My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5SMC82CAHM3_A/I
- Part No.:
- 1.5SMC82CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC82CAHM3_A/I.pdf
- Description:
- TVS DIODE 70.1VWM 113VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,395
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5SMC82CAHM3_A/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection on signal and power lines. It features 82 V breakdown voltage (VBR min/max = 77.9 V / 86.1 V at IT = 1 mA), 1500 W peak pulse power (10/1000 μs), clamping voltage of 113 V at 13.3 A, and operates across -65 °C to +150 °C junction temperature range - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5SMC82CAHM3_A/I datasheet, 1.5SMC82CAHM3_A/I pinout, 1.5SMC82CAHM3_A/I application, or 1.5SMC82CAHM3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance, low incremental surge resistance, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This device functions as a voltage-clamped shunt protector: during transients exceeding its reverse standoff voltage (VWM = 70.1 V), it avalanches rapidly (<1 ps response) to divert surge current away from downstream circuitry. Its bidirectional symmetry enables protection on AC-coupled or floating lines without polarity constraints.
Thermally, it delivers 1500 W peak pulse power under JEDEC-standard 10/1000 μs waveform with derating above 25 °C (RθJA = 75 °C/W), and sustains 200 A non-repetitive forward surge (8.3 ms half-sine) only in unidirectional variants - not applicable here due to CA suffix indicating bidirectional construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 77.9 V / 86.1 V at IT = 1 mA - defines precise avalanche initiation window for reliable clamping onset |
| VWM | 70.1 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 113 V at 13.3 A - clamped voltage during full 1500 W surge, limiting stress on protected ICs |
| PPPM | 1500 W (10/1000 μs) - energy-handling capacity sufficient for IEC 61000-4-5 Level 4 surges |
| TJ Range | -65 °C to +150 °C - supports operation in under-hood automotive and industrial ambient environments |
| Package | SMC (DO-214AB) - surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height for high-power density |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads; meets UL 94 V-0 flammability rating and J-STD-002 solderability requirements. Polarity: unmarked - bidirectional symmetry eliminates cathode/anode orientation concerns during placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (bidirectional) | Interchangeable connection point - no polarity dependency; connects to line under protection |
| Terminal 2 | Anode / Cathode (bidirectional) | Interchangeable connection point - ties to reference plane (GND or complementary rail) |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables symmetric protection on AC, differential, or floating signal paths without external polarity management |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges up to 4 kV open-circuit / 2 kA short-circuit |
| AEC-Q101 qualification | Validated for automotive electronics including engine control modules, ADAS sensors, and infotainment interfaces |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements for green manufacturing |
| Low profile SMC package | Enables automated pick-and-place with standard SMT feeders and supports thermal relief via 8.0 mm × 8.0 mm copper pads |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN FD and LIN bus transceivers from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Shunt TVS placed between signal line and chassis ground to clamp transients before they reach transceiver ESD structures. Use Value: Prevents latch-up or permanent damage to transceivers during 12 V system load dump events (up to 35 V, 400 ms). |
Use Scenario: Safeguarding 24 V DC digital input modules against field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Bidirectional clamping element across input terminals to absorb inductive kickback from solenoid coils and relay contacts. Use Value: Eliminates need for external polarity selection components while maintaining <113 V clamping during 1 kV/0.5 A surge tests. |
| Telecom Line Interface | Consumer Power Adapter EMI Filtering |
Use Scenario: Shielding Ethernet PHY magnetics and PoE injectors from lightning-induced common-mode surges on outdoor cabling. IC Role / Device Role / Timing Role: Common-mode TVS pair (one per line) referenced to isolated ground plane in front-end surge protection network. Use Value: Maintains signal integrity up to 100 MHz due to low junction capacitance (~100 pF at 0 V) and fast sub-nanosecond response. |
Use Scenario: Secondary-side overvoltage suppression in USB-C PD adapters to prevent damage during output short-circuit recovery. IC Role / Device Role / Timing Role: Fast-acting clamp across +VOUT/GND rails to limit voltage spikes during MOSFET turn-off transients. Use Value: Halogen-free construction complies with IEC 62368-1 fire safety requirements without compromising 1500 W surge handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ85CA | Lower peak power (600 W), smaller SMB package (DO-214AA), VC = 137 V @ 4.4 A | Suitable for space-constrained consumer ports but insufficient for IEC 61000-4-5 Level 4 industrial surges | Select when board area is critical and surge energy is ≤600 W; verify thermal relief on 5.3 mm × 4.5 mm pads |
| 1.5KE82CA | Through-hole TO-218 package, same VBR/VC, higher RθJA (50 °C/W), no AEC-Q101 qualification | Used in legacy industrial power supplies where manual assembly and lower reliability tiers are acceptable | Choose only for non-automotive, non-SMT designs requiring identical electrical specs but accepting larger footprint and no automotive validation |
Compared with 1.5SMC82CAHM3_A/I, SMBJ85CA trades surge capacity and automotive qualification for compact size, while 1.5KE82CA retains electrical equivalence but sacrifices SMT compatibility and AEC-Q101 assurance - making 1.5SMC82CAHM3_A/I optimal for new automotive and industrial SMT designs demanding both performance and compliance.
