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Vishay General Semiconductor - Diodes Division TPSMP33AHM3_A/I
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- Part No.:
- TPSMP33AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP33AHM3_A/I.pdf
- Description:
- TVS DIODE 28.2VWM 45.7VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,510
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Product details
Overview
TPSMP33AHM3_A/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the eSMP® Series, designed for high-reliability automotive and industrial overvoltage protection. It features a 31.4 V to 34.7 V breakdown voltage (VBR), 28.2 V stand-off voltage (VWM), 400 W peak pulse power (PPPM), 185 °C maximum junction temperature, and SMP (DO-220AA) package with 1.0 mm typical height - deployed to protect sensor signal lines and drive transistors against ESD and surge events.
For engineers reviewing the TPSMP33AHM3_A/I datasheet, TPSMP33AHM3_A/I pinout, TPSMP33AHM3_A/I application, or TPSMP33AHM3_A/I equivalent, key selection criteria include clamping voltage (45.7 V at IPPM), low incremental surge resistance, AEC-Q101 qualification, MSL Level 1 rating, and unidirectional polarity with cathode band marking.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve fast response time and stable clamping under 10/1000 µs surge waveforms. Its junction passivation enables operation up to 185 °C and supports automotive-grade reliability requirements per AEC-Q101.
The device operates unidirectionally with a 28.2 V reverse stand-off voltage and clamps to 45.7 V at its rated 8.8 A peak pulse current. It exhibits 1.0 µA max reverse leakage at VWM, 0.098 %/°C VBR temperature coefficient, and meets J-STD-020 reflow profile (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 31.4 V / 34.7 V - ensures reliable triggering above system operating voltage while maintaining margin against false trips |
| VWM | 28.2 V - maximum continuous reverse voltage before significant leakage begins; matches 24 V automotive supply rails |
| VC @ IPPM | 45.7 V - clamping voltage during 8.8 A 10/1000 µs surge; limits protected IC stress to safe levels |
| PPPM | 400 W - peak pulse power handling capacity for transient suppression in harsh environments |
| TJ max. | +185 °C - enables deployment in under-hood automotive modules and high-temperature industrial enclosures |
| Package | SMP (DO-220AA) - ultra-low-profile surface-mount package (1.0 mm height) optimized for automated placement and space-constrained PCBs |
| AEC-Q101 | Qualified - certified for automotive electronics per stress test standard, including temperature cycling and HTRB |
Pinout & Package
TPSMP33AHM3_A/I is a two-terminal unidirectional TVS diode in the SMP (DO-220AA) package. Polarity is marked by a cathode band on the case; the terminal adjacent to the band is the cathode, and the opposite end is the anode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive terminal under forward bias; connected to ground or lower-potential node in unidirectional protection configuration | Completes current path during surge event when cathode is at higher potential; must be routed to low-impedance ground plane |
| Cathode | Marked terminal (color band); connected to protected line or signal trace | Receives transient energy and shunts it to ground via anode; layout requires minimal trace inductance to preserve clamping performance |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivated anisotropic rectifier | Enables stable VBR and low leakage across temperature; eliminates need for external passivation layers in PCB assembly |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free reflow without moisture-related popcorn failure; eliminates baking requirement pre-assembly |
| Very low profile (1.0 mm typical height) | Reduces board stack height in compact modules such as ADAS sensors and motor control PCBs |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients; critical for protecting sensitive analog front-ends and CAN transceivers |
| Halogen-free, RoHS-compliant, AEC-Q101 qualified | Fulfills automotive OEM material compliance mandates and environmental regulations without design compromise |
Applications
| Automotive Sensor Protection | Industrial Motor Drive Interface |
|---|---|
Use Scenario: Protecting LIN/CAN bus nodes and analog sensor outputs (e.g., pressure, temperature) in engine control units and body electronics modules. IC Role / Device Role: Unidirectional TVS placed between signal line and chassis ground to clamp ESD (IEC 61000-4-2) and load dump surges. Use Value: Clamps to 45.7 V at 8.8 A, limiting stress on downstream transceivers and ADC inputs while maintaining 28.2 V signal integrity margin. | Use Scenario: Safeguarding gate driver inputs and feedback signal paths in variable-frequency drives and servo controllers. IC Role / Device Role: Transient suppressor on isolated logic-level signals interfacing with high-voltage power stages. Use Value: Withstands repeated 400 W surges and operates reliably up to +185 °C ambient, matching thermal profiles of motor control PCBs. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side overvoltage protection on 5–24 V DC outputs of wall adapters and USB-PD chargers. IC Role / Device Role: Standoff-rated TVS absorbing inductive kickback and lightning-induced surges entering via output cables. Use Value: 28.2 V VWM avoids conduction during normal operation; 45.7 V clamping prevents damage to downstream USB controllers and PMICs. | Use Scenario: Front-end protection for Ethernet PHY interfaces and auxiliary power monitoring circuits in telecom base station line cards. IC Role / Device Role: Low-capacitance unidirectional suppressor on differential pairs and bias rails exposed to field surges. Use Value: SMP package minimizes parasitic inductance; AEC-Q101 qualification ensures long-term reliability in 24/7 infrastructure deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A-E3/57T | DO-214AC (SMA) package; 33 V VBR min 31.4 V, max 34.7 V; 600 W PPPM; 150 °C TJ max | Higher PPPM but larger footprint (2.5 mm height); not AEC-Q101 qualified | Preferred where higher surge margin is needed and automotive qualification is not required |
| TPSMA6.8A-Q | DO-214AC package; 6.8 V VBR; 600 W PPPM; AEC-Q101 qualified; same 185 °C TJ | Lower voltage rating; incompatible for 24 V systems requiring ≥28 V VWM | Only suitable for 5–12 V rail protection; not a functional substitute for TPSMP33AHM3_A/I |
Compared with SMAJ33A-E3/57T and TPSMA6.8A-Q, the TPSMP33AHM3_A/I uniquely combines AEC-Q101 qualification, 185 °C operation, and ultra-low 1.0 mm profile in the SMP package - making it the only option meeting space, thermal, and automotive compliance constraints simultaneously.
