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Vishay General Semiconductor - Diodes Division TPSMP24-E3/84A
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- Part No.:
- TPSMP24-E3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP24-E3/84A.pdf
- Description:
- TVS DIODE 19.4VWM 34.7VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,898
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Product details
Overview
TPSMP24-E3/84A from Vishay General Semiconductor is a unidirectional transient voltage suppressor diode in DO-220AA (SMP) package, designed for automotive-grade surge protection. It features a breakdown voltage range of 21.6 V to 26.4 V at 1 mA test current, 34.7 V clamping voltage at 11.5 A peak pulse current, and 400 W peak pulse power dissipation with 10/1000 µs waveform - deployed in sensor signal line and ECU power rail protection.
For engineers reviewing the TPSMP24-E3/84A datasheet, TPSMP24-E3/84A pinout, TPSMP24-E3/84A application, or TPSMP24-E3/84A equivalent, key selection criteria include unidirectional polarity, 19.4 V stand-off voltage, 1.0 µA max reverse leakage at 25 °C, -65 °C to +185 °C operating junction temperature, and RoHS/WEEE compliance for automotive electronics design.
Technical Context
The TPSMP24-E3/84A uses patented PAR oxide passivated chip construction to achieve low incremental surge resistance and fast response time under transient events. Its unidirectional configuration enables precise clamping on positive-going surges while maintaining low leakage below 19.4 V stand-off voltage.
Rated for MSL Level 1 per J-STD-020C and qualified to AEC-Q101 when marked HE3, the device operates up to 185 °C junction temperature and supports automated placement due to its 1.0 mm typical height in DO-220AA package - optimized for space-constrained automotive PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage V(BR) | 21.6 V min / 26.4 V max at 1 mA - defines minimum voltage at which clamping initiates under surge conditions |
| Stand-off Voltage VWM | 19.4 V - maximum continuous reverse voltage before significant leakage begins |
| Clamping Voltage VC | 34.7 V at 11.5 A IPPM - peak voltage seen by protected circuit during 10/1000 µs transient |
| Peak Pulse Power PPPM | 400 W - surge energy handling capability with 10/1000 µs waveform, derated above 25 °C ambient |
| Reverse Leakage IR | 1.0 µA max at VWM - ensures minimal power loss and signal integrity in standby state |
| Junction Temperature Range | -65 °C to +185 °C - supports operation in under-hood automotive environments |
Pinout & Package
Package: DO-220AA (SMP), surface-mount, low-profile (1.0 mm typical height), matte tin-plated terminals, cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to ground or lower-potential node in unidirectional TVS configuration |
| Cathode | Current exit terminal during forward conduction; clamping node during reverse surge | Connected to protected line; clamps transients to ≤34.7 V when voltage exceeds 19.4 V |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR oxide passivation | Enables stable breakdown characteristics and long-term reliability under repeated surge stress |
| Low profile (1.0 mm height) | Reduces board space and mechanical interference in compact automotive modules |
| MSL Level 1 rating | Allows unlimited floor life and reflow compatibility without dry-pack requirements |
| AEC-Q101 qualification (E3 suffix = commercial grade) | Meets automotive stress test requirements for temperature cycling, HTRB, and surge endurance |
| UL-94V-0 epoxy case | Provides flame-retardant housing suitable for safety-critical vehicle subsystems |
Applications
| Automotive Sensor Protection | ECU Power Rail Clamping |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between sensor output and ground to clamp positive transients. Use Value: Limits voltage excursion to ≤34.7 V during 10/1000 µs surges, preserving ADC input integrity and preventing latch-up in downstream signal conditioning ICs. |
Use Scenario: Safeguarding 12 V supply inputs of engine control units against battery reversal and alternator load dump spikes. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input rail and chassis ground to absorb high-energy transients. Use Value: Handles 400 W peak pulse power without degradation, maintaining system uptime during harsh automotive electrical events. |
| Infotainment Interface Lines | Body Control Module I/O Protection |
Use Scenario: Shielding CAN, LIN, or USB data lines in head units and display modules from ESD and coupled transients. IC Role / Device Role / Timing Role: Low-capacitance unidirectional suppressor placed inline with signal path to ground. Use Value: 1.0 µA leakage at 19.4 V ensures minimal impact on signal rise/fall times and bus timing margins. |
Use Scenario: Guarding GPIO and switch-input circuits in door modules, lighting controllers, and seat control units. IC Role / Device Role / Timing Role: Transient absorber tied between external switch contact and microcontroller input pin. Use Value: Withstands 40 A non-repetitive forward surge, enabling robust immunity to inductive kickback from relay and motor loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-E3/5A | DO-214AC package; 24 V nominal V(BR); 38.9 V VC at 10.3 A; 400 W PPPM | Larger footprint (2.79 mm height); higher thermal mass but less suitable for ultra-thin modules | Preferred where board height >1.2 mm is acceptable and legacy SMA footprint exists |
| TPSMP24A-E3/84A | Narrower V(BR) tolerance (22.8–25.2 V); 33.2 V VC at 12.0 A; same DO-220AA package | Tighter regulation improves consistency in precision clamping applications | Best choice when tighter breakdown voltage distribution is required for margin-critical designs |
Compared with SMAJ24A-E3/5A and TPSMP24A-E3/84A, the TPSMP24-E3/84A offers broader V(BR) tolerance for cost-sensitive automotive applications while retaining identical package, surge rating, and thermal performance - making it optimal for general-purpose ECU and sensor protection where absolute voltage precision is secondary to reliability and footprint.
