FR107-G - 1A 1000V Fast Recovery Rectifier DO-41 | Comchip
Référence : FR107-G ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $0.18 | $0,18 |
| 10 | $0.15 | $1,50 |
| 100 | $0.11 | $11,00 |
| 500 | $0.08 | $40,00 |
| 1 000 | $0.06 | $60,00 |
FR107-G Présentation
A fast-recovery rectifier (often abbreviated FRR or FRD) is a discrete semiconductor diode whose minority-carrier lifetime has been intentionally shortened so that it ceases conduction quickly when reverse-biased. Within the broader taxonomy, FR107 sits as: fast-recovery rectifier -> recovery rectifier -> rectifier diode -> discrete semiconductor. Fast-recovery parts differ from standard-recovery parts (such as the 1N4007) by their deliberately reduced trr, and they differ from ultrafast-recovery parts (UF4007) only by trr value: 500 ns versus 75 ns. Fast-recovery rectifiers are widely used in 50/60 Hz line-frequency rectification, low-frequency switch-mode freewheeling, and DC output stages of offline power supplies where switching losses in the rectifier are tolerable but where reverse recovery at line frequency must not introduce audible noise or harmonic distortion.
Key features of the FR107-G include a low forward voltage drop of 1.3 V at 1 A, glass-passivated junction construction that improves long-term stability and reverse-leakage performance, molded epoxy body rated UL 94V-0 for flame retardance, and axial leads compatible with through-hole wave soldering or insertion mounting. The part is lead-free and RoHS-compliant, and the -G suffix (Comchip convention) signals the green/lead-free finish as distinct from the legacy SnPb finish on the same die. Operating junction temperature range extends from -55 °C to +150 °C.
Typical applications for the FR107-G include 50/60 Hz bridge rectifiers in linear and switched-mode power supplies, freewheeling diodes across inductive loads such as relay coils and solenoids, snubber diodes in flyback converters, and reverse-polarity protection circuits where 1 A continuous and 30 A peak surge ratings are sufficient. Designers also use FR107-family parts in low-cost DC adapters, battery chargers, and hobby/educational power-electronics kits. The DO-41 axial package, paired with the part's high surge capability, makes it a robust workhorse for general-purpose through-hole rectification.
When designing with the FR107-G, verify that peak inverse voltage and case temperature stay within the datasheet envelope. The 30 A IFSM rating assumes a single 8.3 ms half-sine pulse; for repetitive surge operation, derate significantly. Use a clip-on heatsink or thermal compound only if your application sustains high average forward current, since the DO-41 body itself dissipates 3 W only with adequate lead cooling. Pair trr with your switching topology: FR107's 500 ns is acceptable for line-frequency and low-frequency SMPS freewheeling, but ultrafast 75 ns parts (UF4007) are required for >100 kHz hard-switched converters.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes sourced from manufacturer datasheets, Mouser/DigiKey listings, and parametric cross-references not consolidated in any single vendor catalog.
Alternatives de remplacement direct pour FR107-G — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
FR107G
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FR107-G Valeurs maximales et caractéristiques électriques
| Manufacturer | Comchip Technology |
| Part Series | FR107 |
| Diode Type | Fast Recovery Rectifier |
| Boîtier | DO-41 (DO-204AL) axial through-hole |
| Maximum Repetitive Peak Reverse Voltage (VRRM) | 1000 V |
| Maximum RMS Reverse Voltage (VR(RMS)) | 700 V |
| Average Rectified Forward Current (IO) | 1 A |
| Non-Repetitive Peak Forward Surge Current (IFSM) | 30 A (8.3 ms half-sine) |
| Forward Voltage Drop (VF) at IF=1A | 1.3 V |
| Reverse Recovery Time (trr) | 500 ns (typical) |
| Reverse Current (IR) at VRRM | 5 µA at 25 °C |
| Plage de température de jonction en fonctionnement | -55 °C to +150 °C |
| Storage Temperature Range | -55 °C to +150 °C |
| Junction Construction | Glass passivated |
| Body Material | Molded epoxy, UL 94V-0 rated |
| Lead Configuration | Axial leads, solderable |
| Type de montage | Through Hole |
| RoHS / Lead-Free Finish | Yes (-G suffix = green/lead-free) |
| Niveau MSL | Not applicable (through-hole axial) |
Configuration des broches de FR107-G
| Broche 1 | Anode (A) — Positive terminal - connects to higher DC potential |
| Broche 2 | Cathode (K) — Negative terminal - identified by polarity band on body |
Applications typiques
FR107-G convient pour 6 applications: 50/60 Hz Bridge Rectifier in Linear Power Supplies, Freewheeling Diode for Relay Coils and Solenoids, Snubber Diode in Low-Frequency Flyback Converters, Reverse-Polarity Protection at DC Inputs, Output Rectifier in Battery Chargers, Hobby and Educational Power Electronics Kits.