Availability
TPSMP33AHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial motor drives, consumer power adapters, and telecom line card designs requiring stable component supply, long-lifecycle support, and AEC-Q101-compliant surge protection.
Supply support for TPSMP33AHM3_A/I 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, efficiency, and application-specific optimization.
The eSMP® Series - including TPSMP33AHM3_A/I - was developed to deliver high-power-density TVS solutions for space-constrained, high-temperature automotive and industrial applications where traditional packages fail to meet thermal or mechanical requirements.
FAQ
What is the breakdown voltage range for TPSMP33AHM3_A/I?
The TPSMP33AHM3_A/I has a specified breakdown voltage (VBR) range of 31.4 V minimum to 34.7 V maximum at 1.0 mA test current, measured per ANSI/IEEE C62.35. This range ensures robust triggering above 28.2 V stand-off voltage while accommodating process variation and temperature drift - critical for stable protection in 24 V automotive systems where TPSMP33AHM3_A/I is commonly deployed.
Is TPSMP33AHM3_A/I suitable for automotive applications?
Yes, TPSMP33AHM3_A/I is AEC-Q101 qualified and rated for operation up to +185 °C junction temperature, making it suitable for under-hood and body-control module applications. Its SMP (DO-220AA) package, MSL Level 1 reflow compatibility, and halogen-free/RoHS-compliant construction align with automotive OEM requirements - all verified in the official Vishay document 88471 for TPSMP33AHM3_A/I.
What is the clamping voltage of TPSMP33AHM3_A/I at its rated surge current?
The TPSMP33AHM3_A/I clamps to a maximum of 45.7 V at its rated 8.8 A peak pulse current (IPPM) under a 10/1000 µs waveform. This value is guaranteed across temperature and represents the upper limit of voltage seen by protected circuitry during surge events - a key parameter used to verify safe operation of downstream components like CAN transceivers or microcontrollers in systems using TPSMP33AHM3_A/I.
Does TPSMP33AHM3_A/I have polarity marking, and how is it identified?
Yes, TPSMP33AHM3_A/I uses a cathode band marking on the SMP (DO-220AA) case to indicate polarity. The terminal adjacent to the color band is the cathode and must be connected to the line being protected; the opposite terminal is the anode, typically tied to ground. This unidirectional configuration is essential for correct operation - misorientation would prevent proper clamping and render TPSMP33AHM3_A/I ineffective.
What packaging options are available for TPSMP33AHM3_A/I?
TPSMP33AHM3_A/I is supplied in 13-inch diameter plastic tape and reel format with a base quantity of 10,000 pieces, designated by the "I" suffix in the ordering code. This packaging supports high-speed automated placement and is compatible with standard SMT feeders - distinct from the 7-inch reel option ("H" suffix) used for TPSMP33AHM3_A/H. Both share identical electrical and thermal specifications for TPSMP33AHM3_A/I.
TPSMP33AHM3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-220AA
- Series:
- PAR®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 28.2V
- Voltage - Breakdown (Min):
- 31.4V
- Voltage - Clamping (Max) @ Ipp:
- 45.7V
- Current - Peak Pulse (10/1000µs):
- 8.8A
- 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)
TPSMP33AHM3_A/I FAQ
1.How can I place an order for TPSMP33AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP33AHM3_A/I 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 TPSMP33AHM3_A/I reliable?
The price and inventory of TPSMP33AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP33AHM3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMP33AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP33AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP33AHM3_A/I?
TPSMP33AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP33AHM3_A/I 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 TPSMP33AHM3_A/I?
For technical support, including TPSMP33AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP33AHM3_A/I requirements.
6.How does Aetrix verify that TPSMP33AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMP33AHM3_A/I 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 TPSMP33AHM3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMP33AHM3_A/I?
All TPSMP33AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP33AHM3_A/I, 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 TPSMP33AHM3_A/I part is unused and in its original packaging.
Return procedure for TPSMP33AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP33AHM3_A/I Tags
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