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Vishay General Semiconductor - Diodes Division TPSMP36A-E3/84A
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- Part No.:
- TPSMP36A-E3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP36A-E3/84A.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,075
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Product details
Overview
TPSMP36A-E3/84A from Vishay General Semiconductor is a unidirectional transient voltage suppressor diode in DO-220AA (SMP) package, designed for automotive-grade overvoltage protection. It features a breakdown voltage range of 34.2 V to 37.8 V at 1 mA test current, 1.0 W steady-state power dissipation, 40 A peak forward surge current, and clamps up to 49.9 V at 8.0 A 10/1000 µs pulse - deployed in sensor signal line and ECU power rail protection.
For engineers reviewing the TPSMP36A-E3/84A datasheet, TPSMP36A-E3/84A pinout, TPSMP36A-E3/84A application, or TPSMP36A-E3/84A equivalent, key selection criteria include clamping voltage under 50 V, unidirectional polarity with cathode band marking, DO-220AA footprint compatibility, AEC-Q101 qualification status, and 185 °C maximum junction temperature for under-hood automotive use.
Technical Context
This device operates as a silicon avalanche diode optimized for fast-response transient suppression in 12 V and 24 V automotive systems. Its patented PAR oxide passivated chip construction ensures low incremental surge resistance and stable clamping performance across temperature.
The TPSMP36A-E3/84A delivers 400 W peak pulse power (10/1000 µs waveform) when mounted on 5.0 × 5.0 mm copper pads, with a typical height of 1.0 mm and MSL Level 1 moisture sensitivity rating per J-STD-020C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage V(BR) | 34.2 V min / 37.8 V max at 1 mA - defines minimum voltage at which avalanche conduction begins, critical for coordination with downstream IC operating voltage |
| Clamping Voltage VC | 49.9 V at 8.0 A (10/1000 µs) - maximum voltage seen by protected circuit during surge, directly limits stress on downstream components |
| Peak Pulse Power PPPM | 400 W - determines energy-handling capability for standard automotive transients like ISO 7637-2 pulse 1 and 2b |
| Stand-off Voltage VWM | 30.8 V - maximum continuous reverse voltage before leakage exceeds 1 µA, sets upper limit for normal operating bus voltage |
| Junction Temperature Range | -65 °C to +185 °C - enables operation in engine compartment environments without thermal derating penalties |
| Package | DO-220AA (SMP) - ultra-low-profile surface-mount package with 1.0 mm typical height and matte tin-plated leads |
Pinout & Package
DO-220AA (SMP) package: 2-terminal surface-mount device with cathode indicated by color band; terminals are matte tin-plated, solderable per J-STD-002B and JESD22-B102D; epoxy meets UL-94V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point during surge conduction | Connected to protected line (e.g., sensor output or supply rail); must be routed with low-inductance path to ground reference |
| Cathode (marked) | Reverse-biased terminal during normal operation; avalanche conduction node during overvoltage | Connected to system ground; polarity marking ensures correct PCB placement and prevents functional failure |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR oxide passivation | Enables stable, repeatable avalanche characteristics over lifetime and temperature, reducing parameter drift in harsh automotive environments |
| Low profile (1.0 mm typical height) | Supports automated placement in space-constrained modules such as ADAS camera ECUs and body control units |
| MSL Level 1 rating | Allows unlimited floor life and reflow compatibility without dry-pack requirements, simplifying SMT manufacturing flow |
| AEC-Q101 qualified (E3 suffix = commercial grade; HE3 = high reliability) | Meets automotive component stress test requirements for reliability validation - TPSMP36A-E3/84A is commercial-grade variant |
Applications
| Automotive Sensor Protection | Engine Control Unit (ECU) Power Rail |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors exposed to load dump and inductive switching transients in vehicle chassis. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between sensor output and ground, clamping surges before they reach ADC input or signal conditioning amplifier. Use Value: Limits voltage excursion to ≤49.9 V during 8 A transient, preserving sensor signal integrity and preventing ADC saturation or latch-up in microcontrollers. | Use Scenario: Safeguarding 12 V or 24 V supply inputs to engine management ECUs subjected to ISO 7637-2 pulse 1 (inductive switch-off) and pulse 2b (load dump). IC Role / Device Role / Timing Role: Primary transient suppressor on main power rail, positioned upstream of DC-DC converters and LDOs. Use Value: Absorbs up to 400 W peak pulse energy while maintaining clamped voltage below 50 V, ensuring downstream regulators remain within absolute maximum ratings. |
| Infotainment System USB Interface | Body Control Module (BCM) LIN Bus |
Use Scenario: Protecting USB 2.0 data lines and VBUS in automotive infotainment head units against ESD and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line only (not data lines), leveraging its 30.8 V stand-off to tolerate normal 5 V ±10 % operation while suppressing >34 V transients. Use Value: Prevents damage to USB power switches and PMICs during hot-plug events or battery backup switching, with <1 µA leakage at 30.8 V preserving standby current budget. | Use Scenario: Shielding LIN transceivers and microcontroller I/O pins in door modules and lighting controllers from battery voltage spikes and ground bounce. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp on LIN bus line referenced to local ground, coordinated with 12 V supply rail protection. Use Value: Maintains signal fidelity with minimal added capacitance while clamping transients to <50 V, avoiding LIN frame corruption or transceiver shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A | DO-214AC (SMA) package; 36 V V(BR) range; 400 W PPPM; higher profile (2.29 mm) and larger footprint | Less suitable for ultra-thin modules; requires larger pad layout and may not meet MSL Level 1 without special handling | Select SMAJ36A only if DO-220AA placement equipment or board thickness constraints prevent TPSMP36A-E3/84A use |
| TPSMA6.8A | Same DO-220AA package; lower V(BR) (6.45–7.14 V); 300 W PPPM; intended for 5 V logic rails, not 12/24 V systems | Not interchangeable - mismatched clamping and stand-off voltages risk premature conduction or inadequate protection in automotive power domains | Use TPSMA6.8A only for low-voltage digital I/O protection; avoid for TPSMP36A-E3/84A applications requiring ≥30 V VWM |
Compared with SMAJ36A and TPSMA6.8A, the TPSMP36A-E3/84A uniquely combines 400 W surge capability, 30.8 V stand-off, DO-220AA low-profile packaging, and commercial-grade AEC-Q101 alignment - making it optimal for space-limited 12/24 V automotive power and signal line protection where height and thermal robustness are critical.
