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Vishay General Semiconductor - Diodes Division TPSMP24AHM3_A/H
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- Part No.:
- TPSMP24AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP24AHM3_A/H.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,080
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Product details
Overview
TPSMP24AHM3_A/H 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 breakdown voltage of 22.8–25.2 V, peak pulse power rating of 400 W (10/1000 µs), clamping voltage of 33.2 V at 12 A, and operates up to TJ = 185 °C. It is used to protect signal lines and drive transistors in automotive ECUs and sensor interfaces.
For engineers reviewing the TPSMP24AHM3_A/H datasheet, TPSMP24AHM3_A/H pinout, TPSMP24AHM3_A/H application, or TPSMP24AHM3_A/H equivalent, key selection criteria include unidirectional polarity, DO-220AA (SMP) package compatibility, AEC-Q101 qualification, low-profile 1.0 mm height, and 400 W surge capability with <1 ns response time.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for junction stability under repetitive surge stress. Its thermal design supports continuous operation at TJ up to 185 °C and meets MSL Level 1 reflow requirements (260 °C peak).
The device delivers low incremental surge resistance and excellent clamping linearity across its 12 A IPPM rating. Its unidirectional configuration enables precise reverse-biased protection without forward conduction interference in DC-coupled signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 22.8 V / 25.2 V - Ensures reliable triggering above system operating voltage (20.5 V VWM) while avoiding false trips. |
| VC @ IPPM | 33.2 V - Clamps transient energy to safe levels for downstream 3.3 V or 5 V logic and microcontrollers. |
| PPPM | 400 W - Sustains high-energy surges per ISO 7637-2 Pulse 1/2a/5a in automotive environments. |
| IFSM | 40 A - Withstands 10 ms half-sine surge without bond wire failure or thermal runaway. |
| TJ max | 185 °C - Enables placement near heat sources (e.g., power stages) without derating in engine bay applications. |
| Package | SMP (DO-220AA) - 2.60 mm × 1.35 mm footprint with 1.0 mm typical height for space-constrained PCB layouts. |
Pinout & Package
TPSMP24AHM3_A/H uses the SMP (DO-220AA) surface-mount package: cathode indicated by a color band; anode and cathode terminals are on opposite ends of the molded body. The package is halogen-free, RoHS-compliant, and qualified to AEC-Q101.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during clamping | Connected to protected line (e.g., CAN_H); conducts surge current toward ground when VREV > VBR. |
| Cathode | Current exit terminal during clamping | Connected to ground reference; polarity marking ensures correct orientation to avoid forward conduction in normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Stabilizes leakage and VBR drift over temperature and lifetime-critical for 15+ year automotive deployments. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including HTOL, TC, and ESD testing per JESD47. |
| MSL Level 1 | Enables single-pass 260 °C reflow without popcorn cracking or delamination-no baking required pre-assembly. |
| Low profile (1.0 mm) | Reduces board-level mechanical stress under thermal cycling and allows stacking with adjacent tall components. |
| Unidirectional polarity | Prevents unintended forward conduction in DC-biased lines (e.g., LIN bus, sensor supply rails) during normal operation. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control modules exposed to load dump and ISO 7637-2 transients. IC Role / Device Role: Transient voltage suppressor placed between sensor output and MCU ADC input. Use Value: Limits clamped voltage to 33.2 V, preventing damage to 5 V-tolerant ADC inputs while maintaining signal integrity below VWM = 20.5 V. |
Use Scenario: Safeguarding CAN_H/CAN_L lines in industrial gateways subjected to EFT bursts and surge coupling from motor drives. IC Role / Device Role: Unidirectional TVS on each CAN line referenced to chassis ground. Use Value: 400 W peak power handling absorbs 10/1000 µs surges without degradation; 1.0 mm height avoids interference with RJ45 or M12 connector mounting. |
| Power Supply Rail Clamp | Motor Drive Gate Driver Protection |
Use Scenario: Secondary overvoltage clamp on 24 V auxiliary power rail feeding infotainment systems after primary DC/DC regulation. IC Role / Device Role: Standby TVS providing fail-safe backup to active OVP circuitry. Use Value: 22.8–25.2 V VBR range aligns with 24 V nominal rail tolerances; 185 °C TJ rating supports under-hood placement. |
Use Scenario: Protecting high-side gate driver IC inputs from Miller-induced transients during IGBT switching in HVAC inverters. IC Role / Device Role: Localized TVS at gate driver enable/control pin. Use Value: Sub-1 ns response time intercepts fast-rising dv/dt spikes before they propagate into CMOS input stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Lower PPPM (400 W same), but higher VC = 38.9 V; SMA package (3.5 mm × 2.0 mm), 2.2 mm height. | Less suitable for ultra-low-profile automotive modules; acceptable where board height > 2.2 mm is available. | Select SMAJ24A only if DO-220AA footprint is unavailable and 5.7 V higher clamping voltage is acceptable for protected ICs. |
| TPSMA6.8A | Same family, lower VBR (6.45–7.14 V); identical SMP package, 400 W PPPM only for VBR ≥ 13 V variants. | Not interchangeable-designed for 5 V logic rails, not 24 V systems; mismatched clamping leads to premature conduction. | Do not substitute TPSMA6.8A for TPSMP24AHM3_A/H; verify VBR and PPPM rating match target system voltage and surge class. |
Compared with SMAJ24A and TPSMA6.8A, TPSMP24AHM3_A/H uniquely combines 24 V-class clamping, 400 W surge capacity, AEC-Q101 qualification, and sub-1 mm height in the SMP package-enabling compact, automotive-grade protection where space and reliability are co-constrained.
