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Vishay General Semiconductor - Diodes Division TPSMP24HM3/84A
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- Part No.:
- TPSMP24HM3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP24HM3/84A.pdf
- Description:
- TVS DIODE 19.4VWM 34.7VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,700
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Product details
Overview
TPSMP24HM3/84A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, designed for high-reliability automotive and industrial circuit protection. It features a 21.6 V to 26.4 V breakdown voltage (VBR), 34.7 V clamping voltage (VC) at 11.5 A peak pulse current, 400 W peak pulse power rating, and AEC-Q101 qualification for under-hood electronics.
For engineers reviewing the TPSMP24HM3/84A datasheet, TPSMP24HM3/84A pinout, TPSMP24HM3/84A application, or TPSMP24HM3/84A equivalent, key selection criteria include unidirectional polarity, 19.4 V stand-off voltage (VWM), 1.0 μA max reverse leakage at VWM, 185 °C junction temperature capability, and MSL Level 1 moisture sensitivity.
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 and lightning-induced transients per IEC 61000-4-2 and ISO 7637-2. Its unidirectional configuration provides forward conduction path during overvoltage events while maintaining low leakage in normal operation.
The device operates across -65 °C to +185 °C junction temperature range and is rated for 40 A non-repetitive forward surge current (IFSM). Its DO-220AA package supports automated placement and meets UL 94 V-0 flammability requirements 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) | 21.6 V / 26.4 V - ensures reliable triggering above system operating voltage while avoiding false clamping |
| VWM | 19.4 V - maximum continuous reverse voltage before leakage exceeds 1.0 μA, suitable for 12 V/24 V automotive rails |
| VC @ IPPM | 34.7 V at 11.5 A - limits transient voltage to safe levels for downstream ICs and transistors |
| PPPM | 400 W - peak pulse power handling for 10/1000 μs waveform, critical for load dump and ISO 7637-2 Pulse 5a |
| TJ max | +185 °C - enables use in high-temperature engine bay environments without derating |
| Polarity | Unidirectional - provides forward-biased conduction path for negative transients on positive rails |
| MSL Level | Level 1 (260 °C peak reflow) - supports standard SMT assembly without dry pack or baking |
Pinout & Package
DO-220AA (SMP) package: ultra-low-profile surface-mount case with 1.0 mm typical height, cathode indicated by color band, matte tin-plated terminals, and 5.0 mm × 5.0 mm thermal pad layout per datasheet recommendation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry during clamping | Connected to protected line (e.g., 24 V supply rail); conducts when transient exceeds VBR |
| Cathode | Forward current exit / reference node | Connected to ground or lower-potential return path; color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Junction passivation | Reduces surface leakage and improves long-term stability under high humidity and bias conditions |
| Low profile (1.0 mm height) | Enables compact PCB layouts in space-constrained modules such as ADAS ECUs and body control units |
| Very fast response time | <1 ns turn-on ensures clamping before sensitive components experience damaging overvoltage |
| MSL Level 1 compliance | Eliminates pre-reflow baking and simplifies manufacturing for high-volume automotive production |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply lines in engine control units against load dump transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery rail and DC-DC input stage. Use Value: Limits transient voltage to ≤34.7 V, preventing damage to 36 V-rated regulators and microcontrollers. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD events in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor on signal lines interfacing with ADC inputs. Use Value: Maintains signal integrity with only 1.0 μA leakage at 19.4 V, minimizing offset error in precision measurement circuits. |
| Consumer Device USB Port Protection | Telecom Power Supply Input Protection |
Use Scenario: Safeguarding USB-C power delivery circuits in portable medical devices from connector hot-plug surges. IC Role / Device Role / Timing Role: Standoff-voltage-matched TVS on VBUS line upstream of buck controller. Use Value: Clamps 1 kV ESD pulses (IEC 61000-4-2) within 34.7 V, preserving USB PD negotiation logic. | Use Scenario: Guarding primary-side rectifier inputs in telecom AC/DC adapters exposed to lightning-induced surges. IC Role / Device Role / Timing Role: High-power TVS placed after bridge rectifier to absorb line-to-line transients. Use Value: Handles 400 W peak pulse energy without degradation, meeting ITU-T K.20 surge immunity requirements. |
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-E3/5T | DO-214AC (SMA) package; 24 V nominal VBR; 400 W PPPM; same VC (38.9 V), but 0.3 mm taller (2.3 mm vs. 1.0 mm) | Less suitable for ultra-thin modules; higher thermal resistance due to smaller pad area | Select when legacy SMA footprint exists and height constraint is relaxed |
| TPSMA6.8A-Q | Same DO-220AA package; lower VBR (6.45–7.14 V); 300 W PPPM; AEC-Q101 qualified | Designed for 5 V logic rail protection, not 24 V systems | Choose only for sub-12 V applications requiring identical form factor and automotive qualification |
Compared with SMAJ24A-E3/5T and TPSMA6.8A-Q, the TPSMP24HM3/84A delivers optimal combination of ultra-low profile (1.0 mm), 24 V system compatibility, and full AEC-Q101 validation-making it the preferred choice for next-generation automotive modules where board space and thermal performance are critical.
