My Inquiry
My Account
Taiwan Semiconductor Corporation SMA6J26AH
- Part No.:
- SMA6J26AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J26AH.pdf
- Description:
- TVS DIODE 26VWM 40.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,698
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA6J26AH from Taiwan Semiconductor is a 600W surface-mount transient voltage suppressor (TVS) diode with a 26V working stand-off voltage, 28.9–31.9V breakdown range at 1mA, and 40.9V maximum clamping voltage at 14.7A peak pulse current; designed for automotive-grade surge protection in DC/DC converters and power supplies.
For engineers reviewing the SMA6J26AH datasheet, SMA6J26AH pinout, SMA6J26AH application, or SMA6J26AH equivalent, key selection criteria include its AEC-Q101 qualification, DO-214AC (SMA) package compatibility, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, and 175°C junction temperature rating for under-hood automotive environments.
Technical Context
This unidirectional TVS diode uses a glass-passivated junction to achieve sub-1ps response time and precise clamping behavior under 10/1000μs transients. Its single-die configuration in DO-214AC supports automated placement and meets JESD201 Class 2 whisker resistance.
The device operates across –55°C to +175°C, with 4W steady-state power dissipation and 50A non-repetitive forward surge capability. It delivers stable clamping performance without degradation under repeated ISO 7637-2 pulses, validated per AEC-Q101 stress test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26 V - Maximum continuous reverse voltage before leakage exceeds 1 µA; sets operating margin for 24V automotive systems. |
| VBR min/max | 28.9 V / 31.9 V @ 1 mA - Confirmed breakdown threshold ensures reliable turn-on during transients above system nominal voltage. |
| VC @ IPPM | 40.9 V @ 14.7 A - Clamping voltage limits downstream IC stress during 600W 10/1000μs surges. |
| PPPM | 600 W - Peak pulse power handling per standard 10/1000μs waveform; defines transient energy absorption capacity. |
| TJ max | 175 °C - Maximum junction temperature enables deployment in high-ambient under-hood locations without derating. |
| IR @ VWM | 1 µA - Low reverse leakage preserves efficiency in always-on power rails and battery-connected circuits. |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode-indicating band; matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance. Weight: 0.060 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction | Connected to ground or low-side reference in unidirectional TVS configuration. |
| Cathode | Current exit during reverse clamping | Connected to protected line (e.g., 24V rail); polarity marked by band on package body. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, HTRB, and ESD testing per stress requirements. |
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments. |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling). |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking; compatible with J-STD-020 moisture handling guidelines. |
Applications
| Automotive Power Distribution | Industrial DC/DC Converters |
|---|---|
Use Scenario: Protection of 24V supply lines feeding ECUs, sensors, and actuators against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between input rail and chassis ground to divert surge energy away from sensitive circuitry. Use Value: Limits clamped voltage to 40.9V, preventing damage to 36V-rated regulators and microcontrollers in AEC-Q100 Grade 2 systems. | Use Scenario: Input-stage surge suppression in isolated 48V-to-12V industrial DC/DC modules exposed to long cable runs and motor drive noise. IC Role / Device Role / Timing Role: Primary transient shunt on primary-side bus, activated within <1ps to clamp spikes before they propagate through transformer isolation. Use Value: 600W peak power rating absorbs multiple ISO 7637-2 Pulse 1 events without degradation, supporting >10-year field life. |
| LED Driver Power Inputs | On-Board Charger (OBC) Auxiliary Rails |
Use Scenario: Overvoltage protection for constant-current LED drivers in commercial lighting systems subject to AC line surges and hot-swap events. IC Role / Device Role / Timing Role: Standoff-mode protector on DC input, blocking normal operation up to 26V while clamping transients above 28.9V. Use Value: 1µA leakage at VWM minimizes standby power loss; DO-214AC footprint allows dense layout near connector entry points. | Use Scenario: Secondary-side rail protection in electric vehicle on-board chargers, safeguarding 12V auxiliary control logic from CAN/LIN bus coupling and relay bounce. IC Role / Device Role / Timing Role: Fast-response clamp on isolated 12V output, coordinated with upstream fusing to meet ISO 16750-2 electrical environment requirements. Use Value: 175°C TJ max enables placement near heat-generating SiC gate drivers without thermal derating of clamping performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J26A | Same electrical specs but not AEC-Q101 qualified; lacks automotive stress validation and ISO 7637-2 documentation. | Restricted to industrial/commercial use; unsuitable for automotive OEM or Tier-1 designs requiring AEC certification. | Select SMA6J26A only for cost-sensitive non-automotive applications where qualification traceability is not required. |
| SMB6J26A | Identical VWM/VBR/VC ratings but in DO-214AA (SMB) package - 2.5mm wider body, higher thermal mass, 1.5× larger PCB footprint. | Preferred where board space permits and higher steady-state power dissipation (5W vs. 4W) is needed for extended surge duty cycles. | Choose SMB6J26A when thermal management outweighs size constraints, especially in high-temperature ambient designs. |
Compared with SMA6J26A and SMB6J26A, the SMA6J26AH uniquely combines AEC-Q101 qualification, DO-214AC compactness, and full ISO 7637-2 compliance - making it the only option qualified for automotive front-end power protection without layout or reliability trade-offs.
