltage during 10/1000 μs surge to protect 24 V system ICs |
| PPPM | 600 W - sustains standardized transient energy without failure under repetitive duty cycle ≤ 0.01 % |
| TJ max. | +185 °C - supports under-hood automotive placement and high-temperature industrial environments |
| Polarity | Unidirectional - blocks reverse conduction; conducts only during positive overvoltage on anode side |
| Package | SMB (DO-214AA) - industry-standard 2-pin SMD outline with 5.0 mm × 5.0 mm copper pad requirement |
Pinout & Package
TPSMB22HE3/52T is housed in the SMB (DO-214AA) surface-mount package: molded epoxy case meeting UL 94 V-0, matte tin-plated leads, cathode identified by a color band. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for thermal and surge current handling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge current entry point during positive overvoltage | Connected to protected line (e.g., 24 V rail); conducts when voltage exceeds VWM |
| Cathode | Surge current return path to ground or reference | Connected to system ground; establishes unidirectional clamping direction and polarity |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress test requirements including HTGB, HTRB, and temperature cycling |
| Junction passivation | Stabilizes VBR drift across temperature and lifetime; enables ±0.084 %/°C tempco for predictable clamping |
| Low clamping ratio (VC/VBR) | 1.39 - minimizes overvoltage margin between breakdown and clamping, enhancing protection headroom |
| MSL Level 1 | Zero floor life limitation; supports standard reflow without baking or dry pack handling |
| 75 A IFSM | Withstands 8.3 ms half-sine surge common in motor driver and relay coil suppression applications |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs against load dump and alternator transients in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp surges above 30.6 V within nanoseconds. Use Value: Prevents damage to downstream DC/DC converters and microcontrollers by limiting peak voltage to 30.6 V at 19.6 A. | Use Scenario: Shielding analog outputs of pressure/temperature sensors from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: Low-leakage (≤1 μA) TVS connected across signal and ground to absorb sub-100 ns ESD pulses without loading the sensor output. Use Value: Maintains signal integrity with <1 μA leakage at 18.8 V and clamps 8 kV contact ESD to <30.6 V at the sensor node. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Surge Suppression |
Use Scenario: Safeguarding PoE-powered network switches against induced surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Primary clamping device on main DC bus, coordinated with upstream fuse and filter inductors. Use Value: Handles 600 W peak pulse energy (10/1000 μs) without degradation, supporting telecom-grade surge immunity standards. | Use Scenario: Suppressing back-EMF spikes from brushed DC motors in home appliances like washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Mounted across motor terminals to divert inductive kickback into ground path during MOSFET turn-off. Use Value: Withstands 75 A 8.3 ms surge current and operates reliably at +185 °C near motor windings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A | Same SMB package, identical VBR range (20.9–23.1 V), but rated for 600 W with 10/1000 μs waveform and not AEC-Q101 qualified | Used in commercial/industrial systems where automotive qualification is not required | Select SMBJ22A for cost-sensitive non-automotive designs needing same electrical specs without qualification overhead |
| TPSMB22AHM3/52T | Identical electrical and thermal specs; differs only in halogen-free molding compound and whisker-tested terminations | Required for RoHS-compliant, halogen-free BOMs in EU automotive programs | Choose TPSMB22AHM3/52T when material compliance (halogen-free + RoHS + AEC-Q101) is mandated by OEM specification |
Compared with TPSMB22HE3/52T, SMBJ22A offers identical clamping and surge capability but lacks automotive qualification, while TPSMB22AHM3/52T provides full material compliance parity - enabling direct substitution where halogen-free content is required without changing layout or thermal design.
Availability
TPSMB22HE3/52T is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface clamping, and telecom DC input surge suppression requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for TPSMB22HE3/52T 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 performance.
The TPSMB series was developed specifically for high-temperature, high-reliability transient suppression in automotive and industrial power systems - delivering AEC-Q101 qualification, 185 °C operation, and robust 600 W surge handling in the SMB footprint.
FAQ
What is the breakdown voltage tolerance of the TPSMB22HE3/52T?
The TPSMB22HE3/52T has a specified breakdown voltage range of 20.9 V to 23.1 V at 1 mA test current, corresponding to ±5 % tolerance around the nominal 22 V rating. This tight VBR window ensures consistent clamping onset across production lots and supports reliable overvoltage detection in safety-critical 24 V systems where TPSMB22HE3/52T is deployed.
Is the TPSMB22HE3/52T suitable for bidirectional transient protection?
No, the TPSMB22HE3/52T is unidirectional only - it clamps positive overvoltages relative to ground and blocks reverse conduction. For bidirectional protection, a separate symmetric TVS or dual-diode configuration would be required. The TPSMB22HE3/52T datasheet explicitly states "Available in unidirectional polarity only", confirming its single-quadrant operation.
Does the TPSMB22HE3/52T require derating at elevated ambient temperatures?
Yes, the TPSMB22HE3/52T must be derated above 25 °C ambient per Figure 2 in the Vishay datasheet (Document Number: 88406). Peak pulse power decreases linearly with rising junction temperature, reaching ~50 % of 600 W at ~125 °C ambient (with proper PCB copper area). Thermal design using 0.2" × 0.2" pads is essential to maintain TPSMB22HE3/52T within its +185 °C maximum junction limit.
What does the "HE3" suffix indicate in TPSMB22HE3/52T?
The "HE3" suffix denotes RoHS-compliant construction and AEC-Q101 qualification per Vishay's ordering nomenclature. Specifically, HE3 indicates matte tin-plated leads, JESD 201 Class 2 whisker resistance, and full automotive qualification - distinguishing TPSMB22HE3/52T from non-qualified variants like TPSMB22A. The "/52T" denotes tape-and-reel packaging (13" reel, 3200 pcs).
How does the clamping voltage of TPSMB22HE3/52T compare to its breakdown voltage?
The TPSMB22HE3/52T clamps at 30.6 V when subjected to its rated 19.6 A peak pulse current (10/1000 μs), yielding a clamping ratio (VC/VBR) of ~1.39. This means the protected circuit sees no more than 30.6 V during surge events - a critical margin above the 22 V nominal breakdown and well below typical 36 V absolute maximum ratings of downstream 24 V system ICs.
TPSMB22HE3/52T 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)
TPSMB22HE3/52T FAQ
1.How can I place an order for TPSMB22HE3/52T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB22HE3/52T 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 TPSMB22HE3/52T reliable?
The price and inventory of TPSMB22HE3/52T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB22HE3/52T is usually 5 days.
3.What payment methods are accepted for TPSMB22HE3/52T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB22HE3/52T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB22HE3/52T?
TPSMB22HE3/52T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB22HE3/52T 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 TPSMB22HE3/52T?
For technical support, including TPSMB22HE3/52T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB22HE3/52T requirements.
6.How does Aetrix verify that TPSMB22HE3/52T is sourced from the original manufacturer or authorized distributors?
All TPSMB22HE3/52T 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 TPSMB22HE3/52T meets industry standards.
7.What is the process for return or replacement of TPSMB22HE3/52T?
All TPSMB22HE3/52T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB22HE3/52T, 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 TPSMB22HE3/52T part is unused and in its original packaging.
Return procedure for TPSMB22HE3/52T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB22HE3/52T 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 …
