My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMA5J26HE3/61
- Part No.:
- SMA5J26HE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J26HE3/61.pdf
- Description:
- TVS DIODE 26VWM 46.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,358
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA5J26HE3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor diode in DO-214AC (SMA) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 26 V standoff voltage (VWM), 28.9–31.9 V breakdown range (VBR), 42.1 V clamping voltage at 11.9 A peak pulse current (IPPM), and 500 W peak pulse power (10/1000 µs waveform). It is AEC-Q101 qualified and used in automotive power supply input stages.
For engineers reviewing the SMA5J26HE3/61 datasheet, SMA5J26HE3/61 pinout, SMA5J26HE3/61 application, or SMA5J26HE3/61 equivalent, key selection criteria include unidirectional polarity, 150 °C max junction temperature, RoHS-compliant matte tin leads, MSL Level 1 rating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a silicon avalanche diode optimized for transient suppression in DC circuits. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while its low incremental surge resistance enables effective clamping during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a).
The SMA5J26HE3/61 is rated for 40 A non-repetitive forward surge current (8.3 ms half-sine) and exhibits typical thermal resistance of 25 °C/W (junction-to-lead) and 80 °C/W (junction-to-ambient), supporting reliable operation under repeated surge stress when mounted per recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 28.9 V / 31.9 V - Breakdown occurs within this range at 1 mA test current, defining turn-on threshold |
| VC @ IPPM | 42.1 V - Clamped voltage seen by protected circuit during 11.9 A 10/1000 µs surge |
| PPPM | 500 W - Peak surge power handling capability under standardized waveform |
| IFSM | 40 A - Max non-repetitive forward surge current (8.3 ms half-sine), critical for load-dump immunity |
| TJ max | 150 °C - Maximum allowable junction temperature, enabling use in under-hood automotive environments |
| Leakage @ VWM | <1.0 µA - Ensures minimal standby power loss and no interference with low-current sensor biasing |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, molded plastic case with matte tin-plated leads; meets UL 94 V-0 flammability rating and J-STD-002 solderability requirements. Cathode indicated by band at one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration |
| Cathode (banded end) | Avalanche conduction terminal | Connected to protected line (e.g., 24 V rail); conducts when voltage exceeds VBR to shunt surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable, repeatable breakdown voltage and long-term reliability under thermal cycling |
| AEC-Q101 qualification | Validated for automotive-grade stress testing including temperature cycling, HTRB, and ESD, enabling use in safety-critical ECUs |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
| Low-profile DO-214AC package | Enables high-density PCB layouts and automated pick-and-place assembly with 0.208" × 0.157" footprint |
| 500 W peak pulse power | Provides robust protection against ISO 7637-2 pulses 1 (inductive switch-off) and 5a (load dump) in 12/24 V systems |
Applications
| Automotive Power Input Protection | Industrial DC Power Rail Clamp |
|---|---|
Use Scenario: Protecting engine control unit (ECU) 24 V supply input from load dump transients up to 60 V and 100 ms duration. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and input filter capacitor, conducting only during overvoltage events. Use Value: Limits voltage to ≤42.1 V during 11.9 A surges, preventing damage to downstream DC/DC converters and microcontrollers. | Use Scenario: Safeguarding programmable logic controller (PLC) 24 V field power terminals against inductive kickback from solenoid switching. IC Role / Device Role / Timing Role: Standoff-clamp protector installed across field output terminals, absorbing energy from L·di/dt transients. Use Value: Withstands 40 A 8.3 ms surge and clamps at 42.1 V, preserving MOSFET drivers and isolation barriers. |
| Telecom DC Feeder Protection | Consumer Appliance Motor Drive Clamp |
Use Scenario: Shielding PoE-powered network switches from lightning-induced surges on 48 V DC feeder lines. IC Role / Device Role / Timing Role: Primary surge clamp on DC input stage, coordinated with upstream GDT and downstream π-filter. Use Value: Fast response time and 500 W rating enable effective suppression of 10/1000 µs telecom surges without thermal runaway. | Use Scenario: Suppressing back-EMF spikes generated by brushed DC motors in smart home appliances (e.g., vacuum cleaners). IC Role / Device Role / Timing Role: Unidirectional TVS mounted across motor terminals, conducting only during negative flyback events. Use Value: 26 V VWM allows normal 24 V operation while clamping spikes to 42.1 V, extending motor driver IC lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J26A-E3/61 | Commercial-grade variant; lacks AEC-Q101 qualification and uses E3 whisker test class 1A vs. HE3 class 2 | Not suitable for automotive under-hood use; acceptable for industrial/commercial power supplies | Select SMA5J26HE3/61 for automotive applications requiring AEC-Q101; choose SMA5J26A-E3/61 where qualification is not mandated |
| SMC5J26A | Larger DO-214AB (SMC) package; higher thermal mass yields RθJA = 35 °C/W vs. 80 °C/W, but same electrical specs | Better suited for high-repetition surge environments due to improved heat dissipation | Choose SMA5J26HE3/61 for space-constrained SMT layouts; select SMC5J26A when board area permits and thermal margin is critical |
Compared with SMA5J26A-E3/61, the SMA5J26HE3/61 adds automotive qualification and enhanced whisker resistance; versus SMC5J26A, it trades thermal performance for smaller footprint-making SMA5J26HE3/61 optimal for AEC-Q101-compliant, high-density automotive PCBs.
