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Vishay General Semiconductor - Diodes Division TPSMP15AHM3/85A
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- Part No.:
- TPSMP15AHM3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP15AHM3/85A.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,539
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Product details
Overview
TPSMP15AHM3/85A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, designed for high-reliability automotive and industrial overvoltage protection. It features a 14.3 V (min) to 15.8 V (max) breakdown voltage at 1 mA, 12.8 V stand-off voltage, 21.2 V clamping voltage at 18.9 A peak pulse current, and 185 °C maximum junction temperature.
For engineers reviewing the TPSMP15AHM3/85A datasheet, TPSMP15AHM3/85A pinout, TPSMP15AHM3/85A application, or TPSMP15AHM3/85A equivalent, key selection criteria include unidirectional clamping performance under 10/1000 µs surge, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on FR-4 PCBs with 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode uses 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 provides forward conduction capability while clamping reverse surges above VBR.
The device operates across -65 °C to +185 °C junction temperature range and meets JESD201 Class 2 whisker resistance requirements. Its DO-220AA package delivers high power density (400 W peak pulse power for VBR ≥ 13 V) in a low-profile form factor (1.0 mm typical height) with matte tin-plated leads solderable per J-STD-002 and JESD22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 14.3 V / 15.8 V at IT = 1 mA - defines precise voltage threshold for avalanche conduction onset |
| VWM | 12.8 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 21.2 V at 18.9 A - clamped voltage during 10/1000 µs surge, limiting downstream IC stress |
| PPPM | 400 W - peak pulse power handling for VBR ≥ 13 V, enabling robust surge immunity |
| TJ max | +185 °C - supports under-hood automotive environments and high-power industrial layouts |
| Package | DO-220AA (SMP) - 1.0 mm profile, MSL Level 1, halogen-free, RoHS-compliant, AEC-Q101 qualified |
Pinout & Package
DO-220AA (SMP) package: surface-mount, single-axis symmetric outline with cathode band marking; 1.0 mm typical height; 0.024 g unit weight; compatible with 7" and 13" tape-and-reel delivery (85A = 10,000 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connects to protected line's lower-potential side (e.g., GND or signal return); enables bidirectional surge shunting when used with complementary polarity devices |
| Cathode | Avalanche clamping node | Marked by color band; connects to protected line's higher-potential side (e.g., supply rail or signal input); conducts during reverse overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Passivated anisotropic rectifier technology | Enables stable VBR tolerance (±5 %) and low dynamic impedance across temperature and lifetime |
| AEC-Q101 qualification | Validates reliability for automotive powertrain, body electronics, and ADAS modules per stress test requirements |
| MSL Level 1 rating | Permits unlimited floor life and reflow at 260 °C peak without baking, simplifying SMT line integration |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a), improving system-level EMI margin |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V battery rail protection in engine control units against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between battery input and DC/DC converter input stage. Use Value: Clamps 12 V rail to ≤21.2 V during 18.9 A surge, preventing damage to downstream 36 V-rated regulators and microcontrollers. | Use Scenario: Analog sensor signal line (e.g., 4–20 mA loop or 0–5 V output) exposed to ESD in factory automation equipment. IC Role / Device Role / Timing Role: Point-of-entry transient suppressor mounted directly at connector interface before signal conditioning amplifier. Use Value: Limits induced voltage spikes to <21.2 V within nanoseconds, preserving ADC input integrity and avoiding latch-up in precision op-amps. |
| Consumer USB Port ESD Protection | Telecom Power Supply Input Protection |
Use Scenario: VBUS line protection in USB 2.0 host ports subjected to ±8 kV contact ESD per IEC 61000-4-2. IC Role / Device Role / Timing Role: Primary unidirectional clamp on 5 V supply rail feeding USB controller and PHY. Use Value: Responds in <1 ns to divert >15 A ESD current, maintaining VBUS within 5.5 V tolerance window during discharge event. | Use Scenario: 48 V telecom power entry point exposed to lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Secondary-stage TVS in parallel with MOV-based primary protection for fine clamping. Use Value: Provides 400 W peak pulse power handling at 36.8 V stand-off, reducing residual clamping voltage to 59.3 V for downstream DC/DC isolation stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A | DO-214AC (SMA) package; 15 V VBR; 24.4 V VC @ 16.7 A; 400 W PPPM; same AEC-Q101 qualification | 0.25 mm taller (2.3 mm vs. 1.0 mm), requiring PCB layout revision for height-constrained modules | Select SMAJ15A only if existing design uses SMA footprint and board clearance permits increased height. |
| TPSMAJ15A | DO-214AC (SMA) package; identical electrical specs to SMAJ15A but with enhanced surge life per AEC-Q101 rev G | No functional difference from SMAJ15A; not suitable as drop-in replacement due to DO-220AA vs. DO-214AC footprint mismatch | Prefer TPSMP15AHM3/85A for new designs targeting ultra-low profile and automated placement yield; use TPSMAJ15A only for legacy SMA-based BOM consolidation. |
Compared with SMAJ15A and TPSMAJ15A, the TPSMP15AHM3/85A delivers identical 15 V-class clamping performance in a 1.0 mm profile DO-220AA package-enabling higher component density, improved thermal coupling to PCB copper, and superior suitability for automotive ADAS camera modules and compact industrial sensors where vertical space is constrained.
