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Vishay General Semiconductor - Diodes Division TPSMP22AHE3/85A
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- Part No.:
- TPSMP22AHE3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP22AHE3/85A.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,231
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Product details
Overview
TPSMP22AHE3/85A from Vishay General Semiconductor is a unidirectional automotive-grade transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, with 20.9–23.1 V breakdown voltage, 30.6 V clamping voltage at 13.1 A peak pulse current, and 400 W peak pulse power rating for VBR ≥ 13 V. It protects sensor signal lines and drive transistors in automotive ECUs.
For engineers reviewing the TPSMP22AHE3/85A datasheet, TPSMP22AHE3/85A pinout, TPSMP22AHE3/85A application, or TPSMP22AHE3/85A equivalent, key selection criteria include AEC-Q101 qualification, 1.0 mm profile for space-constrained PCBs, low incremental surge resistance, and RoHS-compliant matte tin terminals meeting JESD22-B102 solderability.
Technical Context
This TVS diode uses Vishay's patented PAR oxide-passivated chip construction to achieve excellent clamping capability and very fast response time (<1 ns), enabling effective suppression of ESD and load-dump transients per ISO 7637-2 and IEC 61000-4-2. Its unidirectional configuration provides forward conduction path during overvoltage events on positive-polarity lines.
Rated for operation from –65 °C to +185 °C junction temperature, the device meets MSL Level 1 per J-STD-020 with 260 °C lead-free reflow peak, and is qualified to AEC-Q101 for automotive under-hood and body-control applications requiring high reliability and stable parametric performance across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 20.9 V / 23.1 V - Ensures reliable triggering above system nominal voltage while avoiding false clamping during normal operation |
| VC @ IPPM | 30.6 V - Clamps transients to safe levels for downstream 3.3 V or 5 V logic interfaces when subjected to 13.1 A 10/1000 µs surge |
| PPPM | 400 W - Supports robust protection against ISO 7637-2 Pulse 5a (load dump) in 12 V automotive systems |
| IFSM | 40 A - Withstands repetitive 10 ms half-sine surges without degradation, critical for motor driver gate protection |
| TJ max | +185 °C - Enables placement near heat sources (e.g., power modules) without derating concerns |
| VWM | 18.8 V - Standoff voltage marginally below VBR, ensuring no leakage conduction during 16 V battery transients |
| IR @ VWM | 1.0 µA - Ultra-low reverse leakage preserves signal integrity in high-impedance sensor bias networks |
Pinout & Package
DO-220AA (SMP) surface-mount package with 1.0 mm typical height, 2.67 mm × 1.88 mm footprint, and cathode indicated by color band. Matte tin-plated leads meet J-STD-002 and JESD22-B102 solderability standards; HE3 suffix denotes AEC-Q101 qualification and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to protected line (e.g., CAN_H, LIN, sensor output); must be routed with low-inductance trace |
| Cathode | Current exit point during clamping | Connected to ground plane or low-impedance return path; color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR oxide passivation | Enables stable VBR and low leakage over 1000+ thermal cycles without parameter drift |
| MSL Level 1 rating | Allows single-pass lead-free reflow at 260 °C without popcorn failure or delamination |
| Low profile (1.0 mm height) | Permits placement beneath connectors or in tight stacking configurations without mechanical interference |
| AEC-Q101 qualification | Validates reliability for automotive powertrain, chassis, and ADAS modules per stress test requirements |
| UL 94 V-0 molding compound | Prevents flame propagation in event of catastrophic failure under sustained overvoltage conditions |
Applications
| Automotive Sensor Protection | Body Control Module (BCM) Power Line |
|---|---|
Use Scenario: Protecting analog output of pressure or temperature sensors in engine bay environments exposed to ISO 7637-2 Pulse 1 and Pulse 2b transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between sensor output and microcontroller ADC input. Use Value: Limits voltage excursion to ≤30.6 V during 13.1 A surge, preventing ADC saturation and preserving measurement accuracy. | Use Scenario: Safeguarding 12 V supply rail feeding microcontrollers and CAN transceivers in door modules and lighting controllers. IC Role / Device Role / Timing Role: Primary transient suppressor on main VBAT input before DC/DC converter. Use Value: Absorbs 400 W load-dump energy (Pulse 5a) without failure, maintaining system uptime during alternator regulation faults. |
| Infotainment Display Interface | Electric Power Steering (EPS) Motor Driver |
Use Scenario: Shielding LVDS or FPD-Link differential pairs connecting head unit to TFT display from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS pair (anode-cathode tied) on each data line, referenced to local ground. Use Value: 1.0 µA leakage at 18.8 V standoff avoids DC offset errors in high-gain video amplifiers. | Use Scenario: Protecting gate drive signals of high-side MOSFETs in EPS H-bridge from inductive switching spikes. IC Role / Device Role / Timing Role: Clamp placed between gate driver output and MOSFET gate, with Kelvin source connection. Use Value: 40 A IFSM rating handles repeated motor stall currents without bond wire fusing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A-E3/5AT | DO-214AC (SMA) package; 22 V VBR; 400 W PPPM; 33.2 V VC; not AEC-Q101 qualified | Larger 4.5 mm × 2.7 mm footprint; higher 1.7 mm profile; suitable for industrial but not automotive under-hood use | Select when AEC-Q101 is not required and board space allows larger package |
| TPSMP22AHM3/85A | Same electrical specs and DO-220AA package; differs only in tape-and-reel packaging (85A vs. HM3 reel code) | No functional difference; identical performance and qualification; same PCB layout and assembly process | Select when sourcing from alternate distribution channels with different reel coding conventions |
Compared with SMAJ22A-E3/5AT, TPSMP22AHE3/85A offers AEC-Q101 qualification and 1.0 mm height for compact automotive layouts; compared with TPSMP22AHM3/85A, it shares identical electrical and mechanical behavior-only packaging logistics differ.