50/60 Hz Bridge Rectifier in Linear Power Supplies
The FR107-G is well-suited as one of four diodes in a full-wave bridge rectifier for linear and unregulated DC power supplies fed from a 120/220 VAC mains transformer. With VRRM = 1000 V, the part easily handles 311 V peak line voltage from 220 VAC mains with substantial safety margin, allowing designers to omit MOV/transient suppression on the bridge. Its 1 A continuous IO rating covers small wall-adapter-class supplies (e.g., 12 V at <1 A) and its 1.3 V forward drop per diode (2.6 V total in a bridge) is acceptable where efficiency is not paramount. Because trr = 500 ns is irrelevant at 50/60 Hz, FR107-G is preferred here over more expensive ultrafast parts. Place the diode as close to the transformer secondary as practical and add a small RC snubber if transformer leakage inductance causes ringing above ~1 MHz.
Recommandé
Freewheeling Diode for Relay Coils and Solenoids
The FR107-G works well as a flyback/freewheeling diode across relay coils, solenoid valves, and small DC motor windings. When the driving transistor switches off, the inductor's collapsing magnetic field induces a reverse voltage spike that can destroy the switching transistor; the FR107-G clamps this spike to one forward drop and dissipates the stored magnetic energy as heat. With trr = 500 ns, FR107-G handles the slow dI/dt of a relay coil turn-off (milliseconds) comfortably - faster trr is not needed. Its 1 A continuous rating matches small signal relay coils, and the 30 A IFSM rating tolerates the brief flyback pulse at switch-off. Place the diode directly across the coil with minimal lead length to reduce radiated EMI.
Recommandé
Snubber Diode in Low-Frequency Flyback Converters
In low-frequency flyback converters operating below ~20 kHz, the FR107-G serves as the output rectifier (D_out) that conducts during the demagnetization phase when energy stored in the transformer primary is delivered to the secondary. Its 1000 V reverse voltage rating covers wide-input offline designs (85-265 VAC) with conservative derating, and its 1 A rating fits sub-50 W adapter-class supplies. The 500 ns reverse recovery is fast enough for 20 kHz operation without significant switching loss, though for higher-frequency flybacks an ultrafast UF4007 or Schottky diode is recommended for efficiency. Pair the FR107-G with an RC snubber (typically 100 Ω + 470 pF) across the diode to damp ringing caused by transformer leakage inductance.
Recommandé
Reverse-Polarity Protection at DC Inputs
The FR107-G can be wired in series with a DC input to block reverse-polarity connection damage to downstream circuitry, accepting up to 1 A continuous forward current with only 1.3 V forward drop. While a P-channel MOSFET is more efficient (drops only RDS(on) * I), a single FR107-G is the lowest-cost solution for budget products where the 1.3 V drop is acceptable. Its 1000 V reverse standoff is far above any normal DC rail, providing robust protection against accidental reverse-battery or miswired supply conditions in industrial equipment, two-way radios, and automotive accessory jacks. For higher efficiency, consider an ideal-diode controller (e.g., LM74670) with a discrete MOSFET in the same footprint class.
Recommandé
Output Rectifier in Battery Chargers
Small linear and switch-mode battery chargers rated under 1 A output use the FR107-G as the main output rectifier following the transformer/secondary side. Its 1000 V VRRM provides wide-input safety margin against ringing transients on the secondary, and its 1 A current matches single-cell Li-ion and small SLA battery charge currents. The 1.3 V forward drop reduces the effective charging voltage applied to the battery, which should be compensated by adjusting the transformer secondary turns or the regulator feedback network. For higher-current or higher-efficiency chargers, a Schottky diode (e.g., 1N5819 for low voltage, MBR1040 for higher voltage) is a more efficient alternative where reverse voltage permits.
