My Inquiry
My Account
Taiwan Semiconductor Corporation SMA6J26A
- Part No.:
- SMA6J26A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J26A.pdf
- Description:
- TVS DIODE 26VWM 40.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,577
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA6J26A from Taiwan Semiconductor is a 600W surface-mount transient voltage suppressor (TVS) diode with a working standoff voltage of 26V, breakdown voltage range 28.9–31.9V, and clamping voltage of 40.9V at 14.7A peak pulse current under 10/1000μs waveform; used for surge protection in DC/DC converters and automotive power modules.
For engineers reviewing the SMA6J26A datasheet, SMA6J26A pinout, SMA6J26A application, or SMA6J26A equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD, 10/1000μs pulse power derating at elevated ambient temperature, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, and DO-214AC (SMA) package thermal pad layout compatibility.
Technical Context
The SMA6J26A operates as a unidirectional avalanche diode with glass-passivated junction, enabling sub-1ps response time and stable breakdown characteristics over -55°C to +175°C junction temperature. Its single-die DO-214AC configuration supports automated placement and meets JESD201 Class 2 whisker resistance.
Designed for non-repetitive transient suppression, it delivers 600W peak pulse power per 10/1000μs waveform with 1.0μA max reverse leakage at 26V and 4W steady-state power dissipation. Polarity is marked by cathode band; terminals are matte tin-plated per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR @ IT=1mA | 28.9–31.9 V - Breakdown voltage range defining reliable avalanche onset threshold |
| VC @ IPPM=14.7A | 40.9 V - Clamped voltage during 10/1000μs surge, limiting stress on downstream circuitry |
| PPPM | 600 W - Peak pulse power handling capability per standard 10/1000μs waveform |
| IR @ VWM | 1.0 μA - Reverse leakage current ensuring minimal standby power loss |
| TJ Range | -55°C to +175°C - Operational junction temperature range supporting under-hood automotive use |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, single-anode/cathode configuration with cathode band marking. Weight: 0.060g. Molding compound rated UL 94V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction or surge clamping | Connected to ground or low-side reference in unidirectional TVS configuration |
| Cathode | Current exit point during reverse-biased clamping | Connected to protected line (e.g., 24V rail); cathode band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Sub-1ps response time | Enables effective suppression of fast ESD and lightning-induced transients before sensitive ICs are damaged |
| Glass-passivated junction | Ensures long-term reliability and stable VBR performance across temperature and humidity stress |
| ISO 7637-2 compliance (Pulse 1/2a/2b/3a/3b) | Validates suitability for automotive 12V/24V system-level surge immunity testing |
| DO-214AC mechanical footprint | Supports high-density PCB layouts and compatibility with standard SMA reflow profiles |
Applications
| Automotive Power Distribution | Industrial DC/DC Converters |
|---|---|
Use Scenario: Protection of 24V supply lines in body control modules against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between input rail and chassis ground. Use Value: Limits transient voltage to ≤40.9V, preventing damage to 36V-rated power management ICs downstream. | Use Scenario: Input surge protection for isolated 24V-to-5V DC/DC converters in factory automation controllers. IC Role / Device Role / Timing Role: Primary overvoltage clamp on primary-side input, activated within <1ps of surge onset. Use Value: Maintains converter uptime by absorbing 600W pulses without degradation across -40°C to +125°C ambient. |
| LED Driver Power Stage | Telecom Power Interface |
Use Scenario: Transient suppression on constant-current LED driver inputs exposed to field wiring surges. IC Role / Device Role / Timing Role: Standoff-rated TVS (26V) placed upstream of buck controller IC input. Use Value: Prevents latch-up in driver ICs by clamping to 40.9V while maintaining <1μA leakage at nominal 24V operation. | Use Scenario: Secondary-side protection on 24V telecom power interface cards subject to induced surges. IC Role / Device Role / Timing Role: Fast-response unidirectional clamp referenced to local ground plane. Use Value: Meets GR-1089-CORE Level 3 surge requirements with verified 10/1000μs waveform handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J26CA | Bidirectional variant; symmetric clamping for AC-coupled or floating rails | Required where differential or bidirectional surge risk exists (e.g., RS-485 data lines) | Select SMA6J26CA only if bidirectional clamping is needed; SMA6J26A is optimal for grounded-rail DC systems |
| SMC6J26A | Larger DO-214AB (SMC) package; higher thermal mass, same electrical specs | Preferred in high-temperature environments (>105°C ambient) or where board space allows larger footprint | Choose SMC6J26A when enhanced thermal dissipation or legacy SMC land pattern reuse is required |
Compared with SMA6J26CA and SMC6J26A, the SMA6J26A offers optimal cost, size, and thermal performance for unidirectional 24V DC rail protection-especially where DO-214AC footprint constraints and ISO 7637-2 Pulse 2b compliance are critical.
