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Vishay General Semiconductor - Diodes Division TPSMP24HE3/85A
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- Part No.:
- TPSMP24HE3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP24HE3/85A.pdf
- Description:
- TVS DIODE 19.4VWM 34.7VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,147
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Product details
Overview
TPSMP24HE3/85A from Vishay General Semiconductor is a unidirectional automotive-grade transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, with 21.6 V to 26.4 V breakdown voltage (VBR), 34.7 V clamping voltage (VC) at 11.5 A peak pulse current, and 400 W peak pulse power rating for VBR ≥13 V. It protects sensor signal lines and drive transistors in automotive ECUs.
For engineers reviewing the TPSMP24HE3/85A datasheet, TPSMP24HE3/85A pinout, TPSMP24HE3/85A application, or TPSMP24HE3/85A equivalent, key selection criteria include AEC-Q101 qualification, 1.0 mm profile for space-constrained PCBs, low incremental surge resistance, and RoHS-compliant matte tin terminations meeting J-STD-002 solderability.
Technical Context
This TVS diode uses patented PAR oxide-passivated chip construction to achieve excellent clamping capability and very fast response time (<1 ns), enabling effective suppression of ESD and ISO 7637-2/ISO 16750-2 transients. Its unidirectional configuration provides forward conduction path during overvoltage events while maintaining low leakage (<1 µA at 19.4 V).
The device operates across -65 °C to +185 °C junction temperature range and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its DO-220AA package features UL 94 V-0 molding compound and cathode band polarity marking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 21.6 V / 26.4 V - Ensures reliable triggering above system operating voltage while avoiding false trips |
| VC @ IPPM | 34.7 V at 11.5 A - Limits downstream IC voltage stress during 10/1000 µs surge events |
| PPPM | 400 W - Sustains high-energy transients common in 12 V automotive power nets |
| IFSM | 40 A - Withstands repetitive load dump surges without degradation |
| TJ max | +185 °C - Supports under-hood placement in engine control modules |
| Leakage @ VWM | <1 µA at 19.4 V - Minimizes standby power loss in always-on sensor circuits |
| Package | DO-220AA (SMP) - 3.61 mm × 2.18 mm footprint with 1.0 mm height for automated SMT placement |
Pinout & Package
DO-220AA (SMP) surface-mount package with cathode indicated by color band; matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during reverse-biased clamping | Connected to protected line; conducts surge current to ground when VBR exceeded |
| Cathode | Current exit during clamping; marked with band | Connected to system ground or lower-potential rail; defines unidirectional conduction direction |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR oxide-passivated chip | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, HTRB, and ESD testing per stress test plan |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without popcorn cracking or delamination |
| UL 94 V-0 molding compound | Prevents flame propagation in safety-critical vehicle subsystems |
| JESD201 Class 2 whisker resistance | Eliminates tin whisker growth risk in high-reliability automotive electronics |
Applications
| Automotive Engine Control Unit (ECU) | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Protecting LIN bus transceiver inputs from load dump and battery reversal transients. IC Role / Device Role: Unidirectional TVS clamp on signal line between microcontroller and LIN transceiver. Use Value: Clamps induced surges to ≤34.7 V, preventing damage to 5 V tolerant transceiver inputs while maintaining <1 µA leakage at 19.4 V stand-off. |
Use Scenario: Safeguarding CAN FD signal lines in door module against ESD and coupled noise. IC Role / Device Role: Secondary protection stage after common-mode choke, placed adjacent to connector. Use Value: 400 W peak power rating absorbs multiple 10/1000 µs pulses without degradation, supporting 125 °C under-hood operation. |
| Automotive Occupant Detection Sensor | Automotive Camera Power Input |
Use Scenario: Shielding capacitive seat occupancy sensor analog front-end from ignition noise. IC Role / Device Role: Low-capacitance TVS on differential sense lines feeding ADC input. Use Value: 1.0 mm profile enables placement within tight spacing constraints near sensor traces; 185 °C max junction temp ensures stability near heated seats. |
Use Scenario: Suppressing ISO 16750-2 pulse 5a transients on 12 V camera power rail. IC Role / Device Role: Primary overvoltage clamp before DC-DC converter input. Use Value: 40 A IFSM withstands repeated load dump events; DO-220AA thermal performance supports 2.5 W steady-state dissipation on FR-4 PCB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-E3/5AT | DO-214AC (SMA) package; 24 V nominal VBR; 400 W PPPM; higher 2.2 mm height | Larger footprint (4.3 mm × 2.6 mm); less suitable for ultra-thin modules | Choose SMAJ24A-E3/5AT if board layout allows larger package and legacy SMA tooling is in place |
| TPSMP24AHE3/85A | Narrower VBR tolerance (22.8–25.2 V vs. 21.6–26.4 V); same DO-220AA package and 400 W rating | Higher precision clamping for systems requiring tighter voltage margin control | Choose TPSMP24AHE3/85A when design requires tighter VBR distribution and reduced variation across temperature |
Compared with SMAJ24A-E3/5AT, TPSMP24HE3/85A offers 35 % lower profile and 15 % smaller footprint, while TPSMP24AHE3/85A provides ±5.5 % VBR tolerance versus ±10.2 % for TPSMP24HE3/85A-enabling more deterministic clamping in noise-sensitive analog sensor paths.
