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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

STMicroelectronics STPS160AY

Name: STPS160AY
Brand: STMicroelectronics
SKU: STPS160AY
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPS160AY

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: DO-214AC, SMA

Datasheet:: STPS160AY.pdf

Description:: DIODE SCHOTTKY 60V 1A SMA

Quantity:: RFQ Add To RFQ list

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Inventory:10,393

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Product details

Overview

STPS160AY from STMicroelectronics is an automotive-grade Schottky rectifier in SMA (DO-214AC) package, rated for 1 A average forward current and 60 V repetitive peak reverse voltage, with max forward voltage drop of 0.57 V at 125 °C and 1 A. It delivers low conduction losses, negligible switching losses, and avalanche capability for robustness in automotive power systems including polarity protection and freewheeling circuits.

For engineers reviewing the STPS160AY datasheet, STPS160AY pinout, STPS160AY application, or STPS160AY equivalent, key selection criteria include its AEC-Q101 qualification, thermal resistance (R_th(j-l) = 30 °C/W), ECOPACK®2 compliance, and surface-mount SMA footprint optimized for high-frequency DC/DC converters in under-hood environments.

Technical Context

This Schottky rectifier uses a single-chip metal–semiconductor junction to achieve fast recovery (no minority-carrier storage) and zero reverse recovery charge, enabling operation up to several MHz in SMPS and DC/DC converters. Its low VF and high T_j(max) = 150 °C support compact thermal design in space-constrained automotive modules.

Avalanche energy rating (P_ARM = 2400 W at t_p = 1 µs) and dV/dt capability of 10,000 V/µs ensure resilience against inductive load transients and load-dump events common in 12 V automotive electrical systems.

Key Specifications

Parameter	Value and Actual Design Meaning
IF(AV)	1 A average forward current - supports continuous power delivery in low-voltage auxiliary rails
VRRM	60 V repetitive peak reverse voltage - withstands automotive load-dump transients per ISO 7637-2
VF (max)	0.57 V at 1 A, 125 °C - minimizes conduction loss and self-heating in high-duty-cycle operation
Tj (max)	150 °C operating junction temperature - enables placement near heat sources in engine control units
Rth(j-l)	30 °C/W junction-to-lead thermal resistance - allows direct PCB copper pour heatsinking without external heatsink
dV/dt	10,000 V/µs critical rate of rise - prevents false turn-on during fast-switching noise in motor drivers
IFSM	75 A non-repetitive surge current (10 ms sine) - handles cold-crank inrush and relay coil de-energization spikes

Pinout & Package

STPS160AY is housed in SMA (JEDEC DO-214AC) surface-mount package with cathode-indicating band. The two-terminal device has no internal gate or control pins; terminals are anode and cathode only.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to input source or inductive switch node; must be routed with low-inductance trace for EMI control
Cathode	Forward current exit / reverse blocking terminal	Connected to output rail or ground return; marked by molded band on package body

Key Features

Feature	Design Value
Automotive qualification	AEC-Q101 qualified - validated for temperature cycling, humidity, and mechanical shock in automotive environments
Low forward voltage	VF ≤ 0.57 V @ 1 A, 125 °C - reduces power loss by >30% vs. standard silicon diodes at same current
Avalanche capability	P_ARM = 2400 W @ 1 µs - absorbs inductive energy without failure during MOSFET turn-off in buck regulators
Surface-mount packaging	SMA (DO-214AC) footprint - compatible with automated reflow assembly and fits < 3 mm² board area
Environmental compliance	ECOPACK®2 compliant - lead-free, halogen-free, RoHS-compliant construction for global automotive supply chains

Applications

Automotive Polarity Protection

DC/DC Converter Freewheeling

Use Scenario: Reverse battery connection protection in infotainment head units and body control modules.

IC Role / Device Role / Timing Role: Unidirectional current clamp placed between battery input and system regulator input.

Use Value: Prevents damage from -14 V reverse polarity while maintaining < 0.6 V forward drop at 1 A, minimizing voltage headroom loss.

Use Scenario: Freewheeling path in 48 V–12 V synchronous buck converters for ADAS camera power supplies.

IC Role / Device Role / Timing Role: Fast-recovery flyback path during high-side MOSFET off-time.

Use Value: Zero Q_rr eliminates reverse recovery loss, enabling >500 kHz switching with stable efficiency across -40 to 125 °C.

Engine Control Unit Clamp Diode

Start-Stop System Rectification

Use Scenario: Snubber clamp for fuel injector driver coils exposed to 100 V+ inductive kickback.

