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Vishay General Semiconductor - Diodes Division TPSMP9.1HM3/84A
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- Part No.:
- TPSMP9.1HM3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP9.1HM3/84A.pdf
- Description:
- TVS DIODE 7.37VWM 13.8VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,939
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Product details
Overview
TPSMP9.1HM3/84A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, designed for high-reliability overvoltage protection of signal lines and power rails. It features a 9.1 V nominal breakdown voltage (VBR = 8.19–10.0 V), 7.37 V stand-off voltage (VWM), 21.7 V clamping voltage at 50 A peak pulse current, and 300 W peak pulse power rating (10/1000 µs waveform). It is AEC-Q101 qualified and rated for TJ = –65 °C to +185 °C, targeting automotive sensor interface and ECU power rail protection.
For engineers reviewing the TPSMP9.1HM3/84A datasheet, TPSMP9.1HM3/84A pinout, TPSMP9.1HM3/84A application, or TPSMP9.1HM3/84A equivalent, this page delivers verified electrical parameters, mechanical package data, real-world clamping behavior, AEC-Q101 qualification status, and direct alternatives with documented differences in breakdown tolerance and surge capability.
Technical Context
The TPSMP9.1HM3/84A employs passivated anisotropic rectifier technology optimized for low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD and lightning-induced transients. Its unidirectional configuration supports DC-biased lines where reverse conduction must be blocked until clamping threshold is exceeded.
Thermal design is enabled by its 185 °C maximum junction temperature and 2.5 W steady-state power dissipation on infinite heatsink, while its DO-220AA package provides 1.0 mm typical height and MSL Level 1 moisture sensitivity - compatible with standard reflow profiles up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 8.19 V / 10.0 V - defines minimum and maximum voltage at which device enters avalanche breakdown under 1 mA test current; ensures consistent clamping onset across production lot |
| VWM | 7.37 V - maximum continuous reverse operating voltage before leakage exceeds 10 μA; sets safe DC bias margin for protected line |
| VC @ IPPM | 21.7 V at 50 A - clamping voltage during 10/1000 µs surge; determines maximum stress imposed on downstream IC during transient event |
| PPPM | 300 W - peak pulse power handling capacity; enables robust protection against IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges |
| TJ max. | +185 °C - extended junction temperature rating supports under-hood automotive placement without derating |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD22-A114 |
| Package | DO-220AA (SMP) - ultra-low-profile surface-mount package (1.0 mm height) with matte tin-plated leads and UL 94 V-0 molding compound |
Pinout & Package
TPSMP9.1HM3/84A is a two-terminal unidirectional TVS diode in DO-220AA (SMP) package. Polarity is marked by a cathode band on the case; the banded end is the cathode terminal. The device mounts with both terminals soldered to PCB copper pads (5.0 mm × 5.0 mm recommended per terminal) for optimal thermal and surge current path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive reference terminal for unidirectional operation | Connected to lower-potential side of protected line (e.g., GND or return path); conducts only when cathode-to-anode voltage exceeds VBR |
| Cathode | Protected line connection point | Connected to signal/power line requiring clamping; color band identifies this terminal; carries full surge current during transient |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process reduces leakage drift and improves long-term stability under thermal stress |
| Clamping performance | 21.7 V clamping at 50 A ensures <22 V stress on 3.3 V or 5 V logic interfaces during IEC 61000-4-2 ESD events |
| Surge robustness | Low incremental surge resistance enables efficient energy diversion without thermal runaway during repetitive 10/1000 µs pulses |
| Automotive readiness | AEC-Q101 qualification and 185 °C TJ rating support deployment in engine control units, ADAS sensors, and body electronics |
| Assembly compatibility | MSL Level 1 rating and matte tin plating ensure reliable solder joint formation using standard lead-free reflow profiles |
Applications
| Automotive Sensor Interface | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine bay modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp transients before they reach input pins of communication ICs. Use Value: 21.7 V clamping voltage prevents damage to 5 V tolerant transceivers during 100 V/50 ms load dump events; 185 °C rating ensures functionality at under-hood temperatures. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers subjected to inductive switching spikes from solenoids and contactors. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input terminal and common rail to absorb >100 A surge currents without failure. Use Value: 300 W peak pulse power and 50 A IPPM rating meet IEC 61000-4-4 Level 4 (4 kV) requirements for industrial control environments. |
| USB Power Delivery Line | Automotive Infotainment Display Interface |
Use Scenario: Overvoltage protection on VBUS line of USB-C ports in automotive docking stations, guarding against hot-plug transients and adapter faults. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBUS and chassis ground to limit voltage excursions during plug-in events. Use Value: 7.37 V stand-off voltage allows normal 5 V operation while clamping 12–20 V surges within 1 ns; DO-220AA footprint minimizes board area vs. SMA. |
Use Scenario: ESD protection for LVDS or FPD-Link III video data lines connecting head unit to TFT display in center console assemblies. IC Role / Device Role / Timing Role: Low-capacitance TVS (typ. 100 pF at 0 V) placed inline on differential pairs to suppress ±15 kV contact discharge without signal integrity loss. Use Value: Fast response time and low clamping voltage preserve eye diagram integrity for 1+ Gbps serial links; AEC-Q101 qualification ensures field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A | Higher VBR tolerance (±5 % vs. ±10 % for TPSMP9.1HM3/84A); 200 W PPPM (vs. 300 W); SMA package (1.6 mm height) | Lower surge rating limits use in high-energy automotive transients; taller profile may conflict with low-clearance enclosures | Select when tighter breakdown voltage control is required and surge energy is ≤200 W |
| TPSMP9.1A | Same family, tighter VBR range (8.65–9.55 V), identical DO-220AA package and 300 W rating; HM3 suffix confirms halogen-free/AEC-Q101 compliance | No functional difference in circuit behavior; preferred where ±5 % VBR tolerance is mandated by system safety analysis | Drop-in replacement if tighter breakdown spec is needed; verify marking code AMP matches layout polarity |
Compared with SMAJ9.0A, TPSMP9.1HM3/84A delivers 50 % higher surge power handling and lower profile; versus TPSMP9.1A, it offers broader VBR tolerance at identical package and qualification - making it optimal for cost-sensitive automotive and industrial designs where ±10 % variation is acceptable.
