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Vishay General Semiconductor - Diodes Division TPSMP24AHE3/85A
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- Part No.:
- TPSMP24AHE3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP24AHE3/85A.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,764
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Product details
Overview
TPSMP24AHE3/85A from Vishay General Semiconductor is a unidirectional automotive-grade transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, with 22.8 V to 25.2 V breakdown voltage (VBR), 33.2 V clamping voltage (VC) at 12.0 A peak pulse current, and 400 W peak pulse power rating for VBR ≥13 V. It protects signal lines and ICs in automotive sensor units against ESD and load dump transients.
For engineers reviewing the TPSMP24AHE3/85A datasheet, TPSMP24AHE3/85A pinout, TPSMP24AHE3/85A application, or TPSMP24AHE3/85A equivalent, key selection factors include AEC-Q101 qualification, 1.0 mm profile for space-constrained PCB layouts, low incremental surge resistance, and RoHS-compliant matte tin terminations meeting JESD22-B102 solderability and JESD201 Class 2 whisker resistance.
Technical Context
This TVS diode uses Vishay's patented PAR oxide-passivated chip construction to achieve excellent clamping performance and fast response time under 10/1000 µs surge conditions. Its unidirectional configuration provides reverse-biased protection only, with cathode denoted by color band and polarity critical for correct circuit placement.
Rated for operation from −65 °C to +185 °C junction temperature, it delivers stable clamping across automotive thermal environments and meets MSL Level 1 per J-STD-020 with 260 °C lead-free reflow compatibility. The device is designed for surface-mount automated placement on FR-4 PCBs using 5.0 × 5.0 mm copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 22.8 V / 25.2 V - ensures reliable turn-on above system operating voltage while avoiding false triggering during normal transients |
| VC @ IPPM | 33.2 V at 12.0 A - limits downstream voltage stress during 10/1000 µs surges to protect 24 V automotive ICs |
| PPPM | 400 W - supports high-energy transients common in 24 V vehicle power networks including load dump |
| IR @ VWM | 1.0 µA max at 20.5 V - minimizes standby leakage in always-on sensor circuits |
| TJ max | +185 °C - enables use in under-hood locations with elevated ambient temperatures |
| Package | DO-220AA (SMP) - 1.0 mm typical height enables ultra-low-profile layout in tight spaces like ADAS modules |
Pinout & Package
DO-220AA (SMP) package: 2-terminal surface-mount device with cathode indicated by color band; terminals are matte tin plated, solderable per J-STD-002 and JESD22-B102, and qualified to JESD201 Class 2 for whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point during surge conduction | Connected to protected line side; must be routed with low-inductance trace to minimize clamping overshoot |
| Cathode | Surge current return path to ground or rail | Marked with color band; requires solid low-impedance connection to reference plane to sustain 12 A pulse without voltage rise |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR oxide-passivated chip | Enables consistent clamping performance and long-term reliability under repeated surge stress in automotive environments |
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| MSL Level 1, 260 °C peak | Supports standard lead-free reflow without preconditioning or special handling |
| 1.0 mm typical height | Reduces board stack height in multi-layer modules such as radar front-ends and camera ECUs |
| UL 94 V-0 molding compound | Meets flammability requirements for safety-critical automotive interior and under-hood assemblies |
Applications
| Automotive Sensor Protection | 24 V Power Rail Clamping |
|---|---|
Use Scenario: Protecting CAN/LIN transceivers and analog sensor outputs (e.g., pressure, temperature) in engine bay modules exposed to ISO 7637-2 Pulse 1/2a/5a transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp negative-going transients and prevent latch-up or damage to input stages. Use Value: 33.2 V clamping ensures downstream 24 V-rated receivers remain within absolute maximum ratings during 10/1000 µs surges up to 12 A. |
Use Scenario: Safeguarding 24 V supply inputs of infotainment head units and telematics control units against load dump events per ISO 16750-2. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing energy from alternator-induced surges before reaching DC/DC converters and PMICs. Use Value: 400 W peak power rating sustains multiple 10/1000 µs pulses without degradation, supporting robustness over full vehicle lifetime. |
| Industrial Motor Drive I/O | Automotive Camera Module ESD |
Use Scenario: Shielding encoder feedback lines and digital I/O in industrial PLCs and motor drives subject to switching noise and inductive kickback. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS placed at connector interface to divert fast transients before reaching FPGA or microcontroller GPIOs. Use Value: 1.0 µA leakage at 20.5 V prevents signal distortion in high-impedance analog feedback paths while maintaining fast response. |
Use Scenario: ESD protection for FAKRA or HSD connectors in rear-view and surround-view camera modules per ISO 10605. IC Role / Device Role / Timing Role: Front-line TVS suppressing ±8 kV contact discharge before signals enter serializer/deserializer ICs. Use Value: Sub-1.0 mm height allows placement directly adjacent to connector footprint without interfering with flex cable routing or housing clearance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-E3/5AT | DO-214AC (SMA) package; 24 V nominal VBR, 38.9 V VC @ 10.3 A; 400 W PPPM; not AEC-Q101 qualified | Larger 2.3 mm height; suitable for non-automotive industrial designs where space is less constrained | Select when AEC-Q101 compliance is not required and existing SMA footprints exist |
| TPSMP24AHM3/85A | Same electrical specs and DO-220AA package; differs only in tape-and-reel packaging (85A vs. HM3 suffix denotes different reel size and orientation) | No functional difference; identical performance and mounting requirements | Choose based on production line feeder compatibility and volume order requirements |
Compared with SMAJ24A-E3/5AT, TPSMP24AHE3/85A offers AEC-Q101 qualification and 1.0 mm height for automotive integration; compared with TPSMP24AHM3/85A, it shares identical electrical behavior but differs only in reel packaging configuration for SMT placement logistics.