Recommandé
Hobby and Educational Power Electronics Kits
The FR107-G is a staple component in low-cost hobby and educational power-electronics kits because it delivers 1000 V / 1 A / 500 ns specs in a robust through-hole DO-41 package that is easy to hand-solder and breadboard-friendly. Its widespread availability from multiple second-source manufacturers (Comchip, TSC, SMC, Diodes Inc, MCC) means educators and hobbyists can always source replacement parts at low cost. The FR107-G is ideal for teaching full-wave rectification, Zener-regulated supplies, simple inverter bridges, and basic DC motor drive circuits in undergraduate electrical engineering labs. Its 30 A surge rating also makes it forgiving of student wiring mistakes such as momentary shorts on the breadboard.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour FR107-G — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | FR107G | FR107G | FR107G | FR107 | FR107G | FR107GP-TP |
|---|---|---|---|---|---|---|---|
| Package | DO-41 (DO-204AL) | DO-41 - same | DO-41 - same | DO-41 - same | DO-41 - same | DO-41 - same | DO-41 - same |
| Brand | Comchip Technology | Comchip Technology | Taiwan Semiconductor | SMC Diode Solutions | Diodes Incorporated | LGE | Micro Commercial Components |
| VRRM (V) | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 |
| IO (A) | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| trr (ns) | 500 | 500 | 500 | 500 | 500 | 500 | 500 |
| VF at 1A (V) | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 |
| IFSM (A) | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Operating Temperature (°C) | -55 to +150 | -55 to +150 | -55 to +150 | -55 to +150 | -55 to +150 | -55 to +150 | -55 to +150 |
| RoHS / Lead-Free | Yes (-G suffix) | Yes | Yes | Yes | Yes (per marking) | Yes | Yes |
Principaux différenciateurs
- Green/lead-free RoHS-compliant finish as standard (vs Legacy FR107 (non-suffix))
- 500 ns reverse recovery for fast-recovery service (vs 1N4007)
- Multi-source availability reduces supply-chain risk (vs Vendor-specific single-source 1A/1000V fast-recovery parts)
Notes de conception
Estimated: at IF = 1 A continuous and VF = 1.3 V, the FR107-G dissipates approximately 1.3 W. The DO-41 package has a typical lead-mounted thermal resistance of ~50 °C/W when soldered to a PCB with 1 oz copper pads on each lead, resulting in a junction temperature rise of ~65 °C above ambient. For sustained 1 A operation, ensure either a clip-on heatsink or that the lead leads are bent and clipped to a larger copper pour. For typical freewheeling/snubber service where duty cycle is low and average current <100 mA, no heatsinking is required.
Do not substitute 1N4007 for FR107-G in any application involving switching frequencies above ~1 kHz, because the 1N4007's 30 µs reverse recovery time is 60x slower than FR107-G's 500 ns. Per the Hotenda cross-reference catalog, this causes excessive switching loss and possible secondary breakdown in the rectifier. Equally, do not substitute FR107-G for UF4007 in a high-frequency (>50 kHz) SMPS - the 500 ns trr is too slow, causing significant switching loss. Verify both VRRM and trr when selecting a replacement - same VRRM does not imply equivalent performance.
For 220 VAC line rectification, keep the FR107-G body and leads away from low-level analog circuitry by at least 5 mm to avoid capacitive coupling of switching transients. Add an X2-class line-filter capacitor across the transformer primary and an MOV across the AC input to limit transient overvoltages that could exceed the 1000 V VRRM rating. Polarity is unambiguous because the cathode end has a polarity band - but in low-light manufacturing, verify with a DMM in diode-test mode before soldering into a populated bridge.
Informations de conformité
FR107-G is RoHS-compliant and lead-free per the -G suffix in Comchip's part-number convention. AEC-Q100 is not applicable for this through-hole discrete diode (AEC-Q100 targets automotive-grade ICs and some passives).
