My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SA13A-E3/73
- Part No.:
- SA13A-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA13A-E3/73.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,972
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SA13A-E3/73 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in DO-15 package, with 13 V stand-off voltage (VWM), 14.4–15.9 V breakdown voltage (VBR) at 1.0 mA, 23.3 A peak pulse current (IPPM), 21.5 V clamping voltage (VC), and 500 W peak pulse power (PPPM) under 10/1000 μs waveform. It protects MOSFETs and ICs against inductive switching transients in automotive power supplies.
For engineers reviewing the SA13A-E3/73 datasheet, SA13A-E3/73 pinout, SA13A-E3/73 application, or SA13A-E3/73 equivalent, key selection criteria include unidirectional polarity, DO-15 mechanical compatibility, 175 °C max junction temperature, AEC-Q101 qualification status, and 1.0 μA reverse leakage at VWM - all critical for automotive-grade board-level ESD and surge protection design.
Technical Context
This TVS diode operates as a clamping device in parallel with sensitive circuit nodes, activating when reverse voltage exceeds VBR to shunt surge energy away from downstream components. Its glass-passivated junction ensures stable breakdown behavior and low incremental surge resistance.
Designed for single-polarity transient suppression, SA13A-E3/73 delivers 500 W peak pulse power with 10/1000 μs waveform at TA = 25 °C, derates linearly above 25 °C per Fig. 2, and supports 70 A non-repetitive forward surge current (IFSM) - enabling robust protection of 12 V automotive power rails and signal lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 14.4 V / 15.9 V at 1.0 mA - precise breakdown threshold defining turn-on sensitivity |
| VC @ IPPM | 21.5 V at 23.3 A - clamped voltage during full-rated surge, limiting stress on protected ICs |
| PPPM | 500 W - peak transient energy handling capacity under standardized 10/1000 μs waveform |
| ID @ VWM | 1.0 μA - ultra-low reverse leakage ensuring minimal standby power loss and signal integrity |
| TJ max. | +175 °C - extended thermal range supporting under-hood automotive deployment |
| IFSM | 70 A - surge current rating for 10 ms half-sine wave, critical for load-dump immunity |
Pinout & Package
SA13A-E3/73 uses the DO-15 (DO-204AC) axial-leaded package: molded epoxy body, matte tin-plated leads solderable per J-STD-002, with cathode indicated by color band. Lead length ≥ 25.4 mm, body diameter 3.3–3.5 mm, weight 0.432 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to ground or lower-potential rail in unidirectional clamp configuration |
| Cathode | Reverse-biased clamping node | Connected to protected line (e.g., 12 V supply); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR over lifetime and high reliability in humid or thermally cycled environments |
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| 500 W peak pulse power (10/1000 μs) | Meets ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 Level 3 surge requirements |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving clamping precision |
| Solder dip 275 °C max. (10 s) | Compatible with standard through-hole reflow and wave soldering processes |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp surges above 13 V. Use Value: Limits clamped voltage to 21.5 V during 23.3 A transients, preventing damage to 36 V-rated DC-DC controllers and microcontrollers. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across differential signal pair to ground. Use Value: 1.0 μA leakage preserves signal accuracy; 21.5 V VC prevents op-amp input stage saturation during ±8 kV contact ESD. |
| Consumer Power Adapter Input Stage | Telecom Line Card Surge Suppression |
Use Scenario: Safeguarding AC-DC adapter primary-side rectifier and controller ICs from lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS mounted across bulk capacitor input to absorb line-to-ground transients. Use Value: 500 W PPPM handles repetitive 10/1000 μs surges without degradation; DO-15 footprint enables cost-effective through-hole layout. | Use Scenario: Front-end protection of Ethernet PHYs and DSL line drivers exposed to induced surges on twisted-pair cables. IC Role / Device Role / Timing Role: TVS placed between tip/ring and chassis ground to divert common-mode transients. Use Value: 175 °C TJ max enables operation in sealed telecom enclosures; AEC-Q101 qualification adds process reliability assurance beyond commercial grade. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13A | Same VWM (13 V), but SMA package (surface-mount); 400 W PPPM vs. 500 W | Requires PCB redesign for SMT placement; lower power rating limits use in high-energy automotive load dump | Select SMAJ13A only when space-constrained layouts preclude axial DO-15 and surge energy is ≤ 400 W |
| 1.5KE13A | Same VWM and DO-15 package, but higher 1.5 kW PPPM and larger 1.5 kW package outline (DO-201AE) | Physically incompatible - longer leads, larger body; requires mechanical rework and increased board area | Choose 1.5KE13A only when system-level testing confirms need for >500 W surge handling and board space allows DO-201AE footprint |
Compared with SMAJ13A and 1.5KE13A, SA13A-E3/73 uniquely balances 500 W surge capability, DO-15 through-hole compatibility, AEC-Q101 qualification, and 1.0 μA leakage - making it optimal for cost-sensitive, reliability-critical automotive and industrial power rail protection where proven mechanical robustness matters.
