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Vishay General Semiconductor - Diodes Division TPSMP30AHM3/85A
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- Part No.:
- TPSMP30AHM3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP30AHM3/85A.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,277
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Product details
Overview
TPSMP30AHM3/85A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, designed for high-reliability overvoltage protection of sensitive electronics. It features 30 V nominal breakdown voltage (VBR = 28.5–31.5 V), 400 W peak pulse power (10/1000 µs), 9.7 A peak pulse current (IPPM), and clamps to ≤41.4 V at rated surge - used in automotive sensor signal lines, industrial I/O ports, and power supply rail protection.
For engineers reviewing the TPSMP30AHM3/85A datasheet, TPSMP30AHM3/85A pinout, TPSMP30AHM3/85A application, or TPSMP30AHM3/85A equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 185 °C junction temperature rating, low-profile 1.0 mm height, and MSL Level 1 reflow compatibility - critical for automotive-grade PCB designs requiring robust ESD/surge immunity.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD (IEC 61000-4-2) and lightning-induced transients (IEC 61000-4-5). Its unidirectional configuration provides forward conduction capability while clamping reverse surges above VWM = 25.6 V.
Thermally rated for TJ = –65 °C to +185 °C and qualified per AEC-Q101, the device supports high-reliability deployment in under-hood automotive modules and industrial controllers where thermal cycling and long-term stability are essential. The DO-220AA package enables automated placement with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 28.5 V / 31.5 V - ensures reliable triggering above system operating voltage while avoiding false clamping during normal operation |
| VWM | 25.6 V - maximum continuous reverse stand-off voltage compatible with 24 V automotive and industrial bus systems |
| IPPM (10/1000 µs) | 9.7 A - delivers robust surge handling for ISO 7637-2 Pulse 1/2a/5a compliance in vehicle ECUs |
| VC @ IPPM | ≤41.4 V - limits downstream voltage stress on protected ICs such as CAN transceivers or microcontrollers |
| PPPM | 400 W - high power density enables compact board-level protection without heatsinking |
| TJ max | +185 °C - supports operation in high-temperature environments including engine control units and power inverters |
| Package | DO-220AA (SMP) - 1.0 mm typical height, halogen-free, RoHS-compliant, and AEC-Q101 qualified |
Pinout & Package
DO-220AA (SMP) surface-mount package with cathode indicated by color band; terminals are matte tin-plated for solderability per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connects to lower-potential side (e.g., ground or return line) in unidirectional configuration |
| Cathode | Clamping node | Marked with color band; connects to protected line (e.g., 24 V rail or signal trace) to divert surge energy to ground |
Key Features
| Feature | Design Value |
|---|---|
| Passivated anisotropic rectifier technology | Enables stable VBR tolerance (±5 %) and low leakage (<1 μA at VWM) across temperature and lifetime |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control, body electronics, and ADAS sensors |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without moisture sensitivity concerns or baking requirements |
| 185 °C junction temperature rating | Extends operational life in thermally stressed environments such as power converters and motor drives |
| Low-profile 1.0 mm height | Reduces mechanical interference in stacked or space-constrained assemblies like automotive camera modules |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
Use Scenario: Protecting LIN/CAN bus nodes and analog sensor outputs (e.g., pressure, temperature) in engine control modules against load dump and ESD. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp transients before reaching MCU or transceiver inputs. Use Value: Clamps to ≤41.4 V at 9.7 A surge, preserving signal integrity and preventing latch-up in AEC-Q100 qualified microcontrollers. | Use Scenario: Safeguarding digital input/output channels on PLC modules exposed to inductive switching noise and field wiring surges. IC Role / Device Role / Timing Role: Standoff protection element mounted directly at connector entry point to shunt energy before entering isolation barriers or logic buffers. Use Value: 400 W peak power rating handles repetitive 10/1000 µs transients per IEC 61000-4-4, reducing need for secondary protection stages. |
| 24 V Power Rail Protection | Consumer Device USB/DC Jack Protection |
Use Scenario: Secondary overvoltage protection on 24 V DC input rails of industrial gateways and PoE-powered equipment subjected to ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Parallel-connected TVS that activates only during overvoltage events, maintaining low quiescent current during normal operation. Use Value: VWM = 25.6 V ensures no conduction during nominal 24 V ±10 % operation while responding within nanoseconds to transients. | Use Scenario: ESD protection for USB Type-C receptacles and barrel jack inputs in smart home hubs and portable test instruments. IC Role / Device Role / Timing Role: First-line defense against human-body-model (HBM) and contact-discharge ESD events per IEC 61000-4-2 Level 4 (±8 kV). Use Value: Low capacitance (typ. <100 pF) avoids signal degradation on high-speed data lines while providing ≥30 kV air discharge immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A | Same VBR range (28.5–31.5 V), but SMA package (2.5 mm height); lower PPPM = 400 W same, but higher thermal resistance due to larger footprint | Less suitable for ultra-low-profile automotive modules; better for manual repair or legacy layouts with SMA footprints | Select SMAJ30A only if DO-220AA placement equipment is unavailable or board stack height allows 2.5 mm profile |
| TPSMP30AHE3/85A | Identical electrical specs and DO-220AA package; differs only in tape-and-reel packaging (85A vs. HE3 suffix denotes different reel size and carrier tape specification) | No functional difference; identical performance and mounting - purely logistics variant | TPSMP30AHE3/85A is functionally interchangeable but requires verification of reel compatibility with pick-and-place feeders |
Compared with SMAJ30A and TPSMP30AHE3/85A, the TPSMP30AHM3/85A offers optimal balance of ultra-low profile (1.0 mm), AEC-Q101 qualification, and standardized 13" tape-and-reel delivery - making it preferred for high-volume automotive SMT production where board height and reliability are prioritized over legacy footprint reuse.