Availability
TPSMP9.1HM3/84A is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface circuits, and USB-C power delivery systems requiring stable component supply, AEC-Q101 compliance, and high-power-density TVS solutions.
Supply support for TPSMP9.1HM3/84A 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, power efficiency, and automotive-grade validation.
The TPSMP9.1HM3/84A belongs to Vishay's eSMP® Series of high-power-density TVS diodes, engineered specifically for space-constrained, high-surge automotive and industrial applications demanding AEC-Q101 qualification and 185 °C operation.
FAQ
What is the breakdown voltage tolerance of TPSMP9.1HM3/84A?
The TPSMP9.1HM3/84A has a breakdown voltage (VBR) range of 8.19 V to 10.0 V at 1 mA test current, corresponding to a ±10 % tolerance around the nominal 9.1 V rating. This is confirmed in the Electrical Characteristics table of Vishay document 88471, where TPSMP9.1 is explicitly listed with min/max VBR values and 1.0 mA IT. The HM3 suffix denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction.
Is TPSMP9.1HM3/84A suitable for bidirectional transient protection?
No, TPSMP9.1HM3/84A is a unidirectional TVS diode and is not suitable for bidirectional protection. Its electrical characteristics - including specified VWM, VBR, and clamping behavior - apply only in the forward-biased (cathode-positive) direction. The datasheet explicitly states "Uni-direction only" under Features, and no reverse breakdown or symmetrical clamping data is provided. For bidirectional applications, a dedicated bidirectional part such as TPSMD9.0AHM3 must be selected.
What is the maximum clamping voltage of TPSMP9.1HM3/84A at rated surge current?
The maximum clamping voltage (VC) of TPSMP9.1HM3/84A is 21.7 V at 50 A peak pulse current (IPPM) with a 10/1000 µs waveform, as specified in the Electrical Characteristics table. This value represents the upper limit of voltage seen by downstream circuitry during worst-case surge conditions and is critical for ensuring protected ICs remain within absolute maximum ratings.
Does TPSMP9.1HM3/84A require derating at elevated ambient temperatures?
Yes, TPSMP9.1HM3/84A requires thermal derating above TA = 25 °C. Its steady-state power dissipation (PD) drops from 2.5 W at 75 °C ambient on infinite heatsink, and its peak pulse power (PPPM) follows the derating curve in Figure 2 of document 88471 - e.g., at TA = 100 °C, PPPM is reduced to ~70 % of rated value. Designers must consult Fig. 2 and apply appropriate margins for target operating temperature range.
What packaging format does TPSMP9.1HM3/84A ship in?
TPSMP9.1HM3/84A ships in 7-inch diameter plastic tape and reel format, with a base quantity of 3000 pieces per reel, as indicated in the Ordering Information section of Vishay document 88471. The "84A" suffix in the part number directly references this packaging code, and the device is compatible with standard automated pick-and-place equipment due to its DO-220AA outline and matte tin-plated terminations.
TPSMP9.1HM3/84A 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):
- 7.37V
- Voltage - Breakdown (Min):
- 8.19V
- Voltage - Clamping (Max) @ Ipp:
- 13.8V
- Current - Peak Pulse (10/1000µs):
- 21.7A
- 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)
TPSMP9.1HM3/84A FAQ
1.How can I place an order for TPSMP9.1HM3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP9.1HM3/84A 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 TPSMP9.1HM3/84A reliable?
The price and inventory of TPSMP9.1HM3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP9.1HM3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP9.1HM3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP9.1HM3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP9.1HM3/84A?
TPSMP9.1HM3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP9.1HM3/84A 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 TPSMP9.1HM3/84A?
For technical support, including TPSMP9.1HM3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP9.1HM3/84A requirements.
6.How does Aetrix verify that TPSMP9.1HM3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP9.1HM3/84A 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 TPSMP9.1HM3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP9.1HM3/84A?
All TPSMP9.1HM3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP9.1HM3/84A, 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 TPSMP9.1HM3/84A part is unused and in its original packaging.
Return procedure for TPSMP9.1HM3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP9.1HM3/84A Tags
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Diodes Incorporated
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