Availability
TPSMP15AHM3/85A is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface hardening, consumer USB port ESD suppression, and telecom power supply input surge mitigation requiring stable component supply and long-term lifecycle support.
Supply support for TPSMP15AHM3/85A 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 diodes, rectifiers, MOSFETs, and protection devices with emphasis on automotive-grade reliability and high-power density packaging.
The TPSMP series belongs to Vishay's eSMP® family of high-power-density TVS diodes, engineered specifically for AEC-Q101-compliant automotive and harsh-environment industrial applications demanding low-profile, high-surge-capability transient suppression.
FAQ
What is the breakdown voltage range of the TPSMP15AHM3/85A?
The TPSMP15AHM3/85A has a guaranteed breakdown voltage range of 14.3 V (minimum) to 15.8 V (maximum) measured at 1 mA test current, as specified in the Vishay datasheet document 88471. This ±5 % tolerance ensures consistent clamping behavior across production lots and temperature extremes up to +185 °C. The TPSMP15AHM3/85A maintains this specification under automotive-grade reliability testing per AEC-Q101.
Is the TPSMP15AHM3/85A suitable for automotive applications?
Yes, the TPSMP15AHM3/85A is AEC-Q101 qualified and rated for operation from -65 °C to +185 °C junction temperature, making it suitable for under-hood and chassis-mounted automotive systems including engine control units, body control modules, and ADAS camera power rails. Its DO-220AA package meets MSL Level 1 and JESD201 Class 2 whisker resistance requirements-key criteria for automotive manufacturing. The TPSMP15AHM3/85A is explicitly listed in Vishay's automotive-grade product documentation.
What is the clamping voltage of the TPSMP15AHM3/85A at its rated peak pulse current?
The TPSMP15AHM3/85A exhibits a maximum clamping voltage (VC) of 21.2 V at its rated peak pulse current (IPPM) of 18.9 A under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and reflects the actual voltage seen by protected circuitry during surge events. The low clamping ratio (VC/VBR ≈ 1.34) confirms efficient energy diversion, a critical parameter verified for the TPSMP15AHM3/85A in Vishay's published electrical characteristics table.
Does the TPSMP15AHM3/85A have a unidirectional or bidirectional configuration?
The TPSMP15AHM3/85A is a unidirectional transient voltage suppressor, meaning it functions as a Zener-like clamp in reverse bias and conducts forward current like a standard diode. Its cathode is marked by a color band, and it is not rated for symmetrical bidirectional clamping. This configuration is optimal for DC power line and signal line protection where polarity is fixed-such as 12 V automotive rails or 5 V USB VBUS lines. The TPSMP15AHM3/85A datasheet explicitly states "Uni-direction only" under Features.
What package type does the TPSMP15AHM3/85A use, and what are its key mechanical attributes?
The TPSMP15AHM3/85A uses the DO-220AA (SMP) surface-mount package: a low-profile, single-ended outline with 1.0 mm typical height, 0.024 g unit weight, and matte tin-plated leads compliant with J-STD-002 and JESD22-B102. Its dimensions (3.61 mm × 2.18 mm × 1.0 mm) and MSL Level 1 rating enable reliable reflow at 260 °C peak without preconditioning. The "HM3" suffix denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction-core attributes confirmed for the TPSMP15AHM3/85A in Vishay's ordering information table.
TPSMP15AHM3/85A 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-220AA (SMP)
TPSMP15AHM3/85A FAQ
1.How can I place an order for TPSMP15AHM3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP15AHM3/85A 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 TPSMP15AHM3/85A reliable?
The price and inventory of TPSMP15AHM3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP15AHM3/85A is usually 5 days.
3.What payment methods are accepted for TPSMP15AHM3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP15AHM3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP15AHM3/85A?
TPSMP15AHM3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP15AHM3/85A 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 TPSMP15AHM3/85A?
For technical support, including TPSMP15AHM3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP15AHM3/85A requirements.
6.How does Aetrix verify that TPSMP15AHM3/85A is sourced from the original manufacturer or authorized distributors?
All TPSMP15AHM3/85A 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 TPSMP15AHM3/85A meets industry standards.
7.What is the process for return or replacement of TPSMP15AHM3/85A?
All TPSMP15AHM3/85A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP15AHM3/85A, 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 TPSMP15AHM3/85A part is unused and in its original packaging.
Return procedure for TPSMP15AHM3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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