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SS16HR3G Schottky Diode Equivalent & Substitute Parts
Part Overview
The SS16HR3G is a 60V, 1A Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation in a DO-214AC (SMA) surface mount package. This component is classified as discontinued at DiGi Electronics, necessitating identification of equivalent and substitute parts for ongoing design requirements and production continuity. The part carries automotive-grade qualification (AEC-Q101) and ROHS3 compliance, making it suitable for automotive and industrial applications requiring fast recovery rectification.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - DC Reverse (Vr) Maximum | 60 | V |
| Current - Average Rectified (Io) | 1 | A |
| Voltage - Forward (Vf) Maximum @ If | 750 mV @ 1 A | mV |
| Speed - Fast Recovery | ≤ 500ns, > 200mA (Io) | ns |
| Current - Reverse Leakage @ Vr | 200 | µA @ 60 V |
| Technology | Schottky | — |
| Package / Case | DO-214AC, SMA | — |
| Operating Temperature - Junction | -55°C to 150°C | °C |
| Grade | Automotive | — |
| Qualification | AEC-Q101 | — |
| RoHS Status | ROHS3 Compliant | — |
Substitute Part Grouping Explanation
Substitution of the SS16HR3G is determined by strict equivalence across the following critical parameters:
Primary Equivalence Criteria:
- Voltage - DC Reverse (Vr) Maximum: 60 V
- Current - Average Rectified (Io): 1 A
- Technology: Schottky
- Package / Case: DO-214AC (SMA)
- Mounting Type: Surface Mount
- Fast Recovery Speed: ≤ 500ns, > 200mA (Io)
Parametric Equivalents are parts that match all primary criteria with identical or superior electrical performance. These parts are direct functional replacements with no design modifications required.
Similar Parts are components that meet the primary voltage and current requirements but may differ in secondary parameters such as forward voltage, reverse leakage current, capacitance, or temperature range. These parts are suitable for applications where the specific secondary parameter variation does not impact circuit performance.
Parts with different current ratings (2A) or different package types (SMB) are classified as similar rather than equivalent due to mechanical and thermal characteristic differences.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Vr (Max) V | Io (A) | Vf (Max) @ If (mV) | Reverse Leakage @ Vr (µA) | Package | Temp Range (°C) | AEC-Q101 | Product Status |
|---|---|---|---|---|---|---|---|---|---|
| SS16HR3G | Taiwan Semiconductor Corporation | 60 | 1 | 750 @ 1 A | 200 @ 60 V | DO-214AC (SMA) | -55 to 150 | Yes | Discontinued |
| SS16 | EVVO Semi | 60 | 1 | 700 @ 1 A | 300 @ 60 V | DO-214AC (SMA) | -55 to 125 | No | Active |
| SS16 R3G | Taiwan Semiconductor Corporation | 60 | 1 | 750 @ 1 A | 200 @ 60 V | DO-214AC (SMA) | -55 to 150 | No | Discontinued |
| SS16H | Taiwan Semiconductor Corporation | 60 | 1 | 750 @ 1 A | 200 @ 60 V | DO-214AC (SMA) | -55 to 150 | Yes | Active |
| B160-13-F | Diodes Incorporated | 60 | 1 | 700 @ 1 A | 500 @ 60 V | DO-214AC (SMA) | -65 to 150 | No | Active |
| B160Q-13-F | Diodes Incorporated | 60 | 1 | 700 @ 1 A | 500 @ 40 V | DO-214AC (SMA) | -65 to 150 | Yes | Active |
| CDBA160-HF | Comchip Technology | 60 | 1 | 700 @ 1 A | 500 @ 60 V | DO-214AC (SMA) | -50 to 150 | No | Active |
| CDBA160LR-HF | Comchip Technology | 60 | 1 | 550 @ 1 A | 500 @ 60 V | DO-214AC (SMA) | -50 to 150 | No | Active |
Engineering Selection Recommendations
Recommended Primary Substitute: SS16H
The SS16H manufactured by Taiwan Semiconductor Corporation is the optimal substitute for the discontinued SS16HR3G. This part maintains identical electrical specifications including 60V reverse voltage, 1A average rectified current, 750mV forward voltage at 1A, and 200µA reverse leakage at 60V. The SS16H carries automotive-grade qualification (AEC-Q101) and operates across the same temperature range (-55°C to 150°C). The part is currently active in production with Tape & Reel packaging, ensuring supply continuity. No circuit modifications are required for this substitution.
