My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPC30CAHM3/I
- Part No.:
- TPC30CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC30CAHM3/I.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:4,601
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPC30CAHM3/I from Vishay General Semiconductor is a bidirectional 1500 W transient voltage suppressor (TVS) in the SMPC (TO-277A) package, designed for high-reliability automotive and industrial electronics protection. It features a standoff voltage of 25.6 V, breakdown voltage range of 28.5–31.5 V at 1 mA, clamping voltage of 41.4 V at 36.2 A, and operates up to +185 °C junction temperature.
For engineers reviewing the TPC30CAHM3/I datasheet, TPC30CAHM3/I pinout, TPC30CAHM3/I application, or TPC30CAHM3/I equivalent, key selection criteria include peak pulse power rating, clamping performance under 10/1000 μs surge, AEC-Q101 qualification, low-profile mounting compatibility, and bidirectional surge suppression for sensor signal lines and MOSFET gate protection.
Technical Context
The TPC30CAHM3/I implements a junction-passivated PAR® design optimized for fast response to transient overvoltages, with clamping action triggered by avalanche breakdown across both polarities. Its bidirectional structure enables symmetrical protection without polarity sensitivity, supporting robust ESD and load-dump immunity in automotive subsystems.
Rated for 1500 W peak pulse power (10/1000 μs waveform), it delivers 36.2 A peak pulse current while maintaining 41.4 V clamping voltage - critical for safeguarding 24 V automotive electronics against ISO 7637-2 Pulse 1, 2a, and 5a transients. The device's TJ = 185 °C rating supports operation in engine bay and powertrain environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 25.6 V - maximum continuous reverse working voltage before leakage exceeds 1 μA; defines safe operating margin below breakdown |
| VBR (min/max) | 28.5 V / 31.5 V at IT = 1 mA - guaranteed avalanche initiation range; ensures consistent turn-on across production lots |
| VC @ IPPM | 41.4 V at 36.2 A - clamped voltage during full-rated 10/1000 μs surge; determines protected circuit's maximum stress level |
| PPPM | 1500 W - peak pulse power handling per single transient; validates compliance with automotive surge immunity standards |
| TJ max | +185 °C - maximum junction temperature; enables use in under-hood applications without derating at 125 °C ambient |
| Polarity | Bidirectional - provides symmetrical clamping for AC-coupled or floating signal paths without external polarity management |
| MSL Level | Level 1 (J-STD-020) - supports lead-free reflow up to 260 °C peak; eliminates moisture sensitivity concerns in SMT assembly |
Pinout & Package
Package: SMPC (TO-277A), surface-mount, 2-terminal, halogen-free, RoHS-compliant, AEC-Q101 qualified. Dimensions: 4.80 × 3.70 × 1.10 mm (L × W × H), with matte tin-plated leads solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as input/output path; no polarity marking required; symmetric conduction in both directions |
| Terminal 2 | Anode/Cathode (bidirectional) | Completes bidirectional clamping loop; enables placement flexibility on PCB without orientation constraints |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized PAR® design | Reduces parameter drift and improves long-term reliability under thermal cycling and humidity exposure |
| TJ = 185 °C capability | Enables direct integration into high-temperature zones (e.g., near ECUs or motor controllers) without external heatsinking |
| Typical height of 1.1 mm | Supports ultra-low-profile PCB layouts and automated pick-and-place in space-constrained modules |
| AEC-Q101 qualification | Validates robustness for automotive applications including vibration, temperature cycling, and accelerated life testing |
| Very fast response time | Sub-nanosecond avalanche turn-on ensures protection before sensitive downstream components experience overvoltage damage |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD events in vehicle body control modules. IC Role / Device Role: Bidirectional TVS placed directly at connector interface to clamp transients before reaching signal conditioning ICs. Use Value: Maintains 25.6 V standoff while clamping to 41.4 V, preserving signal integrity for 24 V nominal systems with ±10 % tolerance. | Use Scenario: Safeguarding digital input channels of programmable logic controllers exposed to inductive switching noise from solenoids and contactors. IC Role / Device Role: Front-end transient suppressor on 24 V DC input terminals to prevent false triggering and latch-up in microcontroller-based input buffers. Use Value: 1500 W peak power rating handles repetitive 10/1000 μs surges common in factory automation environments without degradation. |
| Automotive Powertrain Control | Consumer Appliance Motor Drive |
Use Scenario: Gate protection for high-side N-channel MOSFETs driving fuel injectors or ignition coils subjected to inductive kickback. IC Role / Device Role: Snubber-connected TVS across MOSFET drain-source to absorb energy from L·di/dt spikes during turn-off. Use Value: 36.2 A peak pulse current capacity matches typical injector coil surge currents, preventing MOSFET avalanche failure. | Use Scenario: Surge suppression on BLDC motor driver power rails in smart washing machines and HVAC blowers exposed to line transients and commutation noise. IC Role / Device Role: Low-profile TVS mounted adjacent to motor controller ICs to limit voltage overshoot during PWM transitions. Use Value: 1.1 mm profile allows placement in tight motor control board layouts without interfering with heatsink clearance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A-E3/5AT (Vishay) | Unidirectional; 33 V VWM; SMA package; 400 W PPPM; lower power rating and larger footprint | Limited to DC-biased circuits; not suitable for AC or floating signal lines without external biasing | Select when cost-sensitive, lower-energy transients dominate and board space permits SMA footprint |
| TPD2E001DRYR (TI) | Low-capacitance ESD array (1.5 pF); 3.6 V VWM; 200 W PPPM; designed for high-speed data lines, not power rail protection | Targeted at USB/HDMI ESD protection; insufficient for 24 V system-level surge immunity | Choose only for low-voltage, high-frequency signal line protection - not a functional substitute for TPC30CAHM3/I |
Compared with SMAJ33A-E3/5AT and TPD2E001DRYR, the TPC30CAHM3/I offers higher surge robustness (1500 W vs. 400 W/200 W), true bidirectionality without biasing, and AEC-Q101 qualification - making it uniquely suited for automotive power and sensor interface protection where reliability and full-system transient immunity are mandatory.