Availability
TPSMP36A-E3/84A is available at Aetrix Electronics and suitable for automotive sensor protection, ECU power rail hardening, and infotainment system VBUS safeguarding requiring stable component supply and traceable sourcing.
Supply support for TPSMP36A-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 diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive qualification.
The TPSMP series belongs to Vishay's high-power-density automotive TVS portfolio, engineered specifically for under-hood and body electronics requiring AEC-Q101 compliance, low-profile mounting, and robust transient immunity in 12 V and 24 V architectures.
FAQ
What is the clamping voltage of the TPSMP36A-E3/84A at its rated peak pulse current?
The TPSMP36A-E3/84A clamps to a maximum of 49.9 V at 8.0 A peak pulse current using the standardized 10/1000 µs waveform. This value is measured under defined test conditions (TA = 25 °C, mounted on 5.0 × 5.0 mm copper pads) and represents the upper voltage limit imposed on protected circuits during surge events. The TPSMP36A-E3/84A maintains this clamping performance consistently due to its PAR oxide passivated chip construction.
Is the TPSMP36A-E3/84A qualified to AEC-Q101?
The TPSMP36A-E3/84A carries the E3 suffix, indicating commercial-grade qualification. While the TPSMP family includes HE3-suffix variants that are fully AEC-Q101 qualified, the TPSMP36A-E3/84A itself is not AEC-Q101 certified. Its design follows automotive-grade construction practices including MSL Level 1 rating and 185 °C junction temperature capability, but formal AEC-Q101 test reports apply only to HE3-grade parts. Always verify qualification status via Vishay's official documentation for TPSMP36A-E3/84A.
What does the "84A" in TPSMP36A-E3/84A indicate?
The "84A" in TPSMP36A-E3/84A is Vishay's preferred package code denoting 7-inch diameter plastic tape-and-reel packaging with a base quantity of 3000 units. It specifies the delivery format and reel size - not electrical or thermal performance. The "E3" suffix denotes commercial-grade temperature and reliability specification, while "84A" exclusively identifies the packaging configuration used for automated SMT placement.
Can the TPSMP36A-E3/84A be used in bidirectional configurations?
No, the TPSMP36A-E3/84A is explicitly unidirectional, as confirmed in the Vishay datasheet feature list. It contains a single PN junction with cathode marked by a color band and is designed only for reverse-biased transient suppression. Bidirectional protection requires two devices in series opposition or a dedicated bidirectional TVS such as the SMBJ36CA. Using TPSMP36A-E3/84A in bidirectional mode would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit.
What is the maximum steady-state power dissipation for the TPSMP36A-E3/84A?
The TPSMP36A-E3/84A has a maximum steady-state power dissipation (PD) of 1.0 W at TA = 50 °C on an infinite heatsink. Derating applies above 50 °C ambient, with zero power capability at 185 °C junction temperature. This rating governs continuous power handling - distinct from its 400 W peak pulse power capability - and must be respected in designs involving sustained reverse-bias leakage or frequent low-energy transients. The TPSMP36A-E3/84A relies on PCB copper area for thermal management in real-world layouts.
TPSMP36A-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):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 8A
- 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)
TPSMP36A-E3/84A FAQ
1.How can I place an order for TPSMP36A-E3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP36A-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 TPSMP36A-E3/84A reliable?
The price and inventory of TPSMP36A-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 TPSMP36A-E3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP36A-E3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP36A-E3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP36A-E3/84A?
TPSMP36A-E3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP36A-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 TPSMP36A-E3/84A?
For technical support, including TPSMP36A-E3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP36A-E3/84A requirements.
6.How does Aetrix verify that TPSMP36A-E3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP36A-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 TPSMP36A-E3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP36A-E3/84A?
All TPSMP36A-E3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP36A-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 TPSMP36A-E3/84A part is unused and in its original packaging.
Return procedure for TPSMP36A-E3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP36A-E3/84A Tags
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