My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5SMC82CAHM3/H
- Part No.:
- 1.5SMC82CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC82CAHM3/H.pdf
- Description:
- TVS DIODE 70.1VWM 113VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,418
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5SMC82CAHM3/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 70.1 V standoff voltage (VWM), 77.9–86.1 V breakdown voltage (VBR) at 1 mA, 113 V maximum clamping voltage (VC) at 13.3 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the 1.5SMC82CAHM3/H datasheet, 1.5SMC82CAHM3/H pinout, 1.5SMC82CAHM3/H application, or 1.5SMC82CAHM3/H equivalent, this device delivers AEC-Q101 qualified transient suppression in SMC (DO-214AB) package with halogen-free, RoHS-compliant construction and MSL Level 1 moisture sensitivity - critical for high-reliability automotive and industrial designs requiring validated surge immunity.
Technical Context
The 1.5SMC82CAHM3/H operates as a bidirectional avalanche diode, symmetrically clamping voltage transients above ±77.9 V in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance (<0.5 Ω typical), enabling fast response (<1.0 ns) to ESD and lightning-induced surges.
Rated for 150 °C maximum junction temperature and derated linearly above 25 °C ambient, it sustains repetitive 10/1000 µs pulses at 0.01% duty cycle. Thermal resistance is 75 °C/W (junction-to-ambient) on standard 8.0 mm × 8.0 mm copper pads, supporting reliable operation under sustained surge stress in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 70.1 V - Maximum continuous reverse voltage before conduction; defines safe operating margin below clamping threshold |
| VBR (Breakdown) | 77.9–86.1 V at 1 mA - Verified avalanche onset range ensuring consistent turn-on across production lots |
| VC (Clamping) | 113 V at 13.3 A - Peak voltage seen by protected circuit during 10/1000 µs surge; limits stress on downstream ICs |
| PPPM | 1500 W - Sustained single-pulse energy handling per JEDEC standard; enables protection against IEC 61000-4-5 Level 4 surges |
| IPPM | 13.3 A - Peak current delivered at VC; directly determines minimum series impedance required for compliance |
| TJ max. | 150 °C - Enables operation in under-hood automotive environments and industrial enclosures without forced cooling |
| Package | SMC (DO-214AB) - Standardized 7.11 mm × 6.22 mm footprint compatible with automated SMT placement and reflow |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional - no polarity marking; symmetrical terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically; conducts bidirectionally when voltage exceeds ±VBR, eliminating orientation constraints during layout |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - supports ASIL-B system integration |
| Halogen-free & RoHS-compliant | Meets IPC-J-STD-609 Category 1 material requirements and EU RoHS Directive 2011/65/EU - enables green manufacturing compliance |
| MSL Level 1 (260 °C peak) | Zero floor life limitation; can be stored indefinitely and processed in standard lead-free reflow without baking |
| 1500 W peak pulse power | Withstands 10/1000 µs surges up to 13.3 A while clamping below 113 V - exceeds IEC 61000-4-5 4 kV open-circuit test requirement |
| Glass-passivated junction | Ensures stable VBR tolerance (±5%) and low leakage (<1 µA at VWM) over 10-year field life in humid environments |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/FlexRay transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses in engine control units. IC Role / Device Role / Timing Role: Bidirectional clamping element placed at connector interface to shunt surge energy before reaching signal conditioning ICs. Use Value: Maintains signal integrity by limiting transient voltage to ≤113 V during 10/1000 µs surges up to 1500 W - preventing latch-up or gate oxide damage in protected ASICs. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers exposed to inductive switching noise from solenoids and contactors. IC Role / Device Role / Timing Role: Primary overvoltage clamp on field-side input traces, coordinated with series current-limiting resistors and filtering capacitors. Use Value: Enables >100,000 surge cycles at rated power due to low thermal resistance (75 °C/W) and robust junction construction - reducing field failure rates in factory automation systems. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Secondary-level surge protection on Ethernet PHY power rails and RS-485 data lines in base station remote units subjected to lightning-induced ground potential rise. IC Role / Device Role / Timing Role: Fast-response TVS placed adjacent to connector to suppress common-mode transients before entering isolation barriers or level translators. Use Value: Sub-1 ns response time and symmetrical clamping ensure balanced differential signal integrity during asymmetric surges - preserving EMC performance per EN 61000-4-5. |
Use Scenario: Input-stage transient suppression on AC-DC adapter primary-side rectifier outputs, guarding against mains-borne surges and capacitor discharge events. IC Role / Device Role / Timing Role: Standoff-rated (70.1 V) clamp positioned after bridge rectifier but before bulk capacitor to absorb residual line transients. Use Value: Withstands repeated 1500 W pulses without parameter drift, verified per AEC-Q101 stress tests - extending adapter lifetime in regions with unstable grid quality. |
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 PPPM (600 W), higher VC (137 V at 4.4 A), SMB package (smaller footprint, higher RθJA) | Limited to lower-energy surges (IEC 61000-4-5 Level 2); unsuitable for automotive load-dump where 1500 W is mandated | Select only for space-constrained consumer applications with <600 W surge exposure and no AEC-Q101 requirement |
| 1.5KE82CA | Through-hole DO-201 package, identical electrical specs but incompatible with SMT assembly and higher thermal resistance (100 °C/W) | Requires manual soldering or wave soldering; not viable for high-volume automated production or thermally dense boards | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SMBJ85CA and 1.5KE82CA, the 1.5SMC82CAHM3/H uniquely combines AEC-Q101 qualification, SMC surface-mount compatibility, and full 1500 W surge capability - making it the only option among the three suitable for production automotive electronics requiring zero-layout-change migration from legacy TVS solutions.
