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Vishay General Semiconductor - Diodes Division SMA5J16AHM3/H
- Part No.:
- SMA5J16AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J16AHM3/H.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,960
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Product details
Overview
SMA5J16AHM3/H from Vishay General Semiconductor is a unidirectional 500 W Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, with 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown range (VBR), and 26.0 V clamping voltage (VC) at 19.2 A peak pulse current. It protects MOSFETs and ICs against inductive switching transients in automotive power supplies and industrial sensor interfaces.
For engineers reviewing the SMA5J16AHM3/H datasheet, SMA5J16AHM3/H pinout, SMA5J16AHM3/H application, or SMA5J16AHM3/H equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (RθJA = 80 °C/W), junction temperature limit (TJ = 150 °C), and halogen-free RoHS compliance per ordering suffix HM3.
Technical Context
This TVS diode operates as a unidirectional clamping device with glass-passivated junction and fast response to 10/1000 µs transients. Its low incremental surge resistance and 26.0 V clamping at 19.2 A enable robust protection of 12 V rail systems without overvoltage stress on downstream components.
Designed for surface-mount automated placement, it meets MSL Level 1 (260 °C reflow peak) and supports bidirectional variants via CA suffix - though SMA5J16AHM3/H itself is unidirectional, marked with cathode band. Polarity is defined by the band; no marking on bidirectional types.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping begins; sets threshold for 12 V automotive system protection. |
| VBR min/max | 17.8 V / 19.7 V at 1 mA - guaranteed breakdown window ensures reliable turn-on margin above VWM. |
| VC @ IPPM | 26.0 V at 19.2 A - clamping voltage during 500 W transient defines worst-case stress on protected IC or MOSFET. |
| PPPM | 500 W - peak pulse power rating with 10/1000 µs waveform; determines survivability against common load-dump surges. |
| TJ max | +150 °C - maximum junction temperature enables operation in under-hood automotive environments. |
| RθJA | 80 °C/W - thermal resistance from junction to ambient; used to calculate temperature rise under sustained leakage or repeated pulses. |
| Package | SMA (DO-214AC) - standardized 2-pin SMD outline with 5.0 mm × 5.0 mm copper pad requirement for rated power dissipation. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, molded plastic case meeting UL 94 V-0. Cathode indicated by band; anode is unmarked end. Matte tin-plated leads, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line (e.g., 12 V rail); conducts surge current to ground when VIN exceeds VBR. |
| Anode | Reference/ground return path | Typically tied to system ground plane; completes clamping loop and must maintain low-inductance connection for effective transient suppression. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; ordering suffix HM3 denotes halogen-free, RoHS-compliant AEC-Q101 version. |
| Low incremental surge resistance | Enables tighter VC–VBR spread (26.0 V vs. 17.8–19.7 V), minimizing overvoltage overshoot during fast transients. |
| MSL Level 1 moisture sensitivity | Allows standard SMT reflow without baking; peak temperature up to 260 °C compatible with lead-free assembly processes. |
| Glass passivated junction | Improves long-term stability and reduces parameter drift under thermal cycling and humidity exposure. |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Lines |
|---|---|
|
Use Scenario: Protection of 12 V supply rails in body control modules against ISO 7637-2 load dump transients. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between battery input and DC-DC converter input stage. Use Value: Clamps 500 W surges to ≤26.0 V, preventing damage to upstream regulators and ensuring system reset integrity. |
Use Scenario: ESD and switching transient suppression on analog output lines of pressure sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Point-of-entry protection on 4–20 mA current loop outputs exposed to relay coil back-EMF. Use Value: Sub-1 ns response time and 26.0 V clamping prevent latch-up or parametric shift in precision DACs and op-amps. |
| Consumer Power Adapter Inputs | Telecom DC Feeds |
|
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters for USB-C PD devices. IC Role / Device Role / Timing Role: Standoff-rated TVS across +5 V/9 V/15 V output rails to absorb flyback spikes from transformer leakage inductance. Use Value: 16 V VWM allows safe operation across multiple output voltages while maintaining margin to 26.0 V clamp level. |
Use Scenario: Surge protection on -48 V DC feed lines powering remote radio units in 5G base stations. IC Role / Device Role / Timing Role: Unidirectional TVS referenced to chassis ground, absorbing longitudinal surges induced by lightning coupling. Use Value: 500 W rating and 150 °C TJ max support continuous operation in outdoor telecom enclosures with limited airflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J16AHE3/H | Same electrical specs and package; RoHS-compliant but not halogen-free; lacks AEC-Q101 qualification. | Suitable for commercial/industrial use where automotive qualification is not required. | Select SMA5J16AHE3/H if halogen-free content is not mandated and AEC-Q101 is unnecessary. |
| SMA6J16A-M3 | 600 W rating (vs. 500 W), higher IPPM (21.5 A), same VWM/VC; identical SMA package and AEC-Q101/HM3 compliance. | Better suited for systems requiring margin against extended-duration transients (e.g., ISO 16750-2 pulse 5a). | Choose SMA6J16A-M3 when higher pulse energy handling is needed without changing layout or footprint. |
Compared with SMA5J16AHM3/H, SMA5J16AHE3/H omits halogen-free and AEC-Q101 compliance, while SMA6J16A-M3 increases pulse power to 600 W with identical pinout and thermal profile - enabling drop-in upgrade where surge margin is critical.
