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Vishay General Semiconductor - Diodes Division SMA6J16AHM3/61
- Part No.:
- SMA6J16AHM3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J16AHM3/61.pdf
- Description:
- TVS DIODE 16VWM 25.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMA6J16AHM3/61 from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in SMA (DO-214AC) package, with 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR at IT = 1 mA), 25.2 V maximum clamping voltage at 119 A (10/1000 μs), 600 W peak pulse power rating, and 150 °C maximum junction temperature. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients in industrial power supplies.
For engineers reviewing the SMA6J16AHM3/61 datasheet, SMA6J16AHM3/61 pinout, SMA6J16AHM3/61 application, or SMA6J16AHM3/61 equivalent, key selection criteria include clamping voltage margin relative to protected device VDS/VDD, IFSM surge current capability for repetitive load dump events, thermal resistance (RθJA = 120 °C/W), unidirectional polarity alignment with DC-biased rails, and MSL level 1 compliance for lead-free reflow.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal bias (≤16 V), it draws ≤0.2 μA leakage; during transient overvoltage exceeding VBR (17.8–19.7 V), it avalanches to clamp voltage to ≤25.2 V at 119 A (10/1000 μs) or ≤29.5 V at 119 A (8/20 μs). Its dynamic resistance (RD = 0.229 Ω) ensures low-voltage overshoot during fast surges.
Designed for PCB-level protection of DC power rails and low-speed signal paths, it uses silicon avalanche junction physics without internal triggering circuitry. The SMA package provides 5.0 mm × 5.0 mm copper pad thermal coupling, enabling 4 W steady-state dissipation at TA = 50 °C and supporting JEDEC J-STD-020 MSL level 1 handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected rail voltage. |
| VBR (min/max) | 17.8 V / 19.7 V at IT = 1 mA - Avalanche onset range; defines minimum overvoltage threshold for clamping activation. |
| VC @ IPP | 25.2 V at 119 A (10/1000 μs) - Clamped voltage during standard lightning surge test; must stay below protected device absolute max rating. |
| PPPM (10/1000 μs) | 600 W - Peak transient energy absorption capacity; determines survivability of 1 ms inductive kick events. |
| IFSM | 50 A - Non-repetitive forward surge current rating; supports single-event load dump or hot-swap stress without bond wire failure. |
| RθJA | 120 °C/W - Junction-to-ambient thermal resistance on standard PCB pads; used to calculate ΔTJ rise under sustained power dissipation. |
| Polarity | Unidirectional - Cathode-band marked; only suppresses positive transients on anode-grounded configuration. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, halogen-free, RoHS-compliant, MSL level 1, matte tin-plated leads solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current sink terminal during clamping | Connected to protected line (e.g., +12 V rail); carries full surge current into ground path during overvoltage event. |
| Cathode | Reference terminal (marked by color band) | Connected to system ground or low-impedance return; establishes polarity and defines clamping direction for positive transients. |
Key Features
| Feature | Design Value |
|---|---|
| Clamping performance | 25.2 V VC at 119 A (10/1000 μs) enables robust protection of 24 V industrial controllers without exceeding 30 V absolute maximum ratings. |
| Thermal reliability | RθJA = 120 °C/W with 5.0 mm × 5.0 mm copper pads allows stable operation up to 150 °C junction temperature in enclosed enclosures. |
| Manufacturing compatibility | MSL level 1 rating and lead-free compatible terminals support high-yield, no-clean reflow assembly without moisture sensitivity concerns. |
| Leakage control | ≤0.2 μA ID at VWM = 16 V minimizes standby power loss in battery-backed sensor nodes and low-power IoT edge devices. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of gate drivers and MCU I/O pins against back-EMF spikes from brushed DC motor commutation. IC Role / Device Role / Timing Role: Shunt clamping element placed across motor supply rail or driver output to divert inductive energy to ground. Use Value: Limits transient voltage to ≤25.2 V, preventing latch-up or oxide breakdown in 3.3 V/5 V logic interfaces downstream of the driver. |
Use Scenario: Input protection for LIN bus transceivers and power window switch inputs exposed to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12 V supply line feeding BCUs, activated within nanoseconds of surge onset. Use Value: Withstands 50 A IFSM and 600 W PPPM, meeting ISO 7637-2 Pulse 1/2a/5a requirements without derating or parallel staging. |
| Telecom Power Feeds | Consumer Appliance Control Boards |
|
Use Scenario: Surge suppression on -48 V DC telecom rectifier outputs feeding remote radio units and baseband processors. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-rail, cathode-to-ground to clamp negative-going transients on negative supply rails. Use Value: 16 V VWM aligns with -48 V nominal systems using ±5% regulation tolerance, ensuring no false triggering during normal operation. |
Use Scenario: ESD and surge protection for touch panel controller inputs and relay coil drive circuits in smart refrigerators and washing machines. IC Role / Device Role / Timing Role: Board-level defense against human-body-model (HBM) ESD and relay contact bounce-induced spikes. Use Value: 29.5 V VC at 8/20 μs waveform limits spike amplitude to safe levels for 5 V tolerant GPIOs, reducing firmware lockup incidents. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J16AHE3/61 | Same electrical specs, but RoHS-compliant with lead-free finish (E3 suffix) instead of halogen-free (M3 suffix); RθJA identical; same MSL level. | No functional difference in protection performance; E3 variant preferred where halogen content is unrestricted but Pb-free mandate applies. | Select SMA6J16AHM3/61 when halogen-free compliance is required per IEC 61249-2-21; otherwise SMA6J16AHE3/61 offers broader supply chain availability. |
| SMCJ16A | Higher PPPM (1500 W vs. 600 W), larger SMC (DO-214AB) package, higher IFSM (100 A), same VWM/VBR/VC specs; RθJA ≈ 40 °C/W with adequate copper. | Suitable for higher-energy transients (e.g., automotive alternator load dump) where board space permits larger footprint and enhanced thermal mass. | Choose SMCJ16A only if surge energy exceeds 600 W capability and thermal design supports SMC mounting; SMA6J16AHM3/61 remains optimal for space-constrained 600 W applications. |
Compared with SMA6J16AHE3/61, SMA6J16AHM3/61 adds halogen-free assurance without trade-offs in clamping or thermal behavior; versus SMCJ16A, it trades 2.5× peak power headroom for 40 % smaller PCB area and simplified layout-ideal for compact industrial sensors and telecom line cards.
