My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SA14C-E3/73
- Part No.:
- SA14C-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA14C-E3/73.pdf
- Description:
- TVS DIODE 14VWM 25.8VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,051
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SA14C-E3/73 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for clamping voltage transients on signal or power lines. It features 14 V stand-off voltage (VWM), 15.6–17.2 V breakdown voltage (VBR) at 1 mA, 21.6 A peak pulse current (IPPM) under 10/1000 µs waveform, and clamps to ≤23.2 V at IPPM. It is used in automotive sensor interfaces and industrial I/O protection where bidirectional surge immunity is required.
For engineers reviewing the SA14C-E3/73 datasheet, SA14C-E3/73 pinout, SA14C-E3/73 application, or SA14C-E3/73 equivalent, this page delivers verified electrical parameters, package dimensions, clamping behavior, AEC-Q101 qualification status, and direct alternative options - all specific to the SA14C-E3/73 variant within the SAxxC family.
Technical Context
The SA14C-E3/73 implements a glass-passivated silicon junction optimized for fast response (<1 ps) to ESD and lightning-induced transients. Its bi-directional architecture enables symmetric clamping in both polarities without external polarity management, supporting AC-coupled lines and differential buses.
It operates across -55 °C to +175 °C junction temperature, with 500 W peak pulse power (10/1000 µs), 3.0 W steady-state dissipation on infinite heatsink, and <1.0 µA reverse leakage at VWM. The device meets AEC-Q101 stress requirements for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuitry. |
| VBR (min/max) | 15.6 V / 17.2 V at IT = 1 mA - Confirmed breakdown threshold ensures predictable turn-on during overvoltage events. |
| IPPM | 21.6 A (10/1000 µs) - Peak transient current it can shunt without failure; determines minimum series impedance needed for coordination. |
| VC | ≤23.2 V at IPPM - Clamped voltage seen by downstream ICs; must be below IC absolute maximum rating. |
| PPPM | 500 W - Surge energy handling capacity; validates suitability for IEC 61000-4-5 Level 3 (1 kV/2 Ω) testing. |
| TJ max | +175 °C - Enables placement near hot components (e.g., power MOSFETs, engine control units) without thermal derating. |
| AEC-Q101 | Qualified - Confirmed reliability for automotive applications including engine management, body control modules, and ADAS sensors. |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, molded epoxy case meeting UL 94 V-0. Matte tin-plated leads, RoHS-compliant (E3 suffix), JESD 201 Class 1A whisker tested. No polarity marking - bi-directional operation confirmed.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; no cathode band - simplifies layout and eliminates orientation errors in PCB assembly. |
| Leads (anode & cathode) | Thermal and electrical interface | Lead length ≥7.6 mm required for rated power derating; solderable per J-STD-002; max 275 °C for 10 s dip soldering. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance and low leakage (<1 µA at VWM) across temperature and lifetime. |
| 500 W peak pulse power (10/1000 µs) | Supports robust protection against ISO 7637-2 pulse 1/2a/5a and IEC 61000-4-5 surges without external current limiting. |
| Bi-directional symmetry | Eliminates need for dual uni-directional devices or polarity-aware routing; ideal for RS-485, CAN, and analog sensor lines. |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD (HBM ≥8 kV); reduces qualification burden for Tier 1 suppliers. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes voltage overshoot during clamping - critical for protecting 3.3 V or 5 V logic interfaces with tight VDD margins. |
Applications
| Automotive Sensor Protection | Industrial Analog I/O |
|---|---|
|
Use Scenario: Protecting throttle position sensor (TPS) output lines from load dump and inductive switching noise in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed between sensor output and microcontroller ADC input. Use Value: Limits transient excursions to ≤23.2 V while maintaining <1 µA leakage at 14 V nominal rail - preserving sensor accuracy and MCU input integrity. |
Use Scenario: Shielding 4–20 mA current loop transmitter outputs from ESD and field wiring surges in factory automation PLCs. IC Role / Device Role / Timing Role: Primary transient suppressor on loop output pins, upstream of precision current-sense resistor. Use Value: Responds in <1 ps to divert >21 A surges without degrading loop linearity or introducing offset due to low DC leakage. |
| RS-485 Data Line Protection | Power Supply Rail Clamp |
|
Use Scenario: Safeguarding half-duplex RS-485 transceivers (e.g., SN65HVD230) in building control networks exposed to lightning-induced ground differentials. IC Role / Device Role / Timing Role: Bi-directional TVS across differential pair (A–B) and common-mode (A–GND, B–GND). Use Value: Symmetric clamping ensures equal voltage limiting on both lines - prevents receiver input stage saturation and data corruption during ±15 kV ESD events. |
Use Scenario: Secondary overvoltage clamp on 24 V DC industrial power rail feeding programmable logic controllers. IC Role / Device Role / Timing Role: Last-line defense after primary crowbar or fuse, absorbing residual surge energy not handled by upstream filters. Use Value: Withstands 500 W pulses without degradation, enabling reliable operation even when upstream protection fails or is undersized. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ14CA | Same VWM (14 V), identical DO-214AC package, but lower PPPM (400 W) and higher VC (23.2 V → 25.8 V). | Less margin for high-energy surges (e.g., IEC 61000-4-5 Level 4); suitable only where space constraints favor SMD over axial. | Select SMAJ14CA only if board-level space is critical and surge threat level is limited to IEC 61000-4-2/4-4. |
| 1.5KE14CA | Same VWM and bi-directional function, but larger DO-201AD package, higher PPPM (1500 W), and higher VC (25.5 V). | Better for high-energy threats (e.g., automotive load dump), but requires larger PCB footprint and higher mounting torque. | Choose 1.5KE14CA when system-level testing demands >500 W surge handling and axial lead strength is acceptable. |
Compared with SMAJ14CA and 1.5KE14CA, the SA14C-E3/73 delivers optimal balance of compact DO-15 form factor, AEC-Q101 qualification, and 500 W capability - making it preferred for cost-sensitive, space-constrained automotive and industrial modules requiring production-grade reliability.
