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Vishay General Semiconductor - Diodes Division SMCJ16CAHM3_A/I
- Part No.:
- SMCJ16CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ16CAHM3_A/I.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,887
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Product details
Overview
SMCJ16CAHM3_A/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 16 V standoff voltage (VWM), 26.0 V maximum clamping voltage (VC) at 57.7 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed across automotive sensor signal lines, industrial I/O ports, and telecom interface protection.
For engineers reviewing the SMCJ16CAHM3_A/I datasheet, SMCJ16CAHM3_A/I pinout, SMCJ16CAHM3_A/I application, or SMCJ16CAHM3_A/I equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, halogen-free RoHS compliance, and thermal resistance (RθJA = 75 °C/W) under real-world PCB pad constraints.
Technical Context
The SMCJ16CAHM3_A/I operates as a silicon avalanche diode with glass-passivated junction, delivering symmetrical clamping in both directions due to its bidirectional construction. Its breakdown voltage (VBR) ranges from 17.8 V to 19.7 V at 1.0 mA test current, with temperature coefficient of 0.089 %/°C - enabling stable transient suppression across -55 °C to +150 °C junction temperature range.
It meets MSL Level 1 per J-STD-020 (peak reflow ≤ 260 °C), uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and is qualified to AEC-Q101 for automotive applications - distinguishing it from commercial-grade variants like SMCJ16A-E3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 17.8 V / 19.7 V at 1.0 mA - defines reliable avalanche onset window under standardized test conditions |
| VC @ IPPM | 26.0 V at 57.7 A - clamping voltage during 10/1000 μs surge, limiting downstream voltage stress |
| PPPM | 1500 W - peak transient energy absorption capability with standard 10/1000 μs waveform |
| RθJA | 75 °C/W - thermal resistance from junction to ambient on recommended 8.0 mm × 8.0 mm copper pads |
| TJ max | +150 °C - maximum allowable junction temperature for sustained operation and reliability |
| Package | SMC (DO-214AB) - surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height |
Pinout & Package
SMCJ16CAHM3_A/I is housed in an SMC (DO-214AB) package with two terminals: no polarity marking for bidirectional operation. The device mounts using standard reflow profiles (MSL Level 1, peak 260 °C) on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Accepts surge current in either direction; symmetric conduction enables dual-polarity protection without external polarity management |
| Cathode | Transient current exit (bidirectional) | Completes low-impedance path to ground or reference rail during clamping; identical electrical behavior to anode under reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity testing, and mechanical shock per AEC specification |
| Halogen-free & RoHS-compliant | Meets JEDEC J-STD-609A Class 1 definition for halogen-free materials and EU RoHS Directive 2011/65/EU |
| Low incremental surge resistance | Enables tighter clamping (26.0 V at 57.7 A) versus higher-resistance TVS devices, reducing voltage overshoot on protected ICs |
| Very fast response time | Sub-nanosecond avalanche turn-on ensures clamping activation before sensitive circuitry sustains damage from ESD or lightning-induced transients |
| MSL Level 1 rating | Supports single-reflow assembly without moisture sensitivity concerns, eliminating bake-out requirements in production |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Port |
|---|---|
Use Scenario: Protecting CAN/LIN bus 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 voltage clamp placed between signal line and chassis ground, absorbing transients up to 1500 W without degradation. Use Value: Maintains signal integrity during 12 V/24 V system surges by limiting clamped voltage to ≤26.0 V - within safe input range of automotive-grade op-amps and ADCs. | Use Scenario: Safeguarding digital input/output channels of programmable logic controllers against inductive switching spikes from solenoids and relays. IC Role / Device Role / Timing Role: Parallel-connected TVS on each I/O trace, providing low-impedance shunt path to common ground during >1 kV transients. Use Value: Prevents latch-up and permanent damage in microcontroller GPIOs by clamping within 100 ns and sustaining 57.7 A peak current per event. |
| Telecom Interface Protection | Consumer Power Adapter EMI Filtering |
Use Scenario: Shielding Ethernet PHYs, RS-485 transceivers, and PoE injectors from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-stage protector upstream of gas discharge tubes or polymer PTCs in multi-stage telecom surge architecture. Use Value: Delivers precise 16 V standoff and 26.0 V clamping to preserve signal margin while handling repetitive 10/1000 μs threats up to 1500 W. | Use Scenario: Suppressing fast-rising noise and coupling transients on DC output rails of AC/DC adapters used in smart home hubs and IoT gateways. IC Role / Device Role / Timing Role: Secondary-level TVS across +VOUT and GND, complementing primary Y-capacitor filtering and transformer isolation. Use Value: Halogen-free construction supports UL/IEC safety certification; 75 °C/W RθJA allows thermal design margin on compact 4-layer PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16CAHE3_A/I | Lower PPPM (400 W), smaller SMA package (DO-214AC), same VWM/VBR/VC specs | Used where board space is constrained but surge energy is lower (e.g., USB data lines) | Select when footprint reduction outweighs need for 1500 W surge capacity |
| SMCJ16CAHE3_A/I | Same SMC package and electrical specs, but commercial-grade (non-AEC-Q101) and RoHS-compliant only (not halogen-free) | Suitable for industrial or consumer applications without automotive qualification requirements | Choose for cost-sensitive non-automotive designs requiring identical form-factor and performance |
Compared with SMCJ16CAHM3_A/I, SMAJ16CAHE3_A/I trades 73 % lower surge power for 30 % smaller footprint, while SMCJ16CAHE3_A/I retains full mechanical and electrical compatibility but omits AEC-Q101 validation and halogen-free material compliance - making it appropriate for non-automotive use cases with identical layout needs.