Availability
TPSMP24AHM3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial CAN networks, and 24 V power rail protection requiring stable component supply and long-term lifecycle support.
Supply support for TPSMP24AHM3_A/H 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 TPSMP24AHM3_A/H belongs to Vishay's eSMP® PAR® TVS series, engineered specifically for high-power-density, AEC-Q101-compliant transient suppression in space- and thermally constrained automotive subsystems.
FAQ
What is the maximum clamping voltage of the TPSMP24AHM3_A/H under rated surge conditions?
The TPSMP24AHM3_A/H has a maximum clamping voltage (VC) of 33.2 V when subjected to its rated peak pulse current (IPPM) of 12 A using a 10/1000 µs waveform. This value is measured at TA = 25 °C with specified PCB mounting conditions (5.0 mm × 5.0 mm copper pads). The TPSMP24AHM3_A/H maintains this clamping performance across its full operating temperature range, supporting robust interface protection in demanding environments.
Is the TPSMP24AHM3_A/H suitable for automotive applications?
Yes, the TPSMP24AHM3_A/H is AEC-Q101 qualified and rated for junction temperatures up to 185 °C, making it suitable for under-hood and cabin automotive applications. It meets ISO 7637-2 surge immunity requirements and is constructed with halogen-free, RoHS-compliant materials. The TPSMP24AHM3_A/H is widely deployed in engine control units, ADAS sensor interfaces, and body electronics where high-reliability transient suppression is mandatory.
What does the "HM3_A/H" suffix indicate in TPSMP24AHM3_A/H?
The "HM3_A/H" suffix denotes the packaging and revision: "H" indicates the preferred package code (7-inch tape-and-reel, 3000 units per reel); "M3" specifies the halogen-free, RoHS-compliant, AEC-Q101-qualified molding compound; "A" is the revision code; and "/H" confirms the tape-and-reel delivery mode. This full suffix identifies the exact manufacturing and logistics configuration of the TPSMP24AHM3_A/H part supplied by Vishay.
How does the TPSMP24AHM3_A/H compare to standard SMA-package TVS diodes?
The TPSMP24AHM3_A/H uses the smaller SMP (DO-220AA) package-2.60 mm × 1.35 mm with 1.0 mm height-versus the SMA's 3.5 mm × 2.0 mm × 2.2 mm. This 60% smaller footprint and 55% lower profile allow denser layouts in modern automotive modules. Electrically, the TPSMP24AHM3_A/H matches SMAJ24A's 400 W PPPM but achieves lower clamping (33.2 V vs. 38.9 V) and superior thermal performance due to optimized die attach and passivation.
What is the reverse stand-off voltage (VWM) of the TPSMP24AHM3_A/H?
The reverse stand-off voltage (VWM) of the TPSMP24AHM3_A/H is 20.5 V, meaning it remains in high-impedance blocking mode for all reverse voltages ≤ 20.5 V at TA = 25 °C. This ensures no leakage or conduction during normal 24 V system operation while allowing margin for ripple and tolerance. The TPSMP24AHM3_A/H begins avalanche breakdown at minimum VBR = 22.8 V, providing clear separation between operating and clamping regions.
TPSMP24AHM3_A/H 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):
- 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)
TPSMP24AHM3_A/H FAQ
1.How can I place an order for TPSMP24AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP24AHM3_A/H 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 TPSMP24AHM3_A/H reliable?
The price and inventory of TPSMP24AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP24AHM3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMP24AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP24AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP24AHM3_A/H?
TPSMP24AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP24AHM3_A/H 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 TPSMP24AHM3_A/H?
For technical support, including TPSMP24AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP24AHM3_A/H requirements.
6.How does Aetrix verify that TPSMP24AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMP24AHM3_A/H 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 TPSMP24AHM3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMP24AHM3_A/H?
All TPSMP24AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP24AHM3_A/H, 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 TPSMP24AHM3_A/H part is unused and in its original packaging.
Return procedure for TPSMP24AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP24AHM3_A/H Tags
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