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Vishay General Semiconductor - Diodes Division TPC22HM3/87A
- Part No.:
- TPC22HM3/87A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC22HM3/87A.pdf
- Description:
- TVS DIODE 17.8VWM 31.9VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:3,264
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Product details
Overview
TPC22HM3/87A from Vishay General Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) in SMPC (TO-277A) package, designed for high-reliability automotive and industrial surge protection. It features a 22.0 V nominal breakdown voltage (VBR), 18.8 V stand-off voltage (VWM), clamping voltage of 30.6 V at 49.0 A peak pulse current, and junction temperature rating up to +185 °C.
For engineers reviewing the TPC22HM3/87A datasheet, TPC22HM3/87A pinout, TPC22HM3/87A application, or TPC22HM3/87A equivalent, key selection criteria include its AEC-Q101 qualification, low-profile 1.1 mm height, MSL Level 1 moisture sensitivity, and unidirectional clamping behavior for DC-biased signal and power line protection.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable breakdown characteristics and low incremental surge resistance. Its 10/1000 µs waveform peak power rating of 1500 W and fast response time enable effective suppression of inductive switching transients and ESD events.
The device operates across -65 °C to +185 °C junction temperature range and meets JESD201 Class 2 whisker resistance requirements. Its matte tin-plated terminals comply with J-STD-002 and JESD22-B102 solderability standards, supporting automated SMT placement in high-volume production.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 22.0 V - precise breakdown threshold ensures reliable triggering before downstream IC damage |
| VWM | 18.8 V - maximum continuous reverse operating voltage without leakage degradation |
| VC @ IPPM | 30.6 V - clamping voltage at 49.0 A defines worst-case overvoltage seen by protected circuit |
| PPPM | 1500 W - peak pulse power handling capability under standardized 10/1000 µs waveform |
| TJ max. | +185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| Package | SMPC (TO-277A) - surface-mount, 3-terminal, low-profile (1.1 mm typical height) package for space-constrained PCBs |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
TPC22HM3/87A is housed in the SMPC (TO-277A) package - a 3-terminal, single-anode/two-cathode configuration with cathode band marking on terminal 1. The package features matte tin-plated leads, UL 94 V-0 molding compound, and JEDEC-compliant outline dimensions (4.80 × 4.40 × 1.10 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Primary cathode connection | Marked with cathode band; connects to protected line's positive side in unidirectional clamp configuration |
| 2 (Cathode) | Secondary cathode connection | Electrically tied to Pin 1 internally; provides mechanical robustness and thermal path redundancy |
| 3 (Anode) | Anode connection | Connects to system ground or return path; completes clamping path during transient event |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier structure ensures stable VBR over lifetime and temperature |
| Low profile height | 1.1 mm typical - enables use in ultra-thin modules and stacked PCB assemblies |
| MSL Level 1 | No floor life limitation - supports indefinite dry pack storage and reflow without baking |
| Automated placement compatibility | Standardized SMPC footprint and lead geometry compatible with high-speed pick-and-place equipment |
| High TJ capability | +185 °C rated junction temperature - eliminates derating concerns in hot ambient environments |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp surges above 18.8 V. Use Value: Withstands 1500 W pulses and maintains clamping at 30.6 V, preserving CAN/LIN transceivers and microcontrollers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation systems. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt ESD and cable discharge events. Use Value: 49.0 A peak pulse current capacity and <1 μs response time prevent latch-up or parametric shift in precision amplifiers. |
| Telecom DC Power Input Protection | Consumer Device USB/DC Jack Protection |
Use Scenario: Securing 48 V PoE-powered network switches against lightning-induced surges on input lines. IC Role / Device Role / Timing Role: Primary unidirectional clamping element on primary-side DC input before DC-DC conversion. Use Value: AEC-Q101 qualification and 185 °C rating ensure long-term stability in sealed telecom enclosures. | Use Scenario: Hardening 5 V DC input jacks in smart home hubs against user-induced ESD and hot-plug transients. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at jack pad to minimize trace inductance. Use Value: 1.1 mm profile allows placement adjacent to connectors without interfering with shield cans or mechanical housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A | Lower PPPM (400 W), SMA package (higher profile, lower thermal mass) | Not AEC-Q101 qualified; limited to commercial-grade consumer/industrial use | Select when cost sensitivity outweighs automotive reliability or power handling needs |
| TPC22A (non-HM3 suffix) | Same electrical specs but HM3 suffix adds halogen-free, RoHS-compliant, and JESD201 Class 2 whisker-tested construction | Lacks AEC-Q101 certification and enhanced material compliance required for Tier 1 automotive BOMs | Choose TPC22HM3/87A when full automotive qualification and long-term intermetallic reliability are mandatory |
Compared with SMAJ22A and TPC22A, the TPC22HM3/87A delivers 3.75× higher surge power handling, automotive-grade qualification, and verified whisker resistance-making it the only option suitable for safety-critical 12 V/24 V vehicle subsystems requiring zero field failure risk.
