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Vishay General Semiconductor - Diodes Division SMA5J13AHE3/5A
- Part No.:
- SMA5J13AHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J13AHE3/5A.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,143
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Product details
Overview
SMA5J13AHE3/5A 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 13 V stand-off voltage (VWM), 14.4–15.9 V breakdown voltage (VBR), 21.5 V clamping voltage (VC) at 23.3 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the SMA5J13AHE3/5A datasheet, SMA5J13AHE3/5A pinout, SMA5J13AHE3/5A application, or SMA5J13AHE3/5A equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification (HE3 suffix), RoHS compliance, 150 °C max junction temperature, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a clamping device that remains high-impedance below 13 V and rapidly switches to low-impedance conduction above its breakdown threshold. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and repeatable clamping performance under repetitive transients.
Designed for 10/1000 µs surge waveforms per ANSI/IEEE C62.35, it delivers 21.5 V clamping at 23.3 A IPPM while maintaining low incremental surge resistance - critical for limiting voltage overshoot across protected IC inputs during load dump or ESD events in 12 V automotive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 12 V nominal systems. |
| VBR (min/max) | 14.4 V / 15.9 V - verified breakdown range at 1.0 mA test current; ensures consistent turn-on across production lots. |
| VC @ IPPM | 21.5 V - clamped voltage at 23.3 A peak pulse current; limits stress on downstream 24 V-tolerant ICs. |
| PPPM | 500 W - peak pulse power handling with 10/1000 µs waveform; supports ISO 7637-2 Pulse 5a load dump immunity. |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments. |
| RθJA | 80 °C/W - thermal resistance junction-to-ambient on standard 5.0 mm × 5.0 mm pads; informs PCB thermal layout requirements. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band marking; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or return path; must be routed with low-inductance trace to maintain clamping speed. |
| Cathode (banded end) | Protected line input | Connected to the line being protected (e.g., 12 V rail); reverse-biased during normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 µA) over temperature and lifetime. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive gate drivers. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery rail and DC-DC input stage. Use Value: Limits transient voltage to ≤21.5 V at 23.3 A, preventing damage to upstream regulators and microcontrollers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF typical) clamping element on signal lines entering ADC front-end. Use Value: Maintains signal integrity with <1.0 µA leakage at 13 V, avoiding DC offset errors in precision measurement paths. |
| Consumer Power Adapter Input Stage | Telecom DC Feeder Line Protection |
Use Scenario: Secondary-side surge suppression in AC/DC adapters exposed to mains-borne transients. IC Role / Device Role / Timing Role: Standoff-rated TVS on +5 V or +12 V output rails prior to connector interface. Use Value: Withstands 500 W pulses without degradation, enabling compliance with IEC 61000-4-5 Level 3 (1 kV/2 Ω). | Use Scenario: Overvoltage protection on -48 V telecom DC feeder lines subject to lightning-induced surges. IC Role / Device Role / Timing Role: High-power unidirectional clamp referenced to system ground on power entry board. Use Value: Delivers 21.5 V clamping at full rated current, preserving PoE controller ICs and isolation barriers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J13A-E3/5A | Same electrical specs, but commercial-grade (non-AEC-Q101) and RoHS-compliant only; no automotive qualification. | Restricted to non-automotive industrial or consumer use where AEC-Q101 is not mandated. | Select when cost sensitivity outweighs automotive reliability requirements and qualification documentation is not required. |
| SMA5J13CAHE3/5A | Bidirectional variant with same VWM (13 V), symmetric clamping in both polarities, higher ID limit (2.0 µA vs. 1.0 µA). | Required for AC-coupled or floating signal lines where polarity reversal may occur (e.g., RS-485, CAN bus). | Choose only if bidirectional protection is needed; not a drop-in replacement due to polarity and leakage differences. |
Compared with SMA5J13AHE3/5A, the E3/5A variant lacks AEC-Q101 validation and is unsuitable for automotive deployment, while the 13CAHE3/5A offers polarity-agnostic clamping at the cost of higher leakage and different circuit integration - neither is pin-compatible without layout review.
Availability
SMA5J13AHE3/5A is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC feeder line surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for SMA5J13AHE3/5A 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, power density, and automotive qualification.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained SMT applications - targeting 12 V and 24 V systems where fast response, low clamping voltage, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the SMA5J13AHE3/5A under peak surge conditions?
The SMA5J13AHE3/5A clamps to a maximum of 21.5 V when subjected to its rated 23.3 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's official datasheet revision 09-Jan-2024. The clamping performance ensures protected circuits remain within safe voltage margins during load dump or lightning-induced surges. SMA5J13AHE3/5A maintains this specification across its full operating temperature range.
Is SMA5J13AHE3/5A qualified for automotive applications?
Yes, SMA5J13AHE3/5A is AEC-Q101 qualified, as indicated by the "HE3" suffix in its part number. This certification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD robustness - validating its suitability for under-hood and chassis-mounted automotive electronics. The qualification applies specifically to the HE3 variant; standard E3 versions are not automotive-qualified. SMA5J13AHE3/5A meets these requirements without derating at +125 °C ambient.
What is the maximum reverse leakage current for SMA5J13AHE3/5A at its stand-off voltage?
The maximum reverse leakage current (ID) for SMA5J13AHE3/5A is 1.0 µA when biased at its 13 V stand-off voltage (VWM) and tested at 25 °C. This low leakage ensures minimal power loss and avoids interference with precision analog circuits or high-impedance sensor nodes. Leakage remains within specification up to +125 °C ambient, supporting reliable operation in demanding thermal environments. SMA5J13AHE3/5A achieves this via glass-passivated junction technology.
Can SMA5J13AHE3/5A be used in bidirectional protection circuits?
No, SMA5J13AHE3/5A is a unidirectional TVS diode and must not be used in bidirectional applications. Its cathode band marking indicates polarity-sensitive installation - reverse connection will cause forward conduction and failure. For bidirectional protection, the correct variant is SMA5J13CAHE3/5A, which has symmetrical breakdown behavior and no polarity marking. SMA5J13AHE3/5A's electrical characteristics apply only in the reverse direction; forward voltage is 3.5 V at 25 A, not intended for clamping.
What PCB pad layout is recommended for optimal thermal and surge performance of SMA5J13AHE3/5A?
Vishay specifies mounting SMA5J13AHE3/5A on 0.2" x 0.2" (5.0 mm x 5.0 mm) copper pads per terminal to achieve rated 500 W pulse power and 80 °C/W thermal resistance. These pads must be connected to internal ground/power planes using multiple thermal vias to minimize junction temperature rise during surge events. The SMA (DO-214AC) footprint matches JEDEC DO-214AC standards; no custom land pattern is needed. SMA5J13AHE3/5A's thermal performance degrades significantly if pad area falls below this minimum.
SMA5J13AHE3/5A 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):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 23.3A
- 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)
SMA5J13AHE3/5A FAQ
1.How can I place an order for SMA5J13AHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J13AHE3/5A 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 SMA5J13AHE3/5A reliable?
The price and inventory of SMA5J13AHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J13AHE3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J13AHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J13AHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J13AHE3/5A?
SMA5J13AHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J13AHE3/5A 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 SMA5J13AHE3/5A?
For technical support, including SMA5J13AHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J13AHE3/5A requirements.
6.How does Aetrix verify that SMA5J13AHE3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J13AHE3/5A 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 SMA5J13AHE3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J13AHE3/5A?
All SMA5J13AHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J13AHE3/5A, 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 SMA5J13AHE3/5A part is unused and in its original packaging.
Return procedure for SMA5J13AHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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