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Vishay General Semiconductor - Diodes Division TPSMP33HM3/84A
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- Part No.:
- TPSMP33HM3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP33HM3/84A.pdf
- Description:
- TVS DIODE 26.8VWM 47.7VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,483
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Product details
Overview
TPSMP33HM3/84A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, designed for high-reliability automotive and industrial surge protection. It features 33 V breakdown voltage (VBR min/max = 29.7 V / 36.3 V), 47.7 V clamping voltage at 8.4 A peak pulse current, 400 W peak pulse power rating, and AEC-Q101 qualification for under-hood electronics.
For engineers reviewing the TPSMP33HM3/84A datasheet, TPSMP33HM3/84A pinout, TPSMP33HM3/84A application, or TPSMP33HM3/84A equivalent, key selection criteria include unidirectional polarity, 185 °C junction temperature capability, low-profile 1.0 mm height, MSL Level 1 reflow compatibility, and 36.8 V stand-off voltage for 12 V/24 V system rail protection.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver fast response time (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD, lightning-induced transients, and load-dump events. Its unidirectional configuration provides forward conduction path during overvoltage while maintaining low leakage (<1 μA at VWM) at 25 °C and <5 μA at 150 °C.
The device operates across -65 °C to +185 °C junction temperature range and is rated for 40 A non-repetitive forward surge current (IFSM). Thermal derating follows a defined curve up to 175 °C ambient, supporting placement near high-power components without thermal runaway risk.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 29.7 V / 36.3 V - Ensures reliable triggering above 24 V nominal rail with margin against tolerance drift |
| VWM | 26.8 V - Maximum continuous reverse operating voltage before leakage rises significantly |
| VC @ IPPM | 47.7 V at 8.4 A - Clamped voltage limits downstream IC stress during 10/1000 µs transients |
| PPPM | 400 W - Sustains high-energy surges common in automotive load-dump and ISO 7637-2 tests |
| TJ max | +185 °C - Enables under-hood deployment without derating in engine control units and ADAS modules |
| IR @ VWM | <1 μA at 25 °C - Minimizes standby power loss in always-on vehicle networks |
| Package | DO-220AA (SMP) - 1.0 mm typical height supports ultra-thin PCB designs and automated SMT placement |
Pinout & Package
TPSMP33HM3/84A is a two-terminal unidirectional TVS diode in DO-220AA (SMP) surface-mount package. Cathode is marked by a color band on the body; anode is unmarked end. The package measures 3.61 mm × 1.88 mm × 1.0 mm (L × W × H) with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point during clamping | Connected to protected line (e.g., CAN_H or LIN bus); conducts when transient exceeds VBR |
| Cathode | Reverse-biased terminal; marked with band | Connected to ground or lower-potential rail; defines unidirectional clamping direction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per JESD22 |
| Junction passivation | Reduces surface leakage and improves long-term stability in humid or contaminated environments |
| MSL Level 1 | Supports lead-free reflow up to 260 °C peak without preconditioning or baking |
| Low profile (1.0 mm height) | Enables routing under connectors and tight spacing in ADAS camera modules and infotainment head units |
| Halogen-free & RoHS-compliant | Meets automotive material compliance requirements per Vishay Doc. #99912 and EU Directive 2011/65/EU |
Applications
| Automotive Power Line Protection | CAN Bus Transient Suppression |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails in engine control units (ECUs) against load-dump transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and DC-DC converter input stage. Use Value: Clamps to 47.7 V within nanoseconds, limiting stress on downstream regulators and preventing latch-up or burnout. | Use Scenario: Safeguarding high-speed CAN FD transceivers (e.g., TCAN1042) from ESD and coupled noise on differential bus lines. IC Role / Device Role / Timing Role: Paired devices (one per line) referenced to chassis ground, with low capacitance preserving signal integrity. Use Value: Sub-1 ns response ensures clamping occurs before transceiver input stages are damaged during ±8 kV contact ESD events. |
| Industrial Sensor Interface Protection | Consumer Appliance Motor Drive Inputs |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC I/O modules from inductive switching noise. IC Role / Device Role / Timing Role: Placed at connector entry point before signal conditioning op-amps and ADC front-ends. Use Value: 1.0 μA leakage at 26.8 V prevents DC offset errors in precision 24-bit measurement systems. | Use Scenario: Guarding microcontroller GPIOs and gate drivers in smart home appliance motor controllers against back-EMF spikes. IC Role / Device Role / Timing Role: Mounted directly at motor driver IC supply pins to absorb commutation energy. Use Value: 400 W peak power rating handles repetitive 100 ms inductive kickback without degradation over 100k+ cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A-E3/57T | DO-214AC (SMA) package; 33 V VBR; 600 W PPPM; higher 1.8 mm profile | Less suitable for space-constrained automotive modules; same clamping performance but larger footprint | Select when board area allows larger package and higher surge margin is prioritized over height |
| TPSMP33A | Same DO-220AA package; tighter 5 % VBR tolerance (31.4–34.7 V); identical thermal and electrical specs | Preferred where precise threshold matching is required across production batches (e.g., safety-critical ADAS sensors) | Choose TPSMP33A if ±5 % VBR tolerance is mandated by system-level fault detection logic |
Compared with SMAJ33A-E3/57T, TPSMP33HM3/84A offers 40 % lower profile and smaller PCB footprint, critical for modern compact ECUs; versus TPSMP33A, it trades tighter VBR tolerance for broader availability and cost efficiency in non-safety-critical 12 V rail protection.
