TS260S_R1_00001 Cross Reference Strategy for Schottky Bridge Rectifiers
TS260S_R1_00001The TS260S_R1_00001 from PANJIT is a 2 A, 60 V single-phase Schottky bridge rectifier housed in the 4-MicroDIP/SMD gull-wing package. This component targets low-forward-voltage-drop rectification in space-constrained power supplies, LED drivers, and polarity protection circuits. Its Schottky technology eliminates stored minority carrier charge, delivering negligible reverse recovery charge (Qrr) compared to PN-junction bridges. This article provides a cross-reference methodology for engineers seeking equivalents, covering electrical, thermal, and package matching criteria required for substitution without redesign.
Core Specifications and Electrical Boundaries for Substitution
The following table consolidates the critical parameters from the TS260S_R1_00001 datasheet. Any candidate alternative must meet or exceed these values in the operating temperature range.
| Parameter | Value | Engineering Meaning |
|---|---|---|
| Diode Type | Single Phase | Four diodes in a full-wave bridge configuration; substitution must provide same topology. |
| Technology | Schottky | Majority-carrier device; no reverse recovery charge. Replacing with fast-recovery PN diode increases switching loss. |
| Voltage – Peak Reverse (Max) | 60 V | Absolute maximum repetitive peak reverse voltage. Derate to 70% (42 V) for reliable operation. Substitution with 40 V part risks avalanche breakdown. |
| Current – Average Rectified (Io) | 2 A | DC output current at Tc = 100°C typical. Pulsed operation can reach 8 A for short durations. Check SOA curve in datasheet. |
| Voltage – Forward (Vf) Max @ If | 700 mV @ 2 A | Forward voltage drop at rated current. Higher Vf alternatives increase conduction loss and junction temperature. |
| Reverse Leakage @ Vr | 50 μA @ 60 V | Leakage at maximum reverse voltage at 25°C. Doubles every 10°C rise above 25°C. Critical for low-standby-power designs. |
| Operating Temperature | -55°C ~ 150°C (Tj) | Junction temperature range. Substitutions must guarantee same or wider range. |
| Mounting Type | Surface Mount | Gull-wing leads for SMD assembly. Alternative packages must fit same footprint. |
| Package / Case | 4-SMD, Gull Wing | 4-MicroDIP/SMD. Pin 1 anode bridge, pin 2 AC, pin 3 cathode bridge, pin 4 AC. Footprint must match. |
The two most design-critical specs are the forward voltage drop and the reverse leakage current. At 2 A forward current, the 700 mV Vf ceiling means a Schottky alternative must have a comparable barrier height. Replacing with a 500 mV Vf part reduces conduction loss but increases leakage at high temperature, potentially exceeding standby current limits. The 50 μA leakage at 60 V also sets a hard ceiling for off-state power dissipation; any alternative must not exceed this value at the maximum operating junction temperature.
Parameters That Must Match Exactly vs. Those That Can Tolerate Variation
Mandatory matches: Package footprint (4-MicroDIP/SMD with gull-wing leads), pinout configuration (single-phase bridge), and technology (Schottky). Even a D-PAK (TO-252) alternative with identical electrical specs fails mechanical compatibility without PCB layout change. Peak reverse voltage and average rectified current are also non-negotiable for same-application substitution.
Tolerable variations include higher Vf (up to 850 mV) if the system can handle increased thermal load, or lower leakage (under 25 μA) which is actually beneficial. Higher surge current capability is also acceptable. The operating temperature range can be wider on the high side (e.g., 175°C Tj) but must not be narrower. Substitutions from the Bridge Rectifiers category that use fast-recovery technology (trr < 100 ns) may work in low-frequency applications below 1 kHz but will cause higher switching losses above 10 kHz.
Cross-Reference Brands and Methodology
Leading manufacturers in the Schottky bridge rectifier space include Infineon, STMicroelectronics, onsemi, Vishay, Nexperia, and Diodes Incorporated. To cross-reference the TS260S_R1_00001, apply the following filter cascade:
- Package and pinout: Identify all 4-pin SMD bridges with same gull-wing footprint. Common package codes: MicroDIP, SMD-4, MB-S.
- Voltage and current rating: Filter for Vrrm ≥ 60 V and Io ≥ 2 A at Tc = 100°C.
- Technology filter: Exclude all non-Schottky bridges (PN, fast-recovery, ultra-fast).
- Forward voltage ceiling: Vf ≤ 700 mV at 2 A at 25°C.
- Leakage ceiling: Ir ≤ 50 μA at 60 V at 25°C.
Typical candidates from competitors include the onsemi SR2040 (40 V, 2 A, Schottky) which fails at 60 V, the Vishay VESD60A2 (80 V, 2 A, Schottky) requiring footprint verification, and the Diodes Inc SBR2A60S1 (60 V, 2 A, SBR technology which has similar Vf profile). For exact pin-compatible alternatives, consult parametric search tools with the package code 4-MicroDIP/SMD.
