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Vishay General Semiconductor - Diodes Division TPSMP27-E3/84A
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- Part No.:
- TPSMP27-E3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP27-E3/84A.pdf
- Description:
- TVS DIODE 21.8VWM 39.1VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,009
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Product details
Overview
TPSMP27-E3/84A from Vishay General Semiconductor is a unidirectional transient voltage suppressor diode in DO-220AA (SMP) package, designed for automotive-grade surge protection with 27 V breakdown voltage (VBR = 24.3–29.7 V), 400 W peak pulse power (10/1000 µs), and 10.2 A peak pulse current (IPPM). It protects signal lines and ICs in engine control units, body electronics, and sensor interfaces.
For engineers reviewing the TPSMP27-E3/84A datasheet, TPSMP27-E3/84A pinout, TPSMP27-E3/84A application, or TPSMP27-E3/84A equivalent, key selection criteria include clamping voltage (VC = 39.1 V at IPPM), low profile (1.0 mm height), AEC-Q101 qualification eligibility (E3 suffix denotes commercial grade), and MSL Level 1 moisture sensitivity.
Technical Context
The TPSMP27-E3/84A uses patented PAR oxide passivated chip construction to achieve low incremental surge resistance and excellent clamping capability. Its unidirectional configuration enables precise reverse-biased overvoltage protection in DC-biased signal paths.
It operates across -65 °C to +185 °C junction temperature range and meets RoHS 2002/95/EC and WEEE 2002/96/EC. The device is rated for 40 A non-repetitive forward surge current (IFSM) and exhibits 0.100 %/°C temperature coefficient of VBR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 24.3 V / 29.7 V - defines minimum and maximum guaranteed breakdown threshold at 10 mA test current |
| VC @ IPPM | 39.1 V - clamping voltage during 10/1000 µs surge, limiting protected circuit stress |
| PPPM | 400 W - peak pulse power handling capacity under standardized 10/1000 µs waveform |
| IPPM | 10.2 A - maximum non-repetitive surge current the device safely clamps |
| VWM | 21.8 V - maximum continuous reverse operating voltage before leakage rises significantly |
| IR @ VWM | 1.0 µA - reverse leakage at stand-off voltage, ensuring minimal standby power loss |
| TJ max | +185 °C - maximum junction temperature enabling 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 | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during positive surges when used in unidirectional configuration |
| Cathode | Reverse-biased clamping terminal | Connected to higher-potential side (e.g., VCC rail); initiates avalanche conduction during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR oxide passivation | Enables stable, repeatable avalanche performance and long-term reliability under repeated surge stress |
| MSL Level 1 rating | Allows unlimited floor life and reflow compatibility without dry-pack or baking requirements |
| Low profile (1.0 mm height) | Supports high-density PCB layouts and automated placement in space-constrained automotive modules |
| UL-94V-0 epoxy case | Meets flammability safety standards for use in enclosed vehicle electronic assemblies |
| 10/1000 µs waveform compliance | Validated against industry-standard surge immunity test profiles per ANSI/IEEE C62.35 |
Applications
| Engine Control Unit (ECU) Input Protection | Automotive Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting analog input pins of microcontrollers in engine management systems exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between sensor signal line and ground, clamping reverse transients while allowing normal DC bias. Use Value: Limits transient voltage to ≤39.1 V, preventing latch-up or damage to 5 V or 3.3 V ADC inputs in harsh 12 V/24 V automotive environments. |
Use Scenario: Safeguarding LIN bus or analog output lines of pressure, temperature, or position sensors mounted near motors or solenoids. IC Role / Device Role / Timing Role: Standoff protection component on sensor output path, absorbing ESD and coupled noise without affecting signal integrity. Use Value: Maintains <1.0 µA leakage at 21.8 V, preserving sensor accuracy; clamps 10.2 A surges within 1 ns response time. |
| Body Control Module (BCM) Power Rail Clamp | Infotainment System USB/UART Interface Protection |
Use Scenario: Secondary overvoltage clamp on 5 V or 3.3 V internal supply rails downstream of primary regulators in BCMs. IC Role / Device Role / Timing Role: Fast-response shunt protector that activates only during abnormal overvoltage events, not during normal regulation. Use Value: Withstands 400 W pulses and operates up to +185 °C, supporting under-dash mounting where ambient temperatures exceed 105 °C. |
Use Scenario: ESD and surge protection for low-speed serial interfaces (e.g., UART debug lines or USB D+/D−) in head units and display modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between data line and local ground, suppressing ±8 kV contact ESD per IEC 61000-4-2. Use Value: Achieves 39.1 V clamping at 10.2 A, keeping interface ICs within safe operating area during fast transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28A | Higher VBR (25.2–29.0 V), same DO-214AC package, 400 W PPPM, but no AEC-Q101 qualification path | Used in industrial/commercial power supplies; lacks automotive qualification documentation | Select SMAJ28A only if AEC-Q101 compliance is not required and DO-214AC footprint is preferred |
| TPSMP27A-E3/84A | Enhanced variant: tighter VBR (25.7–28.4 V), lower VC (37.5 V), same package and PPPM | Preferred for next-gen designs requiring improved clamping margin and reduced voltage overshoot | Choose TPSMP27A-E3/84A when tighter parametric control and lower clamping are critical for sensitive receivers |
Compared with SMAJ28A and TPSMP27A-E3/84A, the TPSMP27-E3/84A offers broader VBR tolerance and established automotive qualification readiness, making it suitable for cost-sensitive legacy automotive platforms where tighter specs are unnecessary.
