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Vishay General Semiconductor - Diodes Division TPSMP27AHM3/84A
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- Part No.:
- TPSMP27AHM3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP27AHM3/84A.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,242
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Product details
Overview
TPSMP27AHM3/84A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the eSMP® Series, designed for high-reliability overvoltage protection of sensitive electronics. It features a 25.7 V to 28.4 V breakdown voltage (VBR), 37.5 V clamping voltage (VC) at 10.7 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - optimized for automotive and industrial signal-line protection.
For engineers reviewing the TPSMP27AHM3/84A datasheet, TPSMP27AHM3/84A pinout, TPSMP27AHM3/84A application, or TPSMP27AHM3/84A equivalent, key selection criteria include its AEC-Q101 qualification, DO-220AA (SMP) package with 1.0 mm profile, TJ = 185 °C operation, low incremental surge resistance, and uni-directional polarity for DC-biased lines such as power rails and sensor interfaces.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to deliver fast response time (<1 ns), excellent clamping performance, and stable breakdown characteristics across temperature. Its junction passivation enables robust reliability under repetitive surge stress and high-temperature operation up to 185 °C.
The device operates as a uni-directional clamp, conducting only during reverse overvoltage events above VBR, with forward voltage limited to 2.5 V at 25 A. It meets MSL Level 1 per J-STD-020 and is halogen-free, RoHS-compliant, and qualified to AEC-Q101 for automotive use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 25.7 V min / 28.4 V max at 1 mA - defines precise overvoltage triggering threshold for reliable system-level protection |
| Clamping Voltage VC | 37.5 V at 10.7 A (10/1000 µs) - limits downstream voltage stress during surge events to safe levels |
| Peak Pulse Power PPPM | 400 W - supports high-energy transients common in automotive load-dump and ISO 7637-2 scenarios |
| Stand-off Voltage VWM | 23.1 V - ensures no conduction during normal 24 V system operation, minimizing leakage and power loss |
| Operating Temperature Range | -65 °C to +185 °C - enables deployment in under-hood automotive, industrial motor drives, and harsh-environment control units |
| Package | DO-220AA (SMP) - ultra-low-profile surface-mount package (1.0 mm height) compatible with automated SMT assembly |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, humidity, and surge endurance |
Pinout & Package
TPSMP27AHM3/84A is a two-terminal unidirectional TVS diode in the DO-220AA (SMP) package. The cathode is marked by a color band on the body; the anode and cathode terminals are arranged linearly along the package length for standard PCB layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference node | Connected to lower-potential side (e.g., ground or return path); establishes reference for clamping action |
| Cathode | Reverse voltage input / Surge current sink | Connected to protected line (e.g., 24 V rail or sensor output); conducts surge current to ground when VIN exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Enables stable VBR and low leakage (<1 µA at VWM) across temperature and lifetime |
| TJ = 185 °C capability | Supports placement near heat sources (e.g., power MOSFETs, motor drivers) without derating concerns |
| Low profile (1.0 mm height) | Reduces board stack height and improves mechanical robustness in vibration-prone automotive modules |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak - eliminates moisture sensitivity handling overhead |
| Uni-directional configuration | Optimized for DC-biased lines where reverse conduction must be blocked during normal operation |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from load dump and ESD in door module ECUs. IC Role / Device Role: Uni-directional TVS clamp placed between LIN line and ground to limit voltage excursions to ≤37.5 V. Use Value: Prevents latch-up or permanent damage to 5 V/3.3 V logic while maintaining signal integrity due to low capacitance and fast response. |
Use Scenario: Safeguarding 4–20 mA current-loop inputs against field wiring surges and induced transients in factory automation cabinets. IC Role / Device Role: Standoff-rated TVS (VWM = 23.1 V) placed across input terminals to shunt >25.7 V spikes to ground. Use Value: Ensures continuous analog measurement accuracy by clamping without false triggering during nominal 24 V supply operation. |
| Automotive HVAC Blower Motor Driver | Consumer Appliance Power Supply Input |
Use Scenario: Suppressing inductive kickback from brushed DC blower motors controlled by N-channel MOSFETs in climate control systems. IC Role / Device Role: High-power TVS (400 W PPPM) mounted across motor terminals to absorb energy from L·di/dt events. Use Value: Extends MOSFET lifetime by limiting drain-source voltage overshoot to 37.5 V, avoiding avalanche stress. |
Use Scenario: Providing secondary overvoltage protection on the DC output of AC/DC adapters used in smart home hubs and display panels. IC Role / Device Role: Low-leakage (1 µA at VWM) TVS placed after primary regulation to guard against regulator failure or capacitor discharge transients. Use Value: Maintains system safety certification (IEC 62368-1) by limiting fault voltage to <40 V without affecting standby current budget. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28A | Higher VBR (25.2–27.8 V), same DO-214AC package, 400 W PPPM, but rated only to TJ = 150 °C | Lacks AEC-Q101 qualification and 185 °C operation - unsuitable for under-hood automotive use | Select SMAJ28A only for cost-sensitive industrial or consumer designs where extended temperature range is not required |
| TPSMD28A | Same VBR range (25.2–27.8 V), higher PPPM (500 W), larger DO-214AB package (2.3 mm height), TJ = 175 °C | Greater surge handling at expense of board space and height - better for high-energy industrial surges | Choose TPSMD28A when system-level testing requires >400 W surge margin or when thermal mass favors larger package |
Compared with SMAJ28A and TPSMD28A, the TPSMP27AHM3/84A uniquely balances ultra-low profile (1.0 mm), AEC-Q101 qualification, and 185 °C operation - making it the preferred choice for space-constrained, high-reliability automotive modules where both mechanical fit and thermal resilience are critical.