Availability
TPSMP24HE3/85A is available at Aetrix Electronics and suitable for automotive ECU, body control module, and occupant detection sensor designs requiring stable component supply, AEC-Q101 compliance, and high-reliability transient suppression.
Supply support for TPSMP24HE3/85A 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 high-reliability diodes, MOSFETs, and optoelectronics for automotive, industrial, and computing markets.
The TPSMP24HE3/85A belongs to Vishay's eSMP™ series of high-power-density TVS diodes, engineered specifically for AEC-Q101-compliant automotive electronics requiring robust transient immunity in compact form factors.
FAQ
What is the clamping voltage of the TPSMP24HE3/85A at its rated peak pulse current?
The TPSMP24HE3/85A has a maximum clamping voltage (VC) of 34.7 V at 11.5 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value ensures protected downstream components remain below their absolute maximum voltage ratings during surge events. The TPSMP24HE3/85A achieves this with low incremental surge resistance inherent to its PAR oxide-passivated chip structure.
Is the TPSMP24HE3/85A qualified for automotive applications?
Yes, the TPSMP24HE3/85A is AEC-Q101 qualified and designated as high-reliability/automotive grade (HE3 suffix). It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and ESD per the AEC-Q101 standard. The TPSMP24HE3/85A is intended for use in engine control units, body modules, and other automotive subsystems where reliability under harsh environmental conditions is mandatory.
What does the "HE3/85A" suffix indicate in TPSMP24HE3/85A?
The "HE3" suffix denotes RoHS-compliant, high-reliability/automotive grade construction with JESD201 Class 2 whisker resistance. The "85A" indicates packaging in 13-inch diameter plastic tape and reel with a base quantity of 10,000 units. This packaging format supports high-volume automated assembly and is specified in Vishay's ordering information table for the TPSMP24HE3/85A.
How does the DO-220AA package of the TPSMP24HE3/85A compare to traditional SMA packages?
The DO-220AA (SMP) package of the TPSMP24HE3/85A measures 3.61 mm × 2.18 mm with a typical height of 1.0 mm-35 % lower and 25 % smaller in footprint than the DO-214AC (SMA) package. This enables denser PCB layouts in space-constrained automotive modules. The TPSMP24HE3/85A maintains equivalent 400 W surge capability while improving thermal performance due to optimized copper pad layout recommendations.
What is the maximum operating temperature for the TPSMP24HE3/85A?
The TPSMP24HE3/85A has a maximum junction temperature (TJ) of +185 °C and an operating junction/storage temperature range of -65 °C to +185 °C. This wide range supports placement in under-hood environments such as engine control units and transmission control modules. The TPSMP24HE3/85A retains full electrical specifications across this range, with VBR exhibiting a temperature coefficient of 0.094 %/°C.
TPSMP24HE3/85A 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):
- 19.4V
- Voltage - Breakdown (Min):
- 21.6V
- Voltage - Clamping (Max) @ Ipp:
- 34.7V
- Current - Peak Pulse (10/1000µs):
- 11.5A
- 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)
TPSMP24HE3/85A FAQ
1.How can I place an order for TPSMP24HE3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP24HE3/85A 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 TPSMP24HE3/85A reliable?
The price and inventory of TPSMP24HE3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP24HE3/85A is usually 5 days.
3.What payment methods are accepted for TPSMP24HE3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP24HE3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP24HE3/85A?
TPSMP24HE3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP24HE3/85A 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 TPSMP24HE3/85A?
For technical support, including TPSMP24HE3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP24HE3/85A requirements.
6.How does Aetrix verify that TPSMP24HE3/85A is sourced from the original manufacturer or authorized distributors?
All TPSMP24HE3/85A 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 TPSMP24HE3/85A meets industry standards.
7.What is the process for return or replacement of TPSMP24HE3/85A?
All TPSMP24HE3/85A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP24HE3/85A, 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 TPSMP24HE3/85A part is unused and in its original packaging.
Return procedure for TPSMP24HE3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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