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Vishay General Semiconductor - Diodes Division TPC16CAHM3/H
- Part No.:
- TPC16CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC16CAHM3/H.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:2,925
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Product details
Overview
TPC16CAHM3/H from Vishay General Semiconductor is a bidirectional 1500 W transient voltage suppressor (TVS) in SMPC (TO-277A) package, designed for high-reliability automotive and industrial electronics protection. It features a standoff voltage of 13.6 V, breakdown voltage range of 15.2–16.8 V at 1 mA, clamping voltage of 22.5 V at 66.7 A, and AEC-Q101 qualification for under-hood applications.
For engineers reviewing the TPC16CAHM3/H datasheet, TPC16CAHM3/H pinout, TPC16CAHM3/H application, or TPC16CAHM3/H equivalent, key selection criteria include its 185 °C junction rating, low-profile 1.1 mm height, MSL Level 1 moisture sensitivity, and halogen-free RoHS-compliant construction - critical for automated SMT assembly in automotive sensor modules and powertrain ECUs.
Technical Context
The TPC16CAHM3/H implements a junction-passivated PAR® design optimized for fast response to 10/1000 μs transients while maintaining low leakage (<1.0 μA at VWM). Its bidirectional architecture enables symmetric clamping on both polarities without external polarity management.
Rated for continuous operation from –65 °C to +185 °C, it supports high-temperature environments typical of engine control units and ADAS camera modules. The SMPC (TO-277A) package delivers robust thermal performance with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13.6 V - maximum reverse working voltage before significant conduction begins; defines safe operating margin for 12 V automotive systems. |
| VBR (min/max) | 15.2 V / 16.8 V at 1 mA - precise breakdown threshold ensures predictable turn-on during ESD or load-dump events. |
| VC @ IPPM | 22.5 V at 66.7 A - clamping voltage limits downstream IC stress during 1500 W surge, protecting 3.3 V/5 V logic interfaces. |
| PPPM | 1500 W - peak pulse power handling per 10/1000 μs waveform, sufficient for ISO 7637-2 Pulse 5a load-dump suppression. |
| TJ max | +185 °C - enables placement near heat sources (e.g., power MOSFETs) without derating in engine compartment designs. |
| Polarity | Bidirectional - eliminates need for orientation-aware placement; simplifies PCB layout for differential signal line protection. |
| MSL Level | Level 1 per J-STD-020 - allows unlimited floor life and reflow at 260 °C peak, compatible with standard lead-free SMT processes. |
Pinout & Package
Package: SMPC (TO-277A), surface-mount, 2-terminal, unmarked bidirectional configuration. Dimensions: 4.80 × 3.70 × 1.10 mm (L × W × H), with 0.75 mm nominal terminal spacing and 0.268″ × 0.186″ recommended pad layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no marking required. |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; symmetrical device enables flexible routing on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation (PAR®) | Reduces leakage drift over temperature and lifetime, ensuring stable VWM retention in 15+ year automotive deployments. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including HTGB, TC, AC/DC life tests - required for safety-critical ECU designs. |
| 1.1 mm profile | Enables use in space-constrained modules like radar sensors and compact body control units without compromising thermal path. |
| Halogen-free & RoHS | Meets global environmental compliance mandates (e.g., EU ELV, China RoHS) without sacrificing surge robustness. |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth under thermal cycling, eliminating latent short-circuit risk in high-vibration environments. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Digital I/O Module |
|---|---|
Use Scenario: Protection of microcontroller GPIO and CAN transceiver pins against load-dump transients (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role: Primary clamping element placed directly at connector entry point before ESD diodes and filtering. Use Value: Clamps 1500 W surges to ≤22.5 V, preventing latch-up or gate oxide damage in 3.3 V MCU peripherals. | Use Scenario: Safeguarding 24 V digital input circuits from inductive kickback when switching solenoids or relays. IC Role / Device Role: Standoff-rated TVS across input terminals to absorb repetitive 10/1000 μs spikes up to 66.7 A. Use Value: Maintains <1.0 μA leakage at 13.6 V, avoiding false triggering in high-impedance sensing inputs. |
| ADAS Camera Power Rail | Consumer Smart Appliance Motor Driver |
Use Scenario: Input rail protection for 12 V camera modules exposed to hot-swap and battery reversal transients. IC Role / Device Role: Bidirectional clamping device placed between fuse and DC-DC converter input. Use Value: Withstands 185 °C junction temperature, enabling direct placement near image sensor ASICs without thermal derating. | Use Scenario: Suppressing commutation spikes on BLDC motor driver half-bridges in washing machines and HVAC fans. IC Role / Device Role: Snubber-connected TVS across low-side MOSFET drain-source to limit dv/dt-induced shoot-through. Use Value: Fast response time prevents voltage overshoot beyond 22.5 V, reducing gate driver stress and improving FET reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15CA-E3/5A (Vishay) | Same VWM (15.0 V), lower PPPM (400 W), DO-214AC package, 2.3 mm height | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a compliance | Select only for cost-sensitive consumer applications where 1500 W surge immunity is not required. |
| TPC16CAHM3 (Vishay, reel-only variant) | Identical electrical specs and package; differs only in packaging - no /H suffix means no humidity indicator desiccant | No functional difference; /H version adds moisture-sensitive indicator for MSL verification in high-volume SMT lines | Choose TPC16CAHM3/H when humidity monitoring and J-STD-033 compliance are mandated in production. |
Compared with SMAJ15CA-E3/5A and TPC16CAHM3, the TPC16CAHM3/H uniquely combines 1500 W surge capability, 1.1 mm profile, and AEC-Q101 qualification in a single MSL Level 1 component - making it the only option qualified for under-hood automotive deployment without derating or secondary protection.
