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Vishay General Semiconductor - Diodes Division SMA5J16AHM3/I
- Part No.:
- SMA5J16AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J16AHM3/I.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,460
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Product details
Overview
SMA5J16AHM3/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR at 1 mA), 26.0 V clamping voltage (VC) at 19.2 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform.
For engineers reviewing the SMA5J16AHM3/I datasheet, SMA5J16AHM3/I pinout, SMA5J16AHM3/I application, or SMA5J16AHM3/I equivalent, this device is selected for robust overvoltage protection in automotive ECUs, industrial I/O modules, and telecom power interfaces where AEC-Q101 qualification, low incremental surge resistance, and fast response time (<1 ns) are critical.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging a glass-passivated silicon junction to achieve stable avalanche breakdown behavior under transient stress. Its electrical characteristics are specified at 25 °C with derating above that temperature per Figure 2, and thermal resistance is 80 °C/W junction-to-ambient on standard 5.0 mm × 5.0 mm copper pads.
The SMA5J16AHM3/I is halogen-free, RoHS-compliant, and AEC-Q101 qualified-denoted by the "HM3" suffix and revision "I". Polarity is marked by a cathode band; it supports single-pulse surge currents up to 40 A (8.3 ms half-sine) and exhibits <1 μA reverse leakage at VWM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 12 V systems. |
| VBR (min/max) | 17.8 V / 19.7 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on across production lot and temperature. |
| VC @ IPPM | 26.0 V at 19.2 A - Clamped voltage during 10/1000 µs surge; limits downstream IC stress to safe levels. |
| PPPM | 500 W - Peak pulse power handling capability; enables protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω). |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments. |
| Package | SMA (DO-214AC) - Surface-mount package with 5.28 mm × 4.50 mm footprint; compatible with automated pick-and-place and reflow. |
| Leakage @ VWM | ≤1.0 μA - Low reverse leakage preserves battery life in always-on circuits and avoids false triggering. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case meeting UL 94 V-0 flammability rating; matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; polarity indicated by cathode band at one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or return path; forms clamping loop with cathode during positive transients. |
| Cathode (banded end) | High-side surge input terminal | Connected to protected line (e.g., 12 V rail); conducts avalanche current to ground when VIN exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free & RoHS-compliant | Meets global environmental compliance requirements without compromising surge performance or thermal reliability. |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving clamping precision for sensitive 3.3 V/5 V logic. |
| MSL Level 1 (260 °C peak) | Enables standard lead-free reflow assembly without moisture sensitivity concerns or baking requirements. |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term parameter stability under thermal and electrical stress. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs of BCM microcontrollers and CAN transceivers from load dump and inductive switching spikes. IC Role / Device Role: Unidirectional TVS clamp placed between fused 12 V rail and local LDO input. Use Value: Limits transient voltage to ≤26.0 V during ISO 7637-2 Pulse 5a (load dump), preventing latch-up or permanent damage to downstream ICs. | Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from field-wiring induced surges. IC Role / Device Role: Primary surge suppression stage ahead of optocoupler or Schmitt-trigger input circuitry. Use Value: Withstands repeated 500 W surges while maintaining <1 μA leakage, ensuring stable logic thresholds and long-term channel integrity. |
| Telecom Power Supply Front-End | Consumer Appliance Motor Driver Protection |
Use Scenario: Safeguarding AC/DC adapter outputs and PoE-powered device inputs against lightning-induced surges on building wiring. IC Role / Device Role: Secondary-level TVS on DC output side, coordinated with upstream MOVs and fuses. Use Value: Fast <1 ns response and 26.0 V clamping prevent overvoltage propagation into isolated DC-DC converters and Ethernet PHYs. | Use Scenario: Suppressing back-EMF spikes generated by brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role: Flyback energy clamp across motor terminals or H-bridge high-side FET drains. Use Value: Handles 40 A non-repetitive forward surge (8.3 ms), protecting MOSFETs from avalanche failure during abrupt motor stop/start 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 |
|---|---|---|---|
| SMA5J16AHE3/I | Same electrical specs and AEC-Q101 qualification, but RoHS-compliant without halogen-free designation. | No difference in automotive or industrial use; differs only in material compliance reporting. | Select SMA5J16AHM3/I if halogen-free certification is required per customer or regional regulatory mandate. |
| SMA6J16A-M3/5A | 600 W PPPM, same VWM/VC, but not AEC-Q101 qualified; larger thermal resistance (RθJA = 90 °C/W). | Suitable for commercial-grade power supplies but not automotive safety-critical nodes. | Choose SMA5J16AHM3/I when AEC-Q101 validation and tighter thermal performance (RθJA = 80 °C/W) are mandatory. |
Compared with SMA5J16AHE3/I and SMA6J16A-M3/5A, the SMA5J16AHM3/I uniquely combines halogen-free construction, AEC-Q101 qualification, and optimized thermal resistance-making it the preferred choice for Tier 1 automotive suppliers requiring full material and reliability traceability.