Availability
SMCJ16CAHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor systems, industrial PLCs, telecom infrastructure equipment, and consumer power adapter designs requiring stable component supply with AEC-Q101 assurance and halogen-free compliance.
Supply support for SMCJ16CAHM3_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, MOSFETs, and protection devices with emphasis on high-reliability, high-efficiency, and application-specific optimization.
The SMCJ series targets high-energy transient suppression in harsh environments - engineered for automotive, industrial, and telecom applications where robustness, consistency, and qualification rigor are mandatory.
FAQ
What is the clamping voltage of SMCJ16CAHM3_A/I at its rated peak pulse current?
The SMCJ16CAHM3_A/I has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current (IPPM) of 57.7 A under the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and reflects worst-case voltage seen by protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is SMCJ16CAHM3_A/I suitable for automotive applications?
Yes, SMCJ16CAHM3_A/I is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials - explicitly intended for automotive use. Its qualification covers temperature cycling, mechanical shock, and humidity testing per AEC standards, and the "HM3" suffix confirms automotive-grade construction, unlike commercial variants such as SMCJ16A-E3.
What does the "CA" suffix indicate in SMCJ16CAHM3_A/I?
The "CA" suffix in SMCJ16CAHM3_A/I denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression in both forward and reverse directions. Unlike unidirectional "A" versions, SMCJ16CAHM3_A/I has no cathode marking and delivers identical VBR, VC, and IPPM characteristics regardless of voltage polarity applied across its terminals.
What is the thermal resistance of SMCJ16CAHM3_A/I, and how does it affect PCB layout?
The SMCJ16CAHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the recommended 8.0 mm × 8.0 mm copper pads per terminal. This value assumes standard FR-4 PCB with 1 oz copper; reducing pad size or omitting thermal vias increases RθJA, potentially exceeding TJ max of +150 °C during repeated surges - so layout must follow Vishay's mounting guidelines.
How does the SMCJ16CAHM3_A/I differ from SMCJ16AHE3_A/I?
The SMCJ16CAHM3_A/I differs from SMCJ16AHE3_A/I in three key ways: it is bidirectional ("CA" vs "A"), AEC-Q101 qualified ("HM3" vs "HE3"), and halogen-free ("HM3" denotes halogen-free RoHS compliance). Electrically, SMCJ16AHE3_A/I is unidirectional with cathode marking and lacks automotive qualification - making SMCJ16CAHM3_A/I the correct choice for bidirectional, automotive-grade protection.
SMCJ16CAHM3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 57.7A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMCJ16CAHM3_A/I FAQ
1.How can I place an order for SMCJ16CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ16CAHM3_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 SMCJ16CAHM3_A/I reliable?
The price and inventory of SMCJ16CAHM3_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 SMCJ16CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMCJ16CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ16CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ16CAHM3_A/I?
SMCJ16CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ16CAHM3_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 SMCJ16CAHM3_A/I?
For technical support, including SMCJ16CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ16CAHM3_A/I requirements.
6.How does Aetrix verify that SMCJ16CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMCJ16CAHM3_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 SMCJ16CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMCJ16CAHM3_A/I?
All SMCJ16CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ16CAHM3_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 SMCJ16CAHM3_A/I part is unused and in its original packaging.
Return procedure for SMCJ16CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ16CAHM3_A/I Tags
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