Availability
TPSMP24-E3/84A is available at Aetrix Electronics and suitable for automotive sensor interfaces, ECU power rails, infotainment data lines, and body control module I/O requiring stable component supply and AEC-compliant surge protection.
Supply support for TPSMP24-E3/84A 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, and passive components for automotive, industrial, and computing markets.
The TPSMP series is engineered specifically for automotive transient suppression - delivering high-power density, AEC-Q101 readiness, and low-profile packaging to meet stringent space, thermal, and reliability demands in modern vehicle electronics.
FAQ
What is the clamping voltage of the TPSMP24-E3/84A under standard 10/1000 µs surge conditions?
The TPSMP24-E3/84A has a maximum clamping voltage (VC) of 34.7 V at 11.5 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per JEDEC standards and ensures protected circuits remain within safe operating limits during automotive-level transients such as ISO 7637-2 Pulse 1 and Pulse 2a.
Is the TPSMP24-E3/84A AEC-Q101 qualified?
The TPSMP24-E3/84A carries the E3 suffix, indicating commercial-grade qualification. While it shares the same DO-220AA package and electrical specs as AEC-Q101-qualified variants (marked HE3), the E3 version itself is not AEC-Q101 certified. For automotive production, use TPSMP24HE3/84A or confirm qualification status via Vishay's official documentation for TPSMP24-E3/84A.
What is the standoff voltage (VWM) and why does it matter for TPSMP24-E3/84A placement?
The TPSMP24-E3/84A has a standoff voltage (VWM) of 19.4 V, meaning it remains non-conductive up to this DC or RMS voltage level. This allows safe integration on 12 V automotive rails without leakage-induced power loss or false triggering, while still providing robust clamping above that threshold during surge events.
Can TPSMP24-E3/84A be used in bidirectional configurations?
No - the TPSMP24-E3/84A is unidirectional only, as confirmed in Vishay's datasheet features and electrical specifications. It conducts only in reverse bias during clamping and must be oriented with cathode toward the protected line. For bidirectional protection, select a symmetric TVS like SMAJ24CA or consult Vishay's bidirectional TPSMP variants.
What is the thermal derating behavior of TPSMP24-E3/84A above 25 °C ambient?
The TPSMP24-E3/84A follows Vishay's standard derating curve (Fig. 2): peak pulse power drops linearly from 400 W at 25 °C to zero at ~175 °C ambient. At 100 °C, it retains approximately 60 % of rated PPPM. Derating applies to both single-pulse and repetitive surge conditions and must be factored into layout using 5.0 × 5.0 mm copper pads per terminal.
TPSMP24-E3/84A 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-220AA (SMP)
TPSMP24-E3/84A FAQ
1.How can I place an order for TPSMP24-E3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP24-E3/84A 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 TPSMP24-E3/84A reliable?
The price and inventory of TPSMP24-E3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP24-E3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP24-E3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP24-E3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP24-E3/84A?
TPSMP24-E3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP24-E3/84A 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 TPSMP24-E3/84A?
For technical support, including TPSMP24-E3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP24-E3/84A requirements.
6.How does Aetrix verify that TPSMP24-E3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP24-E3/84A 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 TPSMP24-E3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP24-E3/84A?
All TPSMP24-E3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP24-E3/84A, 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 TPSMP24-E3/84A part is unused and in its original packaging.
Return procedure for TPSMP24-E3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP24-E3/84A Tags
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