Validation Steps: Electrical, Thermal, and Long-Term Aging
Before approving a substitute, validate across three tiers:
Electrical consistency: Measure Vf and Ir at room temperature and at 85°C. The Vf at high temperature (125°C) typically drops by 10-15% for Schottky diodes, while Ir may increase 5-10x. Confirm the alternative does not exceed the original part's leakage at Tj = 125°C.
Temperature cycling: The 4-MicroDIP package has a CTE mismatch between the silicon die and the molding compound. Run 500 cycles from -40°C to 125°C with 30-second dwells. Visual inspection after cycling should show no delamination at the lead interface. Solder joint integrity must be confirmed with shear testing per JEDEC JESD22-B117.
Long-term aging: High-temperature reverse bias (HTRB) at 80% of Vrrm (48 V) for 1000 hours at 150°C is the standard. The alternative must show less than 20% drift in leakage current. Accelerated thermal cycling (1000 cycles) further validates die attach and wire bond integrity.
Supply Chain Risk and Toolchain Compatibility
The TS260S_R1_00001 is a RoHS-compliant, surface-mount part from PANJIT, a manufacturer with 7838+ SKUs available. Substitution from a different brand may introduce lead-time variability: check factory lead times for each alternative. Toolchain compatibility includes pick-and-place machine settings: the 4-MicroDIP package has a 1.75 mm body width and 3.0 mm height. Alternatives with different body dimensions require nozzle change or pick position re-optimization. Reflow profile compatibility must also be verified; Schottky bridges are sensitive to peak reflow temperature above 260°C, which can cause barrier metal diffusion.
When Not to Substitute: Honest Opposing View
Do not substitute the TS260S_R1_00001 when the application operates near maximum ratings continuously. If the junction temperature reaches 125°C or above, Schottky leakage current can increase tenfold relative to the 25°C baseline. A substitute with identical Ir at 25°C may have worse high-temperature leakage, causing thermal runaway. Similarly, if the circuit already uses zero-crossing detection or synchronous rectification at frequencies above 100 kHz, only the original Schottky bridge with specified low Qg should be used. Substituting with a standard Schottky from a different source may introduce gate oscillation or shoot-through.
The risk is highest in automotive OBC applications (on-board chargers) where the TS260S_R1_00001 candidate may be subjected to engine bay temperatures and load-dump transients. A 60 V rating leaves only 20% margin above a typical 48 V bus; any substitute must have identical avalanche robustness (EA capability) which is often not specified in generic datasheets.
Substitution Decision Matrix
| Criterion | Match Required | Action if Not Matched |
|---|---|---|
| Package (4-MicroDIP/SMD) | Exact footprint and pinout | Redesign PCB or reject |
| Technology (Schottky) | Must be Schottky | Redesign snubber or reject |
| Vrrm ≥ 60 V | Minimum 60 V | Increase voltage rating or reject |
| Io ≥ 2 A | ≥ 2 A at Tc=100°C | Derate current or reject |
| Vf ≤ 700 mV @ 2 A | Within 10% | Accept with thermal recalc |
| Ir ≤ 50 μA @ 60 V | Within 20% | Accept with leakage margin check |
| Tj range -55 to 150°C | Must cover | Reject if narrower |
| RoHS status | Compliant | Reject |
Engineering takeaway: When sourcing an alternative to the TS260S_R1_00001, prioritize package mechanical compatibility and Schottky technology identity. Electrical parameters can be relaxed upward (higher voltage, higher current) but never downward. Always validate high-temperature leakage and thermal cycling performance before committing to volume production.
Frequently Asked Questions About TS260S_R1_00001
What is the TS260S_R1_00001 pinout configuration?
The TS260S_R1_00001 uses a 4-pin gull-wing package. Pin 1 is the positive output (anode bridge common), pins 2 and 4 are the AC inputs, and pin 3 is the negative output (cathode bridge common). Always verify against the manufacturer footprint drawing before layout.
Does the TS260S_R1_00001 require a heatsink?
At 2 A continuous with Vf=700 mV, power dissipation is 1.4 W. In a 25°C ambient with natural convection on a 1 oz copper pad, junction temperature can reach 85-100°C. For operation above 1.5 A or ambient above 60°C, add a thermal via array under the package to a copper pour area. No dedicated heatsink is required for most low-power applications.
Is the TS260S_R1_00001 equivalent to any Vishay or onsemi part?
No exact pin-compatible equivalent exists from Vishay or onsemi in the same 4-MicroDIP package with 60 V rating. The closest is onsemi SR2040 (40 V) and Vishay VESD60A2 (80 V) which require footprint verification. For safe substitution, use parametric search filtering by package code MB-S or SMD-4, Vrrm ≥ 60 V, and Schottky technology.
Where can I find the TS260S_R1_00001 datasheet and application notes?
The manufacturer PANJIT provides datasheets on its official website. Third-party distributor platforms also host current versions. Look for application notes on Schottky bridge rectifier thermal management and reverse recovery behavior. Cross-reference the document revision date to ensure you are using the latest spec.