Availability
TPSMP27AHM3/84A is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and consumer appliance power management requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPSMP27AHM3/84A 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The TPSMP27AHM3/84A belongs to Vishay's eSMP® Series of high-power-density TVS diodes - engineered specifically for AEC-Q101-compliant, space-efficient overvoltage protection in next-generation automotive and industrial control systems.
FAQ
What is the breakdown voltage tolerance for TPSMP27AHM3/84A?
The TPSMP27AHM3/84A has a specified breakdown voltage (VBR) range of 25.7 V minimum to 28.4 V maximum at 1 mA test current. This ±5 % tolerance ensures consistent clamping behavior across production lots and supports robust design margins for 24 V automotive systems where nominal rail voltages can vary between 20 V and 28 V during cranking or load dump.
Is TPSMP27AHM3/84A suitable for bidirectional signal-line protection?
No - the TPSMP27AHM3/84A is a unidirectional TVS diode and conducts only during reverse-biased overvoltage events. It must not be used on AC-coupled or bidirectional data lines (e.g., CAN, USB, RS-485) without external circuitry. For such applications, a bidirectional variant like TPSMP27AHM3/84A's counterpart TPSMP27CA would be required, though that part is not offered in the HM3/84A tape-and-reel configuration.
Does TPSMP27AHM3/84A require a heatsink for 2.5 W steady-state dissipation?
No - the TPSMP27AHM3/84A is rated for 2.5 W power dissipation at TA = 75 °C on an infinite heatsink, but its intended use is transient suppression, not continuous power handling. Under normal operation, leakage current remains below 1 µA at 23.1 V, resulting in negligible steady-state power. Heatsinking is unnecessary unless subjected to frequent high-duty-cycle surges, which is outside its design envelope.
What does the "HM3/84A" suffix indicate in TPSMP27AHM3/84A?
The "HM3" suffix denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. The "/84A" specifies the packaging: 3000-piece quantity on 7-inch plastic tape-and-reel with industry-standard SMP carrier tape dimensions - enabling seamless integration into high-speed SMT pick-and-place lines without reel changeovers.
How does TPSMP27AHM3/84A perform under high-temperature operating conditions?
The TPSMP27AHM3/84A maintains full specification compliance up to TJ = 185 °C, with VBR exhibiting a positive temperature coefficient of +0.096 %/°C. At 150 °C junction temperature, reverse leakage remains ≤1 µA at VWM, and clamping voltage increases only marginally - ensuring reliable protection in under-hood environments where ambient temperatures exceed 125 °C.
TPSMP27AHM3/84A 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):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 10.7A
- 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)
TPSMP27AHM3/84A FAQ
1.How can I place an order for TPSMP27AHM3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP27AHM3/84A 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 TPSMP27AHM3/84A reliable?
The price and inventory of TPSMP27AHM3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP27AHM3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP27AHM3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP27AHM3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP27AHM3/84A?
TPSMP27AHM3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP27AHM3/84A 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 TPSMP27AHM3/84A?
For technical support, including TPSMP27AHM3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP27AHM3/84A requirements.
6.How does Aetrix verify that TPSMP27AHM3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP27AHM3/84A 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 TPSMP27AHM3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP27AHM3/84A?
All TPSMP27AHM3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP27AHM3/84A, 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 TPSMP27AHM3/84A part is unused and in its original packaging.
Return procedure for TPSMP27AHM3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP27AHM3/84A Tags
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