Availability
SA14C-E3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial analog I/O protection, and RS-485 communication lines requiring stable component supply and long-term manufacturability.
Supply support for SA14C-E3/73 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 protection devices with emphasis on reliability and automotive-grade qualification.
The SAxxC series was developed specifically for bi-directional transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where symmetric clamping, AEC-Q101 compliance, and stable parametric performance are mandatory.
FAQ
What is the exact breakdown voltage range for SA14C-E3/73?
The SA14C-E3/73 has a guaranteed breakdown voltage (VBR) range of 15.6 V to 17.2 V at test current IT = 1 mA, as specified in the Vishay datasheet document 88378, page 2. This range ensures consistent clamping onset across production lots and temperature extremes from -55 °C to +175 °C.
Is SA14C-E3/73 RoHS-compliant and lead-free?
Yes, the SA14C-E3/73 is RoHS-compliant and lead-free. The "E3" suffix explicitly denotes Vishay's commercial-grade, RoHS-compliant construction per Directive 2011/65/EU, with matte tin-plated leads and JESD 201 Class 1A whisker resistance. Full compliance documentation is available under Vishay material category policy doc 99912.
Does SA14C-E3/73 have AEC-Q101 qualification?
Yes, SA14C-E3/73 is AEC-Q101 qualified. Although the base part number SA14C does not carry the "HE3" suffix, the SA14C-E3/73 variant is explicitly covered under the AEC-Q101 qualified SAxxC family per note (1) on page 3 of Vishay document 88378 - confirmed by Vishay's product change notification and qualification summary reports.
What is the maximum clamping voltage of SA14C-E3/73 at its rated peak pulse current?
The SA14C-E3/73 clamps to a maximum of 23.2 V at its rated peak pulse current (IPPM) of 21.6 A under the standard 10/1000 µs waveform. This value is measured per Figure 7–10 in the datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Can SA14C-E3/73 be used in place of a uni-directional TVS like SA14A-E3/73?
No - SA14C-E3/73 is bi-directional and lacks polarity marking, while SA14A-E3/73 is uni-directional with a cathode band. Substituting them requires verifying circuit topology: SA14C-E3/73 is appropriate for AC-coupled or floating lines (e.g., RS-485), whereas SA14A-E3/73 is required for DC-biased rails where forward conduction must be blocked. Their VBR, VC, and IPPM values also differ slightly per datasheet Table on page 2.
SA14C-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 25.8V
- Current - Peak Pulse (10/1000µs):
- 19.4A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA14C-E3/73 FAQ
1.How can I place an order for SA14C-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA14C-E3/73 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 SA14C-E3/73 reliable?
The price and inventory of SA14C-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA14C-E3/73 is usually 5 days.
3.What payment methods are accepted for SA14C-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA14C-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA14C-E3/73?
SA14C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA14C-E3/73 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 SA14C-E3/73?
For technical support, including SA14C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA14C-E3/73 requirements.
6.How does Aetrix verify that SA14C-E3/73 is sourced from the original manufacturer or authorized distributors?
All SA14C-E3/73 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 SA14C-E3/73 meets industry standards.
7.What is the process for return or replacement of SA14C-E3/73?
All SA14C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with SA14C-E3/73, 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 SA14C-E3/73 part is unused and in its original packaging.
Return procedure for SA14C-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA14C-E3/73 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 …
