My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMP15A-E3/84A
~~2.jpg)
- Part No.:
- TPSMP15A-E3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP15A-E3/84A.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,372
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMP15A-E3/84A from Vishay General Semiconductor is a unidirectional transient voltage suppressor diode in DO-220AA (SMP) package, designed for automotive-grade ESD and surge protection. It features a breakdown voltage of 14.3–15.8 V at 1 mA, clamps to ≤21.2 V at 18.9 A (10/1000 µs), delivers 400 W peak pulse power, and operates from –65 °C to +185 °C junction temperature - used in sensor signal line protection in ADAS modules.
For engineers reviewing the TPSMP15A-E3/84A datasheet, TPSMP15A-E3/84A pinout, TPSMP15A-E3/84A application, or TPSMP15A-E3/84A equivalent, key selection criteria include unidirectional clamping behavior, 12.8 V stand-off voltage, 1.0 µA max reverse leakage at 12.8 V, AEC-Q101 qualification (via HE3 suffix variant), and DO-220AA mechanical compatibility with high-density PCB layouts.
Technical Context
The TPSMP15A-E3/84A functions as a silicon avalanche diode optimized for fast transient suppression in automotive electronics. Its patented PAR oxide passivated chip enables low incremental surge resistance (≤0.2 Ω typical) and sub-nanosecond response time, critical for protecting CAN, LIN, and sensor interfaces against ISO 7637-2 and ISO 16750-2 pulses.
It operates exclusively in unidirectional mode with cathode band marking, requires no bias circuitry, and maintains stable clamping performance across –65 °C to +185 °C. The device is rated for 40 A non-repetitive forward surge current and meets J-STD-020C MSL Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage V(BR) | 14.3–15.8 V at 1 mA - defines minimum voltage at which avalanche conduction begins, ensuring reliable triggering above system operating voltage |
| Stand-off Voltage VWM | 12.8 V - maximum continuous reverse voltage before significant leakage; sets safe margin below 12 V automotive supply rails |
| Clamping Voltage VC | ≤21.2 V at 18.9 A (10/1000 µs) - limits protected circuit voltage during surge, preserving downstream ICs like microcontrollers or transceivers |
| Peak Pulse Power PPPM | 400 W - energy-handling capacity for standardized 10/1000 µs transients per IEC 61000-4-5 |
| Reverse Leakage IR | ≤1.0 µA at 12.8 V and 25 °C - ensures negligible standby current drain in always-on vehicle modules |
| Junction Temperature Range | –65 °C to +185 °C - supports under-hood deployment in engine control units and body electronics |
Pinout & Package
DO-220AA (SMP) surface-mount package: ultra-low profile (1.0 mm typical height), matte tin-plated leads, UL-94V-0 epoxy case, cathode denoted by color band. Designed for automated placement and reflow soldering (260 °C, 40 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to protected line (e.g., sensor output); conducts during positive transients when cathode is biased higher |
| Cathode | Avalanche conduction node / clamp reference | Connected to ground or lower-potential rail; initiates clamping when reverse voltage exceeds V(BR) |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR oxide passivation | Enables stable, repeatable avalanche characteristics over lifetime and temperature, critical for AEC-Q101 compliance |
| Low incremental surge resistance | ≤0.2 Ω typical - minimizes voltage overshoot during fast-rising transients (e.g., load dump, inductive kick) |
| MSL Level 1 rating | Zero floor life limitation - allows indefinite storage and use without baking prior to reflow |
| RoHS/WEEE compliant | Meets EU directives 2002/95/EC and 2002/96/EC - supports global automotive supply chain requirements |
Applications
| Automotive Sensor Protection | CAN Bus Line Protection |
|---|---|
Use Scenario: Protecting analog output lines of wheel speed, pressure, or temperature sensors exposed to battery transients and ESD in chassis modules. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between sensor output and ground, clamping surges before they reach ADC input or signal conditioner. Use Value: Prevents sensor signal corruption and microcontroller reset events during ISO 7637-2 Pulse 1/2a/5a events due to its 400 W PPPM and ≤21.2 V clamping. | Use Scenario: Safeguarding CAN_H and CAN_L lines in gateway ECUs against coupling-induced surges and electrostatic discharge. IC Role / Device Role / Timing Role: Bidirectional protection not applicable; TPSMP15A-E3/84A used on single-ended nodes (e.g., CAN_STB or bias rails), not differential pairs. Use Value: Maintains CAN signal integrity by limiting voltage excursions to ≤21.2 V while adding <0.5 pF junction capacitance at zero bias - negligible impact on 1 Mbps bus timing. |
| Body Control Module Inputs | Infotainment Interface Protection |
Use Scenario: Shielding switch inputs, LED driver feedback paths, and LIN bus pins in door modules and seat controllers from cable discharge events. IC Role / Device Role / Timing Role: Standoff-rated TVS (12.8 V) placed directly at connector entry point, shunting transients to chassis ground before reaching MCU GPIOs. Use Value: Eliminates false wake-up triggers and latch-up failures thanks to 1.0 µA max leakage and 185 °C TJ max rating for under-dash mounting. | Use Scenario: Securing USB, audio, or display interface lines in head units against hot-plug ESD and power rail coupling in shared PCB areas. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp on VBUS or AVDD rails, referenced to system ground with cathode connection. Use Value: Enables robust 100% yield in production ESD testing (IEC 61000-4-2 ±8 kV contact) without degrading signal rise/fall times. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A-E3/5AT | DO-214AC (SMA) package; 15 V nominal V(BR); 400 W PPPM; same 12.8 V VWM but 22.5 V VC at 17.4 A | Larger footprint (4.5 × 2.7 mm vs. 2.67 × 1.15 mm); less suitable for ultra-dense automotive modules | Select when board space permits and legacy SMA footprint reuse is required |
| TPSMAJ15A-QH | AEC-Q101 qualified; DO-214AC; identical electrical specs but automotive-specific screening and traceability | Same package size; certified for full automotive lifecycle including PPAP documentation | Prefer for Tier-1 OEM programs requiring full ASIL-aware component qualification |
Compared with TPSMP15A-E3/84A, SMAJ15A-E3/5AT offers equivalent surge rating but sacrifices 55% board area efficiency, while TPSMAJ15A-QH matches automotive compliance rigor but lacks the ultra-low profile needed for stacked PCB assemblies in compact ECUs.
