My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMP24AHM3/84A
~~2.jpg)
- Part No.:
- TPSMP24AHM3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP24AHM3/84A.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,806
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMP24AHM3/84A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, designed for high-energy surge protection of sensitive electronics. It features a 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 with 10/1000 µs waveform - ideal for automotive power line and signal line protection.
For engineers reviewing the TPSMP24AHM3/84A datasheet, TPSMP24AHM3/84A pinout, TPSMP24AHM3/84A application, or TPSMP24AHM3/84A 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 moisture sensitivity for robust reflow compatibility.
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, lightning-induced transients, and load dump events. Its unidirectional configuration provides forward conduction capability while clamping reverse surges above VBR.
The device operates across -65 °C to +185 °C junction temperature range and meets JESD201 Class 2 whisker resistance. Its DO-220AA package supports automated placement and delivers 400 W peak pulse power dissipation when mounted on 5.0 mm × 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 triggering above system operating voltage (20.5 V stand-off) without false clamping |
| VC @ IPPM | 33.2 V at 12.0 A - limits protected circuit voltage during 10/1000 µs surge to safe levels for 24 V automotive ICs |
| PPPM | 400 W - sustains high-energy transients common in 12 V/24 V vehicle power networks |
| IFSM | 40 A - withstands 10 ms half-sine surge without degradation, critical for alternator load dump immunity |
| TJ max | +185 °C - enables operation in under-hood environments and supports AEC-Q101 automotive qualification |
| VWM | 20.5 V - maintains stable reverse blocking up to rated system voltage with only 1.0 µA leakage |
| Package | DO-220AA (SMP) - ultra-low profile (1.0 mm height), halogen-free, RoHS-compliant, and MSL Level 1 |
Pinout & Package
TPSMP24AHM3/84A is a two-terminal unidirectional TVS diode in DO-220AA (SMP) surface-mount package. The cathode is marked by a color band on the body; the anode and cathode terminals are symmetrically arranged for PCB layout flexibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path / low-impedance return during surge | Connected to ground or low-side reference; carries full surge current during clamping |
| Cathode | Protected line connection / high-side transient input | Connected to signal/power line being protected; voltage referenced to anode during clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
| Junction passivation | Enhances long-term stability and reduces parameter drift under thermal stress and high-humidity conditions |
| MSL Level 1 (260 °C peak) | Enables single-pass lead-free reflow without popcorn effect or delamination risk |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for downstream ICs |
| 1.0 mm typical height | Reduces board space and profile constraints in compact modules such as ADAS ECUs and battery management systems |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 24 V supply rails in engine control units (ECUs) against ISO 7637-2 Pulse 5a (load dump) and ESD events. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery rail and DC-DC converter input. Use Value: Clamps transients to ≤33.2 V within nanoseconds, preventing overvoltage damage to 36 V-rated regulators and microcontrollers. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor on 4–20 mA or 0–10 V signal lines exposed to relay switching noise. Use Value: Limits induced surges to <33.2 V while maintaining <1.0 µA leakage at 20.5 V, preserving signal integrity and ADC accuracy. |
| Consumer Power Adapter Input | Telecom Equipment Surge Protection |
|
Use Scenario: Input-stage protection for universal AC/DC adapters handling 12–24 V output with wide-input buck converters. IC Role / Device Role / Timing Role: Primary surge clamp on secondary-side DC bus before point-of-load regulation. Use Value: Absorbs 400 W pulses without failure, meeting IEC 61000-4-5 Level 3 requirements with minimal footprint. |
Use Scenario: Ethernet port or RS-485 interface protection in outdoor telecom base stations subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS on data line pairs referenced to local ground plane. Use Value: Fast response (<1 ns) and low VC ensure signal integrity retention during 1 kV/0.5 kA transients per IEC 61000-4-5. |
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 | DO-214AC (SMA) package; 38.9 V clamping at 10.3 A; 400 W rating; same VBR range but higher VC | Larger footprint (2.5 mm height); lower thermal performance on small pads due to higher RθJA | Choose SMAJ24A only if DO-220AA assembly infrastructure is unavailable; verify pad thermal relief for sustained surge duty. |
| TPSMD24A | DO-214AB (SMC) package; 38.9 V clamping at 10.3 A; 1500 W rating; significantly larger size and higher surge capacity | Designed for primary-side AC/DC or high-power motor drive protection; not suitable for space-constrained automotive modules | Use TPSMD24A where >1000 W surge handling is required; avoid in TPSMP24AHM3/84A-replaced designs due to incompatible footprint and layout change. |
Compared with SMAJ24A and TPSMD24A, the TPSMP24AHM3/84A offers superior power density (400 W in 1.0 mm height), AEC-Q101 qualification, and MSL Level 1 compatibility - making it optimal for automotive and portable industrial electronics where board space, reliability, and reflow robustness are critical.
