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Vishay General Semiconductor - Diodes Division SMCJ16CAHM3/I
- Part No.:
- SMCJ16CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ16CAHM3/I.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,341
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Product details
Overview
SMCJ16CAHM3/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 16 V standoff voltage (VWM), 1500 W peak pulse power (PPPM), and 26.0 V clamping voltage (VC) at 57.7 A IPPM under 10/1000 µs waveform. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics.
For engineers reviewing the SMCJ16CAHM3/I datasheet, SMCJ16CAHM3/I pinout, SMCJ16CAHM3/I application, or SMCJ16CAHM3/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance, and thermal resistance (RθJA = 75 °C/W) for reliable operation up to +150 °C junction temperature.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: during transient overvoltage events exceeding its breakdown voltage (VBR min = 17.8 V, max = 19.7 V at 1 mA), it switches from high-impedance to low-impedance state within <1 ps, diverting surge current away from sensitive downstream circuitry. Its bidirectional symmetry ensures identical clamping behavior in both polarities.
Designed for PCB-level ESD and lightning-induced surge suppression, the SMCJ16CAHM3/I features glass-passivated junction, MSL Level 1 moisture sensitivity, and matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. It meets UL 497B recognition (QVGQ2) and supports automated SMT placement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working range. |
| VBR (min/max) | 17.8 V / 19.7 V at 1 mA - Breakdown threshold range; ensures consistent turn-on across production lots. |
| VC @ IPPM | 26.0 V at 57.7 A - Clamped voltage during 10/1000 µs surge; determines maximum stress on protected device. |
| PPPM | 1500 W - Peak pulse power handling; enables robust protection against IEC 61000-4-5 Level 4 surges. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on standard 8 mm × 8 mm copper pads; guides heatsinking requirements. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 7.75 mm × 6.22 mm × 2.62 mm (L × W × H); molded compound meets UL 94 V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity event) | One terminal of symmetrical PN junction; conducts during negative transients relative to cathode reference. |
| Cathode | Transient current entry (positive polarity event) | Second terminal of symmetrical PN junction; conducts during positive transients; no band marking for bidirectional types. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC performance in both directions-enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics-ensures long-term reliability under thermal shock, humidity, and vibration stress. |
| Halogen-free & RoHS-compliant | HM3 suffix denotes halogen-free molding compound and lead finish-meets EU ELV and OEM environmental requirements. |
| Low incremental surge resistance | Minimizes VC rise under high di/dt surges-maintains tight clamping margin for fast-rising transients like EFT or ISO 7637-2 pulses. |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C/60% RH-eliminates bake-out prior to reflow, reducing manufacturing cost and risk of moisture-induced popcorning. |
Applications
| Automotive Power Distribution | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients per ISO 7637-2. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed at power input stage before DC/DC converter or LDO regulator. Use Value: Limits voltage excursion to ≤26.0 V during 1500 W surges, preventing latch-up or gate oxide damage in downstream PMICs and microcontrollers. | Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors connected to PLC I/O modules. IC Role / Device Role / Timing Role: Bidirectional clamp on differential or single-ended sensor lines exposed to field wiring inductive kickback. Use Value: Maintains signal integrity by clamping ±26.0 V transients while adding <1 pF junction capacitance-no bandwidth degradation at 1 MHz. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Drive Inputs |
Use Scenario: Front-end protection for Ethernet PHY power rails and data lines in enterprise switching equipment. IC Role / Device Role / Timing Role: Secondary-level TVS after gas discharge tube (GDT) primary protection-handles residual surges per IEC 61000-4-5. Use Value: Withstands repeated 10/1000 µs surges up to 57.7 A without parameter drift, ensuring multi-year field reliability. | Use Scenario: Input-stage surge suppression for BLDC motor driver boards in washing machines and HVAC systems. IC Role / Device Role / Timing Role: Clamp across bridge rectifier output or half-bridge DC bus to absorb inductive energy from motor commutation. Use Value: 1500 W PPPM rating handles worst-case back-EMF spikes; +150 °C TJ max supports sealed enclosure thermal environments. |
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 | Lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 110 °C/W), same VWM/VBR/VC specs. | Suitable for space-constrained consumer designs with lower surge threat levels; not rated for automotive under-hood use. | Select when board area is critical and surge energy does not exceed 400 W. |
| SMCJ16CA-E3/57T | Same electrical specs and SMC package, but commercial-grade (non-AEC-Q101), RoHS-compliant with standard tin-lead finish. | Appropriate for industrial control and telecom where automotive qualification is unnecessary; lower cost than HM3 variant. | Select for non-automotive applications requiring identical clamping performance and mechanical fit. |
Compared with SMCJ16CAHE3/A and SMCJ16CA-E3/57T, the SMCJ16CAHM3/I provides AEC-Q101 qualification and halogen-free construction-making it the only choice for automotive power electronics requiring full compliance with OEM environmental and reliability mandates.
