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Vishay General Semiconductor - Diodes Division TPSMB36A802HE3/5BT
- Part No.:
- TPSMB36A802HE3/5BT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB36A802HE3/5BT.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,242
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Product details
Overview
TPSMB36A802HE3/5BT from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching transients and lightning-induced surges on power rails and signal lines. It features a 36 V breakdown voltage (VBR = 34.2–37.8 V at IT = 1 mA), 30.8 V stand-off voltage (VWM), 49.9 V maximum clamping voltage (VC) at 12 A peak pulse current, 600 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature. It is used in automotive power supply protection circuits per AEC-Q101 qualification.
For engineers reviewing the TPSMB36A802HE3/5BT datasheet, TPSMB36A802HE3/5BT pinout, TPSMB36A802HE3/5BT application, or TPSMB36A802HE3/5BT equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, 12 A IPPM rating, 30.8 V VWM hold-off, and AEC-Q101 qualification for under-hood automotive use.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with junction passivation optimized for high-temperature stability and reliability. Its clamping behavior is defined by a 10/1000 µs surge waveform, with thermal derating above 25 °C per Figure 2 and peak pulse power limited to 600 W under specified mounting conditions (0.2" × 0.2" copper pads).
The device exhibits low incremental surge resistance and fast response time, enabling effective suppression of fast-rising transients before downstream ICs or MOSFETs are damaged. Its cathode-band polarity marking and matte tin-plated terminals comply with J-STD-002 solderability and JESD 22-B102 whisker testing (Class 2).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 34.2 V / 36.0 V / 37.8 V at 1 mA - defines precise voltage threshold where avalanche conduction begins |
| VWM | 30.8 V - maximum continuous reverse voltage the device blocks without significant leakage |
| VC @ IPPM | 49.9 V at 12 A - clamped voltage seen by protected circuit during worst-case 10/1000 µs surge |
| PPPM | 600 W - peak transient energy absorption capability under standard 10/1000 µs waveform |
| IFSM | 75 A - maximum non-repetitive forward surge current (8.3 ms half-sine wave) |
| TJ max. | +185 °C - enables operation in high-temperature automotive engine compartments |
| Polarity | Unidirectional - protects against positive-going transients only; cathode band denotes terminal polarity |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, molded plastic case meeting UL 94 V-0 flammability rating. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); cathode marked by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode of internal avalanche diode structure | Connected to protected line; conducts when transient exceeds VBR, shunting current to ground |
| Anode (non-banded end) | Cathode of internal avalanche diode structure | Typically connected to system ground or low-impedance return path for surge current dissipation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
| Junction passivation | Reduces surface leakage and improves long-term stability under high-temperature/humidity stress |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow processes without moisture sensitivity concerns |
| Low incremental surge resistance | Minimizes VC overshoot during high-di/dt events, improving clamping precision |
| 185 °C TJ max. | Supports placement near heat sources (e.g., power converters, motor drivers) without derating |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 30.8 V. Use Value: Limits voltage to ≤49.9 V during 12 A transients, preventing damage to 36 V-rated DC-DC controllers and CAN transceivers. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS on differential or single-ended signal traces to suppress sub-100 ns transients. Use Value: Clamps fast transients while maintaining signal integrity due to fast response and minimal parasitic capacitance. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feed Protection |
Use Scenario: Safeguarding AC/DC adapter primary-side rectifiers and secondary-side regulators from mains-borne surges. IC Role / Device Role / Timing Role: Standoff-rated TVS across bulk capacitor inputs to absorb 600 W surges without failure. Use Value: Withstands repetitive 10/1000 µs pulses at 0.01% duty cycle, extending adapter lifetime in unstable grid environments. |
Use Scenario: Protecting PoE-powered equipment (e.g., IP cameras, wireless APs) from induced surges on 48 V DC feed lines. IC Role / Device Role / Timing Role: Unidirectional TVS on each DC pair to clamp common-mode transients before DC-DC isolation stage. Use Value: Ensures compliance with IEC 61000-4-5 Level 3 (1 kV/2 Ω) via 49.9 V clamping at 12 A, preserving data link integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A | Same VBR range (34.2–37.8 V), but lower PPPM = 400 W and smaller SMA package (DO-214AC); no AEC-Q101 qualification | Not suitable for automotive under-hood use; limited to consumer/industrial ambient-temp environments | Select when cost or board space is critical and AEC-Q101 is not required |
| TPSMB36AHM3_A | Identical electrical specs and AEC-Q101 qualification; differs only in halogen-free molding compound (HM3 suffix vs. HE3) | No functional difference; HM3 meets stricter material compliance (e.g., automotive OEM green material requirements) | Select when halogen-free compliance is mandated by end-customer specification |
Compared with SMAJ36A and TPSMB36AHM3_A, the TPSMB36A802HE3/5BT delivers full 600 W surge capability in an AEC-Q101-qualified SMB package, making it uniquely suited for high-energy automotive power rail protection where both reliability and robustness are mandatory.