IC Role / Device Role / Timing Role: Avalanche-rated transient suppressor parallel to coil winding.

Use Value: Withstands 2400 W single-pulse avalanche energy, eliminating need for external TVS in cost-sensitive ECU designs.

Use Scenario: Input rectification in start-stop battery management modules handling frequent cranking cycles.

IC Role / Device Role / Timing Role: Primary AC/DC or DC/DC input rectifier subjected to repeated 75 A surge currents.

Use Value: IFSM = 75 A (10 ms sine) ensures reliability over >100,000 cold-crank events without degradation.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SB160-E3/54	Same IF(AV) = 1 A, VRRM = 60 V, but SMB package (R_th(j-l) = 23 °C/W); VF = 0.72 V max @ 1 A, 25 °C	Higher thermal performance but larger footprint; less suitable for ultra-thin modules	Select when board space allows larger SMB and lower junction temperature is prioritized over height
SS16HE3_A/H	IF(AV) = 1 A, VRRM = 60 V, SMA package, but not AEC-Q101 qualified; VF = 0.55 V typ @ 1 A, 25 °C	Lacks automotive qualification and avalanche rating; intended for consumer/commercial use only	Acceptable only for non-safety-critical, non-automotive designs where qualification overhead is unnecessary

Compared with SB160-E3/54 and SS16HE3_A/H, STPS160AY uniquely combines AEC-Q101 qualification, 150 °C operation, and 2400 W avalanche rating in the compact SMA package-making it the only choice for thermally constrained, safety-compliant automotive power stages.

Availability

STPS160AY is available at Aetrix Electronics and suitable for automotive polarity protection, DC/DC converter freewheeling, and engine control unit clamp applications requiring stable component supply and full AEC-Q101 traceability.

Supply support for STPS160AY 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and sensor solutions for automotive, industrial, and consumer markets.

STPS160AY belongs to ST's automotive Schottky rectifier product line, engineered specifically for high-reliability, high-temperature power conversion in engine compartments and ADAS subsystems.

FAQ

Is STPS160AY suitable for synchronous rectification?

No. STPS160AY is a passive Schottky rectifier with fixed anode–cathode polarity and no gate control. It cannot replace a MOSFET in synchronous rectification topologies, which require active gate drive and bidirectional conduction capability. Its role is limited to unidirectional freewheeling or clamping.

What is the maximum recommended PCB copper area for thermal relief with STPS160AY?

Per Figure 12 in the datasheet, R_th(j-a) improves from 100 °C/W (no copper) to ~45 °C/W with 5 cm² of 35 µm Cu on FR4. For reliable 1 A continuous operation at 125 °C ambient, ≥2.5 cm² per lead is recommended-achievable with standard SMA pad extensions and inner-layer thermal vias.

Does STPS160AY have a specified reverse recovery time (t_rr)?

No-Schottky diodes like STPS160AY have no minority-carrier storage, so reverse recovery time is effectively zero. The datasheet specifies dV/dt capability (10,000 V/µs) instead, confirming immunity to snap-off and oscillation during fast voltage transitions, unlike PN-junction diodes.

Can STPS160AY replace STPS160UY in the same layout?

No. Although both share identical electrical specs, STPS160UY uses SMB (DO-214AA) package-larger than SMA-with different pad dimensions (E = 5.10–5.60 mm vs. 4.80–5.35 mm) and lead spacing. Direct replacement requires PCB redesign; thermal performance differs (R_th(j-l) = 23 °C/W for SMB vs. 30 °C/W for SMA).

STPS160AY Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: DO-214AC, SMA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 60 V

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 670 mV @ 1 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 4 µA @ 60 V

Capacitance @ Vr, F:: -

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AC (SMA)

Operating Temperature - Junction:: -40°C ~ 150°C

STPS160AY FAQ

1.How can I place an order for STPS160AY through Aetrix?

Please submit a Request for Quotation (RFQ) for STPS160AY 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 STPS160AY reliable?

The price and inventory of STPS160AY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS160AY is usually 5 days.

3.What payment methods are accepted for STPS160AY?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS160AY transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPS160AY?

STPS160AY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPS160AY 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 STPS160AY?

For technical support, including STPS160AY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS160AY requirements.

6.How does Aetrix verify that STPS160AY is sourced from the original manufacturer or authorized distributors?

All STPS160AY 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 STPS160AY meets industry standards.

7.What is the process for return or replacement of STPS160AY?

All STPS160AY units undergo pre-shipment inspection (PSI). If there is an issue with STPS160AY, 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 STPS160AY part is unused and in its original packaging.

Return procedure for STPS160AY:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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