My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMP9.1AHE3/85A
~~2.jpg)
- Part No.:
- TPSMP9.1AHE3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP9.1AHE3/85A.pdf
- Description:
- TVS DIODE 7.78VWM 13.4VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,488
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMP9.1AHE3/85A from Vishay General Semiconductor is a unidirectional automotive-grade transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, with 8.65 V to 9.55 V breakdown voltage (VBR), 13.4 V clamping voltage (VC) at 50 A peak pulse current, and 300 W peak pulse power rating for 10/1000 µs waveform. It protects sensor signal lines and drive transistors in automotive ECUs against ESD and load dump.
For engineers reviewing the TPSMP9.1AHE3/85A datasheet, TPSMP9.1AHE3/85A pinout, TPSMP9.1AHE3/85A application, or TPSMP9.1AHE3/85A equivalent, key selection criteria include its AEC-Q101 qualification, 1.0 mm profile for space-constrained PCB layouts, low 7.78 V stand-off voltage (VWM), and 10 µA max reverse leakage at VWM - critical for low-power automotive sensor interfaces.
Technical Context
This TVS diode uses patented PAR oxide-passivated chip construction to achieve low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of fast-rising transients such as ISO 7637-2 pulse 1 and pulse 2b. Its unidirectional configuration supports DC-biased signal line protection where reverse conduction must be blocked.
The device operates across -65 °C to +185 °C junction temperature range and meets MSL Level 1 per J-STD-020 with 260 °C lead-free reflow compatibility. Its matte tin-plated leads comply with J-STD-002 and JESD22-B102 solderability standards, and HE3 suffix confirms JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 8.65 V min / 9.55 V max at 1 mA - defines precise voltage threshold for avalanche conduction during overvoltage events |
| Clamping Voltage VC | 13.4 V max at 50 A IPPM - limits protected circuit voltage during worst-case 10/1000 µs surge |
| Peak Pulse Power PPPM | 300 W for 10/1000 µs waveform - sustains high-energy transients without failure under defined test conditions |
| Stand-off Voltage VWM | 7.78 V - maximum continuous reverse operating voltage before significant leakage begins |
| Reverse Leakage IR | 10 µA max at VWM, 25 °C - ensures minimal power loss and signal integrity in always-on automotive sensors |
| Junction Temperature Range | -65 °C to +185 °C - enables deployment in under-hood environments including engine control modules |
| AEC-Q101 Qualified | Yes - certified for automotive electronic systems requiring robust reliability and stress testing compliance |
Pinout & Package
DO-220AA (SMP) surface-mount package with 1.0 mm typical height, 0.142" × 0.126" footprint, and cathode band marking on one end. Matte tin-plated leads ensure solderability and whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point during clamping | Connected to protected line (e.g., sensor output); conducts when transient exceeds VBR |
| Cathode | Forward current exit point; marked by color band | Connected to ground or lower-potential rail; defines unidirectional conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR oxide-passivated chip | Enables stable avalanche characteristics and low dynamic resistance for consistent clamping performance over lifetime |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and compatibility with standard 260 °C lead-free reflow without baking |
| Ultra-low profile (1.0 mm height) | Reduces board-level mechanical interference in stacked or shielded automotive modules |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth under thermal cycling, ensuring long-term reliability in automotive harnesses |
| UL 94 V-0 molding compound | Meets flammability requirements for safety-critical vehicle subsystems including ADAS and body control units |
Applications
| Automotive Engine Control Unit (ECU) | ADAS Camera Sensor Interface |
|---|---|
Use Scenario: Protects throttle position sensor analog output lines from load dump and alternator ripple transients. IC Role / Device Role: Unidirectional TVS clamp placed between sensor output and microcontroller ADC input. Use Value: Maintains signal fidelity below 7.78 V stand-off while clamping surges to ≤13.4 V - preventing ADC saturation and system reset. |
Use Scenario: Shields MIPI CSI-2 data lanes in forward-facing camera modules from ESD events during vehicle assembly and service. IC Role / Device Role: Point-of-entry protection on differential signal pairs prior to serializer IC. Use Value: 10 µA leakage at VWM avoids DC offset drift; 1.0 mm height fits beneath compact lens housings without interfering with flex routing. |
| Electric Power Steering (EPS) Motor Driver | Body Control Module (BCM) LIN Bus |
Use Scenario: Guards gate driver inputs of MOSFET half-bridges against inductive switching spikes from EPS motor windings. IC Role / Device Role: Fast-response unidirectional clamp referenced to driver IC ground. Use Value: 300 W PPPM handles repetitive 10/1000 µs pulses from PWM commutation; AEC-Q101 qualification ensures operation at 150 °C ambient. |
Use Scenario: Protects LIN transceiver pins in door module controllers from battery disconnect transients and jump-start surges. IC Role / Device Role: Standoff-rated TVS on LIN bus line between transceiver and connector. Use Value: 7.78 V VWM aligns with LIN physical layer's 12 V nominal supply; 13.4 V clamping prevents transceiver latch-up during ISO 7637-2 pulse 5a. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A | Higher VBR (8.1–9.0 V), same DO-214AC package, 400 W PPPM but not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial/commercial designs only | Select SMAJ9.0A only if AEC-Q101 is not required and higher clamping margin is acceptable |
| TPSMP9.0AHE3/85A | VBR 8.1–9.0 V (min/max), slightly lower clamping voltage (13.1 V), identical package and qualification | Nearly identical performance; used where tighter VBR tolerance is preferred over 9.1A's 8.65–9.55 V range | TPSMP9.0AHE3/85A offers marginally lower clamping but narrower VBR window - verify system voltage margin before substitution |
Compared with SMAJ9.0A, TPSMP9.1AHE3/85A provides guaranteed AEC-Q101 compliance and tighter thermal derating up to +185 °C; versus TPSMP9.0AHE3/85A, it trades 0.3 V higher VBR for improved noise immunity in 12 V automotive systems with wide battery swing.