Availability
1.5SMC82CAHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter secondary-side clamping requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for 1.5SMC82CAHM3_A/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, power handling, and application-specific qualification.
The 1.5SMC Series targets high-energy transient suppression in automotive, industrial, and telecom systems - engineered for robustness under repetitive surge stress and validated for harsh-environment deployment.
FAQ
What does the "CA" suffix indicate in 1.5SMC82CAHM3_A/I?
The "CA" suffix in 1.5SMC82CAHM3_A/I denotes a bidirectional configuration, meaning the device provides symmetrical transient voltage suppression in both polarities - essential for protecting AC-coupled signals, differential buses like CAN or RS-485, and floating power rails without requiring polarity-aware layout. This differs from "A" suffix parts, which are unidirectional and require correct cathode orientation.
Is 1.5SMC82CAHM3_A/I qualified for automotive use?
Yes, 1.5SMC82CAHM3_A/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code structure ("HM3" indicates halogen-free RoHS-compliant + AEC-Q101). It undergoes rigorous stress testing including temperature cycling, highly accelerated life testing (HALT), and ESD verification - making it suitable for under-hood and cabin electronics such as body control modules and ADAS sensor interfaces.
What is the maximum clamping voltage of 1.5SMC82CAHM3_A/I during a surge event?
The maximum clamping voltage (VC) of 1.5SMC82CAHM3_A/I is 113 V, measured at its peak pulse current (IPPM) of 13.3 A under the standard 10/1000 μs waveform. This value ensures protected downstream components - such as 75 V-rated CAN transceivers or 100 V logic ICs - remain within safe operating voltage limits during surge events.
How does the SMC package of 1.5SMC82CAHM3_A/I compare thermally to smaller packages like SMB?
The SMC (DO-214AB) package of 1.5SMC82CAHM3_A/I offers superior thermal performance versus SMB: its RθJA is 75 °C/W (on 8.0 mm × 8.0 mm pads), enabling sustained 1500 W surge dissipation, whereas SMB packages typically exceed 100 °C/W and are limited to ≤600 W. This makes 1.5SMC82CAHM3_A/I appropriate for high-energy industrial and automotive applications where thermal margin is critical.
Can 1.5SMC82CAHM3_A/I be used in place of a unidirectional TVS like 1.5SMC82AHM3_A/I?
No - 1.5SMC82CAHM3_A/I is bidirectional and lacks polarity marking, while 1.5SMC82AHM3_A/I is unidirectional with a cathode band. Substituting them requires verifying circuit topology: bidirectional use is mandatory for AC or floating lines; unidirectional parts are required for DC rails where reverse conduction must be blocked. Using 1.5SMC82CAHM3_A/I on a DC supply rail may cause unintended conduction during normal operation.
1.5SMC82CAHM3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 70.1V
- Voltage - Breakdown (Min):
- 77.9V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 13.3A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC82CAHM3_A/I FAQ
1.How can I place an order for 1.5SMC82CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC82CAHM3_A/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 1.5SMC82CAHM3_A/I reliable?
The price and inventory of 1.5SMC82CAHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC82CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC82CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC82CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC82CAHM3_A/I?
1.5SMC82CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC82CAHM3_A/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 1.5SMC82CAHM3_A/I?
For technical support, including 1.5SMC82CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC82CAHM3_A/I requirements.
6.How does Aetrix verify that 1.5SMC82CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC82CAHM3_A/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 1.5SMC82CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC82CAHM3_A/I?
All 1.5SMC82CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC82CAHM3_A/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 1.5SMC82CAHM3_A/I part is unused and in its original packaging.
Return procedure for 1.5SMC82CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC82CAHM3_A/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 …