Availability
SMA6J16AHM3/61 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power feeds requiring stable component supply, halogen-free compliance, and MSL level 1 reflow readiness.
Supply support for SMA6J16AHM3/61 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on reliability, precision, and application-specific optimization for industrial and automotive markets.
The SMA6JxxA series targets cost-sensitive, high-volume board-level transient protection, delivering standardized clamping performance in compact surface-mount packages for DC power rail and signal line hardening.
FAQ
What is the maximum clamping voltage of the SMA6J16AHM3/61 under a 10/1000 μs surge?
The SMA6J16AHM3/61 has a maximum clamping voltage (VC) of 25.2 V when subjected to a 10/1000 μs waveform at its rated peak pulse current of 119 A. This value is measured per the test conditions specified in the Vishay datasheet document 89460 and reflects worst-case clamping performance at TA = 25 °C with recommended PCB pad layout.
Does the SMA6J16AHM3/61 support bidirectional transient suppression?
No, the SMA6J16AHM3/61 is a unidirectional TVS diode, as confirmed in the Vishay datasheet features section and electrical characteristics table. It suppresses only positive transients on the anode side relative to cathode; for bidirectional protection, a separate device such as SMA6J16CA or paired unidirectional units would be required.
What is the meaning of the "HM3" and "/61" suffixes in SMA6J16AHM3/61?
In SMA6J16AHM3/61, "H" denotes halogen-free compliance per IEC 61249-2-21, "M3" indicates RoHS-compliant, halogen-free, industrial-grade construction with JESD 201 class 2 whisker resistance, and "/61" specifies packaging in 7-inch plastic tape and reel with 1800 units per reel, per Vishay's ordering information table.
Can the SMA6J16AHM3/61 be used in a 24 V automotive system?
Yes, the SMA6J16AHM3/61 is suitable for 24 V automotive subsystems such as body control modules, provided the protected rail does not exceed 16 V nominal or includes sufficient margin-its 16 V VWM is intended for 12 V systems. For 24 V rails, SMA6J26AHM3/61 (VWM = 26 V) is the appropriate variant per the family's voltage grading.
What is the thermal resistance junction-to-ambient (RθJA) for SMA6J16AHM3/61, and how is it measured?
The SMA6J16AHM3/61 has a typical RθJA of 120 °C/W, measured with the device mounted on a PCB using 5.0 mm × 5.0 mm copper pads per terminal, per JEDEC standards. This value assumes still air convection and defines temperature rise above ambient under steady-state power dissipation, critical for derating PD at elevated board temperatures.
SMA6J16AHM3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 25.2V
- Current - Peak Pulse (10/1000µs):
- 23.8A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA6J16AHM3/61 FAQ
1.How can I place an order for SMA6J16AHM3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J16AHM3/61 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 SMA6J16AHM3/61 reliable?
The price and inventory of SMA6J16AHM3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J16AHM3/61 is usually 5 days.
3.What payment methods are accepted for SMA6J16AHM3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J16AHM3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J16AHM3/61?
SMA6J16AHM3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J16AHM3/61 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 SMA6J16AHM3/61?
For technical support, including SMA6J16AHM3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J16AHM3/61 requirements.
6.How does Aetrix verify that SMA6J16AHM3/61 is sourced from the original manufacturer or authorized distributors?
All SMA6J16AHM3/61 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 SMA6J16AHM3/61 meets industry standards.
7.What is the process for return or replacement of SMA6J16AHM3/61?
All SMA6J16AHM3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J16AHM3/61, 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 SMA6J16AHM3/61 part is unused and in its original packaging.
Return procedure for SMA6J16AHM3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6J16AHM3/61 Tags
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