Availability
TPSMP33HM3/84A is available at Aetrix Electronics and suitable for automotive power rail protection, CAN bus interface hardening, and industrial sensor signal line safeguarding requiring stable component supply across multi-year production programs.
Supply support for TPSMP33HM3/84A 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive qualification.
The TPSMP series belongs to Vishay's eSMP® family of high-power-density TVS diodes, engineered specifically for AEC-Q101-compliant transient suppression in harsh automotive and industrial environments.
FAQ
What is the maximum clamping voltage of the TPSMP33HM3/84A under standard test conditions?
The TPSMP33HM3/84A has a maximum clamping voltage (VC) of 47.7 V when subjected to an 8.4 A peak pulse current with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for downstream ICs. The clamping performance remains stable across its full operating temperature range from -65 °C to +185 °C.
Is the TPSMP33HM3/84A suitable for protecting CAN FD interfaces?
Yes, the TPSMP33HM3/84A is suitable for CAN FD interface protection when used in paired configuration (one per line) with proper PCB layout. Its sub-1 ns response time, low leakage (<1 μA), and 47.7 V clamping voltage prevent damage from ESD and coupled transients while minimizing signal distortion. However, designers must verify total line capacitance impact on bit-rate timing budgets, as junction capacitance is not specified separately for this variant.
Does the TPSMP33HM3/84A meet AEC-Q101 requirements for automotive use?
Yes, the TPSMP33HM3/84A is AEC-Q101 qualified and explicitly listed as automotive grade in Vishay's documentation. It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and mechanical shock per JESD22 standards. The HM3 suffix confirms halogen-free, RoHS-compliant construction and JESD201 Class 2 whisker resistance, fulfilling Tier 1 supplier material requirements.
What is the meaning of the "/84A" suffix in TPSMP33HM3/84A?
The "/84A" suffix in TPSMP33HM3/84A denotes the preferred packaging option: 7-inch diameter plastic tape and reel containing 3000 units. This format is optimized for high-volume SMT assembly and aligns with industry-standard feeder compatibility. The "HM3" base indicates halogen-free, RoHS-compliant, and AEC-Q101-qualified construction, while "84A" specifies reel size and quantity-not a functional or electrical variant.
Can the TPSMP33HM3/84A be used in bidirectional protection configurations?
No, the TPSMP33HM3/84A is strictly unidirectional and must not be used for bidirectional protection. Its internal structure supports conduction only from anode to cathode during overvoltage events. For bidirectional applications such as USB or Ethernet data lines, a dedicated bidirectional TVS like SMAJ33CA or a dual-diode array is required. Using TPSMP33HM3/84A in reverse orientation risks permanent failure due to lack of reverse avalanche capability.
TPSMP33HM3/84A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-220AA
- Series:
- PAR®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 26.8V
- Voltage - Breakdown (Min):
- 29.7V
- Voltage - Clamping (Max) @ Ipp:
- 47.7V
- Current - Peak Pulse (10/1000µs):
- 8.4A
- Power - Peak Pulse:
- 400W
- 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-220AA (SMP)
TPSMP33HM3/84A FAQ
1.How can I place an order for TPSMP33HM3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP33HM3/84A 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 TPSMP33HM3/84A reliable?
The price and inventory of TPSMP33HM3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP33HM3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP33HM3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP33HM3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP33HM3/84A?
TPSMP33HM3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP33HM3/84A 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 TPSMP33HM3/84A?
For technical support, including TPSMP33HM3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP33HM3/84A requirements.
6.How does Aetrix verify that TPSMP33HM3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP33HM3/84A 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 TPSMP33HM3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP33HM3/84A?
All TPSMP33HM3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP33HM3/84A, 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 TPSMP33HM3/84A part is unused and in its original packaging.
Return procedure for TPSMP33HM3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP33HM3/84A Tags
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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