Availability
TPSMP24AHM3/84A is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, consumer power adapters, and telecom surge protection requiring stable component supply, consistent AEC-Q101 compliance, and high-volume tape-and-reel logistics.
Supply support for TPSMP24AHM3/84A 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 diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability, power efficiency, and automotive-grade validation.
The TPSMP series belongs to Vishay's eSMP® family of high-power-density TVS diodes engineered specifically for AEC-Q101-compliant automotive and harsh-environment industrial surge protection.
FAQ
What is the clamping voltage of TPSMP24AHM3/84A and how is it measured?
The TPSMP24AHM3/84A has a maximum clamping voltage (VC) of 33.2 V at 12.0 A peak pulse current (IPPM) using a 10/1000 µs standard surge waveform. This value is measured per ANSI/IEEE C62.35 and reflects the voltage seen by downstream circuitry during worst-case transient events - critical for ensuring compatibility with 36 V-rated ICs in 24 V systems. The TPSMP24AHM3/84A achieves this with low incremental surge resistance.
Is TPSMP24AHM3/84A suitable for automotive applications?
Yes, TPSMP24AHM3/84A is AEC-Q101 qualified and rated for operation from -65 °C to +185 °C junction temperature, making it fully compliant for under-hood and powertrain applications. Its DO-220AA package meets MSL Level 1, and its 400 W peak pulse power rating addresses ISO 7637-2 Pulse 5a load dump requirements - all confirmed in Vishay Document Number 88471 for the TPSMP24AHM3/84A.
What does the "HM3/84A" suffix indicate in TPSMP24AHM3/84A?
The "HM3" suffix denotes halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance and AEC-Q101 qualification. The "/84A" specifies the packaging: 7-inch diameter plastic tape-and-reel with 3000 units per reel - a standard logistics format for SMT assembly lines. This coding is defined in the Ordering Information section of the TPSMP24AHM3/84A datasheet.
How does TPSMP24AHM3/84A compare to bidirectional TVS diodes?
TPSMP24AHM3/84A is unidirectional and conducts forward current like a rectifier, enabling use in DC circuits where polarity is fixed - unlike bidirectional devices that clamp both polarities. Its 20.5 V stand-off voltage (VWM) and 22.8–25.2 V breakdown allow precise coordination with 24 V system rails, while offering lower leakage (<1.0 µA) and tighter VBR tolerance than comparable bidirectional parts - essential for stable biasing in sensor interfaces.
What PCB layout guidance applies to TPSMP24AHM3/84A for optimal surge performance?
Vishay specifies mounting TPSMP24AHM3/84A on 5.0 mm × 5.0 mm copper pads per terminal to achieve rated 400 W peak pulse power. Minimize trace inductance by placing the device directly across the protected line and ground with short, wide traces. Maintain clearance from heat sources, and observe the DO-220AA outline (0.142" × 0.126") and 0.030" cathode band position per the package drawing in the TPSMP24AHM3/84A datasheet.
TPSMP24AHM3/84A 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):
- 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)
TPSMP24AHM3/84A FAQ
1.How can I place an order for TPSMP24AHM3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP24AHM3/84A 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 TPSMP24AHM3/84A reliable?
The price and inventory of TPSMP24AHM3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP24AHM3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP24AHM3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP24AHM3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP24AHM3/84A?
TPSMP24AHM3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP24AHM3/84A 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 TPSMP24AHM3/84A?
For technical support, including TPSMP24AHM3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP24AHM3/84A requirements.
6.How does Aetrix verify that TPSMP24AHM3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP24AHM3/84A 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 TPSMP24AHM3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP24AHM3/84A?
All TPSMP24AHM3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP24AHM3/84A, 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 TPSMP24AHM3/84A part is unused and in its original packaging.
Return procedure for TPSMP24AHM3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP24AHM3/84A Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