Availability
TPSMP24HM3/84A is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interface, and consumer USB-C protection applications requiring stable component supply and full traceability.
Supply support for TPSMP24HM3/84A 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 and automotive-grade qualification.
The TPSMP series belongs to Vishay's eSMP® family of high-power-density TVS diodes, engineered specifically for harsh-environment transient suppression in automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and thermal robustness are mandatory.
FAQ
What is the breakdown voltage tolerance for TPSMP24HM3/84A?
The TPSMP24HM3/84A has a specified breakdown voltage (VBR) range of 21.6 V to 26.4 V at 1.0 mA test current, corresponding to ±10 % tolerance around the nominal 24 V rating. This tolerance is confirmed in the Electrical Characteristics table of Vishay document 88471 and applies strictly to the TPSMP24A variant denoted by the "A" suffix in the part number.
Is TPSMP24HM3/84A suitable for bidirectional transient protection?
No, the TPSMP24HM3/84A is unidirectional only, as explicitly stated in the Features section of its datasheet. It clamps positive transients on the cathode side relative to anode and does not protect against reverse-polarity events. For bidirectional protection, a separate device such as the SMBJ24CA would be required-not the TPSMP24HM3/84A.
What is the maximum clamping voltage of TPSMP24HM3/84A under surge conditions?
The TPSMP24HM3/84A exhibits a maximum clamping voltage (VC) of 34.7 V at 11.5 A peak pulse current (IPPM) for a 10/1000 μs waveform. This value is measured per Figure 1 and Table on page 2 of Vishay document 88471 and defines the upper voltage limit imposed on protected circuitry during standardized surge events.
Does TPSMP24HM3/84A require special PCB layout considerations?
Yes-the TPSMP24HM3/84A requires 5.0 mm × 5.0 mm copper pads attached to each terminal for rated PPPM performance, as specified in Note (2) of the Maximum Ratings table. Smaller pads will reduce thermal dissipation and cause premature failure under repeated surge conditions. The DO-220AA outline drawing on page 4 confirms pad dimensions and cathode band orientation.
How does the HM3 suffix affect the specifications of TPSMP24HM3/84A?
The HM3 suffix indicates halogen-free, RoHS-compliant construction with JESD 201 Class 2 whisker resistance and AEC-Q101 qualification-identical to base TPSMP24A functionality. The "/84A" denotes 7" tape-and-reel packaging (3000 units), but does not alter electrical or thermal specs. All performance data in document 88471 apply directly to TPSMP24HM3/84A.
TPSMP24HM3/84A 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):
- 19.4V
- Voltage - Breakdown (Min):
- 21.6V
- Voltage - Clamping (Max) @ Ipp:
- 34.7V
- Current - Peak Pulse (10/1000µs):
- 11.5A
- 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)
TPSMP24HM3/84A FAQ
1.How can I place an order for TPSMP24HM3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP24HM3/84A 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 TPSMP24HM3/84A reliable?
The price and inventory of TPSMP24HM3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP24HM3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP24HM3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP24HM3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP24HM3/84A?
TPSMP24HM3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP24HM3/84A 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 TPSMP24HM3/84A?
For technical support, including TPSMP24HM3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP24HM3/84A requirements.
6.How does Aetrix verify that TPSMP24HM3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP24HM3/84A 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 TPSMP24HM3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP24HM3/84A?
All TPSMP24HM3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP24HM3/84A, 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 TPSMP24HM3/84A part is unused and in its original packaging.
Return procedure for TPSMP24HM3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP24HM3/84A Tags
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