Availability
TPSMP9.1AHE3/85A is available at Aetrix Electronics and suitable for automotive engine control units, ADAS camera modules, and electric power steering systems requiring stable component supply with full traceability and long lifecycle support.
Supply support for TPSMP9.1AHE3/85A 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 TPSMP9.1AHE3/85A belongs to Vishay's eSMP™ series of ultra-low-profile TVS diodes engineered specifically for AEC-Q101-compliant automotive signal line protection with minimal PCB footprint.
FAQ
What is the exact breakdown voltage range for TPSMP9.1AHE3/85A?
The TPSMP9.1AHE3/85A has a specified breakdown voltage (VBR) range of 8.65 V minimum to 9.55 V maximum, measured at 1 mA test current per ANSI/IEEE C62.35. This tight tolerance ensures predictable clamping onset in 12 V automotive systems where battery voltage can vary from 9 V to 16 V during cranking and charging cycles - critical for reliable TPSMP9.1AHE3/85A integration into sensor interface circuits.
Is TPSMP9.1AHE3/85A qualified for automotive use?
Yes, TPSMP9.1AHE3/85A is explicitly AEC-Q101 qualified and designated as high-reliability automotive grade (suffix "A" in part number). It undergoes stress testing including temperature cycling, humidity bias, and accelerated life testing per AEC-Q101 Rev D, making it suitable for under-hood and safety-critical applications where TPSMP9.1AHE3/85A deployment must meet OEM reliability requirements.
What does the "HE3/85A" suffix mean in TPSMP9.1AHE3/85A?
The "HE3" suffix indicates RoHS-compliant, high-reliability construction with JESD201 Class 2 whisker resistance and matte tin plating. The "/85A" denotes packaging: 13" diameter plastic tape and reel, 10,000 units per reel. This packaging format supports high-speed automated placement in automotive electronics manufacturing - a key requirement for TPSMP9.1AHE3/85A volume deployment.
What is the clamping voltage of TPSMP9.1AHE3/85A at rated surge current?
The TPSMP9.1AHE3/85A has a maximum clamping voltage (VC) of 13.4 V at 50 A peak pulse current (IPPM) using the 10/1000 µs waveform. This value is measured under standardized test conditions and ensures protected downstream ICs - such as microcontrollers or LIN transceivers - remain within safe operating voltage limits during ISO 7637-2 transient events, confirming TPSMP9.1AHE3/85A's effectiveness in real-world automotive surge scenarios.
Can TPSMP9.1AHE3/85A replace TPSMP9.0AHE3/85A in an existing design?
TPSMP9.1AHE3/85A and TPSMP9.0AHE3/85A share identical DO-220AA package, AEC-Q101 qualification, and thermal specifications, but differ in VBR (8.65–9.55 V vs. 8.1–9.0 V) and clamping voltage (13.4 V vs. 13.1 V). Substitution is feasible if system voltage margins accommodate the 0.3 V higher VBR; however, validation of transient response and leakage at elevated temperature is recommended before qualifying TPSMP9.1AHE3/85A in production.
TPSMP9.1AHE3/85A 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):
- 7.78V
- Voltage - Breakdown (Min):
- 8.65V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- Current - Peak Pulse (10/1000µs):
- 22.4A
- Power - Peak Pulse:
- 300W
- 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)
TPSMP9.1AHE3/85A FAQ
1.How can I place an order for TPSMP9.1AHE3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP9.1AHE3/85A 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 TPSMP9.1AHE3/85A reliable?
The price and inventory of TPSMP9.1AHE3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP9.1AHE3/85A is usually 5 days.
3.What payment methods are accepted for TPSMP9.1AHE3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP9.1AHE3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP9.1AHE3/85A?
TPSMP9.1AHE3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP9.1AHE3/85A 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 TPSMP9.1AHE3/85A?
For technical support, including TPSMP9.1AHE3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP9.1AHE3/85A requirements.
6.How does Aetrix verify that TPSMP9.1AHE3/85A is sourced from the original manufacturer or authorized distributors?
All TPSMP9.1AHE3/85A 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 TPSMP9.1AHE3/85A meets industry standards.
7.What is the process for return or replacement of TPSMP9.1AHE3/85A?
All TPSMP9.1AHE3/85A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP9.1AHE3/85A, 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 TPSMP9.1AHE3/85A part is unused and in its original packaging.
Return procedure for TPSMP9.1AHE3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP9.1AHE3/85A 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 …
