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Vishay General Semiconductor - Diodes Division SMA5J15AHE3/61
- Part No.:
- SMA5J15AHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J15AHE3/61.pdf
- Description:
- TVS DIODE 15VWM 24.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,180
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Product details
Overview
SMA5J15AHE3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on power and signal lines. It features a 15 V stand-off voltage (VWM), 24.4 V clamping voltage (VC) at 20.5 A peak pulse current (IPPM), 500 W peak pulse power (10/1000 µs), and AEC-Q101 qualification for automotive use - deployed to protect MOSFETs, ICs, and sensor interfaces against inductive switching transients.
For engineers reviewing the SMA5J15AHE3/61 datasheet, SMA5J15AHE3/61 pinout, SMA5J15AHE3/61 application, or SMA5J15AHE3/61 equivalent, key selection criteria include verified clamping performance under 10/1000 µs surges, unidirectional polarity with cathode band marking, RoHS-compliant AEC-Q101 qualification, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds its 16.7–18.5 V breakdown range (VBR at 1 mA), it avalanches rapidly (<1 ns response) to divert surge current away from downstream circuitry. Its low incremental surge resistance ensures stable clamping during high-current transients up to 20.5 A.
Thermally, it sustains operation from −55 °C to +150 °C junction temperature, with RθJA = 80 °C/W (on recommended pad layout) and RθJL = 25 °C/W - enabling reliable performance in compact automotive and industrial PCB layouts without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - maximum continuous reverse operating voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (min/max) | 16.7 V / 18.5 V at 1 mA - guaranteed avalanche initiation range; ensures predictable turn-on across temperature and unit variation. |
| VC @ IPPM | 24.4 V at 20.5 A - clamped voltage during 500 W, 10/1000 µs surge; determines maximum stress imposed on protected device. |
| PPPM | 500 W - peak pulse power handling capability per standard 10/1000 µs waveform; defines single-event surge robustness. |
| IFSM | 40 A - non-repetitive forward surge current rating (8.3 ms half-sine); supports protection of rectifier or DC input stages. |
| Junction Temp | −55 °C to +150 °C - operational and storage range; enables deployment in under-hood automotive and industrial environments. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; polarity indicated by cathode band on unidirectional types.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to ground or low-impedance return plane; completes shunt path during transient events. |
| Cathode | Reverse-biased terminal / protected line connection | Connected to the line being protected (e.g., 12 V rail, sensor output); avalanche occurs between cathode and anode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces per stress test requirements. |
| Glass passivated junction | Enhances long-term reliability and moisture resistance versus epoxy-passivated alternatives; critical for harsh-environment deployment. |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without preconditioning; eliminates moisture-related popcorning risk. |
| Low incremental surge resistance | Minimizes VC rise under high IPPM, ensuring tighter clamping and lower stress on downstream silicon. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs and lighting modules from load-dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp >30 V spikes. Use Value: Clamps to 24.4 V at 20.5 A, preventing damage to 36 V-rated power management ICs and microcontrollers. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation systems exposed to relay coil kickback. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF) TVS on signal line to ground, suppressing sub-μs EFT bursts. Use Value: Sub-1 ns response and 24.4 V clamping preserve signal integrity while meeting IEC 61000-4-4 level 4 immunity. |
| Consumer DC Power Input Protection | Telecom Line Card Surge Suppression |
Use Scenario: Securing 15 V input stage of PoE-powered access points against hot-swap and lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp ahead of DC-DC converter input, rated for 500 W single-event energy. Use Value: Withstands 500 W (10/1000 µs) without degradation, eliminating need for series fusing in Class 3 PoE designs. |
Use Scenario: Front-end protection of Ethernet PHY interfaces in base station line cards subjected to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Unidirectional TVS on VDDIO supply rail, coordinated with secondary GDT or MOV for staged clamping. Use Value: 24.4 V clamping aligns with 25 V-rated PHY IC absolute maximum ratings, reducing failure rate in field deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J15A-E3/61 | Commercial-grade (non-AEC-Q101), same electrical specs and SMA package; no automotive qualification testing. | Approved for consumer/industrial use only; not permitted in automotive safety-critical modules. | Select when AEC-Q101 is not required and cost sensitivity outweighs qualification assurance. |
| SMA6J15AHE3/61 | 600 W PPPM rating (vs. 500 W), identical VWM/VC, same AEC-Q101 qualification and SMA package. | Supports higher-energy transients (e.g., ISO 7637-2 Pulse 5a) without derating; requires same PCB footprint. | Choose when system-level surge testing exceeds 500 W requirements or future-proofing against stricter standards is needed. |
Compared with SMA5J15AHE3/61, the SMA5J15A-E3/61 offers identical protection performance but lacks automotive qualification, while the SMA6J15AHE3/61 delivers 20 % higher surge power headroom within the same form factor - enabling design flexibility for evolving EMC requirements without layout change.