Availability
TPC30CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and powertrain control units requiring stable component supply and long-term lifecycle support.
Supply support for TPC30CAHM3/I 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, TVS devices, and optoelectronics with emphasis on reliability and automotive-grade qualification.
The TPC30CAHM3/I belongs to Vishay's PAR® series of surface-mount TVS diodes, engineered specifically for high-power, high-temperature transient suppression in automotive and industrial environments where AEC-Q101 compliance and 185 °C operation are essential.
FAQ
What is the maximum clamping voltage of the TPC30CAHM3/I under rated surge conditions?
The TPC30CAHM3/I clamps to a maximum of 41.4 V when subjected to its rated 36.2 A peak pulse current (10/1000 μs waveform). This value is measured per ANSI/IEEE C62.35 and guarantees that downstream circuitry remains within safe voltage limits during standardized surge events. The clamping performance is validated across the full operating temperature range and forms the basis for system-level surge immunity design using the TPC30CAHM3/I.
Is the TPC30CAHM3/I suitable for automotive applications requiring AEC-Q101 qualification?
Yes, the TPC30CAHM3/I is explicitly AEC-Q101 qualified, as confirmed in the Vishay datasheet revision 17-Sep-2021 (Document Number: 87649). The HM3 suffix denotes halogen-free, RoHS-compliant construction and full qualification to AEC-Q101 stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing - making the TPC30CAHM3/I appropriate for under-hood and safety-critical automotive subsystems.
What does the "HM3" suffix indicate in TPC30CAHM3/I?
The "HM3" suffix in TPC30CAHM3/I identifies the packaging and qualification variant: halogen-free, RoHS-compliant, AEC-Q101 qualified, and meeting JESD201 Class 2 whisker resistance. It also specifies the reel size - "I" denotes 13-inch diameter plastic tape and reel with 6500 units per reel - distinguishing it from the "H" variant (7-inch reel, 1500 units). The HM3 designation confirms full automotive-grade manufacturing and material compliance for the TPC30CAHM3/I.
Can the TPC30CAHM3/I be used in bidirectional signal line protection without polarity concerns?
Yes, the TPC30CAHM3/I is inherently bidirectional and requires no polarity marking or orientation during placement. Its symmetrical avalanche characteristics ensure identical clamping behavior regardless of voltage polarity across its two terminals. This makes the TPC30CAHM3/I ideal for protecting floating or AC-coupled signal paths such as differential bus lines, sensor bridges, or transformer-isolated interfaces where polarity reversal may occur.
What is the thermal performance limit of the TPC30CAHM3/I in continuous operation?
The TPC30CAHM3/I supports a maximum junction temperature of +185 °C, enabling reliable operation in high-ambient environments like engine compartments or enclosed industrial enclosures. While its surge rating assumes short-duration pulses, steady-state thermal design must account for power dissipation due to leakage current - typically ≤1 μA at 25.6 V - resulting in negligible self-heating. The TPC30CAHM3/I's 185 °C rating ensures margin for transient-induced heating and long-term reliability under thermal cycling stress.
TPC30CAHM3/I 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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 36.2A
- 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)
TPC30CAHM3/I FAQ
1.How can I place an order for TPC30CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC30CAHM3/I 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 TPC30CAHM3/I reliable?
The price and inventory of TPC30CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC30CAHM3/I is usually 5 days.
3.What payment methods are accepted for TPC30CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC30CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC30CAHM3/I?
TPC30CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC30CAHM3/I 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 TPC30CAHM3/I?
For technical support, including TPC30CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC30CAHM3/I requirements.
6.How does Aetrix verify that TPC30CAHM3/I is sourced from the original manufacturer or authorized distributors?
All TPC30CAHM3/I 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 TPC30CAHM3/I meets industry standards.
7.What is the process for return or replacement of TPC30CAHM3/I?
All TPC30CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with TPC30CAHM3/I, 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 TPC30CAHM3/I part is unused and in its original packaging.
Return procedure for TPC30CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC30CAHM3/I Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
