My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMA5J26C-E3/5A
- Part No.:
- SMA5J26C-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J26C-E3/5A.pdf
- Description:
- TVS DIODE 26VWM 46.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,388
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA5J26C-E3/5A from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for robust overvoltage protection on signal and power lines. It features a 26 V stand-off voltage (VWM), 42.1 V maximum clamping voltage (VC) at 11.9 A peak pulse current (IPPM), and 500 W peak pulse power (10/1000 µs waveform), making it suitable for automotive sensor line protection and industrial I/O interface surge suppression.
For engineers reviewing the SMA5J26C-E3/5A datasheet, SMA5J26C-E3/5A pinout, SMA5J26C-E3/5A application, or SMA5J26C-E3/5A equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, RoHS-compliant matte tin plating, and compatibility with automated SMT placement on standard 5.0 mm × 5.0 mm copper pads.
Technical Context
The SMA5J26C-E3/5A operates as a bi-directional avalanche breakdown device, with symmetrical electrical characteristics in both polarities. Its glass-passivated junction ensures stable breakdown behavior and low incremental surge resistance, while its thermal resistance (RθJA = 80 °C/W) supports operation up to 150 °C junction temperature under defined PCB layout conditions.
Designed per ANSI/IEEE C62.35 standards, it delivers sub-nanosecond response to transients and meets MSL Level 1 (260 °C reflow peak). The CA suffix confirms bi-directional functionality - no polarity marking, and all electrical specs (VBR, VC, IPPM) apply identically in either direction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 24 V nominal systems. |
| VBR (min/max) | 28.9 V / 31.9 V - Breakdown voltage range at 1 mA test current; ensures reliable turn-on above system operating voltage. |
| VC @ IPPM | 42.1 V - Clamping voltage at 11.9 A peak pulse current; limits downstream IC stress during 500 W transient events. |
| PPPM | 500 W - Peak pulse power handling (10/1000 µs waveform); enables protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges. |
| IPPM | 11.9 A - Peak pulse current corresponding to VC; determines minimum trace width and PCB pad sizing for energy dissipation. |
| TJ max | 150 °C - Maximum junction temperature; requires thermal design with ≥5.0 mm × 5.0 mm copper pads per terminal per Vishay spec. |
| Package | DO-214AC (SMA) - Surface-mount package with 2.54 mm lead pitch; compatible with standard 7" and 13" tape-and-reel feeders (E3/5A = 7500 pcs/reel). |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with two axial leads, no polarity marking for bi-directional operation. Dimensions: 4.93 mm × 2.92 mm × 2.29 mm (L × W × H), cathode band omitted per CA designation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No functional distinction between terminals; either lead connects to protected line, other to ground or reference rail. |
| Case (plastic body) | Non-conductive isolation | Provides electrical insulation and mechanical mounting; no thermal or electrical connection to die. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood and chassis applications per stress test requirements including HTOL, TCT, and ESD. |
| Glass passivated junction | Enhances long-term reliability and stability of VBR under thermal cycling and humidity exposure. |
| MSL Level 1 (260 °C) | Enables single-reflow assembly without moisture sensitivity concerns; eliminates bake requirement prior to SMT. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD, inductive switch-off), improving clamping precision. |
| RoHS-compliant matte tin plating | Ensures solderability per J-STD-002/JESD 22-B102 and whisker resistance per JESD 201 Class 1A (E3 suffix). |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in 12 V/24 V vehicle subsystems. IC Role / Device Role / Timing Role: Bi-directional TVS clamp placed between signal line and chassis ground, absorbing ±100 V/500 W pulses without degradation. Use Value: Maintains signal integrity during ISO 7637-2 Pulse 5a (load dump) by limiting voltage to ≤42.1 V, preventing damage to 3.3 V/5 V interface ICs. | Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to field wiring surges from motor contactors and solenoid valves. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels, mounted directly at connector entry point before optocoupler or MCU GPIO. Use Value: Withstands repeated 500 W transients per IEC 61000-4-5 (Level 4), enabling >100,000 surge cycles without parameter drift due to glass-passivated junction. |
| Telecom Line Interface Protection | Consumer Appliance Power Supply Clamp |
Use Scenario: Shielding RS-485/RS-232 transceivers in base station backhaul equipment from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT), providing fast-response clamping (<1 ns) to limit residual voltage to safe levels. Use Value: Delivers 42.1 V clamping at 11.9 A, reducing let-through energy to <10 mJ - sufficient to protect 5 V tolerant transceivers rated for 15 V abs max. | Use Scenario: Suppressing switching spikes on 24 V auxiliary rails in smart home hubs and white goods control boards during relay or triac commutation. IC Role / Device Role / Timing Role: Low-profile surface-mount clamp across VCC-GND rails near microcontroller power pins, replacing bulkier through-hole alternatives. Use Value: Enables compact 4.93 mm × 2.92 mm footprint while maintaining 500 W surge rating - critical for space-constrained appliance PCBs with tight thermal budgets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J26CA-E3/5A | Identical specifications and packaging; alternate marking format (CA vs C) reflects same bi-directional device per Vishay documentation. | No functional difference; used interchangeably in BOMs where legacy part numbering is maintained. | Select SMA5J26C-E3/5A when referencing current Vishay preferred P/N list; SMA5J26CA-E3/5A is functionally identical but less commonly stocked. |
| SMCJ26CA | Same VWM/VC ratings but in larger DO-214AB (SMC) package; higher thermal mass (RθJA = 35 °C/W) and 1500 W PPPM. | Used where higher surge endurance or board-level heat spreading is required; not drop-in due to 7.11 mm × 6.22 mm footprint vs. SMA's 4.93 mm × 2.92 mm. | Choose SMCJ26CA only if system-level testing shows 500 W insufficient; otherwise SMA5J26C-E3/5A offers optimal size/power density for space-constrained designs. |
Compared with SMA5J26CA-E3/5A (identical function, alternate marking) and SMCJ26CA (higher-power, larger package), the SMA5J26C-E3/5A delivers best-in-class power density for bi-directional 24 V system protection - enabling smaller PCB area, lower assembly cost, and full AEC-Q101 compliance without sacrificing clamping performance.