Availability
SMA5J15AHE3/61 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom infrastructure requiring stable component supply with full AEC-Q101 traceability and RoHS compliance.
Supply support for SMA5J15AHE3/61 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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, optoelectronics, and passive components with emphasis on reliability and high-power density.
The SMA5JxxA family is engineered for high-energy transient suppression in space-constrained automotive and industrial applications, balancing low clamping voltage, fast response, and AEC-Q101 validation.
FAQ
What is the clamping voltage of the SMA5J15AHE3/61 under a 10/1000 µs surge?
The SMA5J15AHE3/61 clamps to a maximum of 24.4 V when subjected to its rated 20.5 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured at TA = 25 °C on the recommended 5.0 mm × 5.0 mm copper pad layout and defines the upper voltage limit imposed on protected circuitry during surge events.
Is the SMA5J15AHE3/61 suitable for automotive applications?
Yes, the SMA5J15AHE3/61 is AEC-Q101 qualified and explicitly designated for automotive use, with ordering code suffix "HE3" indicating RoHS-compliant construction plus full stress-test validation per AEC-Q101. It is deployed in engine control units, body electronics, and ADAS sensor modules where transient immunity is mission-critical.
What does the "HE3" suffix mean in SMA5J15AHE3/61?
The "HE3" suffix in SMA5J15AHE3/61 denotes a RoHS-compliant, AEC-Q101-qualified version with matte tin-plated leads and JESD201 Class 2 whisker resistance. It distinguishes this variant from commercial-grade "E3" parts and halogen-free "HM3" variants, confirming suitability for automotive production environments.
How is polarity identified on the SMA5J15AHE3/61 package?
The SMA5J15AHE3/61 is unidirectional and marked with a cathode band on the SMA (DO-214AC) case. The banded end is the cathode terminal and must be connected to the line being protected (e.g., 15 V rail), while the unmarked end is the anode, connected to ground or return path - correct orientation is essential for proper surge shunting.
What is the thermal resistance of the SMA5J15AHE3/61?
The SMA5J15AHE3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, and a junction-to-lead resistance (RθJL) of 25 °C/W - values critical for estimating temperature rise during repetitive surge events or elevated ambient conditions.
SMA5J15AHE3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 20.5A
- Power - Peak Pulse:
- 500W
- 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)
SMA5J15AHE3/61 FAQ
1.How can I place an order for SMA5J15AHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J15AHE3/61 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 SMA5J15AHE3/61 reliable?
The price and inventory of SMA5J15AHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J15AHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J15AHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J15AHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J15AHE3/61?
SMA5J15AHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J15AHE3/61 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 SMA5J15AHE3/61?
For technical support, including SMA5J15AHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J15AHE3/61 requirements.
6.How does Aetrix verify that SMA5J15AHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J15AHE3/61 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 SMA5J15AHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J15AHE3/61?
All SMA5J15AHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J15AHE3/61, 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 SMA5J15AHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J15AHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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