Availability
TPSMP15A-E3/84A is available at Aetrix Electronics and suitable for automotive sensor protection, body control module inputs, and infotainment interface protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPSMP15A-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 and passive components, specializing in high-reliability devices for automotive, industrial, and computing markets.
The TPSMP series was engineered specifically for high-power-density transient suppression in next-generation automotive electronics, targeting AEC-Q101 compliance, under-hood thermal resilience, and automated SMT assembly compatibility.
FAQ
What is the exact breakdown voltage range of the TPSMP15A-E3/84A?
The TPSMP15A-E3/84A has a specified breakdown voltage V(BR) range of 14.3 V to 15.8 V at a test current IT of 1 mA, measured per ANSI/IEEE C62.35 standards. This range ensures consistent avalanche initiation across manufacturing lots and temperature extremes, and is verified per the Vishay document 88937. The TPSMP15A-E3/84A's tight V(BR) tolerance supports precise overvoltage protection design in 12 V automotive systems.
Is the TPSMP15A-E3/84A suitable for bidirectional transient suppression?
No, the TPSMP15A-E3/84A is a unidirectional TVS diode only, with polarity marked by a cathode band. It protects against reverse-biased transients (anode-to-cathode) and conducts forward current during positive surges relative to ground. For bidirectional protection, two TPSMP15A-E3/84A devices must be used in series opposition or a dedicated bidirectional part like SMBJ15CA should be selected. The TPSMP15A-E3/84A datasheet explicitly states "Unidirection only" in its features.
What is the maximum clamping voltage of the TPSMP15A-E3/84A under standard surge conditions?
The TPSMP15A-E3/84A clamps to a maximum of 21.2 V when subjected to an 18.9 A peak pulse current with a 10/1000 µs waveform - the industry-standard test condition defined in IEC 61000-4-5. This value is guaranteed across the full operating temperature range and is measured with the device mounted on a PCB using 5.0 × 5.0 mm copper pads per terminal, as specified in Vishay document 88937. The TPSMP15A-E3/84A's low clamping voltage preserves voltage margins for 3.3 V and 5 V logic interfaces.
Does the TPSMP15A-E3/84A meet AEC-Q101 reliability requirements?
The TPSMP15A-E3/84A carries the E3 suffix indicating commercial grade; however, the HE3 suffix variant (e.g., TPSMP15A-HE3/84A) is explicitly qualified to AEC-Q101. While the TPSMP15A-E3/84A shares the same die and construction, only HE3-marked units undergo full automotive stress testing and receive PPAP documentation. For production automotive applications, the TPSMP15A-E3/84A is acceptable for non-safety-critical subsystems where full AEC-Q101 certification is not mandated.
What is the junction capacitance of the TPSMP15A-E3/84A at zero bias?
The TPSMP15A-E3/84A exhibits a typical junction capacitance of approximately 120 pF at zero bias and 1 MHz, as shown in Figure 4 of Vishay document 88937. This value increases slightly at higher reverse voltages - e.g., ~150 pF at the 12.8 V stand-off voltage. The TPSMP15A-E3/84A's capacitance is well-suited for low-speed signal lines (e.g., LIN, analog sensors) but not recommended for >10 Mbps high-speed interfaces without layout mitigation.
TPSMP15A-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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 18.9A
- 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)
TPSMP15A-E3/84A FAQ
1.How can I place an order for TPSMP15A-E3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP15A-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 TPSMP15A-E3/84A reliable?
The price and inventory of TPSMP15A-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 TPSMP15A-E3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP15A-E3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP15A-E3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP15A-E3/84A?
TPSMP15A-E3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP15A-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 TPSMP15A-E3/84A?
For technical support, including TPSMP15A-E3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP15A-E3/84A requirements.
6.How does Aetrix verify that TPSMP15A-E3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP15A-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 TPSMP15A-E3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP15A-E3/84A?
All TPSMP15A-E3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP15A-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 TPSMP15A-E3/84A part is unused and in its original packaging.
Return procedure for TPSMP15A-E3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP15A-E3/84A 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 …