Availability
1.5SMC82CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line interface circuits requiring stable component supply with guaranteed long-term continuity and traceable sourcing.
Supply support for 1.5SMC82CAHM3/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, MOSFETs, and optoelectronics with emphasis on automotive, industrial, and computing applications.
The 1.5SMC Series was engineered specifically for high-power, surface-mount transient suppression in harsh environments - delivering AEC-Q101 qualified robustness and standardized SMC packaging for seamless integration into automated manufacturing flows.
FAQ
What does the "HM3" suffix indicate in 1.5SMC82CAHM3/H?
The "HM3" suffix in 1.5SMC82CAHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. The "H" indicates 7-inch tape-and-reel packaging (850 units per reel), and the "/H" revision code confirms compliance with Vishay's latest material and reliability specifications per document 88303.
Is 1.5SMC82CAHM3/H suitable for protecting CAN bus lines?
Yes, 1.5SMC82CAHM3/H is widely used for CAN bus protection due to its bidirectional clamping, 113 V clamping voltage at 13.3 A, and AEC-Q101 qualification. It effectively suppresses ISO 16750-2 load-dump transients and ISO 7637-3 coupled noise while maintaining signal integrity across the 1 Mbps CAN physical layer.
How does the 1.5SMC82CAHM3/H compare to unidirectional variants like 1.5SMC82AHM3/H?
The 1.5SMC82CAHM3/H is bidirectional (CA suffix), providing symmetrical clamping for AC-coupled or floating signal lines, whereas 1.5SMC82AHM3/H is unidirectional (A suffix) with cathode band marking and optimized for DC-biased rails. Their VWM, VBR, and VC values differ slightly due to internal structure - CA versions specify parameters for both polarities.
What is the maximum allowable PCB pad size for optimal thermal performance of 1.5SMC82CAHM3/H?
For optimal thermal performance, Vishay specifies 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal for 1.5SMC82CAHM3/H. Smaller pads increase RθJA beyond the rated 75 °C/W, risking thermal runaway during repetitive surges; larger pads yield diminishing returns due to package-limited heat spreading.
Does 1.5SMC82CAHM3/H require derating at elevated ambient temperatures?
Yes, 1.5SMC82CAHM3/H must be derated above 25 °C ambient per Figure 2 in Vishay document 88303. At 85 °C ambient, its peak pulse power drops to ~750 W (50% derating), and at 125 °C, it falls to ~300 W - requiring careful system-level thermal analysis when deployed near hot components like power MOSFETs or transformers.
1.5SMC82CAHM3/H 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:
- Discontinued at Digi-Key
- 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/H FAQ
1.How can I place an order for 1.5SMC82CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC82CAHM3/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 1.5SMC82CAHM3/H reliable?
The price and inventory of 1.5SMC82CAHM3/H 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/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC82CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC82CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC82CAHM3/H?
1.5SMC82CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC82CAHM3/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 1.5SMC82CAHM3/H?
For technical support, including 1.5SMC82CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC82CAHM3/H requirements.
6.How does Aetrix verify that 1.5SMC82CAHM3/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC82CAHM3/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 1.5SMC82CAHM3/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC82CAHM3/H?
All 1.5SMC82CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC82CAHM3/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 1.5SMC82CAHM3/H part is unused and in its original packaging.
Return procedure for 1.5SMC82CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC82CAHM3/H 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 …