Availability
SMA5J16AHM3/I is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and telecom power interface designs requiring stable component supply, full compliance documentation, and long-term lifecycle support.
Supply support for SMA5J16AHM3/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 reliability, efficiency, and application-specific optimization.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained, high-reliability applications-including automotive, industrial automation, and communications infrastructure-where consistent clamping, low leakage, and qualification-grade validation are essential.
FAQ
What is the clamping voltage of the SMA5J16AHM3/I under a 10/1000 µs surge?
The SMA5J16AHM3/I has a maximum clamping voltage (VC) of 26.0 V at 19.2 A peak pulse current (IPPM) under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 standards and ensures predictable overvoltage limiting for downstream components. The SMA5J16AHM3/I maintains this clamping performance across its qualified temperature range and after multiple surge events, provided derating guidelines are followed.
Is the SMA5J16AHM3/I suitable for automotive applications?
Yes, the SMA5J16AHM3/I is AEC-Q101 qualified and explicitly designated for automotive use via the "HM3" suffix and revision "I". It meets stress tests including temperature cycling, highly accelerated life testing (HALT), and ESD per AEC-Q101 Rev D. The SMA5J16AHM3/I is deployed in engine control units, body control modules, and ADAS power domains where sustained reliability under thermal and electrical stress is mandatory.
What does the "HM3" suffix mean in SMA5J16AHM3/I?
The "HM3" suffix in SMA5J16AHM3/I indicates halogen-free, RoHS-compliant construction with AEC-Q101 qualification. "H" denotes AEC-Q101 qualification, "M3" specifies halogen-free and RoHS-compliant materials, and the trailing "I" is the revision code. This distinguishes it from non-automotive variants like SMA5J16A-E3/61 and confirms compliance with automotive material declarations and reliability requirements.
How does the SMA5J16AHM3/I compare to bidirectional TVS diodes?
The SMA5J16AHM3/I is unidirectional and intended for DC line protection where polarity is fixed-e.g., 12 V supply rails. Unlike bidirectional types (e.g., SMA5J16CA), it conducts only in reverse avalanche mode and blocks forward current up to 40 A surge. Its lower leakage (<1 μA) and tighter VBR tolerance make it preferable for asymmetric DC systems, whereas bidirectional versions suit AC-coupled or floating signal lines.
What PCB layout guidance applies to the SMA5J16AHM3/I?
Vishay specifies mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated thermal and surge performance. Trace width should be ≥1.0 mm, and thermal vias under pads are recommended for high-reliability automotive layouts. The SMA5J16AHM3/I's DO-214AC outline requires 4.93 mm × 5.28 mm board area with 2.54 mm center-to-center lead spacing; avoid solder mask dams between terminals.
SMA5J16AHM3/I 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/I FAQ
1.How can I place an order for SMA5J16AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J16AHM3/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 SMA5J16AHM3/I reliable?
The price and inventory of SMA5J16AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J16AHM3/I is usually 5 days.
3.What payment methods are accepted for SMA5J16AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J16AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J16AHM3/I?
SMA5J16AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J16AHM3/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 SMA5J16AHM3/I?
For technical support, including SMA5J16AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J16AHM3/I requirements.
6.How does Aetrix verify that SMA5J16AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMA5J16AHM3/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 SMA5J16AHM3/I meets industry standards.
7.What is the process for return or replacement of SMA5J16AHM3/I?
All SMA5J16AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J16AHM3/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 SMA5J16AHM3/I part is unused and in its original packaging.
Return procedure for SMA5J16AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J16AHM3/I Tags
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