Availability
TPSMP27-E3/84A is available at Aetrix Electronics and suitable for automotive electronics, engine control units, and sensor interface protection requiring stable component supply and traceable sourcing.
Supply support for TPSMP27-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 was engineered specifically for high-power-density, surface-mount transient suppression in automotive electronics, balancing low profile, high surge capability, and AEC-Q101 qualification readiness.
FAQ
What is the breakdown voltage range of the TPSMP27-E3/84A?
The TPSMP27-E3/84A has a guaranteed breakdown voltage (VBR) range of 24.3 V to 29.7 V at 10 mA test current, measured per ANSI/IEEE C62.35. This range reflects manufacturing tolerances and ensures reliable triggering across temperature and unit-to-unit variation. The TPSMP27-E3/84A maintains this specification under standard test conditions defined in Vishay Document Number 88937.
Is the TPSMP27-E3/84A qualified for automotive applications?
The TPSMP27-E3/84A carries the E3 suffix indicating commercial grade, but its DO-220AA package, 185 °C max junction temperature, MSL Level 1 rating, and design heritage align with AEC-Q101 stress test requirements. While not pre-certified, the TPSMP27-E3/84A is widely deployed in automotive ECUs and sensor modules where full qualification is pursued at system level. The TPSMP27A-E3/84A variant is explicitly AEC-Q101 qualified.
What does the "/84A" in TPSMP27-E3/84A indicate?
The "/84A" suffix in TPSMP27-E3/84A specifies the packaging format: 7-inch diameter plastic tape and reel, with a base quantity of 3000 units. This is confirmed in Vishay's ordering information table (Document Number 88937, page 3). The "E3" denotes commercial-grade temperature rating and plating specification, distinct from HE3 (high-reliability/AEC-Q101).
How does the clamping voltage of the TPSMP27-E3/84A compare to its breakdown voltage?
The TPSMP27-E3/84A clamps at 39.1 V when subjected to its rated 10.2 A peak pulse current (10/1000 µs waveform), which is approximately 1.4× its nominal 27 V breakdown rating. This margin ensures protected circuits remain below absolute maximum ratings during surge events. The TPSMP27-E3/84A achieves this with low incremental surge resistance enabled by its PAR oxide passivated chip.
Can the TPSMP27-E3/84A be used in bidirectional configurations?
No - the TPSMP27-E3/84A is strictly unidirectional, as stated in Vishay's features list. It conducts only in reverse bias above VBR and blocks forward current beyond its specified VF (2.5 V at 25 A). For bidirectional protection, a pair of TPSMP27-E3/84A devices must be used in series opposition, or a dedicated bidirectional TVS such as TPSMD27 must be selected instead.
TPSMP27-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):
- 21.8V
- Voltage - Breakdown (Min):
- 24.3V
- Voltage - Clamping (Max) @ Ipp:
- 39.1V
- Current - Peak Pulse (10/1000µs):
- 10.2A
- 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)
TPSMP27-E3/84A FAQ
1.How can I place an order for TPSMP27-E3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP27-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 TPSMP27-E3/84A reliable?
The price and inventory of TPSMP27-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 TPSMP27-E3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP27-E3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP27-E3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP27-E3/84A?
TPSMP27-E3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP27-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 TPSMP27-E3/84A?
For technical support, including TPSMP27-E3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP27-E3/84A requirements.
6.How does Aetrix verify that TPSMP27-E3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP27-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 TPSMP27-E3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP27-E3/84A?
All TPSMP27-E3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP27-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 TPSMP27-E3/84A part is unused and in its original packaging.
Return procedure for TPSMP27-E3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP27-E3/84A Tags
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