Availability
SMA6J26AH is available at Aetrix Electronics and suitable for automotive electronics, industrial power conversion, and LED driver designs requiring stable component supply with full AEC-Q101 traceability and ISO 7637-2 compliance.
Supply support for SMA6J26AH 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, serving global automotive, industrial, and consumer markets since 1979.
The SMA6Jx AH series belongs to TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for robust transient suppression in automotive power networks and industrial DC systems where reliability under extreme thermal and electrical stress is mandatory.
FAQ
What is the clamping voltage of SMA6J26AH at its rated peak pulse current?
The SMA6J26AH has a maximum clamping voltage (VC) of 40.9 V at 14.7 A peak pulse current (IPPM), measured under the standard 10/1000 μs waveform. This value ensures downstream components see no more than 40.9 V during worst-case transients, critical for protecting 36V-rated ICs in 24V automotive systems. The SMA6J26AH datasheet confirms this parameter under Electrical Specifications Table.
Is SMA6J26AH qualified for automotive applications?
Yes, SMA6J26AH is AEC-Q101 qualified and explicitly tested to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements. Its qualification includes temperature cycling, high-temperature reverse bias, and ESD testing per automotive stress standards. The "AH" suffix denotes the AEC-Q101-compliant version, distinguishing it from non-automotive variants like SMA6J26A.
What package does SMA6J26AH use, and what are its mechanical highlights?
SMA6J26AH uses the DO-214AC (SMA) surface-mount package. Key mechanical features include matte tin-plated leads compliant with J-STD-002 solderability, JESD201 Class 2 whisker resistance, UL 94V-0 molding compound, and cathode polarity indicated by a visible band. Its 0.060 g weight and low-profile form factor support high-density automated assembly in automotive PCBs.
How does SMA6J26AH differ from SMA6J26A?
SMA6J26AH and SMA6J26A share identical electrical parameters (VWM = 26 V, VBR = 28.9–31.9 V, VC = 40.9 V), but only SMA6J26AH carries AEC-Q101 qualification and documented ISO 7637-2 compliance. SMA6J26A lacks automotive stress validation and is intended for industrial/commercial use. The "H" suffix in SMA6J26AH signals full automotive-grade traceability and test reporting.
What is the maximum operating junction temperature for SMA6J26AH?
The SMA6J26AH has a maximum operating junction temperature (TJ max) of +175°C, enabling reliable operation in under-hood automotive environments and high-ambient industrial settings. This rating is confirmed in the Absolute Maximum Ratings table and supports uninterrupted clamping performance without thermal derating up to 175°C - a key differentiator versus standard industrial TVS diodes rated at 150°C.
SMA6J26AH 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA6J26AH FAQ
1.How can I place an order for SMA6J26AH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J26AH 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 SMA6J26AH reliable?
The price and inventory of SMA6J26AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J26AH is usually 5 days.
3.What payment methods are accepted for SMA6J26AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J26AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J26AH?
SMA6J26AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J26AH 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 SMA6J26AH?
For technical support, including SMA6J26AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J26AH requirements.
6.How does Aetrix verify that SMA6J26AH is sourced from the original manufacturer or authorized distributors?
All SMA6J26AH 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 SMA6J26AH meets industry standards.
7.What is the process for return or replacement of SMA6J26AH?
All SMA6J26AH units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J26AH, 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 SMA6J26AH part is unused and in its original packaging.
Return procedure for SMA6J26AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6J26AH 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…