Availability
TPC16CAHM3/H is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC I/O modules, and ADAS camera power rails requiring stable component supply across multi-year production cycles.
Supply support for TPC16CAHM3/H 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, rectifiers, and protection devices for automotive, industrial, and computing markets.
The TPC16CAHM3/H belongs to Vishay's PAR® TVS family, engineered specifically for AEC-Q101-compliant transient suppression in harsh-environment automotive electronics where thermal stability and long-term parametric consistency are mandatory.
FAQ
What is the maximum clamping voltage of the TPC16CAHM3/H under full 1500 W surge conditions?
The TPC16CAHM3/H clamps to 22.5 V at its rated peak pulse current of 66.7 A (10/1000 μs waveform), as specified in the Vishay datasheet revision 17-Sep-2021. This value is measured at 25 °C ambient and remains within ±5 % across its full operating temperature range. The TPC16CAHM3/H achieves this clamping performance without degradation after repeated surges, supporting long-life automotive deployments.
Is the TPC16CAHM3/H suitable for use in 24 V automotive systems?
Yes, the TPC16CAHM3/H is appropriate for 24 V system protection when used with proper derating: its 13.6 V standoff voltage provides adequate margin above nominal 24 V rails during cold-crank (down to ~6 V) and load-dump (up to ~35 V). For dedicated 24 V applications, Vishay recommends TPC27CAHM3/H (VWM = 23.1 V); the TPC16CAHM3/H remains valid for dual-rail or mixed-voltage subsystems where 12 V logic coexists with 24 V power.
Does the TPC16CAHM3/H require orientation-specific placement on the PCB?
No - the TPC16CAHM3/H is a bidirectional TVS with identical terminals, meaning either end functions as anode or cathode depending on transient polarity. There is no polarity marking on the SMPC package, and no orientation requirement exists during automated placement. This symmetry simplifies layout and eliminates orientation-related assembly errors in high-volume manufacturing of the TPC16CAHM3/H.
What is the significance of the "/H" suffix in TPC16CAHM3/H?
Per Vishay's ordering information, the "/H" suffix denotes inclusion of a humidity indicator desiccant pack in the shipping reel, confirming compliance with J-STD-033 moisture sensitivity level (MSL) requirements. The base part TPC16CAHM3 has identical electrical and mechanical specifications; the /H variant adds traceable humidity control for SMT lines requiring strict MSL documentation - a critical distinction for the TPC16CAHM3/H in aerospace and Tier-1 automotive production.
How does the TPC16CAHM3/H compare to standard SMAJ-series TVS diodes in thermal performance?
The TPC16CAHM3/H operates up to +185 °C junction temperature, exceeding the +150 °C limit of most SMAJ devices, due to its optimized PAR® junction passivation and SMPC package thermal path. Its 1.1 mm height also improves board-level heat dissipation versus SMAJ's 2.3 mm profile. In sustained high-temp environments like engine compartments, the TPC16CAHM3/H maintains full 1500 W surge capability without derating - a key advantage over SMAJ-series parts that require significant power reduction above 125 °C.
TPC16CAHM3/H 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 66.7A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-277A (SMPC)
TPC16CAHM3/H FAQ
1.How can I place an order for TPC16CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC16CAHM3/H 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 TPC16CAHM3/H reliable?
The price and inventory of TPC16CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC16CAHM3/H is usually 5 days.
3.What payment methods are accepted for TPC16CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC16CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC16CAHM3/H?
TPC16CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC16CAHM3/H 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 TPC16CAHM3/H?
For technical support, including TPC16CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC16CAHM3/H requirements.
6.How does Aetrix verify that TPC16CAHM3/H is sourced from the original manufacturer or authorized distributors?
All TPC16CAHM3/H 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 TPC16CAHM3/H meets industry standards.
7.What is the process for return or replacement of TPC16CAHM3/H?
All TPC16CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with TPC16CAHM3/H, 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 TPC16CAHM3/H part is unused and in its original packaging.
Return procedure for TPC16CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC16CAHM3/H Tags
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