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Vishay General Semiconductor - Diodes Division SMCJ16AHM3_A/I
- Part No.:
- SMCJ16AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ16AHM3_A/I.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,246
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Product details
Overview
SMCJ16AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 16 V standoff voltage, 26.0 V clamping voltage at 57.7 A peak pulse current, and 1500 W peak pulse power rating. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and lightning-induced surges in automotive and industrial power electronics.
For engineers reviewing the SMCJ16AHM3_A/I datasheet, SMCJ16AHM3_A/I pinout, SMCJ16AHM3_A/I application, or SMCJ16AHM3_A/I equivalent, key selection criteria include unidirectional polarity, 1.0 μA max reverse leakage at 16 V, AEC-Q101 qualification status, halogen-free RoHS compliance, and thermal resistance of 75 °C/W junction-to-ambient under standard pad layout.
Technical Context
This TVS diode operates as a clamping device that remains high-impedance below 16 V standoff and rapidly transitions to low-impedance conduction above its 17.8–19.7 V breakdown range, limiting transient voltages to ≤26.0 V during 10/1000 μs surges. Its glass-passivated junction ensures stable avalanche characteristics and long-term reliability under repetitive surge stress.
The SMCJ16AHM3_A/I uses a single P-N junction structure with cathode-band polarity marking, optimized for automated SMT placement on 8.0 mm × 8.0 mm copper pads per terminal. It meets MSL level 1 per J-STD-020 and supports peak forward surge current up to 200 A (8.3 ms half-sine), making it suitable for primary-level DC bus and power rail protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VWM) | 16 V - Maximum continuous reverse operating voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 17.8–19.7 V at 1.0 mA - Confirmed avalanche initiation range for reliable clamping onset |
| Clamping Voltage (VC) | 26.0 V at 57.7 A (10/1000 μs) - Actual voltage seen by protected circuit during worst-case surge |
| Peak Pulse Power (PPPM) | 1500 W - Surge energy handling capacity under standardized waveform conditions |
| Reverse Leakage (ID) | ≤1.0 μA at 16 V - Minimal standby power loss and signal integrity impact in high-impedance circuits |
| Junction Temperature Range | −55 °C to +150 °C - Enables operation in under-hood automotive and industrial ambient environments |
| Package | SMC (DO-214AB) - Industry-standard 2-pin surface-mount outline with 7.75 mm × 6.22 mm footprint |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, 0.320" (8.13 mm) maximum length, 0.246" (6.22 mm) maximum width, cathode band marking on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; defines current direction during clamping |
| Cathode | High-side connection point | Marked with band; connects to protected line (e.g., 12 V rail or signal input); conducts surge current to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance per stress test plan |
| Halogen-free & RoHS-compliant | Meets IEC 61249-2-21 and JEDEC JS709C requirements for green manufacturing and end-of-life processing |
| Low incremental surge resistance | Enables tighter clamping performance and reduced let-through voltage during fast-rising transients |
| Very fast response time | Sub-nanosecond junction response ensures protection before sensitive downstream components are stressed |
| MSL Level 1 rating | Allows unlimited floor life and reflow compatibility without dry-pack or baking requirements |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V battery-fed ECUs exposed to load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Primary clamping element on main power input, placed upstream of DC-DC converters and microcontrollers. Use Value: Limits transient excursions to ≤26.0 V, preventing latch-up or gate oxide damage in 3.3 V/5 V logic and power management ICs. | Use Scenario: Analog output lines from pressure or temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Point-of-entry protection on 4–20 mA or 0–10 V analog outputs subject to ESD and cable coupling. Use Value: Maintains signal fidelity with only 1.0 μA leakage at 16 V, avoiding offset errors in precision measurement circuits. |
| Consumer Power Adapter Input Stage | Telecom DC Feeder Protection |
Use Scenario: Secondary-side 12–24 V outputs of AC/DC adapters powering routers or set-top boxes. IC Role / Device Role / Timing Role: Overvoltage clamp after rectification but before linear regulators or buck controllers. Use Value: Absorbs 1500 W surges without degradation, extending adapter lifetime in regions with unstable grid voltage. | Use Scenario: −48 V DC feeder lines in base station remote radio units exposed to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Unidirectional shunt protector on positive rail referenced to chassis ground. Use Value: Withstands repeated 200 A surge events (8.3 ms) while maintaining <0.1 % parameter drift over 1000 cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16AHE3/A | Lower PPPM (400 W), smaller SMA package (DO-214AC), same VWM/VBR range | Not suitable for 1500 W surge environments; limited to low-energy signal-line use | Select when board space is constrained and surge threat level is ≤400 W |
| SMCJ16AHE3_A/I | Same electrical specs and SMC package, but standard RoHS (non-halogen-free) construction | Acceptable where halogen-free mandate does not apply; identical thermal and clamping behavior | Select when halogen-free compliance is not required and cost optimization is prioritized |
Compared with SMCJ16AHM3_A/I, SMAJ16AHE3/A offers reduced surge capability in a smaller footprint, while SMCJ16AHE3_A/I delivers identical protection performance without halogen-free certification-enabling trade-offs between environmental compliance, physical robustness, and system-level surge margin.
