My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMAJ60A-E3/5A
- Part No.:
- SMAJ60A-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ60A-E3/5A.pdf
- Description:
- TVS DIODE 60VWM 96.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,452
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMAJ60A-E3/5A from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping fast-rising ESD and surge transients on power and signal lines. It features 60 V stand-off voltage (VWM), 66.7–73.7 V breakdown voltage (VBR) at 1 mA, 96.8 V maximum clamping voltage (VC) at 4.1 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive power rail protection and industrial sensor interface circuits.
For engineers reviewing the SMAJ60A-E3/5A datasheet, SMAJ60A-E3/5A pinout, SMAJ60A-E3/5A application, or SMAJ60A-E3/5A equivalent, key selection criteria include unidirectional polarity, 120 °C/W junction-to-ambient thermal resistance, AEC-Q101 qualification eligibility (via HE3 suffix variants), RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamping device in parallel with protected circuitry, entering avalanche conduction when reverse voltage exceeds VBR. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at 60 V), while the low incremental surge resistance enables effective energy diversion during 8.3 ms half-sine surges up to 40 A (IFSM).
The SMAJ60A-E3/5A is rated for -55 °C to +150 °C operating junction temperature, meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), and delivers repeatable clamping performance under 0.01% duty cycle repetitive transients - making it suitable for automotive body control modules and industrial PLC I/O protection where reliability under thermal cycling and surge stress is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC/AC bias margin for protected line. |
| VBR (min/max) | 66.7 V / 73.7 V at 1 mA - Confirmed breakdown range ensuring predictable turn-on threshold across production lot. |
| VC @ IPPM | 96.8 V at 4.1 A - Clamped voltage during 10/1000 μs surge; determines maximum overvoltage seen by downstream ICs. |
| PPPM | 400 W - Peak pulse power handling capability; validates robustness against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges. |
| IFSM | 40 A - Non-repetitive forward surge current rating; supports protection of rectifier-fed rails during load dump events. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments without derating. |
| RθJA | 120 °C/W - Thermal resistance junction-to-ambient on standard 0.2" × 0.2" pads; informs PCB copper area requirements for thermal management. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, unidirectional polarity with cathode band marking. Dimensions: 4.50 mm × 2.79 mm × 2.29 mm (L × W × H); weight: 0.064 g; UL 94 V-0 compliant molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or lower-potential rail; completes clamping loop during transient events. |
| Cathode | Reverse-biased terminal / Clamping node | Connected to protected line (e.g., 12 V supply); conducts avalanche current when VLINE > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Validated clamping capacity for automotive load dump and inductive switching transients per ISO 7637-2. |
| Glass passivated chip junction | Ensures long-term stability of VBR and low leakage drift over temperature and lifetime. |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free reflow assembly without popcorn or delamination risk. |
| RoHS-compliant matte tin plating | Guarantees solderability per J-STD-002 and whisker resistance per JESD 201 Class 2. |
| Low profile SMA package | 0.090" height allows dense layout in space-constrained ECUs and sensor nodes. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs in body control modules against load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between VIN and GND, responding within <1 ps to limit voltage to ≤96.8 V during 400 W surges. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V LDOs and MCU VDD pins during ISO 7637-2 Pulse 5a events. |
Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA current loops) in industrial pressure transmitters exposed to field wiring surges. IC Role / Device Role / Timing Role: Parallel-connected TVS on output line, conducting only during overvoltage events while maintaining <1.0 μA leakage at 60 V DC bias. Use Value: Maintains signal integrity and avoids false triggering of downstream ADCs during IEC 61000-4-5 2 kV surges. |
| Consumer Device USB Port Protection | Telecom Equipment DC Power Input |
|
Use Scenario: Secondary-level surge suppression on VBUS line of USB 2.0 host ports in set-top boxes and smart displays. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing ESD (IEC 61000-4-2 ±15 kV contact) and cable discharge events before reaching USB PHY. Use Value: Complements primary polymer PTC and capacitive filtering to meet USB-IF compliance without degrading signal rise time. |
Use Scenario: Front-end transient suppression on -48 V DC input of telecom base station power supplies. IC Role / Device Role / Timing Role: Unidirectional TVS configured anode-to-rail to clamp negative-going surges induced by lightning-induced coupling on telecom lines. Use Value: Limits voltage excursion to ≤96.8 V during 10/1000 μs surges, protecting upstream DC/DC converter MOSFETs and controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ60A-M3/5A | Halogen-free, RoHS-compliant variant with identical electrical specs and SMA package. | No functional difference; selected when halogen-free material compliance is mandated by OEM or regional regulation. | Direct drop-in replacement for SMAJ60A-E3/5A where halogen-free bill-of-materials is required. |
| SMAJ60CA-E3/5A | Bidirectional version with same VWM (60 V), VBR (66.7–73.7 V), and VC (96.8 V), but symmetrical clamping in both polarities. | Required for AC-coupled or floating signal lines (e.g., RS-485, CAN bus) where bidirectional transients occur. | Select SMAJ60CA-E3/5A only when protecting differential or AC-biased nodes; not interchangeable with SMAJ60A-E3/5A due to polarity mismatch. |
Compared with SMAJ60A-E3/5A, the M3 variant offers identical surge performance with halogen-free construction, while the CA variant provides bidirectional clamping essential for differential interfaces - neither replaces the unidirectional SMAJ60A-E3/5A in grounded DC rail applications without circuit redesign.