Availability
TPSMB36A802HE3/5BT is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power feed circuits requiring stable component supply with guaranteed AEC-Q101 qualification and high-temperature operation.
Supply support for TPSMB36A802HE3/5BT 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® family of surface-mount TVS diodes, engineered specifically for high-energy transient suppression in harsh environments including automotive engine compartments and industrial power systems.
FAQ
What is the exact breakdown voltage range for TPSMB36A802HE3/5BT?
The TPSMB36A802HE3/5BT has a guaranteed breakdown voltage (VBR) range of 34.2 V to 37.8 V at 1 mA test current, measured per ANSI/IEEE C62.35. This range ensures consistent clamping onset across production lots and supports reliable overvoltage protection design margins in automotive and industrial applications where the TPSMB36A802HE3/5BT is deployed.
Is TPSMB36A802HE3/5BT AEC-Q101 qualified?
Yes, TPSMB36A802HE3/5BT is AEC-Q101 qualified. The HE3 suffix explicitly denotes RoHS-compliant and AEC-Q101-qualified construction, validated for automotive use including temperature cycling, mechanical shock, and humidity bias testing. This qualification makes the TPSMB36A802HE3/5BT suitable for under-hood and safety-critical vehicle subsystems.
What does the "802" in TPSMB36A802HE3/5BT signify?
The "802" in TPSMB36A802HE3/5BT is a revision or date code indicating manufacturing lot traceability and process version, per Vishay's internal coding convention. It does not affect electrical specifications or package dimensions - all TPSMB36A variants with HE3 suffix share identical VBR, VWM, VC, and thermal ratings. The TPSMB36A802HE3/5BT remains fully interchangeable with other TPSMB36AHE3 parts in design and assembly.
Can TPSMB36A802HE3/5BT be used in bidirectional configurations?
No, TPSMB36A802HE3/5BT is unidirectional only, as confirmed in the Vishay datasheet. It conducts only during positive transients relative to its cathode terminal. For bidirectional protection (e.g., AC lines or differential signals), a separate bidirectional TVS such as SMBJ36CA must be selected - the TPSMB36A802HE3/5BT cannot substitute without redesigning the protection topology.
What is the maximum clamping voltage of TPSMB36A802HE3/5BT at rated surge current?
The TPSMB36A802HE3/5BT has a maximum clamping voltage (VC) of 49.9 V at 12 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured with specified mounting conditions (0.2" × 0.2" copper pads) and defines the upper voltage limit imposed on protected circuitry during worst-case transient events, directly informing system-level overvoltage margin analysis for the TPSMB36A802HE3/5BT.
TPSMB36A802HE3/5BT 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):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 12A
- 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)
TPSMB36A802HE3/5BT FAQ
1.How can I place an order for TPSMB36A802HE3/5BT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB36A802HE3/5BT 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 TPSMB36A802HE3/5BT reliable?
The price and inventory of TPSMB36A802HE3/5BT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB36A802HE3/5BT is usually 5 days.
3.What payment methods are accepted for TPSMB36A802HE3/5BT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB36A802HE3/5BT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB36A802HE3/5BT?
TPSMB36A802HE3/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB36A802HE3/5BT 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 TPSMB36A802HE3/5BT?
For technical support, including TPSMB36A802HE3/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB36A802HE3/5BT requirements.
6.How does Aetrix verify that TPSMB36A802HE3/5BT is sourced from the original manufacturer or authorized distributors?
All TPSMB36A802HE3/5BT 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 TPSMB36A802HE3/5BT meets industry standards.
7.What is the process for return or replacement of TPSMB36A802HE3/5BT?
All TPSMB36A802HE3/5BT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB36A802HE3/5BT, 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 TPSMB36A802HE3/5BT part is unused and in its original packaging.
Return procedure for TPSMB36A802HE3/5BT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB36A802HE3/5BT Tags
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