Availability
SMA6J26A is available at Aetrix Electronics and suitable for automotive power distribution, industrial DC/DC converters, LED driver power stages, and telecom power interfaces requiring stable component supply and full traceability.
Supply support for SMA6J26A 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power devices, TVS diodes, rectifiers, and MOSFETs.
The SMA6JxxA series was developed specifically for robust, high-reliability transient suppression in automotive and industrial 12V/24V systems, emphasizing ISO 7637-2 compliance, wide temperature operation, and automated assembly compatibility.
FAQ
What is the maximum clamping voltage of the SMA6J26A under standard test conditions?
The SMA6J26A has a maximum clamping voltage (VC) of 40.9 V when subjected to a 10/1000μs waveform with a peak pulse current (IPPM) of 14.7 A. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuitry during surge events. The SMA6J26A maintains this clamping performance across its specified operating temperature range.
Does the SMA6J26A meet automotive surge immunity standards?
Yes, the SMA6J26A meets ISO 7637-2 requirements for Pulse 1, 2a, 2b, 3a, and 3b waveforms-key tests for 12V and 24V automotive electrical systems. Its 600W peak pulse power rating, fast <1ps response, and -55°C to +175°C junction temperature range make it suitable for engine bay and power distribution module applications where SMA6J26A is deployed.
What is the polarity configuration of the SMA6J26A?
The SMA6J26A is a unidirectional TVS diode with cathode-marked polarity. The cathode band indicates the terminal connected to the protected line (e.g., 24V rail), while the anode connects to ground. This configuration ensures clamping only during reverse overvoltage events and blocks forward current except during surge conduction.
Can the SMA6J26A be used in place of SMA6J24A or SMA6J28A?
No-SMA6J26A is not interchangeable with SMA6J24A or SMA6J28A due to distinct VWM (26V), VBR, and clamping voltage specifications. Substituting alters the protection margin relative to system operating voltage. For example, SMA6J24A (24V VWM) risks premature conduction in 24V nominal systems, while SMA6J28A (28V VWM) may fail to clamp fast transients below 28V. SMA6J26A must be selected based on exact 26V standoff requirement.
What is the moisture sensitivity level (MSL) and reflow profile guidance for SMA6J26A?
The SMA6J26A has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it is not moisture-sensitive and requires no dry pack or floor life limitations. It supports standard lead-free reflow profiles with peak temperatures up to 260°C. The DO-214AC (SMA) package's matte tin-plated leads comply with J-STD-002 for solderability, and the SMA6J26A exhibits no popcorning or delamination under IPC-J-STD-020 conditions.
SMA6J26A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AC, SMA
- Series:
- SMA6J
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 26V
- Voltage - Breakdown (Min):
- 28.9V
- Voltage - Clamping (Max) @ Ipp:
- 40.9V
- Current - Peak Pulse (10/1000µs):
- 14.7A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA6J26A FAQ
1.How can I place an order for SMA6J26A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J26A 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 SMA6J26A reliable?
The price and inventory of SMA6J26A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J26A is usually 5 days.
3.What payment methods are accepted for SMA6J26A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J26A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J26A?
SMA6J26A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J26A 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 SMA6J26A?
For technical support, including SMA6J26A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J26A requirements.
6.How does Aetrix verify that SMA6J26A is sourced from the original manufacturer or authorized distributors?
All SMA6J26A 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 SMA6J26A meets industry standards.
7.What is the process for return or replacement of SMA6J26A?
All SMA6J26A units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J26A, 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 SMA6J26A part is unused and in its original packaging.
Return procedure for SMA6J26A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6J26A 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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