Availability
SMAJ60A-E3/5A is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom power input protection requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMAJ60A-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, ruggedness, and automotive-grade qualification.
The SMAJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where consistent clamping performance and AEC-Q101 readiness are mandatory.
FAQ
What is the maximum clamping voltage of the SMAJ60A-E3/5A under a 10/1000 μs surge?
The SMAJ60A-E3/5A has a maximum clamping voltage (VC) of 96.8 V at 4.1 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The SMAJ60A-E3/5A maintains this clamping performance across its specified operating temperature range and is validated per IEC 61000-4-5 test methodology.
Is the SMAJ60A-E3/5A AEC-Q101 qualified?
The SMAJ60A-E3/5A itself is not AEC-Q101 qualified; however, Vishay offers AEC-Q101-qualified versions under the HE3 and HM3 suffixes (e.g., SMAJ60AHE3_A/I). These variants share identical electrical characteristics and SMA package but undergo additional stress testing per AEC-Q101. For automotive applications requiring formal qualification, specify the HE3 or HM3 variant - the SMAJ60A-E3/5A remains suitable for commercial and industrial use where AEC-Q101 is not mandated.
What is the thermal resistance of the SMAJ60A-E3/5A, and how does it affect PCB layout?
The SMAJ60A-E3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value directly impacts PCB copper area design: reducing RθJA requires larger thermal pads or internal planes. For sustained power dissipation above 1 W, thermal vias and multi-layer copper pours are recommended. The SMAJ60A-E3/5A's RθJA is measured under standardized conditions and must be recalculated for actual board stack-up.
Can the SMAJ60A-E3/5A be used in bidirectional signal protection?
No - the SMAJ60A-E3/5A is a unidirectional TVS diode, with polarity marked by a cathode band; it conducts only in reverse bias and blocks forward current beyond ~3.5 V. For bidirectional signal lines such as RS-485, CAN, or AC-coupled audio, the SMAJ60CA-E3/5A (bidirectional variant) must be used instead. Using SMAJ60A-E3/5A on bidirectional paths risks forward conduction, signal distortion, or failure to clamp negative transients.
What is the standoff voltage and why is it critical for selecting the SMAJ60A-E3/5A?
The standoff voltage (VWM) of the SMAJ60A-E3/5A is 60 V - the maximum continuous reverse voltage it can block without significant leakage (<1.0 μA). This parameter is critical because VWM must exceed the normal operating voltage of the protected line (e.g., 12 V, 24 V, or 48 V rails) with sufficient margin to avoid false triggering during ripple or transients. Selecting a TVS with VWM too close to system voltage risks premature conduction and power loss; the SMAJ60A-E3/5A is optimized for 48–60 V nominal systems.
SMAJ60A-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):
- 60V
- Voltage - Breakdown (Min):
- 66.7V
- Voltage - Clamping (Max) @ Ipp:
- 96.8V
- Current - Peak Pulse (10/1000µs):
- 4.1A
- Power - Peak Pulse:
- 400W
- 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)
SMAJ60A-E3/5A FAQ
1.How can I place an order for SMAJ60A-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ60A-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 SMAJ60A-E3/5A reliable?
The price and inventory of SMAJ60A-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 SMAJ60A-E3/5A is usually 5 days.
3.What payment methods are accepted for SMAJ60A-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ60A-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ60A-E3/5A?
SMAJ60A-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ60A-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 SMAJ60A-E3/5A?
For technical support, including SMAJ60A-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ60A-E3/5A requirements.
6.How does Aetrix verify that SMAJ60A-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMAJ60A-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 SMAJ60A-E3/5A meets industry standards.
7.What is the process for return or replacement of SMAJ60A-E3/5A?
All SMAJ60A-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ60A-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 SMAJ60A-E3/5A part is unused and in its original packaging.
Return procedure for SMAJ60A-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ60A-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 …
