My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMA5J9.0A-E3/5A
- Part No.:
- SMA5J9.0A-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J9.0A-E3/5A.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,508
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA5J9.0A-E3/5A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR), 15.4 V clamping voltage at 5.0 A peak pulse current (IPPM), 500 W peak pulse power (PPPM), and operates from –55 °C to +150 °C junction temperature.
For engineers reviewing the SMA5J9.0A-E3/5A datasheet, SMA5J9.0A-E3/5A pinout, SMA5J9.0A-E3/5A application, or SMA5J9.0A-E3/5A equivalent, key selection criteria include clamping performance under 10/1000 μs surge, low leakage (<1.0 μA at VWM), AEC-Q101 qualification eligibility, RoHS-compliant matte tin terminations, and compatibility with automated SMT placement on standard 0.2" × 0.2" copper pads.
Technical Context
This TVS diode uses a glass-passivated silicon junction to achieve fast response time (<1.0 ns) and low incremental surge resistance, enabling effective suppression of ESD, lightning-induced transients, and inductive switching spikes. Its unidirectional polarity-marked by a cathode band-supports DC-biased protection paths without reverse conduction.
The device complies with ANSI/IEEE C62.35 for transient suppression and meets J-STD-020 MSL Level 1 (260 °C peak reflow), making it suitable for high-reliability commercial and automotive-grade assemblies when ordered with HE3 suffix variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before clamping begins; sets minimum system rail margin for reliable standby operation. |
| VBR (min/max) | 10.0 V / 11.1 V - Breakdown occurs within this range at 1.0 mA test current; ensures predictable turn-on threshold across production lots. |
| VC @ IPPM | 15.4 V at 5.0 A - Clamped voltage during 10/1000 μs surge; defines worst-case stress imposed on protected downstream ICs. |
| PPPM | 500 W - Peak pulse power handling capability; determines survivability against standardized lightning and EFT surges per IEC 61000-4-5. |
| ID @ VWM | <1.0 μA - Reverse leakage at stand-off voltage; critical for low-power sensor or battery-backed circuits where quiescent current must be minimized. |
| TJ max. | +150 °C - Maximum junction temperature rating; supports operation in under-hood automotive or industrial enclosures without derating at full power. |
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. Cathode indicated by a single band on the body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | DC return path for clamping current | Connected to system ground or lower-potential rail; carries full surge current during transient events. |
| Cathode | Protected line input terminal | Connected to the line being protected (e.g., 9 V supply rail); reverse-biased during normal operation, avalanches during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| MSL Level 1 rating | Allows single-reflow assembly without moisture sensitivity concerns-no baking required prior to SMT placement. |
| Low clamping ratio (VC/VBR ≈ 1.44) | Minimizes voltage overshoot during surge events, reducing risk of latch-up or gate oxide damage in protected MOSFETs or ICs. |
| AEC-Q101 qualification path | Available in HE3/HM3 variants for automotive applications requiring validated stress testing per stress test conditions. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 9 V auxiliary power supplies in vehicle infotainment modules from load-dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery feed and LDO input to clamp surges above 15.4 V while maintaining <1.0 μA leakage during sleep mode. Use Value: Prevents permanent damage to PMICs and microcontrollers during ISO 7637-2 Pulse 5a events without increasing standby current budget. | Use Scenario: Safeguarding analog outputs of pressure sensors in factory automation PLC I/O modules exposed to relay coil flyback. IC Role / Device Role / Timing Role: Standoff-rated TVS on 4–20 mA loop output line, absorbing 500 W pulses with sub-ns response to preserve signal integrity. Use Value: Maintains ±0.1% measurement accuracy by limiting transient-induced offset shift and avoiding post-surge calibration drift. |
| Consumer USB Power Input Protection | Telecom DC Feeder Line Protection |
Use Scenario: Overvoltage guard on 9 V wall-adapter input of smart home hubs subject to AC line coupling and ESD. IC Role / Device Role / Timing Role: First-line defense on DC input before buck converter, activated within 1 ns to limit voltage excursion to ≤15.4 V. Use Value: Eliminates need for secondary crowbar circuitry while meeting IEC 61000-4-2 Level 4 (8 kV contact) immunity requirements. | Use Scenario: Secondary surge protection on -48 V telecom DC distribution boards feeding remote radio units. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to system ground, handling repetitive 10/1000 μs surges up to 500 W without parameter shift. Use Value: Extends mean time between failures (MTBF) by >3× compared to Zener-based solutions due to lower thermal impedance (RθJL = 25 °C/W). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A-E3/5A | 400 W PPPM rating; higher clamping voltage (17.1 V at 5.0 A); same SMA package and VWM. | Lower energy handling limits suitability for IEC 61000-4-5 line surge; acceptable for ESD-only zones. | Select SMA5J9.0A-E3/5A when 500 W surge immunity is required; choose SMAJ9.0A-E3/5A only if board space constraints allow trade-off in clamping margin. |
| 1.5SMC9.0A | Same VWM and VBR range but in larger SMC (DO-214AB) package; 500 W rating; RθJA = 30 °C/W vs. 80 °C/W for SMA5J9.0A-E3/5A. | Better thermal dissipation enables sustained surge duty cycles; incompatible with fine-pitch SMA footprints. | Choose 1.5SMC9.0A for high-duty-cycle industrial controls; retain SMA5J9.0A-E3/5A for space-constrained consumer or automotive PCBs. |
Compared with SMAJ9.0A-E3/5A and 1.5SMC9.0A, the SMA5J9.0A-E3/5A delivers identical 9.0 V standoff with superior power density (500 W in SMA), tighter clamping (15.4 V), and optimized thermal resistance for compact layouts-making it the preferred choice for next-gen automotive ECUs and IoT edge nodes where footprint and surge margin are co-constrained.