Availability
SMA5J16AHM3/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, and telecom DC feed applications requiring stable component supply, halogen-free compliance, and AEC-Q101 validation.
Supply support for SMA5J16AHM3/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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on high-reliability, automotive-qualified components.
The SMA5J series targets high-power-density transient suppression in space-constrained SMT designs, specifically engineered for automotive, industrial, and telecom systems needing robust, standardized, and AEC-Q101-validated protection.
FAQ
What is the clamping voltage of the SMA5J16AHM3/H under maximum rated surge current?
The SMA5J16AHM3/H has a maximum clamping voltage (VC) of 26.0 V at its rated peak pulse current (IPPM) of 19.2 A, measured with a 10/1000 µs waveform. This value is specified in the Vishay datasheet (Doc. #88875, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuitry during transient events. The SMA5J16AHM3/H maintains this clamping performance across its full operating temperature range.
Is the SMA5J16AHM3/H qualified for automotive applications?
Yes, the SMA5J16AHM3/H is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's official datasheet. The "HM3" designation indicates halogen-free, RoHS-compliant construction with full AEC-Q101 stress testing including HTGB, HTRB, and temperature cycling. This makes the SMA5J16AHM3/H suitable for under-hood and body electronics where automotive reliability standards apply.
What does the "HM3" suffix mean in SMA5J16AHM3/H?
The "HM3" suffix in SMA5J16AHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. Per Vishay's ordering nomenclature, "H" indicates AEC-Q101 qualification, "M3" specifies halogen-free and RoHS-compliant materials, and "/H" is the revision code. This distinguishes it from E3 (RoHS only) and HE3 (AEC-Q101 + RoHS, non-halogen-free) variants. The SMA5J16AHM3/H meets JESD201 Class 2 whisker resistance requirements.
Can the SMA5J16AHM3/H be used in bidirectional configurations?
No, the SMA5J16AHM3/H is a unidirectional TVS diode, as indicated by its "A" suffix (not "CA"). Bidirectional versions use the "CA" suffix (e.g., SMA5J16CA) and exhibit symmetrical clamping in both polarities. The SMA5J16AHM3/H features a cathode band and conducts only in reverse bias - it must be oriented with cathode toward the protected line and anode to ground to function correctly.
What is the thermal resistance of the SMA5J16AHM3/H, and how does it affect layout?
The SMA5J16AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To achieve this rating, PCB layout must provide minimum recommended pad area and thermal vias to inner ground planes. Exceeding RθJA due to undersized pads raises junction temperature, reducing surge endurance and accelerating parameter drift - especially critical in automotive under-hood deployments.
SMA5J16AHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 19.2A
- Power - Peak Pulse:
- 500W
- 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-214AC (SMA)
SMA5J16AHM3/H FAQ
1.How can I place an order for SMA5J16AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J16AHM3/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 SMA5J16AHM3/H reliable?
The price and inventory of SMA5J16AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J16AHM3/H is usually 5 days.
3.What payment methods are accepted for SMA5J16AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J16AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J16AHM3/H?
SMA5J16AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J16AHM3/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 SMA5J16AHM3/H?
For technical support, including SMA5J16AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J16AHM3/H requirements.
6.How does Aetrix verify that SMA5J16AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMA5J16AHM3/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 SMA5J16AHM3/H meets industry standards.
7.What is the process for return or replacement of SMA5J16AHM3/H?
All SMA5J16AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J16AHM3/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 SMA5J16AHM3/H part is unused and in its original packaging.
Return procedure for SMA5J16AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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