Availability
TPSMP30AHM3/85A is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O port hardening, and 24 V power rail safeguarding requiring stable component supply across multi-year production cycles.
Supply support for TPSMP30AHM3/85A 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 TPSMP series belongs to Vishay's eSMP® family of high-power-density TVS diodes engineered specifically for AEC-Q101-compliant overvoltage protection in space-constrained, thermally demanding environments.
FAQ
What is the breakdown voltage tolerance for TPSMP30AHM3/85A?
The TPSMP30AHM3/85A has a specified breakdown voltage range of 28.5 V to 31.5 V at 1 mA test current, corresponding to a ±5 % tolerance. This tight VBR window ensures consistent clamping behavior across production lots and supports precise coordination with downstream overvoltage thresholds in protected circuits. The value is measured per ANSI/IEEE C62.35 standards.
Is TPSMP30AHM3/85A suitable for automotive applications?
Yes, TPSMP30AHM3/85A is AEC-Q101 qualified and rated for TJ = –65 °C to +185 °C, making it suitable for under-hood and cabin automotive applications including engine control units, body control modules, and ADAS sensor interfaces. Its DO-220AA package supports automated assembly in high-reliability automotive PCB manufacturing.
What is the maximum clamping voltage of TPSMP30AHM3/85A at its rated surge current?
The maximum clamping voltage (VC) of TPSMP30AHM3/85A is 41.4 V when subjected to its rated 10/1000 µs peak pulse current of 9.7 A. This value defines the upper voltage limit imposed on protected circuitry during transient events and is critical for ensuring compatibility with 3.3 V or 5 V logic interfaces downstream of the protection stage.
Does TPSMP30AHM3/85A have a bidirectional configuration option?
No, TPSMP30AHM3/85A is unidirectional only, as confirmed in the Vishay datasheet. It conducts in forward bias and clamps reverse transients above VWM. For bidirectional protection, engineers must select alternate part numbers such as TPSMP30AHM3/85A's counterpart in the bidirectional TPSMB series - not a drop-in replacement for TPSMP30AHM3/85A.
What packaging format does TPSMP30AHM3/85A ship in?
TPSMP30AHM3/85A ships in 13-inch diameter plastic tape-and-reel format with a base quantity of 10,000 units per reel (package code "85A"). The HM3 suffix indicates halogen-free, RoHS-compliant construction with JESD 201 Class 2 whisker resistance, meeting automotive and industrial environmental compliance requirements.
TPSMP30AHM3/85A 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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 9.7A
- 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)
TPSMP30AHM3/85A FAQ
1.How can I place an order for TPSMP30AHM3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP30AHM3/85A 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 TPSMP30AHM3/85A reliable?
The price and inventory of TPSMP30AHM3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP30AHM3/85A is usually 5 days.
3.What payment methods are accepted for TPSMP30AHM3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP30AHM3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP30AHM3/85A?
TPSMP30AHM3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP30AHM3/85A 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 TPSMP30AHM3/85A?
For technical support, including TPSMP30AHM3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP30AHM3/85A requirements.
6.How does Aetrix verify that TPSMP30AHM3/85A is sourced from the original manufacturer or authorized distributors?
All TPSMP30AHM3/85A 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 TPSMP30AHM3/85A meets industry standards.
7.What is the process for return or replacement of TPSMP30AHM3/85A?
All TPSMP30AHM3/85A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP30AHM3/85A, 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 TPSMP30AHM3/85A part is unused and in its original packaging.
Return procedure for TPSMP30AHM3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP30AHM3/85A Tags
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