Availability
TPC22HM3/87A is available at Aetrix Electronics and suitable for automotive control units, industrial sensor interfaces, telecom power inputs, and consumer DC jack protection requiring stable component supply and long-term lifecycle assurance.
Supply support for TPC22HM3/87A 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 reliability, efficiency, and application-specific optimization.
The TPC series belongs to Vishay's eSMP® family of surface-mount TVS diodes engineered specifically for high-power, high-temperature, and automotive-grade transient suppression-prioritizing robustness over generic surge ratings.
FAQ
What is the breakdown voltage tolerance for TPC22HM3/87A?
The TPC22HM3/87A has a specified breakdown voltage (VBR) range of 20.9 V (min) to 23.1 V (max) at 1.0 mA test current, with 22.0 V as the nominal value. This ±5% tolerance ensures consistent clamping behavior across production lots while maintaining margin below the 30.6 V clamping voltage at rated surge current.
Is TPC22HM3/87A suitable for bidirectional transient protection?
No, TPC22HM3/87A is strictly unidirectional and must be used with correct polarity-cathode to the protected line, anode to ground. For bidirectional protection, a separate device such as the SMBJ22CA or a dual-diode array would be required. Using TPC22HM3/87A in reverse bias beyond VWM risks permanent damage due to lack of reverse conduction capability.
Does TPC22HM3/87A require derating at elevated ambient temperatures?
Yes, TPC22HM3/87A must be derated per Figure 2 in the datasheet: peak pulse power decreases linearly above 25 °C ambient, reaching ~70% of 1500 W at +100 °C board temperature. Full 1500 W capability is only guaranteed at TA = 25 °C with proper PCB copper area per Vishay's recommended layout.
What does the "HM3/87A" suffix indicate in TPC22HM3/87A?
The "HM3" denotes halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance; "87A" is the revision code indicating manufacturing lot and process validation level. This suffix confirms full AEC-Q101 qualification, unlike base TPC22A variants which lack automotive certification and enhanced material compliance.
Can TPC22HM3/87A replace SMAJ22A in existing designs without layout changes?
No-TPC22HM3/87A uses the SMPC (TO-277A) package, while SMAJ22A uses SMA (DO-214AC). Their footprints, thermal pads, and terminal spacing differ significantly. Direct replacement requires PCB redesign to accommodate the 4.80 × 4.40 mm SMPC outline and dual-cathode layout, though both serve similar 22 V clamping functions.
TPC22HM3/87A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- TO-277, 3-PowerDFN
- Series:
- PAR®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 17.8V
- Voltage - Breakdown (Min):
- 19.8V
- Voltage - Clamping (Max) @ Ipp:
- 31.9V
- Current - Peak Pulse (10/1000µs):
- 47A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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:
- TO-277A (SMPC)
TPC22HM3/87A FAQ
1.How can I place an order for TPC22HM3/87A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC22HM3/87A 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 TPC22HM3/87A reliable?
The price and inventory of TPC22HM3/87A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC22HM3/87A is usually 5 days.
3.What payment methods are accepted for TPC22HM3/87A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC22HM3/87A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC22HM3/87A?
TPC22HM3/87A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC22HM3/87A 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 TPC22HM3/87A?
For technical support, including TPC22HM3/87A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC22HM3/87A requirements.
6.How does Aetrix verify that TPC22HM3/87A is sourced from the original manufacturer or authorized distributors?
All TPC22HM3/87A 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 TPC22HM3/87A meets industry standards.
7.What is the process for return or replacement of TPC22HM3/87A?
All TPC22HM3/87A units undergo pre-shipment inspection (PSI). If there is an issue with TPC22HM3/87A, 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 TPC22HM3/87A part is unused and in its original packaging.
Return procedure for TPC22HM3/87A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC22HM3/87A Tags
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