Availability
TPSMP22AHE3/85A is available at Aetrix Electronics and suitable for automotive sensor protection, body control module power line hardening, and electric power steering motor driver safeguarding requiring stable component supply across production lifecycles.
Supply support for TPSMP22AHE3/85A 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with global manufacturing and testing facilities focused on high-reliability components.
The TPSMP series belongs to Vishay's eSMP™ family of ultra-low-profile TVS diodes engineered specifically for AEC-Q101-compliant automotive electronics where space, thermal resilience, and transient immunity are critical.
FAQ
What is the maximum clamping voltage of the TPSMP22AHE3/85A under standard test conditions?
The TPSMP22AHE3/85A has a maximum clamping voltage (VC) of 30.6 V when subjected to its rated peak pulse current (IPPM) of 13.1 A using a 10/1000 µs waveform. This value is measured at TA = 25 °C on FR-4 PCB with 5.0 × 5.0 mm copper pads per terminal, and ensures downstream ICs remain within safe operating voltage limits during transient events.
Is the TPSMP22AHE3/85A qualified for automotive applications?
Yes, the TPSMP22AHE3/85A is AEC-Q101 qualified and designated as high-reliability/automotive grade (suffix "A" and "HE3"). It meets stringent stress tests including temperature cycling, humidity bias, and mechanical shock, making it suitable for engine control units, transmission modules, and other under-hood automotive systems.
What does the "85A" in TPSMP22AHE3/85A indicate?
The "85A" suffix in TPSMP22AHE3/85A specifies the packaging format: 13-inch diameter plastic tape and reel, containing 10,000 units per reel. This contrasts with "84A", which denotes 7-inch reels of 3,000 units. Both share identical electrical, thermal, and qualification characteristics.
How does the TPSMP22AHE3/85A compare to the non-A variant TPSMP22HE3/85A?
The TPSMP22AHE3/85A features tighter VBR tolerance (20.9–23.1 V) versus TPSMP22HE3/85A (19.8–24.2 V), lower leakage (1.0 µA vs. 5.0 µA at VWM), and full AEC-Q101 qualification. The "A" variant is intended for mission-critical automotive functions where parametric consistency and long-term reliability are mandatory.
Can the TPSMP22AHE3/85A be used in bidirectional configurations?
No, the TPSMP22AHE3/85A is unidirectional only, as confirmed in its datasheet features section. For bidirectional transient suppression (e.g., protecting AC-coupled or differential lines), a separate bidirectional TVS such as SMBJ22CA or an anti-parallel pair of unidirectional devices would be required instead of the TPSMP22AHE3/85A.
TPSMP22AHE3/85A 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):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 13.1A
- 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)
TPSMP22AHE3/85A FAQ
1.How can I place an order for TPSMP22AHE3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP22AHE3/85A 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 TPSMP22AHE3/85A reliable?
The price and inventory of TPSMP22AHE3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP22AHE3/85A is usually 5 days.
3.What payment methods are accepted for TPSMP22AHE3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP22AHE3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP22AHE3/85A?
TPSMP22AHE3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP22AHE3/85A 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 TPSMP22AHE3/85A?
For technical support, including TPSMP22AHE3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP22AHE3/85A requirements.
6.How does Aetrix verify that TPSMP22AHE3/85A is sourced from the original manufacturer or authorized distributors?
All TPSMP22AHE3/85A 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 TPSMP22AHE3/85A meets industry standards.
7.What is the process for return or replacement of TPSMP22AHE3/85A?
All TPSMP22AHE3/85A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP22AHE3/85A, 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 TPSMP22AHE3/85A part is unused and in its original packaging.
Return procedure for TPSMP22AHE3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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