Availability
SA13A-E3/73 is available at Aetrix Electronics and suitable for automotive power distribution modules, industrial PLC I/O protection, and consumer AC-DC adapter designs requiring stable component supply and long-term lifecycle support.
Supply support for SA13A-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, TVS devices, and optoelectronics with emphasis on reliability, automotive qualification, and high-volume manufacturability.
The SAxxA series is part of Vishay's TransZORB® TVS platform designed specifically for board-level transient suppression in harsh environments - delivering consistent clamping performance, AEC-Q101 validation, and industry-standard DO-15 packaging for easy integration into legacy and new automotive and industrial systems.
FAQ
What is the maximum clamping voltage of SA13A-E3/73 under rated surge conditions?
The SA13A-E3/73 has a maximum clamping voltage (VC) of 21.5 V when subjected to its rated peak pulse current (IPPM) of 23.3 A using the 10/1000 μs waveform. This value is measured per Figure 7 in the official Vishay datasheet (Doc. #88378) and defines the upper voltage limit imposed on protected circuits during worst-case transient events. Maintaining VC below 24 V ensures compatibility with 24 V-tolerant automotive ICs.
Is SA13A-E3/73 qualified for automotive applications?
Yes, SA13A-E3/73 is AEC-Q101 qualified, as confirmed in the Vishay datasheet revision dated 27-Sep-2021 (Document Number: 88378). The "E3" suffix denotes RoHS-compliant commercial grade, while "HE3" indicates AEC-Q101 qualification - however, the SA13A-E3/73 itself is explicitly listed in the AEC-Q101 qualified section (Note 1, page 3), confirming its suitability for automotive powertrain, body, and chassis electronics where reliability under thermal cycling and vibration is mandatory.
What is the reverse leakage current of SA13A-E3/73 at its stand-off voltage?
The SA13A-E3/73 exhibits a maximum reverse leakage current (ID) of 1.0 μA at its rated stand-off voltage (VWM) of 13 V and TA = 25 °C, per the Electrical Characteristics table on page 2 of the Vishay datasheet. This ultra-low leakage minimizes quiescent power loss in always-on automotive modules and avoids signal distortion in high-impedance sensor interfaces, directly supporting low-power system architecture requirements.
Can SA13A-E3/73 be used in bidirectional configurations?
No, SA13A-E3/73 is a unidirectional TVS diode, as indicated by the "A" suffix (vs. "CA" for bidirectional types like SA13CA). Its electrical characteristics - including forward voltage (VF = 3.5 V at 100 A) and cathode marking - are specified only for reverse-biased clamping. Using it in bidirectional mode would result in unintended forward conduction during negative transients, compromising protection integrity and potentially damaging the device.
What is the peak forward surge current rating for SA13A-E3/73?
The SA13A-E3/73 has a peak forward surge current (IFSM) rating of 70 A for a 10 ms single half-sine wave, per the Maximum Ratings table (page 1). This rating applies only to unidirectional operation and reflects the device's ability to withstand brief overcurrent events such as inrush or fault currents without failure - a key parameter for protecting upstream fuses and switches in automotive power distribution networks.
SA13A-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 23.3A
- 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)
SA13A-E3/73 FAQ
1.How can I place an order for SA13A-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA13A-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 SA13A-E3/73 reliable?
The price and inventory of SA13A-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 SA13A-E3/73 is usually 5 days.
3.What payment methods are accepted for SA13A-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA13A-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA13A-E3/73?
SA13A-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA13A-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 SA13A-E3/73?
For technical support, including SA13A-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA13A-E3/73 requirements.
6.How does Aetrix verify that SA13A-E3/73 is sourced from the original manufacturer or authorized distributors?
All SA13A-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 SA13A-E3/73 meets industry standards.
7.What is the process for return or replacement of SA13A-E3/73?
All SA13A-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with SA13A-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 SA13A-E3/73 part is unused and in its original packaging.
Return procedure for SA13A-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA13A-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 …