Availability
SMA5J26HE3/61 is available at Aetrix Electronics and suitable for automotive electronics, industrial power supplies, and telecom infrastructure requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMA5J26HE3/61 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, and transient protection devices with emphasis on reliability and automotive-grade performance.
The SMA5J series is part of Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-power-density, surface-mount surge suppression in harsh-environment applications including automotive power distribution and industrial control systems.
FAQ
What is the polarity configuration of the SMA5J26HE3/61?
The SMA5J26HE3/61 is a unidirectional transient voltage suppressor diode. Its cathode is marked by a band at one end of the DO-214AC package, and it conducts only when the cathode is at a higher potential than the anode-making it suitable for DC rail protection where polarity is fixed. This differs from bi-directional variants (e.g., SMA5J26CA) that protect AC or bidirectional signals.
Does the SMA5J26HE3/61 meet automotive qualification standards?
Yes, the SMA5J26HE3/61 is AEC-Q101 qualified, as confirmed by Vishay's documentation. The "HE3" suffix denotes RoHS compliance and AEC-Q101 qualification, including stress tests for temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge. This makes SMA5J26HE3/61 suitable for under-hood automotive applications such as body control modules and powertrain ECUs.
What is the maximum clamping voltage of the SMA5J26HE3/61 during a surge event?
The SMA5J26HE3/61 has a maximum clamping voltage (VC) of 42.1 V at its rated peak pulse current (IPPM) of 11.9 A under the standard 10/1000 µs waveform. This value is measured with the device mounted on 0.2" × 0.2" copper pads per JEDEC guidelines and defines the upper voltage limit imposed on the protected circuit during transient suppression.
How does the thermal performance of the SMA5J26HE3/61 compare to larger package alternatives?
The SMA5J26HE3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W and junction-to-lead (RθJL) of 25 °C/W. While adequate for single-event surge protection, its DO-214AC package offers less thermal mass than DO-214AB (SMC) alternatives like SMC5J26A (RθJA = 35 °C/W). For high-frequency surge repetition, board-level copper area and airflow become critical for SMA5J26HE3/61 reliability.
What is the meaning of the "/61" suffix in SMA5J26HE3/61?
Within Vishay's ordering nomenclature, the "/61" suffix in SMA5J26HE3/61 indicates the preferred packaging format: 7-inch diameter plastic tape and reel containing 1800 units. This format supports automated SMT assembly and is distinct from "/5A", which denotes 13-inch reels with 7500 units. The "/61" designation does not affect electrical or mechanical specifications of the SMA5J26HE3/61 device itself.
SMA5J26HE3/61 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:
- 1
- Bidirectional Channels:
- -
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J26HE3/61 FAQ
1.How can I place an order for SMA5J26HE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J26HE3/61 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 SMA5J26HE3/61 reliable?
The price and inventory of SMA5J26HE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J26HE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J26HE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J26HE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J26HE3/61?
SMA5J26HE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J26HE3/61 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 SMA5J26HE3/61?
For technical support, including SMA5J26HE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J26HE3/61 requirements.
6.How does Aetrix verify that SMA5J26HE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J26HE3/61 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 SMA5J26HE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J26HE3/61?
All SMA5J26HE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J26HE3/61, 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 SMA5J26HE3/61 part is unused and in its original packaging.
Return procedure for SMA5J26HE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J26HE3/61 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 …