Availability
SMA5J9.0A-E3/5A is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and consumer USB power input protection requiring stable component supply, RoHS compliance, and traceable sourcing.
Supply support for SMA5J9.0A-E3/5A 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, optoelectronics, and passive components with emphasis on reliability, power efficiency, and AEC-Q qualified solutions.
The SMA5J series is engineered for high-energy transient suppression in space-constrained environments, targeting automotive, industrial, and telecom applications where robust 500 W surge handling and low-profile SMT integration are mandatory.
FAQ
What is the maximum clamping voltage of the SMA5J9.0A-E3/5A under a 10/1000 μs surge?
The SMA5J9.0A-E3/5A clamps to a maximum of 15.4 V when subjected to a 5.0 A peak pulse current with a 10/1000 μs waveform. This value is measured at the specified test condition and represents the worst-case voltage seen by downstream circuitry during standardized surge events. The SMA5J9.0A-E3/5A maintains this clamping performance across its full operating temperature range from –55 °C to +150 °C.
Is the SMA5J9.0A-E3/5A RoHS-compliant and halogen-free?
Yes, the SMA5J9.0A-E3/5A carries the "E3" suffix, indicating it is RoHS-compliant and manufactured to commercial-grade specifications. It is not halogen-free; for halogen-free and RoHS-compliant versions, select the "M3" suffix variant (e.g., SMA5J9.0A-M3/5A). Both E3 and M3 meet JESD 201 Class 2 whisker resistance requirements and UL 94 V-0 flammability rating.
Does the SMA5J9.0A-E3/5A have AEC-Q101 qualification?
The base SMA5J9.0A-E3/5A is not AEC-Q101 qualified; however, Vishay offers AEC-Q101-qualified versions under the "HE3" (RoHS-compliant, automotive grade) and "HM3" (halogen-free, RoHS-compliant, automotive grade) ordering codes. These variants include extended stress testing and are marked with revision identifiers (e.g., SMA5J9.0AHE3_A/I). The SMA5J9.0A-E3/5A itself is rated for commercial use with TJ max = +150 °C.
What is the thermal resistance of the SMA5J9.0A-E3/5A, and how does it affect layout design?
The SMA5J9.0A-E3/5A 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. Its junction-to-lead resistance (RθJL) is 25 °C/W. To maintain safe operation at full 500 W surge rating, PCB layout must provide adequate copper area and thermal vias-especially for repeated surge events. Derating is required above TA = 25 °C per Figure 2 in the datasheet.
How does the SMA5J9.0A-E3/5A differ from the SMAJ9.0A-E3/5A in practical circuit protection?
The SMA5J9.0A-E3/5A provides 500 W peak pulse power versus 400 W for the SMAJ9.0A-E3/5A, and clamps at 15.4 V (vs. 17.1 V) under identical 5.0 A test conditions. This 1.7 V lower clamping voltage reduces stress on protected ICs, while the higher energy rating allows survival of more severe IEC 61000-4-5 surges. Both share the same SMA package and 9.0 V VWM, but the SMA5J9.0A-E3/5A is the preferred choice where margin and reliability are prioritized.
SMA5J9.0A-E3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 32.5A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J9.0A-E3/5A FAQ
1.How can I place an order for SMA5J9.0A-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J9.0A-E3/5A 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 SMA5J9.0A-E3/5A reliable?
The price and inventory of SMA5J9.0A-E3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J9.0A-E3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J9.0A-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J9.0A-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J9.0A-E3/5A?
SMA5J9.0A-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J9.0A-E3/5A 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 SMA5J9.0A-E3/5A?
For technical support, including SMA5J9.0A-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J9.0A-E3/5A requirements.
6.How does Aetrix verify that SMA5J9.0A-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J9.0A-E3/5A 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 SMA5J9.0A-E3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J9.0A-E3/5A?
All SMA5J9.0A-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J9.0A-E3/5A, 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 SMA5J9.0A-E3/5A part is unused and in its original packaging.
Return procedure for SMA5J9.0A-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J9.0A-E3/5A Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