Availability
SMCJ16AHM3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom power feeds, and consumer power adapter designs requiring stable component supply across multi-year production cycles.
Supply support for SMCJ16AHM3_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 and automotive-qualified products.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-power transient suppression in harsh environments where AEC-Q101 validation, low clamping voltage, and repeatable surge endurance are critical.
FAQ
What is the clamping voltage of SMCJ16AHM3_A/I at its rated peak pulse current?
The SMCJ16AHM3_A/I has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current of 57.7 A under the standard 10/1000 μs waveform. This value is measured at the device terminals with specified PCB pad layout (0.31" × 0.31" copper per lead) and represents the upper voltage limit imposed on protected circuitry during surge events. The SMCJ16AHM3_A/I maintains this clamping performance across its full operating temperature range.
Is SMCJ16AHM3_A/I qualified for automotive applications?
Yes, SMCJ16AHM3_A/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HM3" and documentation in the SMCJ5.0A–SMCJ188CA datasheet (Document Number 88394, Revision 09-Jan-2024). This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and surge endurance-making the SMCJ16AHM3_A/I suitable for engine control units, body electronics, and ADAS power domains where automotive-grade reliability is mandatory.
What does the "HM3" suffix indicate in SMCJ16AHM3_A/I?
The "HM3" suffix in SMCJ16AHM3_A/I denotes halogen-free, RoHS-compliant, and AEC-Q101 qualified construction. Per Vishay's ordering nomenclature, "H" indicates AEC-Q101 qualification, "M3" specifies halogen-free and RoHS-compliant materials, and the "_A/I" denotes packaging in 13" tape-and-reel (3500 units) with revision code "A". This distinguishes it from non-halogen-free variants like SMCJ16AHE3_A/I and non-automotive versions such as SMCJ16A-E3/57T.
How does SMCJ16AHM3_A/I differ from bidirectional SMCJ16CA variants?
SMCJ16AHM3_A/I is unidirectional, with polarity marked by a cathode band and functional only in reverse-bias clamping mode, whereas SMCJ16CA devices are bidirectional and suppress surges in both directions. The unidirectional SMCJ16AHM3_A/I exhibits lower leakage (<1.0 μA at 16 V) and higher forward surge capability (200 A), while SMCJ16CA has symmetric breakdown but double the leakage limit (2.0 μA) for VWM ≤10 V-making SMCJ16AHM3_A/I preferred for DC power rail protection and SMCJ16CA better suited for AC-coupled or floating signal lines.
What is the thermal resistance of SMCJ16AHM3_A/I, and how does it affect layout design?
The SMCJ16AHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the minimum recommended pad layout (0.31" × 0.31" copper per terminal). This value assumes no additional heatsinking; designers must allocate adequate copper area and consider airflow or adjacent heat sources to avoid exceeding the 150 °C maximum junction temperature during sustained power dissipation or repeated surges. Reducing RθJA via larger pads or internal planes directly improves surge repetition rate capability.
SMCJ16AHM3_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:
- 1
- Bidirectional Channels:
- -
- 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)
SMCJ16AHM3_A/I FAQ
1.How can I place an order for SMCJ16AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ16AHM3_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 SMCJ16AHM3_A/I reliable?
The price and inventory of SMCJ16AHM3_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 SMCJ16AHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMCJ16AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ16AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ16AHM3_A/I?
SMCJ16AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ16AHM3_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 SMCJ16AHM3_A/I?
For technical support, including SMCJ16AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ16AHM3_A/I requirements.
6.How does Aetrix verify that SMCJ16AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMCJ16AHM3_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 SMCJ16AHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMCJ16AHM3_A/I?
All SMCJ16AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ16AHM3_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 SMCJ16AHM3_A/I part is unused and in its original packaging.
Return procedure for SMCJ16AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ16AHM3_A/I Tags
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