Availability
SMA5J26C-E3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line drivers, and consumer appliance power rails requiring stable component supply and AEC-Q101 assurance.
Supply support for SMA5J26C-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, MOSFETs, and protection devices with emphasis on reliability, automotive qualification, and high-volume manufacturability.
The SMA5J series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where AEC-Q101 compliance and consistent clamping performance are mandatory.
FAQ
What does the "C" suffix in SMA5J26C-E3/5A indicate?
The "C" suffix in SMA5J26C-E3/5A denotes bi-directional functionality, confirming symmetrical clamping behavior in both polarities. This matches the "CA" variant designation in Vishay's datasheet - the "C" and "CA" forms are functionally identical, with "C" being the current preferred marking per Vishay's ordering documentation. The SMA5J26C-E3/5A has no polarity marking on the DO-214AC package body.
Is SMA5J26C-E3/5A qualified for automotive use?
Yes, SMA5J26C-E3/5A is AEC-Q101 qualified, having passed stress tests including high-temperature operating life (HTOL), temperature cycling (TCT), and electrostatic discharge (HBM/MM). Its construction - glass-passivated junction, matte tin plating, and MSL Level 1 rating - meets automotive underhood and chassis environmental requirements. The E3 suffix also satisfies JESD 201 Class 1A whisker resistance.
What is the maximum clamping voltage of SMA5J26C-E3/5A and at what current?
The SMA5J26C-E3/5A has a maximum clamping voltage (VC) of 42.1 V at a peak pulse current (IPPM) of 11.9 A, measured using the standardized 10/1000 µs double-exponential waveform. This value is guaranteed across the full operating temperature range (–55 °C to +150 °C) when mounted per Vishay's recommended 5.0 mm × 5.0 mm copper pad layout.
Can SMA5J26C-E3/5A replace uni-directional TVS diodes like SMA5J26A-E3/5A?
No - SMA5J26C-E3/5A is strictly bi-directional and lacks polarity marking, while SMA5J26A-E3/5A is uni-directional with a cathode band. Substituting them requires circuit review: SMA5J26C-E3/5A may be used in AC-coupled or floating lines, but cannot replace SMA5J26A-E3/5A in DC-biased unidirectional paths without risking forward conduction or incorrect clamping behavior.
What PCB layout guidance applies to SMA5J26C-E3/5A for optimal thermal performance?
Vishay specifies that SMA5J26C-E3/5A must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 500 W pulse power and maintain RθJA = 80 °C/W. Thermal vias under pads and internal ground planes further reduce junction temperature. Reducing pad size de-rates power handling - e.g., 2.5 mm × 2.5 mm pads reduce IPPM by ~35% per Figure 2 in the datasheet.
SMA5J26C-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 26V
- Voltage - Breakdown (Min):
- 28.9V
- Voltage - Clamping (Max) @ Ipp:
- 46.6V
- Current - Peak Pulse (10/1000µs):
- 10.7A
- 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)
SMA5J26C-E3/5A FAQ
1.How can I place an order for SMA5J26C-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J26C-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 SMA5J26C-E3/5A reliable?
The price and inventory of SMA5J26C-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 SMA5J26C-E3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J26C-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J26C-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J26C-E3/5A?
SMA5J26C-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J26C-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 SMA5J26C-E3/5A?
For technical support, including SMA5J26C-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J26C-E3/5A requirements.
6.How does Aetrix verify that SMA5J26C-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J26C-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 SMA5J26C-E3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J26C-E3/5A?
All SMA5J26C-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J26C-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 SMA5J26C-E3/5A part is unused and in its original packaging.
Return procedure for SMA5J26C-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J26C-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 …