Availability
SMCJ16CAHM3/I is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, telecom line card surge protection, and consumer appliance motor drive inputs requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ16CAHM3/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 high-reliability and application-specific performance.
The SMCJ series was developed for high-power transient suppression in harsh environments-targeting automotive, industrial, and telecom applications demanding AEC-Q101 validation, robust surge handling, and precise clamping accuracy.
FAQ
What is the clamping voltage of the SMCJ16CAHM3/I under a 10/1000 µs surge?
The SMCJ16CAHM3/I has a maximum clamping voltage (VC) of 26.0 V at 57.7 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 09-Jan-2024, ensuring predictable overvoltage limiting for protected circuits.
Is the SMCJ16CAHM3/I suitable for automotive applications?
Yes, the SMCJ16CAHM3/I is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction validated for automotive use. It meets requirements for under-hood and body electronics, including thermal cycling, humidity testing, and surge immunity per ISO 7637-2 and IEC 61000-4-5.
What does the "CA" suffix mean in SMCJ16CAHM3/I?
The "CA" suffix in SMCJ16CAHM3/I designates a bidirectional configuration-meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., SMCJ16A), it has no cathode band marking and exhibits identical VBR, VC, and leakage characteristics in either polarity.
What is the thermal resistance of the SMCJ16CAHM3/I, and how does it affect layout?
The SMCJ16CAHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal. To maintain TJ ≤ 150 °C under full 1500 W surge conditions, designers must ensure adequate copper area and avoid excessive ambient temperature buildup-especially in sealed enclosures.
How does the SMCJ16CAHM3/I differ from the SMCJ16CA-E3/57T?
The SMCJ16CAHM3/I and SMCJ16CA-E3/57T share identical electrical specifications and SMC (DO-214AB) package, but differ in qualification and material: SMCJ16CAHM3/I is AEC-Q101 qualified and halogen-free (HM3), while SMCJ16CA-E3/57T is commercial-grade (E3) with standard RoHS compliance. The HM3 variant is mandatory for automotive OEM designs.
SMCJ16CAHM3/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:
- Discontinued at Digi-Key
- 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/I FAQ
1.How can I place an order for SMCJ16CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ16CAHM3/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/I reliable?
The price and inventory of SMCJ16CAHM3/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/I is usually 5 days.
3.What payment methods are accepted for SMCJ16CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ16CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ16CAHM3/I?
SMCJ16CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ16CAHM3/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/I?
For technical support, including SMCJ16CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ16CAHM3/I requirements.
6.How does Aetrix verify that SMCJ16CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SMCJ16CAHM3/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/I meets industry standards.
7.What is the process for return or replacement of SMCJ16CAHM3/I?
All SMCJ16CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ16CAHM3/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/I part is unused and in its original packaging.
Return procedure for SMCJ16CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ16CAHM3/I Tags
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