Availability
TPSMP24AHE3/85A is available at Aetrix Electronics and suitable for automotive sensor protection, 24 V power rail clamping, and industrial motor drive I/O requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for TPSMP24AHE3/85A 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 passive components for automotive, industrial, and computing markets.
The TPSMP24AHE3/85A belongs to Vishay's eSMP™ Series of high-power-density TVS diodes, engineered specifically for AEC-Q101-compliant transient protection in space-constrained automotive electronics.
FAQ
What is the breakdown voltage range of the TPSMP24AHE3/85A?
The TPSMP24AHE3/85A has a specified breakdown voltage (VBR) range of 22.8 V minimum to 25.2 V maximum at 1 mA test current. This ensures consistent turn-on behavior across production lots and temperature extremes, making it suitable for protecting 24 V nominal systems where precise clamping threshold is critical.
Is the TPSMP24AHE3/85A qualified for automotive applications?
Yes, the TPSMP24AHE3/85A is AEC-Q101 qualified and designated as high-reliability/automotive grade (suffix "A" in part number). It meets stringent automotive requirements including temperature cycling, humidity testing, and mechanical shock, and is intended for use in engine control units, body electronics, and ADAS sensor modules.
What is the clamping voltage of the TPSMP24AHE3/85A under surge conditions?
The TPSMP24AHE3/85A clamps to a maximum of 33.2 V at 12.0 A peak pulse current (IPPM) under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 standards and guarantees that downstream 24 V-rated ICs remain within safe operating limits during transient events.
Does the TPSMP24AHE3/85A have a unidirectional or bidirectional configuration?
The TPSMP24AHE3/85A is a unidirectional TVS diode, meaning it conducts only in reverse bias to clamp negative-going transients on positive rails. Polarity is marked by a cathode band, and incorrect orientation will result in no protection-designers must observe marking during layout and assembly.
What package type does the TPSMP24AHE3/85A use, and what are its key mechanical features?
The TPSMP24AHE3/85A uses the DO-220AA (SMP) package: a compact surface-mount outline with 1.0 mm typical height, 0.142 inch length, and 0.126 inch width. Its matte tin-plated leads meet JESD22-B102 solderability and JESD201 Class 2 whisker resistance, and the molding compound complies with UL 94 V-0.
TPSMP24AHE3/85A 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):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 33.2V
- Current - Peak Pulse (10/1000µs):
- 12A
- 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)
TPSMP24AHE3/85A FAQ
1.How can I place an order for TPSMP24AHE3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP24AHE3/85A 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 TPSMP24AHE3/85A reliable?
The price and inventory of TPSMP24AHE3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP24AHE3/85A is usually 5 days.
3.What payment methods are accepted for TPSMP24AHE3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP24AHE3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP24AHE3/85A?
TPSMP24AHE3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP24AHE3/85A 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 TPSMP24AHE3/85A?
For technical support, including TPSMP24AHE3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP24AHE3/85A requirements.
6.How does Aetrix verify that TPSMP24AHE3/85A is sourced from the original manufacturer or authorized distributors?
All TPSMP24AHE3/85A 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 TPSMP24AHE3/85A meets industry standards.
7.What is the process for return or replacement of TPSMP24AHE3/85A?
All TPSMP24AHE3/85A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP24AHE3/85A, 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 TPSMP24AHE3/85A part is unused and in its original packaging.
Return procedure for TPSMP24AHE3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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