Secondary Equivalent: SS16 (EVVO Semi)
The SS16 from EVVO Semi meets the primary voltage and current specifications with a lower forward voltage (700mV vs. 750mV at 1A), which provides improved efficiency. However, this part operates to a reduced maximum junction temperature of 125°C compared to 150°C for the SS16HR3G, and lacks AEC-Q101 automotive qualification. This part is suitable for non-automotive applications or where the lower temperature rating does not constrain the design.
Automotive-Qualified Alternative: B160Q-13-F
The B160Q-13-F from Diodes Incorporated provides automotive-grade qualification (AEC-Q101) with identical voltage and current ratings. This part features a lower forward voltage (700mV) and extended temperature range (-65°C to 150°C). The reverse leakage specification differs (500µA @ 40V vs. 200µA @ 60V for the original part), which may impact low-power standby current performance in sensitive applications.
General-Purpose Alternatives: B160-13-F, CDBA160-HF
The B160-13-F and CDBA160-HF are functionally compatible parts meeting the 60V, 1A specifications without automotive qualification. These parts feature lower forward voltage (700mV) and higher reverse leakage (500µA @ 60V). These options are suitable for industrial and consumer applications where AEC-Q101 qualification is not required.
Enhanced Forward Voltage Performance: CDBA160LR-HF
The CDBA160LR-HF from Comchip Technology offers the lowest forward voltage specification (550mV @ 1A) among available substitutes, providing superior efficiency in power conversion applications. This part maintains the 60V, 1A ratings and DO-214AC package compatibility. The reduced temperature range (-50°C to 150°C) and lack of automotive qualification should be evaluated against application requirements.
Frequently Asked Questions (FAQ)
Q: Can the SS16HR3G be directly replaced with the SS16H?
A: Yes. The SS16H is a direct functional replacement. Both parts share identical electrical specifications (60V, 1A, 750mV forward voltage, 200µA reverse leakage), the same DO-214AC (SMA) package, automotive-grade qualification (AEC-Q101), and identical operating temperature range (-55°C to 150°C). No circuit modifications are required.
Q: What is the difference between parametric equivalents and similar parts?
A: Parametric equivalents match all critical electrical specifications and package requirements of the original part. Similar parts meet the primary voltage and current ratings but may differ in secondary parameters such as forward voltage, reverse leakage, or temperature range. Parametric equivalents are direct replacements; similar parts require evaluation of whether secondary parameter differences impact circuit performance.
Q: Why do some substitutes have lower forward voltage specifications?
A: Forward voltage variation is a normal characteristic of Schottky diode manufacturing across different vendors and process technologies. Lower forward voltage (such as 700mV vs. 750mV) indicates improved efficiency and reduced power dissipation. This is generally beneficial unless the circuit design specifically depends on the original forward voltage characteristic.
Q: Is the B160Q-13-F suitable for automotive applications?
A: Yes. The B160Q-13-F carries AEC-Q101 automotive qualification, making it suitable for automotive applications. It meets the 60V, 1A specifications and provides an extended temperature range (-65°C to 150°C). The primary difference is higher reverse leakage current (500µA @ 40V), which should be evaluated for applications sensitive to standby current consumption.
Q: Can I use a 2A rated diode (such as B260AQ-13-F or CDBA260-HF) as a substitute for the 1A SS16HR3G?
A: A 2A rated diode is not a direct substitute due to different thermal and mechanical characteristics in the DO-214AC package. While electrically compatible at 1A operation, the different current rating indicates different die size and thermal properties. Use of a higher-rated part may introduce unintended thermal behavior changes. Select parts with matching 1A current ratings for direct substitution.
Q: What is the significance of the DO-214AC (SMA) package designation?
A: DO-214AC and SMA are equivalent designations for the same surface mount package. This is a standard small outline package measuring approximately 4.5mm × 2.6mm × 1.5mm. All listed equivalent and similar parts use this identical package, ensuring mechanical and thermal compatibility on printed circuit boards without layout modifications.
Q: Does the CDBA160LR-HF with 550mV forward voltage provide better performance than the original SS16HR3G?
A: The CDBA160LR-HF provides lower forward voltage (550mV vs. 750mV at 1A), which reduces power dissipation and improves efficiency in rectification circuits. However, this part has a reduced minimum operating temperature (-50°C vs. -55°C) and lacks automotive qualification. The substitution is suitable for applications where the temperature range and qualification requirements do not constrain the design and where efficiency improvement is beneficial.
Q: Are all listed substitutes ROHS3 compliant?
A: Yes. All parametric equivalent and similar parts listed carry ROHS3 compliance status, matching the environmental compliance requirement of the original SS16HR3G.
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